View Manual
Contents
1. se e s s e 9 9 2 e e s 9 eee 9 9 9 9 9 99 9 lt e oops oc e e e 9 e q 9 q e gt a q e lt e e lt e 9 9 e 5 e e 9 9 e DESCRIPTION q ya payaa eer THEORY OF OPERATION ENGINE SPECIFICATIONS S N 78001 thru S N 78001304 ENGINE SPECIFICATIONS S N 78001305 UP ENGINE PREPARATION FOR OPERATION ENGINE STARTING PROCEDURE S N 78001 thru S N 78001304 ENGINE STARTING PROCEDURE S N 78001305 up STOPPING THE ENGINE e ASSEMBLING INSTRUCTIONS OPERATING INSTRUCTIONS CONTROL VALVE ass CALIBRATING INSTRUCTIONS eee nes CONVERSION TABLE ENGINE ADJUSTMENTS2. Fuel and Oil Mixture 3 Insecticide Tank Capacity Er Brandes 9 Lubrication 3 pa eame es Net Weight sco 3 Shipping Cube 3 Shipping Weight msn ee a k 9 dee re Spark Plug Starting Procedure Engine S N 78001 thru S N 78001304 eee 10 Engine S N 78001305 up III 12 13 hh hh Stopping the Engine Storage Preparations for ee eee eee eee hn n 17 Theory of Operation kayla ann ana se ann 7 13 INDEX Storage Preparations for zen e Vie ee Paes Ga ie a die Theory of Operation ebi ayl pusa ms Dee ee Trouble Shooting Checklist Carburetor S N 78001 thru S N 78001304 Leco P 1 Aerosol Generator e e e 9 e e e a e 9 e e e e lt e e e e o v9 s 9 9 9 9 e q 9 9 e 9 v9 q s e e e
3. ENGINE MAINTENANCE INSTRUCTIONS PREPARATION FOR STORAGE CONTENTS ILLUSTRATED PARTS BREAKDOWN SECTION ILLUSTRATED PARTS BREAKDOWN ENGINE BARTS o en E Rae CARBURETOR SERVICE MANUAL S N 78001 thru S N 78001304 TROUBLE SHOOTING CHECKLIST S N 78001 thru S N 78001304 CARBURETOR SERVICE MANUAL S N 78001305 up LECO P1 TROUBLE SHOOTING CHECKLIST 9 9 9 9 9 s v v q e e Figure 1 m Hii 1 SCOPE This manual provides the description theory of operation operating instructions calibrating instructions maintenance instructions and illustrated parts breakdown for the LECO 1 Aerosol Generator DESCRIPTION The LECO P 1 Aerosol Generator is designed for indoor and outdoor use It consists of a centrifugal blower driven by a 2 cycle gasoline engine a discharge head an insecticide tank and insecticide flow control valve with four adjustable flow rate settings The Generator is a complete hand held unit weighing only 17 pounds See Figure 1 THEORY OF OPERATION The LECO P 1 Generator is designed for dispersing insecticides at an Ultra Low Volume ULV rate with droplets of optimum size The insecticide is forced from the tank through the system by air pressure obtained f
4. b 42 NO 91201 ENGINE Continued Used on S N 780021 thru S N 78001304 Reference Figure 25 Ref Oy Plus amp minus Screw Assembly SW W Nut M4 Bolt Cross Recessed Carburetor Assembly See Page 48 for Parts Breakdown Figure 6 NO 91460 ENGINE Used on S N 78001305 up Reference Figure 26 U s Crankcase Assembly Includes Items 2 3 4 Oil Seal Ball Bearing Crankcase Gasket Cylinder Spark Plug Cylinder Gasket Oylinder Cover Crankshaft Complete Piston Piston Pin Piston Ring Clip Housing Recoil Starter Complete Includes Items 17 thru 27 Starter Knob Spiral Spring Starter Rope Reel Dog Starter Case Wave Washer Starter Pulley Retainer Washer Center Screw M5 Exhaust Muffler Muffler Gasket Socket Head Bolt Muffler Cover Fuel Tank Fuel Tank Cap Spacer 1 2 2 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 45 NO 91460 ENGINE Continued Used S N 78001305 up Reference Figure 26 Tube Hose Clamp Fiy Wheel Magneto Includes Items 40 41 Fiy Wheel Coil Plug Cap Grommet Plug Cap Spring Insulator Nut Gasket Insulator Gasket Insulator Plate Woodruff Key Filter Includes Items 54 thru 58 Filter Body Assembiy Filter Clip Filter Felt Filter Retainer Filter Packing Tapping Screw Washer Bolt Assembly Washer Socket Head Bolt Screw Assembly Screw Assembly Socket Head Bolt Counter
5. 3 5 4 41 Engine S N 78001305 up In 45 Insecticide Tank Assembly S N 78001 thru S N 7800810 32 Insecticide Tank Assembly S N 7800811 thru S N 78001936 33 Insecticide Tank Assembly S N 78001937 up 33A Nozzle Head Assembly S N 78001 thru S N 7800909 30 Nozzle Head Assembly S N 7800910 up 31 Preparation for Storage Aerosol Generator hh hh hh hh tnn 17 Engine MM 17 Flushing s 22 0 en er TA RUP AA oue pr died ara 17 Preventive Maintenance hn n n n 17 Scope D L 7 Serial Number Record hh h n 3 Setting theFlowRate 0 sesime nn 15 Shipping Cube eee hn nnn 3 Shipping Weight hh 3 ese nenne 9 nenne eben 2 Spark Plug Spark Plug Gap hh II Henn 16 3 hA hh Specifications hh het 3 Aerosol Generator 9 78001304 Engine S N 78001 thru S N Hn nnn 9 Engine S N 78001305 up ht rr nnn 9
6. pi pi m pi RM RA Metering Cover Screw 50 87 230814 NO 30065 CARBURETOR and AIR CLEANER ASSEMBLY Used on S N 78001305 up Reference Figure 28 Carburetor Includes Items 2 thru 18 20 21 25 26 Throttle Valve Assembly Pump Body Assembly Air Purge Body Assembly Pump Gasket wr Pump Diaphragm Pump Plate Gasket Plate Metering Diaphragm Gasket OE UC Metering Diaphragm Assembly Pump Primer Primer Pump Cover Plug Packing Ring Inlet Screen Jet O Ring Spring Retaining Ring Swivel Cable Bracket Throttle Collar Screw Pump Cover Screw Holder Overflow Spring Tube Air Cleaner Case Spacer Choke Lever Gasket Air Intake Plate Air Cleaner Element Air Cleaner Case pa pa pa Rx M FR RA R de d NO 30065 CARBURETOR and AIR CLEANER ASSEMBLY continued Used on S N 78001305 up Reference Figure 28 Screw Assembly Pan Head Screw in b Robin ROBIN CARBURETOR SERVICE MANUAL For SIN 78001 thru SIN 78001304 Cleaner cover Air cleaner Pressure intake Primer pump nlet screen Valve spring Metering lever Diaphragm assembiy Metering chamber Carburetor body Throttle valve Low speed fuel adjusting screw Low speed needle High speed fuel adjusting screw Eg Lock nut nu Wire adjust screw
7. 0 ULV FOG GENERATOR w INSTRUCTION MANUAL AND LOWNDES ENGINEERING COMPANY INC LECO LECO QUALITY MEANS GREATER VALUE WARRANTY Lowndes Engineering Co Inc guarantees each new LECO Aerosol Generator to the extent that For a period of one 1 year from date of purchase Lowndes Engineering Co Inc will replace free of charge any part or parts of the Generator found upon examination to be defective in material and or workmanship Such examination shall be made at the LECO factory in Valdosta Georgia USA or at any point designated by Lowndes Engineering Co Inc The examination shall be made by a person or persons approved by Lowndes Engineering Co Inc Any part or parts returned under provisions of this Warranty shall be returned transportation prepaid This is the total extent of the Warranty The following are specific items and or situations not covered by the Warranty 1 Engine The engine is subject to the Warranty of its manufacturer 2 The cost of labor in connection with replacement or repair of defective parts 3 A Generator upon which alterations have been made 4 caian damages or contingent liabilities arising out of the failure of any Generator to operate properly 5 Any express implied or statutory warranty other than set forth above Copyright 1989 1991 Lowndes Engineering Co Inc rights reserved Manufactured by Cs 1
