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Makita ER2650LH grass trimmer

1. Clearance between Flywheel and 3 Assemble Cylinder cover to Engine e coil 0 3mm gt Repair 4 DISASSEMBLY ASSEMBLY 4 8 Flywheel DISASSEMBLING Remove M8 Flange nut and pull out Fly wheel with 1R364 Fig 20 Fig 20 1 Remove M8 Flange nut by turning it counterclockwise using Cordless impact driver with 13mm Socket bit Note e M8 Flange nut can be loosen easily with Impact driver without locking Piston e Do not remove Spark plug because compressed air resistance in Cylinder is used for Piston locking e Remove Plug cap to prevent accidental engine start gt CSA Sw 89 ZNR aS A NO e KAS A ZS TA ae FA MSE ONS EZ p X uy A EE 0 2 u EA BZ y EEE e ANE Ud ASSEMBLING P 8 14 Set 1R364 by screwing a set of M6 bolts to Flywheel equally and pull out Flywheel from Crankshaft by turning center bolt of 1R364 clockwise Center bolt 89 IN D _ Q P ONE OT N Ss 6x R364 Sy eM N S IES gt N 6 LF a set of M6 bolts components of 1R364 Assemble Flywheel to Crankshaft by following the procedure in Fig 21 Fig 21 Insert Woodruff key 3 in the groove on Crankshaft and mount Flywheel then tighten Flywheel with M8 Flange nut clockwise Note Wipe off grease and oil on Crankshaft to fit Flywheel tightly Crankshaft WAY Key groove of Flywheel s hole A Woodruff key 3 ry gt P 9 14 gt Repair 4 DISASSEM
2. diaphragm Fig 25 1 Remove 3x24 Tapping screws 4pcs and Primer 3 Disassemble Controller set by removing pump cover then Diaphragm gasket set a M3x4 screw from Pump body assembly Note Carefully remove Metering diaphragm when Note Check the tip of Inlet needle if it is worn the Gasket sticks to it as it s fragile or deformed before assembling 2 Replace Metering diaphragm when it is 4 Make sure if Spring is set on the projection e slackened hardened worn debased of Control lever when they are assembled ee S22 Se a ec M3x8 Pan head screw L Control lever Spring washer 9 z Swivel olje CCCL apea Washer a 7 Inlet needle Pump body ar ae M3x4 screw Stop ring 11 Do Note is included A E 3 i These items can i 7 not be supplied i separately pris Da Throttle valve Order Pump body poragm assembly E t lace th gasket O rep ace em Metering g 4 diaphragm 7 Conical 7 Air purge bod compression i dii spring 5 9 a O ring 2 l Ge Wane 3x24 Tapping screw 4pcs Eee nn a a a a ee a a a ee ee ee 5 Loosen Idling screw fully first then remove M3x8 P H screws 2pcs Dust in Pump 6 Check and clean Inlet screen before fitting body causes 7 Spray Carburetor cleaner each inlet openings and the leakage of Y pressure NET leave it for a minutes then wash them with gasoline be See Se es Se e
3. a SW Spring lock washer W Washer MEC MEC process process of locking agent on screws
4. 1 Remove Plug cap from Spark plug and test the continuity between Plug cap spring in Plug cap and Earth terminal of Ignition coil It is in order when Tester shows 2 0kQ 0 5kQ Fig 15 2 In case of no continuity or unstable continuity check the connection between Plug cap spring and Ignition coil as follows A Spray the lubricant in Plug cap then pull out Plug cap spring together with Ignition cable using Long nose pliers Fig 16 B In case no connection or inconsistent connection check the condition of Plug cap and spring Reassemble them or replace them if they are disorder C Insert the end of Plug cap spring into Ignition cable then return them back to the inside of Plug cap carefully so as not to be disconnected D Check Plug cap and spring again according to the step of 1 to avoid poor connection causing the poor sparks of Spark plug CHECKING SPARK PLUG 1 Remove Plug cap with Plug cap spring then remove Spark plug with Box driver 15 17 standard equipment Fig 17 Note If the electrodes are wet with Fuel wipe it away with a cloth and dry it by air blow 2 Clean carbon deposits on Electrodes on Insulator tip with a wire brush 3 Do fine adjustment of a gap between Side electrode and Center electrode of Spark plug by inserting 0 7mm Feeler gauge of 1R366 Fig 17 4 Mount Plug cap with Plug cap spring on Plug terminal and connect 0 7 l 7 mm Feeler Screw part of Plug to a metal part of Engine then pull