8. Spark Plug Spark Plug Gap Setting Spark Plug Recommendations Engine Choking Primer Pump Engine Maintenance Instructions Engine Preparation for Operation Fuel and Oil Mixture Engine Specifications Carburetor Displacement Fuel Oil Mixture INDEX Engine Specifications continued Lubrication e E ARN Vedi So Oleg eae na eee 9 Spark Plug A Y SURE RE aei ete Been enn 9 Tank Capacity cece erence teeter ence teen eens hh 9 Boy hee ee ES Bate ERENCE RHOADS SUES MRE 9 Engine Starting Procedure For S N 78001 thru S N 78001304 5 10 Por S N 78001305 up isse b ee Rn ore hg 12 Filling Insecticide Tank 14 Flow Rate Conversion Table sa oam act LR 15 Flow Rate Settings nenne n 13 Foreword ien RR RAD a Die Ge e 4 Fuel and Oil a heb ee gina e 9 Fuel Tank Capacity i For S N 78001 thru S N 78001304 9 For S N 78001305 p ana k Xe a 9 Illustrated Par
9. Automatic pump for pulling fuel from fuel tank Needle valve For keeping fuel pressure constant as metering lever and diaphragm PRINCIPLE OF OPERATION Reference Figure 29 page 54 For S N 78001 thru S N 78001304 Fuel Pump A change of pressure in the crank case is applied to one side of the diaphragm to vibrate it Fuel is pulled up from the tank by increasing or decreasing its volume on the non pressurized side by such vibration Needle valve metering lever and diaphragm When fuel is pulled from the metering chamber by the engine s suction pressure pressure in the chamber is reduced The diaphragm is moved up by atmospheric pressure When such pressure exceeds the pressure of the spring pushing down one end of the metering lever this end is lifted up This action brings down the other end to which the needle valve is attached The end of the needle valve leaves a hole through which fuel pulled up by the fuel pump flows into the metering chamber When the metering chamber is filled with fuel the diaphragm is moved down by increased pressure One end of the metering lever is pushed down by the spring lifting up the needle valve on the other end The needle valve covers the hole thus stopping fuel flow In this way needle valve metering lever and diaphragm keep constant pressure in the metering chamber Unless this pressure is constant a constant volume of fuel cannot be pulled up by the engine s suction pressure resulting in e
10. sa aa e Re drea Fc EN A RR x SCR dci 3 Insecticide Tank Capacity eg deua paw pde pe Vac edu e quod Sud Ma 3 Filling Procedure uns es eciam eade a E teat 14 Instructions no oup p rer 14 Calibrating Flow Rate 15 Engine Maintenance ga ose xatd a Aa Nea CORR EE 17 Filling Insecticide Tank 14 Operating 4 ce pet e e Qu Ds e a la tebe 14 Lubrication usaspa ard Aen des E Doll Sie efe 9 Manual Due se et on LATE re e a O O 3 Net Weight RES a SSeS Dea ase OE A 3 Parts Breakdown Section h t nn 19 Air Cleaner Assembly S N 78001305 up e 51 Bearing Support 1 0 cece eee eee Hh nnn 27 BG WEE aco re ER u e AER PAS Sec de 29 Carburetor S N 78001 thru 78001304 MH 48 Carburetor S N 78001305 up nn 51 Complete Unit S N 78001 thru S N 7800810 21 Complete Unit S N 7800811 up eee 25 Control Valve e a en 34 Engine S N 78001 thru S N 780020 37 Engine S N 780021 thru S N 78001304
11. Lever height is important 2 Maintenance requirements See Figure 31 page 60 Lever height The metering lever must be installed at 059 inch 1 35 1 65 mm lower than the body surface Control lever must move smoothly 59 CHARACTERISTICS OF MAIN PARTS MAINTENANCE REQUIREMENTS CAUTIONS FOR DISASSEMBLY AND REASSEMBLY continued For S N 78001 thru S N 78001304 Metering lever 059 inch AL Body surface Needle valve Y 7 Valve spring Figure 31 3 Cautions for disassembly and reassembly Ensure that the valve spring is put firmly on the convex part of the lever Ensure that the hook of the lever catches the needle valve firmly Ensure that the metering lever moves smoothly E Valve spring 1 Characteristics See characteristics of diaphragm page 58 Spring tension is very important Do not stretch or compress the valve spring 2 Maintenance requirements Free length 34 inch 8 7 mm The valve spring must not be deformed replace defective spring by new one 3 Cautions for disassembly and reassembly Do not pull the spring when disassembling Put the spring firmly on the convex part of metering lever F Pump diaphragm 1 Characteristics The pump diaphragm sends fuel under pressure to the needle valve Any malfunction of this part causes engine troubles engine stop faulty acceleration etc CHARACTERISTICS OF MAIN PARTS MAINTENANCE REQUIREMENTS CAUTIONS FOR DISASSEMBLY A
12. Throttle wire Diaphragm cover Figure 29 CONSTRUCTION Reference Figure 29 page 54 For S N 78001 thru S N 78001304 In this figure the top represents the air cleaner side and the bottom represents the cylinder side Air flows from the air cleaner side to the cylinder side Arrows indicate the direction of fuel flow solid arrows when engine runs normally and dashed arrows when operating the primary pump Low speed fuel adjusting screw For fuel adjustment at low speed Clockwise to lean and counterclockwise to rich Adjusted to the middle of 5 notches at shipment Low speed needle Already adjusted at shipment Do not change High speed fuel adjusting screw For fuel adjustment at high speed Clockwise to lean and counterclockwise to rich Return by 1 1 2 turns from fully closed position Idling adjust screw For adjusting idling RPM S Clockwise to increase and counterclockwise to decrease Air cleaner For removing air dust Clean periodically or engine trouble may result Pressure intake For taking in pressure from the crank case through the insulating plate to start fuel pump Set the plate and packing in correct order or pressure may leak or stop causing engine trouble Primer pump Manual pump for feeding starting fuel from fuel tank to carburetor No more operation is needed when you see fuel jetting from carburetor peep window by operating this pump Inlet screen For removing dust from fuel Fuel pump
13. Mix between 20 and 25 to 1 thereafter ENGINE SPECIFICATIONS S N 78001305 up Engine Type Robin Two Cycle Fuel Tank 0 6 Liter Displacement 222 cc Spark Plug NGK 1 35 cu in Champion POR Starter Auto Rewind Spark Plug Gap 0 6 0 7 mm Carburetor Position Diaphragm Type Lubrication Fuel Oil Mix between 15 and 20 to 1 for the first 20 hours Fuel Oil Mix between 20 and 25 to 1 thereafter ENGINE PREPARATION FOR OPERATION Fuel and Oil Mixture Inspect the fuel tank and fill with clean fresh fuel of the proper mixture This engine requires a mixture of gasoline of between 20 and 25 parts gasoline to 1 part oil 1 gal gasoline to 6 oz oil of regular leaded gasoline For the first twenty hours use the mixing ratio of between 15 and 20 to 1 DO NOT USE BIA OIL DO NOT MIX GASOLINE AND OIL DIRECTLY IN THE ENGINE FUEL TANK IMPORTANT Failure to follow proper fuel mix instructions could result in serious damage to the engine CAUTION When preparing fuel mixture mix only the amount needed for the job you are to do Do not use fuel mixture that has been stored longer than two 2 months Fuel mixture stored longer than this will cause hard starting and poor performance If fuel mix has been stored longer than this time it should be removed and filled with a fresh mixture CAUTION NEVER fill the fuel tank to the inlet port level NEVER add fuel to the tank i
14. e e 9 lt e A ar ETT Domestic Shipping se sl eae Sea Ae Export Shipping sv eee ES ER A AE Net 9 9 9 4 LECO PRODUCTS Manufactured by ENGINEERING e I TECHNOLOGIES INC 159 N Garden Ave PO Box 72197 Roselle IL 60172 Phone 630 894 2000 Fax 630 582 0706
15. valve the volume of fuel is regulated by the clearance between the nozzle pipe slit and low speed needle or the clearance between the end of the high speed fuel adjusting screw and body hole Fully opened When throttle valve is opened fully the throttle valve and low speed fuel adjusting screw move to the left to open the nozzle pipe slit enough to feed fuel to the engine after its volume is regulated by the clearance between the end of the high speed fuel adjusting screw and the body hole CHARACTERISTICS OF MAIN PARTS MAINTENANCE REQUIREMENTS CAUTIONS FOR DISASSEMBLY AND REASSEMBLY For S N 78001 thru S N 78001304 A diaphragm carburetor consists of more parts than a float carburetor and its system is more complex Characteristics of the main parts maintenance requirements and cautions for disassembly and reassembly are described in detail as follows A High speed fuel adjusting screw and low speed air adjusting screw 1 Characteristics These parts regulate the jet volume of fuel and air to meet the volume required by the engine The operation ranges of the high speed fuel adjusting screw and low speed air adjusting screw are roughly described as follows The high speed fuel adjusting screw hereinafter called H screw regulates the volume of fuel when the throttle valve is opened almost fully The low speed air adjusting screw hereinafter called L screw regulates the volume of fuel when idling 2 Maintenance requireme
16. 00 90443 90542 90994 91310 218 Figure NO 31072 INSECTICIDE TANK ASSEMBLY Used on S N 78001937 up Reference Figure 22A Description M oa 7963 Insecticide Tank 31071 Drop Pipe and Filter 90443 3 8 Nylon Ferrule Nut 90396 Male Elbow 1 4 Tube x 1 4 Pipe 90400 1 4 Nylon Ferrule Nut 90542 1 1 4 Nylon Pipe Plug 90994 1 Tank Cap 91310 218 1 Viton O Ring 33A Figure 2 NO 8332 INSECTICIDE TANK ASSEMBLY Used on S N 7800811 thru S N 78001936 Reference Figure 22 71963 Insecticide Tank 8339 Drop Pipe and Filter 90443 3 8 Nylon Ferrule Nut 90396 Male Elbow 1 4 Tube x 1 4 Pipe 90400 1 4 Nylon Ferrule Nut 90542 1 4 Nylon Pipe Plug 90994 Tank Cap 91310 218 Viton O Ring Figure 3 NO 7602 CONTROL VALVE Reference Figure 23 Description Bonnet Needle Stop Disc Body Handle 7605 7726 7727 7872 91310 012 91310 009 1278 021 1278 022 1278 051 Viton O Ring Viton O Ring Set Screw Socket Head 10 24 x 3 16 Set Screw Socket Head 10 32 x 3 16 Set Screw Socket Head 10 24 x 3 8 0 ONDUA DD pa pa pa pa pa pa ha o 34 ENG NE PARTS Figure 4 NO 91201 001 ENGINE Used on S N 78001 thru S N 780020 Reference Figure 24 Crank Case Includes Items 2 3 4 Oil Seal Bali Bearing Crank Case Packing Cylinder Cylinder Cover Spark Plug Cylinder Packing Crank Shaft Piston 1
17. 2 3 4 5 6 7 8 9 Needle Bearing Piston Pin Piston Ring Clip Recoil Starter Includes Items 16 thru 23 and Item 64 Starter Knob Spiral Spring Starter Rope Reel Ratchet Friction Spring Friction Plate Return Spring Muffler Assembly Muffler Cover Muffler Gasket Screw Pan Head Fuel Pump Assembly Includes Item 29 Hose Clamp Fuel Tank Fuel Tank Cap Rubber Tube pa NM pa pa pa pi pi pa pa pi N D RS ok T NO 91201 001 ENGINE Continued Used on S N 78001 thru S N 780020 Reference Figure 24 Description Weight Felt Fuel Pipe Spacer Spacer Ring Magneto Includes Items 40 and 41 Fiywheel gnition Coil Washer Grommet Plug Cap Spring Washer Left Nut Left Heat Insulator Heat Insulator Packing Carburetor Heat Insulator Packing Stop Button Label Label Caution Bolt Cross Recessed Filter Washer Washer Washer Spring Washer m Y R pa pa pa ph pi peki BR PN m F EN Screw Screw Screw Screw Screw Screw Screw NO 91201 001 ENGINE Continued Used S N 78001 S N 780020 Reference Figure 24 Woodruff Key Steel Ball Carburetor See Page 48 for Parts Breakdown Washer Washer Screw Washer Screw Washer Screw t2 NNN N DN rr 39 40 210814 NO 91201 ENGINE Used on S N 780021 thru S N 78001304 Ref
18. ENGINEERING AR Vn TECHNOLOGIES INC 159 N Garden Ave PO Box 72197 Roselle IL 60172 Phone 630 894 2000 Fax 630 582 0706 3 a LECO P 1 SPECIFICATIONS Manuafissue _LECO P 1 01 95 Revised 01 97 Engine Robin Two Cycle Blower LECO Special Design Dispersal Head LECO Design with no moving parts Insecticide Tank 35 Gallon 1 32 Liters Polyethylene S N 78001 thru S N 7800810 66 Gallon 2 50 Liters Polyethylene S N 7800811 up Insecticide System Pressurized by blower no pump necessary Controls Consists of flow control valve with four adjustable flow rate settings Net Weight Empty 17 Pounds Shipping Weight Domestic 22 Pounds Shipping Weight Export 26 Pounds Shipping Cube 2 31 Feet REGISTRATION THIS MANUAL IS FOR MY LECO AEROSOL GENERATOR LECO MODEL P 1 SERIAL NUMBER THE ABOVE INFORMATION WHICH CAN BE FOUND ON THE HANDLE BRACE OF THE MACHINE SHOULD BE FILLED IN YOUR PROMPT ATTENTION TO THIS MATTER WILL MAKE IT CONVENIENT FOR YOU IN THE FUTURE AS THIS INFORMATION MUST BE GIVEN WHEN ORDERING PARTS FOREWORD Every effort has been made to make this manual as complete as possible so that it will provide maximum assistance in operating and maintaining your LECO Cold Aerosol Fog Generator This manual is divided generally into two sections Operating and Maintenance Section and Illustrated Parts Section The Operating and Maintenance Section contains complete instructions for oper