5. Adjust the valve clearance by following the steps in Fig 35 Fig 35 1 Align the markings on Ignition coil 3 Assemble Cam lifter 2pcs Rod 2 5 2pcs and Rocker arm assembly and Flywheel 2pcs to Cylinder block assembly 2 Align the markings on Cam gear Note Put the ends of Rod 2 5 2pcs on the round depression of assembly and Cylinder block Cam lifter and Rocker arm while holding Rocker arm 4 Loosen the adjust screw of Rocker arm with Hex wrench 2 5 and Offset wrench and put 0 1mm Feeler gauge 1R366 between valves and Rocker arms then adjust the valve clearance Tighten the nuts of Rocker arm assembly and remove 0 1mm feeler gauge 1R366 5 The clearance is in order if 0 15mm Feeler gauge can not be inserted between valves and Rocker arms Marking on Ignition coil 1R366 Hex wrench 2 5 0 1mm Feeler gauge y ER Marking Marking on on Cam gear Cylinder block gt assembly Offset wrench 4 Take the reverse step of disassembly for Engine block 4 15 Fastening torque Tighten all parts to designated fastening torques below nena Parts to fasten Screw Nut CRANK CASE ad OIL CASE HEX SOCKET HEAD BOLT MS 60 CAM GEAR COVER and CYLINDER BLOCK _ HEXSOCKETHEADBOLTMS 16 ROCKER ARMADIUSTINGSCREW and NUT NUTS O O OOOO S o ROCKER COVER OUTER and CYLINDER BLOCK HEX SOCKET HEAD BOLT S16 w CLUTCH and FLYWHEEL fasone O O o MUFFLER and CYLINDER BLOCK HEX SOCKET HEAD BOLT Mea wih W MEG s0 poyma O eooo
6. BLY ASSEMBLY 4 9 Recoil starter DISASSEMBLING Remove Recoil starter assembly from Engine unit and disassemble it Fig 22 Fig 22 1 Remove Recoil starter assembly from Engine unit Then 2 Remove M5x12 Tapping screw and Swing arm pull out and cut Starter rope if it is still wound on Reel Collar and Reel from Starter case In case the Starter rope can not be cut pull it for a length Note Be careful if Spiral spring jumps out of one round of Reel and hook it in the U notch 3 Loosen rope knots in the Starter knob and then turn the Reel clockwise until Spiral spring is loosened Reel then remove the rope M5x12 Tapping U notch of Reel screw Set screw Starter knob Tapping screw Set screw Starter case ASSEMBLING Set Spiral spring in Reel if it is out of Reel and assemble Recoil starter assembly then wind Starter rope by using recoil force of Spiral spring Fig 23 1 First set Outer hooked end of Spiral spring in Reel and wind it 3 Pass a new Starter rope through Starter case clockwise toward center of Reel Set Inner hooked end of and Knob then make knots at both ends Spiral spring on the rib inside of Reel 2 Apply Makita grease N No 2 a little to the entire Spiral spring Approx 10mm Outer hooked end Starter knob of Spiral spring Starter case A Inner hooked end of Spiral spring Reel ya Approx 10mm X 5 Mount Collar to Reel and pass Hook the rope in the notch of Reel
7. Inner cable in the groove of Swivel on Carburetor and fix Control cable in the Cable holder of Insulator by tightening Nuts of Control cable Note Adjust the tension of the cable to allow the play 1mm to 2mm Tip end of Inner cable to be hooked on Swivel Insulator Adjust screw i N Inner cable Nom P Nuts to fix in Cable holder of Insulator Control cable P 4 14 gt Repair 4 DISASSEMBLY ASSEMBLY 4 3 Shaft pipe complete DISASSEMBLING 1 Loosen two M5x25 Hex socket head bolts and remove Clamp cover B and Loop handle Fig 7 2 Remove 4x18 Tapping screws 4pcs and M5x14 Hex socket head bolts then separate Lever case R and L Fig 8 Fig 7 Fig 8 M5x25 Hex socket head bolt 2pcs g Ma X Shaft pipe aN 7 complete M5x14 Hex socket head bolt 