19. N BE SURE ORDER REPLACEMENT PARTS BY PART NUMBER AND SERIAL NUMBER OF YOYA A Procedure for determining correct part number and description of individual parts 1 Refer to the complete unit breakdown illustration on page 20 and page 24 and the parts list on pages 21 22 and pages 25 26 2 If the individual part is shown on the illustration the part number and description can be obtained from the parts list 3 If the part is a component of an assembly the location of the assembly breakdown can be obtained from the parts list This assembly breakdown will identify the individual part NOTE If there is a reference to serial numbers please take this into consideration 19 20 288145 COMPLETE UNIT S N 78001 thru S N 7800810 Reference Figure 15 Nylon Tube 1 4 OD x 10 Inches Nylon Tube 3 8 OD x 8 Inches Adaptor Base Flange Ring Handle Bar Blower See Page 29 for Parts Breakdown Support Bar Control Valve See Page 34 for Parts Breakdown Base Column Channel Bracket Handle Brace Nozzle Head Assembly See Page 30 for Parts Breakdown Washer 11 32 x 1 1 8 x 1 8 Insecticide Tank Assembly See Page 32 for Parts Breakdown Strap Tank and Column Assembly Male Elbow 1 4 Tube x 1 4 Pipe 1 4 Nylon Ferrule Nut Two Cycle Engine Used on S N 78001 thru S N 780020 See Page 37 for Parts Breakdown Two Cycle Engine Used on S N 780021 thru S N 7800810 See Page 41 for Par
20. ND REASSEMBLY continued For S N 78001 thru S N 78001304 2 Maintenance requirements The check valve of the pump diaphragm must be flat and not damaged replace defective valve with new one 3 Cautions for disassembly and reassembly Do not deform or damage the diaphragm when disassembling Do not mistake the direction of the diaphragm and the order of packings when reassembling Take care not to turn over the edge of the diaphragm when reassembling 61 TROUBLE SHOOTING CHECKLIST ROBIN CARBURETOR For S N 78001 thru S N 78001304 TROUBLE POSSIBLE CAUSE REMEDY Fuel is not reaching the Pump diaphragm damaged Replace carburetor fuel only moves up and down Check valve pump diaphragm deformed or Repair or replace between fuel tank and damaged carburetor Pump diaphragm and gasket set in incorrect Correct order order Carburetor fixing part loose or packing Retighten or replace damaged Fuel is reaching Choke not closed fully Close choke fully check carburetor but not choke cylinder Needle valve glued Disassemble and clean or replace Fuel passage clogged Disassemble or clean Metering lever lower Adjust correctly Valve spring not set properly Set correctly Faulty high speed function H L screws tightened too much Adjust correctly Excess fuel is pumped Dust adhered between needle valve and seat Disassemble and clean flooded condition H L screws adjustment incorrect Adjust correc
21. ating and maintaining your LECO Cold Aerosol Fog Generator No difficulty should be encountered in following them Before attempting to start your unit the first time study the complete Operating Instructions carefully and identify all parts referred to You will find that the operation of your LECO Cold Aerosol Fog Generator is a simple matter of calibrating the flow rate and operating the control valve However like all mechanical equipment your unit requires a certain amount of maintenance The Maintenance Instructions will enable your LECO Cold Aerosol Fog Generator to give you continuous and trouble free service It is highly recommended that some system be established to assure the performance of this maintenance as its importance cannot be over emphasized The Illustrated Parts Section of the manual is made up of exploded views and parts lists Every part of the unit is illustrated and identified with a part number Always order parts by part number description and the serial number of your unit Although with proper maintenance your unit should operate indefinitely without any trouble there might come a time when trouble does develop For such an occasion a complete Trouble Shooting section has been prepared and included in this manual e 9 a 9 9 e 9 9 1 9 9 e e e
22. bling Instructions II Blower is a em Calibrating Instructions Dosage Setting the Flow Rate Capacity puel Tank EA usa ki eR es Insecticide Carburetor Adjusting S N 78001 thru S N 78001304 Carburetor Service Manual S N 78001 thru S N 78001304 Adjustingg Ie Cautions for Disassembly and Reassembly Characteristics of Main Parts Construction Maintenance Requirements Operation Principle of Operation Trouble ShootinggChecklist Carburetor Service Manual S N 78001305 up Control Valve Setting the Flow Rate Controls at xeu we No e m E Conversion Table Flow Rate a xxm E Eo WO Eoi eec Description Dispersal Head Engine Engine Adjustments Carburetor S N 78001 thru S N 78001304 Carburetor S N 78001305 Iding RPM pre ee ce poker e Magneto Setting
23. dosage We suggest that you follow the label recommendation on the insecticide you use or follow the recommendation of a reliable testing agency To Calibrate 1 Fill the insecticide tank with a known measure of insecticide 2 Set the control valve at a specific stop 3 Spray for a specific time The longer this time period the more accurate the calibration will be 4 Remove the remaining insecticide from the tank and measure The difference in the starting and ending measurement will be the usage for the specific time spraying took place From this information the flow rate can be determined The Conversion Table below will be helpful if it is necessary to calibrate in a unit different from that given in the dosage recommendation CONVERSION TABLE MULTIPLY TO OBTAIN 15 ENGINE ADJUSTMENTS Spark Plug the spark plug electrode area has an excess of carbon buildup the efficiency of the plug will be seriously reduced REMOVE THE CARBON WITH A SPARK PLUG CLEANER OR WIRE BRUSH After cleaning the spark plug RESET THE ELECTRODE GAP TO 0 6 0 7 mm 024 028 Recommended spark plug BM7A Champion CJ4 or CJ6 Magneto The gap between the coil and the flywheel should be 0 4 to 0 5 mm Carburetor S N 78001 thru S N 78001304 Proper adjustment of the carburetor is very important to the operation of this engine The carburetor has been carefully adjusted at the factory and therefore should no
24. erence Figure 25 Crank Case Complete Includes Items 2 3 4 Seal Ball Bearing Crank Case Packing Cylinder Oylinder Cover Spark Plug Cylinder Packing Crank Shaft Complete Piston OANA na eh WN Needle Bearing Piston Pin Piston Ring Clip Recoil Starter Complete Includes Items 16 thru 23 62 Starter Knob Spiral Spring Starter Rope Reel Ratchet Friction Spring Friction Plate Return Spring Muffler Assembly Muffler Cover Muffler Gasket Screw Socket Head Hose Clamp Fuel Tank Fuel Tank Cap Complete Rubber Tube Filter 1 2 2 1 1 1 1 1 1 1 1 1 2 2 1 1 1 1 1 1 1 1 1 1 1 1 2 3 1 1 1 1 41 NO 91201 ENG NE Continued Used on S N 780021 thru S N 78001304 Reference Figure 25 T s Fuel Pipe Connector Fuel Spacer Magneto Complete Includes 41 42 Fiywheel gnition Coil Grommet Plug Cap Complete Spring Washer Left Nut Left Heat Insulator Gasket Spacer Heat Insulator Packing Cylinder Stop Button Complete Label Label Caution Bolt Cross Recessed Spacer Washer Washer Spring Washer Plus amp Minus Screw Plus amp Minus Screw Assembiy Screw Plus amp Minus Screw Assembiy W Screw Plus amp Minus Screw Assembly SW Plus amp Minus Screw Assembiy SW Woodruff Key Plus amp Minus Screw Plus amp minus Screw Washer NN We Ap RO NY WH W NR pa RA Be R pi
25. he air cleaner assembly for excessive dust or dirt If the filter requires cleaning use the following procedure Remove the filter and wash in soap and water or blow off with compressed air DO NOT clean filter in gasoline or other inflammable solvent PREPARATION FOR STORAGE Before storing the Generator after use or if it is to be idle for any appreciable length of time the following preparations should be made Remove the insecticide from the tank 2 suitable solvent in the tank Start the engine and flush the system thoroughly 3 Drain all fuel from the fuel tank and carburetor Remove the spark plug and pour a teaspoon of oil through the plug hole Rotate the crankshaft several times by pulling the starter handle slowly Replace the spark plug 17 CONTENTS ILLUSTRATED PARTS BREAKDOWN SECTION NO 7618 NOZZLE HEAD ASSEMBLY S N 78001 thru S N 7800909 NO 8629 NOZZLE HEAD ASSEMBLY S N 7800910 thru 78002063 NO 30327 NOZZLE HEAD ASSEMBLY S N 78002064 up NO 7706 INSECTICIDE TANK ASSEMBLY S N 78001 thru S N 7800810 NO 8332 INSECTICIDE TANK ASSEMBLY S N 7800811 thru S N 78001936 NO 31072 INSECTICIDE TANK ASSEMBLY S N 78001937 NO 7602 CONTROL VALVE Diva o Fees uk N l uum luu 18 ILLUSTRATED PARTS BREAKDOWN SECTIO
26. ide tank filled completely to top Leave a 1 2 air space at the top of the tank when filling See page 14 Figure 13 Fittings crossthreaded or defective Retighten or replace Defective O ring Chemical leaks at fittings Chemical leaks at insecticide tank cap Replace Tank cap crossthreaded Retighten Engine has poor acceleration or low RPM Bad timing Adjust Carbon accumulated in muffler tail pipe Cylinder exhaust port etc Clean Point dirty or damaged Clean or replace Reed valve damaged Replace Gas escaping from crank case Inspect and replace crank case packing Carburetor plugged Clean See carburetor trouble shooting checklist page 62 OUBLE SHSOTING CHECKLIST continued POSSIBLE CAUSE Dirty carbusier Clean See trouble shoo page 62 Bad timing Adjust Fuel cap vestglugged Clean Engine burs out Replace cylir ring etc Carbon accumlated in Clean Spark plug Use correct 1 No fuel in tak Fili tank No or weakgark Replace coil point etc Set spark plu Replace spar Poor Control valwstop set at toohigh position Blower probe Inspect cylinc etc Replace Decrease sett Inspect Rep Engine not mening smooth Low air presse on insedicile tank Increase engi Defective at insectici e tank cap Rep
27. ket Retighten Main nozzle clogged H screws system Disassemble and clean Needle valve clogged Disassemble and clean Control valve and valve spring not set Set correctly properly Metering lever higher Adjust correctly Diaphragm not set properly Set correctly 63 obin ROBIN CARBURETOR SERV CE MANUAL FOR 5 78001305 UP 65 The following is not available at this time on the carburetor used 5 78001305 up Construction Principle of operation Operation Characteristics of main parts maintenance requirements cautions for disassembly and reassembly TROUBLE SHOOTING CHECKLIST LECO P 1 AEROSOL GENERATOR 67 TROUBLE SHOOTING CHECKLIST TROUBLE POSSIBLE CAUSE Worn bearings Replace Replace Leave a 1 2 air space at the top of the tank when filling See page 14 Figure 13 Blower troubles Defective fans and or baffles Chemical drips from blower Insecticide tank filled completely to top while not running Unit has been positioned such that chemical has run out of the insecticide tank into the blower through the air pressure tube This can happen when the engine is not running Start the engine and run at full throttle until the blower js cleared Chemical drips from blower Engine RPM too low while running Set throttle for maximum RPM Excessive flow rate Reduce Insectic
28. lace Control valwstop set at toolow position Increase setti Defective bimer Repair Low engine PM Increase to m 69 rar Hr TROUBLE Engine running rough Engine stops while operating Engine will not start Excessive chemical flow Excessive vibration Insufficient chemical flow Insufficient or no air pressure TROUBLE SHOOTING CHECKLIST continued TROUBLE POSSIBLE CAUSE REMEDY No chemical flow Fill No chemical in insecticide tank Control valve closed or stopped up Open or clean Replace No air pressure on insecticide tank caused by missing or defective O ring at insecticide tank cap Clean or replace No air pressure on insecticide tank caused by plugged air pressure tube Strainer in insecticide tank dirty or plugged Clean or replace Insufficient air pressure on insecticide tank Increase engine RPM Fans and baffles hitting Defective bearings Engine Parts uo e de e RARIOR RO CR c ioca e e e q e e 9 lt 9 e e e q w e lt e e e INDEX Air Cleaner Cleaning sevenlere Assem
29. lways be running at its fastest speed when discharging insecticide 5 Close the control valve to stop the flow of insecticide Release the throttle to reduce the engine RPM to idle Note It is absolutely necessary to close the control valve before reducing the engine speed If the control valve is left open with the engine idling the insecticide will not be atomized and will drip from the nozzle 6 Stop the engine See page 13 for engine stopping instructions NOTE Do not fill the insecticide tank completely to the top Leave a 1 2 air space at the top of the tank If the tank is filled completely to the top the insecticide will be forced into the blower when the throttle is released If this happens the insecticide will drip from the blower See Figure 13 CONTROL VALVE Reference Figure 2 page 8 The control valve reguires very little maintenance 11 is stainless steel with a viton O ring Looking down on the control valve fully clockwise is closed To open valve rotate the handle counterclockwise to set screw stop The valve has four adjustable stops for the flow rate setting To change the flow rate simply relocate the set screw stop The four set screw stop locations will give approximate flow rates of 1 4 1 2 3 4 and full flow respectively as the control valve is rotated from the closed position to the counterclockwise direction CALIBRATING INSTRUCTIONS Dosage It has never been our policy to recommend insecticide