2pcs q 4x18 Tapping screw Clamp cover B 4pcs 3 Disassemble Shaft pipe complete by following the disassembly step of the chapter 4 2 4 Pull out a shaft from Shaft pipe complete ASSEMBLING Take the disassembling step in reverse 4 DISASSEMBLY ASSEMBLY 4 4 Head case complete DISASSEMBLING 1 Disassemble Protector and Head case complete Fig 9 Fig 9 1 Disassemble Protector by removing 3 Loosen M5x25 Hex socket head bolt Hex bolt 2pcs and Hex socket bolt 1pc and remove Head case complete 2 Insert 1R308 in a hole on Cutter holder to lock shaft and remove Cutter assembly by turning it clockwise Shaft pi
8. Starter rope slowly gauge of 1R366 The sparks can be seen when starter rope is pulled 5 When the sparks can not be seen follow the procedure of CHECKING PLUG CAP to test the continuity If it has yet to be solved replace Plug and recheck the ignition through the above process DISASSEMBLING OF IGNITION COIL Fig 18 1 Remove Cylinder cover and cable from Ignition coil terminal M4x20 Hex socket Spacer 2pcs 2 Loosen M4x20 Hex socket head bolts 2pcs and remove head bolt 2pcs Ignition coil from Engine Fig 18 Note Do not lose Spacers for heat insulation 2pcs on the bolts Ke aN l Tab of Ignition coil to connect with Cable IN ry AR p ASSEMBLING OF IGNITION COIL 1 Insert 0 3mm Feeler gauge of 1R366 in between the magnet portion of Flywheel and Ignition coil Tighten M4x20 Hex socket head bolts 2pcs while keeping Ignition coil attached to Flywheel through 0 3mm thickness gauge Note Two M4x20 Hex socket head bolts Fig 19 are with threadlocker Therefore when re using them apply ThreeBond 1342 or Loctite 242 to the threads 2 After setting Ignition coil remove the thickness gauge then turn Flywheel by hand to check if it turns smoothly without being stuck Note Be sure to insert Spacer on M4x20 Hex socket head bolt when fastening Ignition coil to Engine Fig 18 Fig 19
9. Taa kita A A A A PRODUCT P 1 14 ECHNICAL INFORMATION gt ER2650LH gt Petrol String Trimmer CONCEPT AND MAIN APPLICATIONS Model ER2650LH 1s a petrol string trimmer equipped with 25 4cm 4 stroke engine in compliance with all known exhaust emission regulations p Specification Model Type Displacement cm cu in Fuel Max output kW PS Max torque N m at max output power Speed min spm at no load with nylon cutting head nylon cord diameter mm EH026 4 stroke 25 4 1 5 Straight unleaded gasoline 0 77 1 1 1 1 at 5 500 min 7 000 10 000 7 900 2 4 SAE10W 30 oil in the Class SF or higher of API classification Diaphragm Recoil starter with mechanical decompression 0 6 20 3 Yes Yes M8 x 1 25 Right handed 412 16 1 4 Loop handle No 1 4 8 10 1 However equipped with mechanical decompression 2 without guard cutting tool gt Standard equipment Nylon cutting head oo ecccceeeeeeeeeeeens Socket wrench for 10 16 oo ccccceees Hex wrench 4 rs ctesserseiciaccectestunasacesantoesasecasereks PNA a E Accessory DAR pentartasevecessescestenensstnntaSdecotnesteess Oil set oil bottle containing 80mL engine oil Note The standard equipment for the tool shown may vary by country pie Optional accessories Nylon cutting heads Bump amp feed 4 Ultra Auto 4 P 2 14 gt Repair CAUTION Repair the machine in accordance with Instruction ma
10. ing e Use Impact driver if bolts and screws can not be loosen e Tighten the bolts and the screws to the specific torque as listed in Fig 59 e Check the movement and sound of the main parts by manually turning each part once assembled e Check the assembled parts by manually turning them if there is any faulty or unusual gap P 3 14 gt Repair 4 DISASSEMBLY ASSEMBLY 4 2 Engine and Shaft DISASSEMBLING 1 Disconnect lead wire and grounding wire by removing each connector after Air cleaner cover is removed Fig 1 2 Remove Control cable from Insulator by loosening nuts of the adjust screw and disconnecting inner cable from Swivel of Carburetor Fig 2 Fig 1 Fig 2 Inner cable Swivel of Control Adjust screw of DS gt Control cable Cann CXS sean Nuts of Control A a D a holder of YPu Insulator Connector 4pcs 3 Loosen two M5x18 Hex socket head bolts on Pipe holder and remove M5x12 Hex socket head bolt Fig 3 4 Pull out Shaft pipe complete from Engine Pipe holder Fig 4 Note Cover cloth on a shaft and pull out it by grasping it with Waterpump pliers in case the shaft is stuck at the spline engagement Fig 5 Fig 3 Fig 4 M5x13 Hex i socket head bolt Shaft pipe Shaft Ts ee Pipe holder Shaft pipe complete Fig 5 ASSEMBLING Take the reverse step of disassembly Set Control cable in place Fig 2 Fig 6 Fig 6 Hook the tip end of
11. l from Engine as much as possible to minimize oil spill out of Cylinder block when opened 2 Disassemble Engine and open Cylinder block Fig 32 3 Disassemble Piston Fig 32 Fig 32 1 Remove the following parts from Engine e Cylinder cover e Tank guard Fuel tank Clutch case e Recoil starter assembly Clutch Ignition coil e Flywheel e Rocker cover inner Rocker cover gasket Rod 2 5 e Rocker arm assembly Cam lifter e Cam gear Insulator eAir cleaner Carburetor Muffler e Spark plug 2 Open Cylinder block by removing M5x16 Hex socket head bolts 6pcs Cylinder block 3 Remove Clip from Piston with an awl Note e Be careful if the clip pops out e Replace the used clip to the new one once it is removed 4 Push Piston pin out with 1R171 and remove Piston Piston pin P 13 14 gt Repair 4 DISASSEMBLY ASSEMBLY 4 14 Engine block cont ASSEMBLING 1 Assemble Piston to Rod of Crankshaft Fig 33 Fig 33 1 Insert Piston pin through Piston and Rod of Crankshaft and fix it with Clip by using an awl Note Apply Makita grease N No 2 a little to Needle bearing in Rod of Crankshaft e Piston 1s bilateral symmetry and can be fixed in either direction e Clip gap can be located at any position 2 Install all piston rings at designated position and direction as followings e Ring gaps of Piston ring top 34 and Piston ring second 34 are positioned at 180 angle points agai
12. nst each other e Ring gaps of two layers of Piston ring 34 Oil ring are positioned at 120 angle points against each point Note Do not expand Piston rings too much as they are easy to break Piston ring top 34 Two ring gaps are positioned at 180 3 angle points against each other Piston ring second 34 Two ring gaps are positioned at 120 angle points against each other Piston ring 34 Piston top end Oil ring Piston ring top 34 Center rised shape Top layer l l A Piston ring second 34 Middle layer Wide based shape Piston Bottom layer Piston ring 34 Oil ring consists of three layers _ _ Note Ring gaps should not be Cross section of Piston overlapped each other 2 Assemble Cylinder block assembly by fastening it with screws in crisscross pattern Fig 34 Fig 34 1 Degrease the matching surface of Cylinder block and Crank case and apply ThreeBond 1215 on the Crank case side Note The layer of ThreeBond 1215 has to be thin so as not to enter into the oil route in Engine and get clogged 2 Apply 4 stroke oil to the contact surface of Piston and Cylinder And then install the assembled part of Piston into Cylinder block while holding Piston rings 3 Fasten Cylinder block assembly with screws in crisscross pattern The matching surface indicated with black lines P 14 14 p Repair 4 DISASSEMBLY ASSEMBLY 4 14 Engine block cont ASSEMBLY 3