30. n a closed unventilated area DO NOT add fuel to this unit near an open fire or spark BE SURE to wipe off spilled fuel before attempting to start the engine DO NOT attempt to refuel an extremely hot engine ENGINE STARTING PROCEDURE S N 78001 thru S N 78001304 Fully open fast Fully closed idle Figure 3 1 Put the throttle in fully closed idle position See Figure 3 IF ENGINE IS HOT SKIP TO STEP 5 Figure 4 2 Give a gentle push to the primer pump See Figure 4 Red Green Figure 5 3 Stop pushing the primer pump immediately as soon as the fuel mixture appears in the red upper section The lower section is green See Figure 5 10 ENGINE STARTING PROCEDURE continued S N 78001 thru S N 78001304 Partly open position Stop button Figure 6 4 Depress the throttle lever completely push the stop button and take your hand off of lever The stop button will lock the throttle lever in partly open position See Figure 6 lt Figure 7 5 Pull the recoil start briskly See Figure 7 CAUTION Gradually return handle Do not let it snap back Pull the rope in the direction of the starter rotation Do not pull the starter rope all the way out of the drum 6 Letthe engine warm up by running it at a low RPM slow speed for approximately one or two minutes CAUTION NEVER OPERATE THE ENGINE AT HIGH RPM WITHOUT LOAD With throttle fully opened and no load the engine rpm will be very high
31. n have an adverse effect on the life of the engine STOPPING THE ENG NE 1 Reduce the engine RPM to idle 2 Stop the engine by pushing the stop button See Figure 2 page 8 Pull the recoil start knob slowly and return the knob to its original position when resistance is felt This is necessary to prevent outside moist air from intruding into the combustion chamber See Figure 2 page 8 13 ASSEMBLING INSTRUCTIONS Reference Figure 2 page 8 The LECO P 1 Generator is shipped completely assembled for operation Only the insecticide and gasoline mixture need be added OPERATING INSTRUCTIONS Reference Figure 2 page 8 and Figure 13 1 Fill the engine fuel tank with correct gasoline mixture see page 9 2 Fill the insecticide tank to within 1 2 to the top of the tank see Figure 13 Note It is absolutely necessary that the insecticide be free of trash Any trash or suspended solid matter may stop up the control valve It is recommended that the insecticide be filtered before filling the tank When replacing the tank cap be sure the O ring is in place 3 Start the engine See page 10 for engine starting instructions on units with S N 78001 thru S N 78001304 or page 12 for units with S N 78001305 up 4 Depress the throttle lever to obtain the fastest running speed of the engine Open the control valve to start the flow of insecticide The machine should now be discharging the insecticide The engine should a
32. n on page 31 Spreader Ring Baffle Assembly Body for replacement order 8701 Body Replacement Kit Machine Screw S S P Flat 10 32 x 1 2 8701 Body Replacement Kit consists of 1 8664 Nozzle shown on page 31 1 8671 Body shown on page 31 1 91310 014 Viton O Ring shown on page 31 30 1907 072 11 Figure 20 NO 8629 NOZZLE HEAD ASSEMBLY Used on S N 7800910 thru S N 78002063 Reference Figure 20 8664 Nozzle 7617 Spreader Ring 8527 Baffle Assembly 8671 Body 1907 072 Machine Screw S S P Flat 10 32 x 1 2 1907 112 Machine Screw S S P Flat 10 32 x 7 8 91310 014 Viton O Ring Figure 4 NO 30327 NOZZLE HEAD ASSEMBLY Used on S N 78002064 up Reference Figure 20A Nozzle Spreader Ring Baffle Assembly Body Machine Screw S S P Flat 10 32 x 1 2 Machine Screw S S P Flat 10 32 x 7 8 Viton O Ring r v IM TF 30548 30546 30316 30326 1907 072 1907 112 91310 014 Figure 1 NO 7706 INSECTICIDE TANK ASSEMBLY Used on S N 78001 thru S N 7800810 Reference Figure 21 Description nsecticide Tank Filter Screen Filter Elbow Male Elbow 1 4 Tube x 1 4 Pipe 1 4 Nylon Ferrule Nut Male Elbow 3 8 Tube x 1 4 Pipe 3 8 Nylon Ferrule Nut 1 4 Nylon Pipe Plug Tank Cap Viton O Ring Note Not available individually Available assembled in 3 22 7590 7699 7873 90396 90400 905
33. ndle Black Fin Grip Metric Nut 5MM 0 8 Pitch Washer SAE No 10 Washer SAE 5 16 Cap Screw Hex 1 4 20 x 1 2 Cap Screw Hex 1 4 20 x 5 8 Cap Screw Hex 5 16 x 5 8 Cap Screw Hex 5 16 x 3 4 Nut Nylok Hex 1 4 20 Set Screw Socket Head 10 24 x 1 2 Lockwasher Split No 10 Lockwasher Split 5 16 Machine Screw P Pan 10 24 x 1 2 Machine Screw P Pan 10 24 x 7 8 Machine Screw Hex 10 24 x 5 8 Cap Screw Hex 1 4 20 x 1 1 2 Washer USS 1 4 N FPA PN OH BL d fn RB RA oM Figure 17 NO 7562 BEARING SUPPORT Reference Figure 17 Description Bearing Hub Bearing Support Disc Ball Bearing Retaining Ring 1680 071 Machine Screw P Pan Head 10 24 x 1 2 27 8I 545 NO 7581 BLOWER Reference Figure 18 7559 7560 7562 7565 7567 7568 7569 7571 7572 7573 7588 7599 7601 7606 7615 1109 001 1241 192 Fan Baffle Bearing Support See Page 27 for Parts Breakdown Back Plate Long Back Section Long Center Section Front Section Shaft Washer Spacer Back Disc Washer Short Back Section Short Center Section Tie Bolt Washer SAE No 10 Nut Hex Jam 5 8 18 vo tA BEM G G pa pa pa UN Ro IS Figure 9 NO 7618 NOZZLE HEAD ASSEMBLY Used on S N 78001 thru S N 7800909 Reference Figure 19 Description Nozzle for replacement order 8664 Nozzle show
34. ngine trouble Primer Pump Unless the metering chamber is filled with fuel fuel cannot be fed to the engine by suction pressure caused by pulling the recoil The primer pump is a manual pump to fill the metering chamber with fuel in advance for preparation for starting OPERATION Reference Figure 29 page 54 For S N 78001 thru S N 78001304 Starting Pump the primary pump to reduce pressure in the metering chamber by pulling up air from the chamber The diaphragm is pushed up by atmospheric pressure pushing the metering lever and opening the needle valve Fuel is pulled up from the tank and is fed into the metering chamber through the fuel pump inlet screen and needle valve Fuel is then fed between the end of the high speed fuel adjusting screw and body hole into the primary pump and into the peep window indicating green or green and red Pull the recoil to feed fuel from the peep window to the engine by engine s suction pressure for starting After starting fuel is fed from the metering chamber by suction pressure Idling Open the throttle valve a little to feed fuel between the end of the high speed fuel adjusting screw and the body hole into the engine after its volume is regulated between the nozzle pipe and the low speed needle The volume of air is regulated by the opening angle of the throttle valve OPERATION continued For S N 78001 thru S N 78001304 Partially opened According to the opening angle of the throttle