13. nual or Safety instructions 1 NECESSARY REPAIRING TOOLS Use fo removing assembling Retaining rings S 12 and S 24 diagnosing Carburetor removing assembling M5 Hex socket head bolt removing Clutch drum and Ball bearing 6001LLU press fitting Clutch drum holding Cutter holder removing Flywheel Adjusting Ignition coil Spark plug and Rocker arm assembly Hexsocketbit13 0 removing assembling Flywheel Wire brush Senine Spark pl 2 GASKET 1 Replace the removed gasket with the new one 2 Clean the matching surface where the gasket is placed to maintain its sealing performance 3 LUBRICANT ADHESIVE APPLICATION 1 Apply Makita grease N No 2 to Spiral spring in Recoil starter and the spline ends of Shaft 2 Apply Liquid gasket ThreeBond 1215 to the matching surface of Crank case and Cylinder block when assembled Fig 55 4 DISASSEMBLY ASSEMBLY 4 1 Attention Follow the instructions below during repairing e Wear glove to avoid injury e Cool down the engine enough before repairing to avoid skin burn e Remove the remaining fuel in Tank and Carburetor completely Note No open flames in the workshop e Repair the tool on the stable workbench and keep dust out e Record where and how the parts are assembled to avoid mis assembling And assort and keep the disassembled parts in the box by section e Treat the disassembled parts carefully Be sure to clean and wash parts before assembl
14. pe complete Shaft pipe Protector Hexsocker M5x25 complete Hex socket eas head bolt Head case complete Hex bolt Cutter assembly Cutter holder P 5 14 gt Repair 4 DISASSEMBLY ASSEMBLY 4 4 Head case complete cont DISASSEMBLING 2 Disaasemble Cutter shaft and Ball bearings from Head case complete Fig 10 Fig 10 1 Make Hex wrench 5 square shape by grinding its two diagonal edges 2 Fix Head case with vise and lock Cutter and insert it into the square hole of Cutter shaft holder with 1R308 Then turn Wrench 5 counterclockwise and disassemble Head case complete Cutter holder NN Head case complete 1R308 Hex wrench 5 J A YY ka X N NG EY ia Square hole of Cr Cutter shaft A A _ Hex wrench 5 Hex wrench 5 Grind these edges 3 Remove Cutter shaft with Arbor press Arbor press And then remove Ball bearing 608DDW by using 1R286 Head case complete Ball bearing 608DDW ASSEMBLING 1 Take reverse step of the disassembly Fig 10 11 Note Pay attention to the assembly direction of Washer and Bearing washer e Shaft end can be fitted into the square hole of Cutter shaft by twisting it with pliers to match their angles without disassembling Head case Fig 11 Ball bearing Cutter holder Washer Head case 608DDW Cutter shaft Bearing washer TO pte Spring washer M8 M5x25 Collar Ball bearing Hex socket 608ZZ head bolt p Repai
15. r 4 DISASSEMBLY ASSEMBLY 4 5 Clutch DISASSEMBLING Disassemble Clutch by removing Shoulder hex bolt M6x25 2pcs with Cordless impact driver using 13mm Socket bit Fig 12 Fig 12 Note e Clutch is removed with Cordless impact driver without locking Piston e Do not remove Spark plug because compressed air resistance in Cylinder is used for Piston locking e Remove Plug cap to prevent accidental engine start ASSEMBLING Assemble Clutch by following steps in Fig 13 Fig 13 1 Marking L on Clutch must face up 2 Place Washer 8 at described direction 4 6 Clutch drum DISASSEMBLING 1 Remove Clutch case section from the engine by unscrewing H S H bolt M5x8 3pcs 2 Remove Retaining ring S 12 with 1R004 from Clutch drum in the Clutch case 3 Remove Clutch drum from Clutch case section using 1R247 and Arbor press Fig 14 ASSEMBLING 1 Put Clutch case on the table of Arbor press vertically and then press fit Clutch drum into Ball bearing 6201LLU with 1R286 and Arbor press Fig 15 2 Set Retaining ring S 12 in place with 1R004 13mm Socket bit S s M6x25 2pcs Shoulder hex bolt Sain 3 Tighten Shoulder hex bolt M6x25 by hand 4 Set 13mm Socket bit to Cordless impact driver and tighten Shoulder hex bolts Fig 14 Fig 15 P 6 14 P 7 14 Repair 4 DISASSEMBLY ASSEMBLY Fig 15 4 7 Ignition Plug cap CHECKING PLUG CAP