35. nts reference Figure 30 58 Standard adjustment of the H screw and the L screw are as follows From the fully closed position back the adjusting screw out 1 2 turn 1 4 turn Turn clockwise for a leaner mixture and counterclockwise for a richer mixture H screw Return by 1 1 2 1 4 turns from fully closed position clockwise for thinning and counterclockwise for thickening L screw Middle notch clockwise to lean and counterclockwise to rich 57 CHARACTERISTICS OF MAIN PARTS MAINTENANCE REQUIREMENTS CAUTIONS FOR DISASSEMBLY AND REASSEMBLY continued For S N 78001 thru S N 78001304 H Screw Peep window Idle adjust screw I Figure 30 3 Cautions for disassembly and reassembly Before reassembly clean these parts with compressed air or by shaking in clean fuel Do not wipe with fingers or cloth Do not use lock agent for threads B Diaphragm 1 Characteristics The diaphragm converts the difference between the engine s suction pressure and atmospheric pressure into vertical motion This motion controls the action of the needle valve through the metering lever and controls the fuel flow into the metering chamber The diaphragm is equivalent to a float in the float type carburetor The internal pressure in the metering chamber of a diaphragm carburetor is equivalent to the float level in a float type carburetor Any malfunction of the diaphragm causes engine trouble as any malfunction of
36. rom the blower The insecticide flows from the tank through the adjustable control valve to the specially designed LECO dispersing head where it is sheared into optimum size droplets by the air blast from the blower and is dispersed into the atmosphere After dispersal the droplets stay suspended in the air and penetrate the insect infested areas pace PES BA OS LE du M AVOID BREATHING SPRAY MIST RESPIRATOR SHOULD 7 BE OIN AT A IMS WHEN DISPERSING D THIS LECO AEROSOL GENERATOR IS MANUFACTURED AND SOLD FOR USE ONLY WITH INSECTICIDES WHICH HAVE BEEN APPROVED BY DEPARTMENTS THE 2 LOCAL GOVERNMENT DO NOT EXCEED THE DOSAGE lt INSECTICIDE TO BE USED USE OF UNAPPROVED INSECTICIDES ANDI R DOSAGES MAY BE HAZARDOUS 3 Carburetor Recoil Start Knob Stop Button Fuel Oil Mixture Tank Throttle aerar Tul TT GP ANT DAC ESKI ES MILU GAMME S ACH 7 MO 7100711 2 pp Figure 2 8 Control Valve Formulation Tank ENGINE SPECIFICATIONS S N 78001 thru S N 78001304 Engine Type Robin Two Cycle Fuel Tank 0 7 Liter Displacement 22 5 Spark Plug NGK BM7A 1 37 cu in Champion CJ4 CJ6 Carburetor Position Diaphragm Type 1 Lubrication Fuel Oil Mix between 15 and 20 1 for the first 20 hours Fuel Oil
37. sunk Screw Screw Trademark Label Model Label Needle Bearing 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 3 2 1 1 2 3 1 2 2 2 1 1 1 NO 91460 ENGINE Continued Used on S N 78001305 up Reference Figure 26 Qy Stop Button Screw Carburetor and Air Cleaner Assembly See Page 51 for Parts Breakdown Pan Head Screw 47 Figure 7 NO C8103 CARBURETOR Used on S N 78001 thru S N 78001304 Reference Figure 27 Carburetor Complete Metering Lever Spring Metering Lever Inlet Needle Valve Metering Lever Pin Metering Diaphragm Gasket Metering Diaphragm Assembly Metering Diaphragm Cover Cable Bracket ANA tn pa NO C8103 CARBURETOR Continued Used on S N 78001 thru S N 78001304 Reference Figure 27 Cable Adjuster Nut Cable Adjuster Screw Pump Gasket Pump Diaphragm Pump Plate Plate Gasket Pump Cover Assembly Pump Primer Primer Pump Bracket High Speed Needle Spring High Speed Needle Mounting Sleeve Wick Filter Intake Cap Gasket Wick Plate Intake Cap Mounting Sleeve Plate Cleaner Plate Filter Spring Air Filter Air Cleaner Cover Throttle Valve Assembly Retaining Ring Spring Washer Swivel Idle Screw Bracket Idle Adjuster Spring Idle Adjuster Screw Packing Spring Pump Cover Screw Screw Lm Q Lm
38. t require any further adjustment If the carburetor should require adjustment follow the instruction in the Carburetor Service Manual page 53 Carburetor S N 78001305 up Adjusting Idling RPM When the adjusting screw is turned right the engine RPM increases and when it is turned left RPM decreases See Figure 14 Normal Idling RPM 3100 100 rpm NOTE The carburetor greatly affects the operating conditions of the engine Since it has been adjusted carefully at the factory before shipment avoid adjusting it unless absolutely necessary If adjustments are needed contact your nearest engine dealer See Figure 14 16 ENGINE MAINTENANCE INSTRUCTIONS Periodic maintenance is vital to the safe and efficient operation of your engine Check the table below for periodic maintenance intervals The following chart is based on the normal engine operation schedule 8hours 50 hours 200 hours 500 hours 1000 hours daily weekly monthly Clean Engine and Check o daily Bolts and Nuts Clean Spark Plugs e e ERE Clean Air Cleaner NS MEAN E AMEN Clean Fuel Cock or Fuel Filter Clean and Adjust Spark Plug Gap Overhaul Engine if Necessary Preventive Maintenance Check List and Storage Tips Be sure the engine and all other parts are clean Check all nuts bolts screws etc making sure they are tightened and secured as they should be Inspect carefully for any fuel or oil leaks Check t
39. the float in a float carburetor causes engine troubles such as a change in RPM s In addition any malfunction of the metering lever valve spring and or needle valve also causes engine trouble 58 CHARACTERISTICS OF MAIN PARTS MAINTENANCE REQUIREMENTS CAUTIONS FOR DISASSEMBLY AND REASSEMBLY continued For S N 78001 thru S N 78001304 2 Maintenance requirements The diaphragm must not be damaged and the pressurized plate must not be loose or deformed replace defective diaphragm unit with a new one The diaphragm has a long life but do not damage or deform it when disassembling 3 Cautions for disassembly and reassembly Check the side and shape of the packing the diaphragm and the diaphragm cover before installing at each fixed position If deformed or damaged replace packing Install diaphragm and diaphragm gasket in the correct order Before reassembly clean the diaphragm with compressed air or by shaking it in clean fuel Do not wipe with fingers or cloth C Needle valve 1 Characteristics See characteristics of diaphragm page 58 2 Maintenance requirements Needle valve must operate smoothly 3 Cautions for disassembly and reassembly Do not damage the rubber part of the needle valve Always wash the valve by shaking it in clean fuel if wiped with cloth Also clean the valve seat with compressed air or by shaking it in fuel D Metering lever 1 Characteristics See characteristics of diaphragm page 58
40. tly Metering lever higher Adjust correctly Metering lever not set properly Set correctly Diaphragm deteriorated Replace Faulty idling Set RPM s lower Adjust correctly L screw system clogged Disassemble and clean Valve and screen stained or damaged Disassemble and clean or replace Throttle disc not set properly idling RPM s Set correctly not increased Metering lever height incorrect Adjust correctly Valve spring not set properly Set correctly TROUBLE SHOOTING CHECKLIST continued ROBIN CARBURETOR For S N 78001 thru S N 78001304 TROUBLE POSSIBLE CAUSE REMEDY RPM s not increased at H screw adjustment incorrect Adjust correctly all engine stop or hollow sound H screw system fucl passage main etc Disasscmble and clean clogged Metering lever height incorrect Adjust correctly Valve spring not set properly Set correctly Needle valve worn Replace Diaphragm deteriorated or damaged Replace Faulty starting Engine stops or Screen clogged Disassemble and clean or malfunctions but after replace restarting engine runs smoothly Fuel tank ventilation hole plugged Disassemble and clean Air vent clogged Disassemble and clean Too rich with H screw H screw worn or damaged Replace closed fully Faulty acceleration H L screws tightened Adjust H L screws Metering lever height incorrect Adjust correctly Diaphragm loose Retighten Leak from diaphragm gas
41. tor Base Flange Ring Handle Bar Blower See Page 29 for Parts Breakdown Support Bar Control Valve See Page 34 for Parts Breakdown Base Column Channel Bracket Handle Brace Nozzle Head Assembly Used on S N 78001 thru S N 7800909 See Page 30 for Parts Breakdown pa Nozzle Head Assembly Used on S N 7800910 thru S N 78002063 See Page 31 for Parts Breakdown Nozzle Head Assembly Used on S N 78002064 up See page 31A for Parts Breakdown Washer 11 32 x 1 1 8 x 1 8 Insecticide Tank Assembly Used on S N 7800811 thru S N 78001936 See Page 33 for Parts Breakdown Insecticide Tank Assembly Used on S N 78001937 up See Page 33A for Parts Breakdown Bracket Vibration Mount Male Elbow 1 4 Tube x 1 4 Pipe 1 4 Nylon Ferrule Nut Two Cycle Engine Used on S N 7800811 thru S N 78001304 See Page 41 for Parts Breakdown Two Cycle Engine Used on S N 78001305 up See Page 45 for Parts Breakdown t2 CA COMPLETE UNIT Continued S N 7800811 up Reference Figure 16 91202 91203 91204 91205 91206 91208 91209 91228 1109 001 1112 001 1200 071 1200 091 1201 091 1201 101 1248 131 1278 071 1340 010 1340 014 1680 071 1680 111 2278 091 1200 161 1111 004 Throttle Lever Assembly Throttle Wire Shoulder Strap Metric Cap Screw Socket Head SMM x 0 8 Pitch x 24MM Long Metric Cap Screw Socket Head 6MM x 1 0 Pitch x 120MM Long Tapered Ha
42. ts Breakdown a ee 19 Air Cleaner Assembly S N 78001305 51 Bearing S pport Me EA AA AA 27 Blower oe e ya ose UR SUB Sold ac YO oe 29 Carburetor S N 78001 thru 78001304 rne 48 Carburetor S N 78001305 up 51 Complete Unit S N 78001 thru S N 7800810 21 Complete Unit S N 7800811 _up 25 Control Valve ewm eoe Di exe as Sakae 34 Engine S N 78001 thru S N 780020 37 Engine S N 780021 thru S N 78001304 41 Engine S N 28001305 Up oe exo a a a 45 nsecticide Tank Assembiy S N 78001 7800810 32 Insecticide Tank Assembly S N 7800811 S N 78001936 33 Insecticide Tank Assembly S N 78001937 up 33A Nozzle Head Assembly S N 78001 thru S N 7800909 30 Nozzle Head Assembly S N 7800910 thru S N 78002063 31 Nozzle Head Assembly S N 78002064 31A Inder ow e he e a Ea a Ode e cete da SU MS ade 71 Insecticide System 4
43. ts Breakdown Throttle Lever Assembly Throttle Wire Shoulder Strap Metric Cap Screw Socket Head SMM x 0 8 Pitch x 24MM Long Metric Cap Screw Socket Head 6MM x 1 0 Pitch x 120MM Long Tapered Handle Black Fin Grip Metric Nut 5MM x 0 8 Pitch Washer SAE No 10 21 amp p pr 6710 010 6712 008 7566 7570 7574 7581 7582 7602 7607 7608 7609 7610 7618 7619 7706 7724 7850 91203 91204 91205 91206 91208 91209 91228 1109 001 COMPLETE UNIT Continued S N 78001 thru S N 7800810 Reference Figure 15 1112 001 Washer SAE 5 16 1200 071 Cap Screw Hex 1 4 20 x 1 2 1200 091 Cap Screw Hex 1 4 20 5 8 1201 091 Cap Screw Hex 5 16 18 x 5 8 1201 101 Cap Screw Hex 5 16 18 x 3 4 1248 131 Nut Nylok Hex 1 4 20 1278 01 Set Screw Socket Head 10 24 1 2 1340 010 Lockwasher Split No 10 1340 014 Lockwasher Split 5 16 1680 071 Machine Screw P Pan 10 24 x 1 2 1680 111 Machine Screw P Pan 10 24 x 7 8 2278 091 Machine Screw Hex 10 24 x 5 8 BA BN toO BE SURE TO ORDER REPLACEMENT PARTS BY PART NUMBER AND SERIAL NUMBER OF YOUR UNIT 23 Figure 16 24 COMPLETE UNIT S N 7800811 up Reference Figure 16 6710 017 Nylon Tube 1 4 OD x 17 Inches 6712 008 Nylon Tube 3 8 OD x 8 Inches Used on S N 78001 thru S N 78001936 31071 Drop Pipe and Filter Component of 31072 Assembly Item 15 Used on S N 78001937 up Adap
44. which can have an adverse effect on the life of the engine i I 11 ENGINE STARTING PROCEDURE S N 78001305 up Fully open fast Fully closed idle Figure 8 1 Put the throttle in fully closed idle position See Figure 8 Figure 9 2 Push the primer button to feed the fuel to the carburetor until fuel overflows from the carburetor See Figure 9 Figure 10 3 Close the choke lever If the engine is warm or the ambient temperature is high close the choke lever half way or keep it open fully If the engine is cold or the ambient temperature is low close the choke lever See Figure 10 ENG NE STARTING PROCEDURE continued S N 78001305 up Figure 11 4 Pull the recoil start briskiy See Figure 11 CAUTION Gradually return handle Do not let it snap back Pull the rope in the direction of the starter rotation Do not pull the starter rope all the way out of the drum Figure 12 5 After starting the engine gradually open choke by turning the choke lever and finally keep it open fully See Figure 12 Do not fully open the choke lever immediately when the engine is cold or the ambient temperature is low because the engine may stop 6 Letthe engine warm up by running it at a low RPM slow speed for approximately one or two minutes CAUTION 22 NEVER OPERATE THE ENGINE AT HIGH RPM WITHOUT LOAD With throttle fully opened and no load the engine rpm will be very high which ca
Download Pdf Manuals
Related Search