16. s es ee ee ees ee es es Ss ee Ses ee ee P 11 14 gt Repair 4 DISASSEMBLY ASSEMBLY 4 10 Carburetor cont ASSEMBLING AA Nipple to connect yellow tube of Tank Carefully assemble each part in right direction and order Fig 25 AIRTIGHT TEST Connect 1R127 to the nipple of Carburetor as drawn in Fig 26 Give air pressure from 1R127 and check if the pressure gauge indicates l l Nipple of Carburetor to connect 0 05Mpa for around 10 seconds then there is no problem with Carburetor black tube of Tank ASSEMBLY TO ENGINE 1 Assemble Cleaner plate assembly Carburetor and Gasket to Insulator with two M5x60 Hex socket head bolts 2 Connect tubes black amp yellow of Fuel tank to the nipple of Carburetor then connect Pipe from Cylinder and Breather pipe to Cleaner plate Fig 27 3 Set Air cleaner elements sponge at cover side amp felt at engine side in Cleaner plate and fix Cleaner cover assembly Fig 27 Fig 27 1 Connect two tubes black amp yellow of Fuel tank to 2 Set Air cleaner elements sponge at cover side the nipple of Carburetor then connect Breather pipe and amp felt at engine side in Cleaner plate and fix Pipe from Cylinder to Cleaner plate assembly Cleaner cover by fitting two interlocking tabs Note Make sure two tubes do not interfere with Cylinder cover and slots Tabs of Cleaner plate assembly J Sie N K ae i IP f GA AA Ni A GON Cleaner cover assembl
17. the arm of Swing arm in the slot and turn Reel counterclockwise by of Reel then fix them to the Reel using the rope as handle The rope with M5x12 Tapping screw is wound by recoil force of Spiral Note Repeat the step 4 to 5 in case spring when it is released from the movement of Reel is not the notch Repeat the step till smooth after the screw is tightened the rope is wound up completely notch of Reel 4 Wind the rope with Reel for 2 to 3 turns and fix Reel in Starter case while turning it left to fit the inner hooked end of Spiral spring in the slot on Starter case Note Reel should be fixed without force i ad Sisvor Swing arm M5x12 Pra T ay Reel to hook Collar Tapping screw of Spiral spring Set screw ae Swing WAN ot on Starter case Ge N Damper A WA spring P 10 14 gt Repair 4 DISASSEMBLY ASSEMBLY 4 10 Carburetor Fig 24 DISASSEMBLING 1 Remove Air cleaner cover 2 Remove Air cleaner elements 1 Remove Air cleaner cover and Air cl Cleaner a ee ee disassemble Air cleaner Fig 24 a eet felt Airceaner 2 Remove H S button head bolt M5x60 2pcs LL ADA element completely then disassemble Carburetor and AE Wen sponge Cleaner plate assembly from Insulator es i 3 Disconnect two tubes from Carburetor CLEANING MAINTENANCE 1 Do regularly Carburetor cleaning and maintenance by following the procedure in Fig 25 Primer pump
18. y Fuel tank Yellow tube 4 11 Stop switch CHECKING STOP SWITCH Check the continuity of two Lead wires ends routed from Control lever with Tester Fig 28 Stop switch is in order if it works as following e Tester shows no connectivity when Engine ON e Tester shows a connectivity when Engine OFF Fig 28 4 12 Fuel tube FUEL TUBE ASSEMBLY 1 Assemble Tube complete black tube amp yellow tube through grommet to Fuel tank Fig 29 2 Assemble Gasoline filter and Hose clamp to the black tube then put them into Fuel tank Fig 30 Fig 29 Fig 30 black tube yellow tube 7 Black tube Gasoline filter Hose clamp grommet P 12 14 gt Repair 4 DISASSEMBLY ASSEMBLY 4 13 Spark arrester MAINTENANCE 1 Remove Cylinder cover Fig 31 2 Remove Exhaust Muffler 3 Remove Spark arrester from Exhaust muffler and Exhaust muffler Spark arrester sweep it if dirt or soot is on Spark arrester Fig 31 Replace it with a new one if spark arrester has a breakage or fray 4 Assemble Spark arrester to Exhaust muffler 5 Fix Exhaust muffler in place Note Do not forget to put Muffler gasket e Two M5x40 Hex socket head bolts for fixing Exhaust muffler are threadlocker type Apply ThreeBond 1342 Loctite 242 to the threads of Bolts once removed for repair 6 Set Cylinder cover in place 4 14 Engine block DISASSEMBLY 1 Drain the oi

Makita ER2650LH grass trimmer

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