Portable 4-Stage Fire Pump
Contents
1. 6 Slide impeller 22 onto shaft and engage with seal 7 Place O ring 24 in groove of distributor 23 It is important to smear the new O rings TOOL KIT FOR PUMP END with a suitable lubricant This will facilitate the assembly Ref Part Description Qty A 2356 Maintenance tools for 25 16 pump end includes all parts listed below 1 1 A 1884 Pressing sleeve for distributor 1 2 A 4329 Seal pressing sleeve 1 3 A 4097 Shaft protector 1 4 A 7644 Seal puller for 12 28NS 1 5 A 1888 Suction cover puller 1 6 A 1890 Pressing pin for shaft removal 1 7 A 1886 Pressing pin for distributor removal 1 8 R 904L Wrench for lock nut 1 9 A 1887 Shaft installation aligning guide 1 10 A 5297 Pump support tool 1 07 2011 07 2011 www wildfire env com e 1 800 426 5207 PUMP END Ref Part Description Qty A 17 12 50 Locknut stainless steel 1 18 12 49 Lock washer 1 Stainless steel 19 12 11 Impeller 1 20 12 9 Distributor 2 21 12 27 O ring 2 22 12 7 Impeller 3 23 12 6 Distributor 1 24 12 26 O ring 1 25 12 48 Double row ball 1 bearing 26 12 3 Retaining ring 1 for bearing 27 12 25 Mach screw 6 Stainless steel nylon insert 28 12 2C Shaft and collar 1 assembly 4 stage 29 12 17 Coupling buffer 1 12 2D Shaft sub assembly 4 stage with impellers incl parts with and 7 items 12 2E Shaft sub assembly 4 stage incl parts with 3 items2. Key 1 4 sq 1 stainless steel 6 PART 2 Driving pulley 1 7 PART 1 Timing belt 1 8 PART 3 Driven pulley 1 9 PART 5 Bushing 3 4 shaft 1 incl 3 screws 3 lock washers and set screw 10 FAST 2 Bolt drive hub 4 assembly 11 FAST 501 Lock washer 6 12 FAST 1 Bolt drive cover 6 assembly 13 PART 8 Retaining ring ext 1 14 PART 9 Retaining ring int 1 15 PART 10 Bearing drive hub 2 16 A 6956 Spacer drive hub 1 17 C 6955 Drive hub body 1 18 PART 6 Key 3 16 sq 1 stainless steel 19 A 7239 Shaft assembly 1 drive hub WATERAX veg C 7720 Complete speed increaser assembly Disassembly Procedure for Drive Assembly 1 poet 5 6 7 8 9 www wildfire env com e 1 800 426 5207 Remove pump end Remove bolts 12 lockwashers 11 and carefully pull drive front cover off Remove belt and check if worn Remove crankshaft bushing screws and reinstall in threaded holes Tighten equally until the sprocket and the bushing separate Repeat this procedure with the pump drive shaft bushing Remove bushing set screws to free the keys Remove bolts 10 and lockwashers 2 to separate drive hub Remove retaining ring 13 and press out the shaft assembly 19 Remove retaining ring 14 and slide out the bearings and spacer 15 and 16 Remove screws 3 and lock washers 2 to pull out back cover Reassembly Procedure Oo ee 10 11 12 13 14 15 N Insert bearings and spacer
3. WATERAX ess BB 4 Portable 4 Stage Fire Pump Instruction amp Service Manual BB 4 Service Manual www wildfire env com 1 800 426 5207 TABLE OF CONTENTS General Information Page SPECIFICATIONS 2 DIRECTIONAL REFERENCES AND IMPORTANT INSTRUCTIONS 3 Operating Instruction STARTER 3 PUMP UNIT 4 COLD WEATHER AND STORAGE 5 ENGINE TROUBLESHOOTING CHART 6 PUMP TESTING PROCEDURE 7 GOVERNOR SYSTEM 7 Regular Maintenance MAINTENANCE CHECK LIST AND ENGINE MAINTENANCE a Pump End Overhaul Service Procedure PUMP END 9 DRIVE ASSEMBLY 11 Engine Overhaul Service Procedure AIR FILTER SPARK PLUG AND ALTERNATOR gt gt n ELECTRIC STARTER CARBURETOR 13 VALVES 14 OIL PUMP 15 PISTON RINGS ROD AND CRANKSHAFT 16 Miscellaneous TORQUE VALVES AND CLEARANCE LIMITS 7 WARRANTY CERTIFICATE 18 WATERAX veg 07 2011 07 2011 www wildfire env com 1 800 426 5207 BB 4 Service Manual GENERAL INFORMATION SPECIFICATIONS WARNING CAUTION Always use proper unleaded gasoline with a pump octane rating of 86 or higher BB 4 VG 23 Complete unit This handbook includes specifications performance data operating instructions normal servicing information and the parts list for the BB 4 centrifugal fire pump The Wildfire model BB 4 portable fire pump is an ideal unit for high volume remote watering brush truck and slip on fire fighting systems in fores
4. IMPORTANT The pump bearing should be greased after every 8 hours of operation The grease should be pumped slowly into bearing chamber until fresh grease appears around bearing retaining ring Use only water repellent ball bearing grease preferably grease that has a rust inhibitor DO NOT use graphite grease or a pressurized grease gun 10 11 12 13 17 18 19 20 21 22 BB 4 Service Manual With open end of pump body in vertical position carefully lower distributor 423 until it rests on bottom of body Slide impeller 422 into position aligning with shaft Place O ring 21 in groove of distributor 20 Place distributor on open end of body then using bench press and assembly tool A 1884 apply several light downward strokes of press ram until distributor drops into body Distributor must then be positioned by hand as before Slide impeller 22 into position aligning with the other impeller Repeat operations 10 and 11 for remaining distributor 14 15 16 Slide impeller 19 into position aligning with previous impeller Place lockwasher 18 on shaft with locating tab in milled groove Screw locknut 17 onto shaft When tightening the nut do not use excessive force as this may result in failure of the seals or impellers Do not forget to secure the shaft from rotating Bend lockwasher up onto one flat of the hexagon locknut at a position approximately 180 from the mille
5. SERVICE PROCEDURE A dirty air filter restricts airflow to the carburetor causing the engine to run irregularly and lose power due to an over rich mixture entering the carburetor Therefore whenever the filter becomes dirty or whenever any of the above conditions occur remove the filter element as ak mt 5 COVER follows UREN 1 Remove the knob and plate Remove the filters and separate them Carefully check the foam and paper filters for holes or tears and replace if damaged 2 Tap the paper filter lightly on a hard service to remove excess dirt or blow compressed air lightly through the filter from the inside out Never try to brush the dirt off brushing will force dirt into fibers 3 Replace filter elements if damaged or cannot be cleaned thoroughly FOAM PRE CLEANER UN 4 Reinstall the filters and the plate ensuring the seal is properly set 5 Reinstall the cover ensuring cover seal is properly set in its groove DUAL EVEMENT AIR GIEANER IMPORTANT Use warm soapy water to clean the foam filter DO NOT use gasoline or petroleum solvents to clean the air filter SPARK PLUG Operation with a defective or the wrong type of plug will be reflected in the engine performance as indicated by hard starting fouling missing overheating pre ignition or lack of normal power Therefore at each regular maintenance inspection or whenever the ignition system check indicates that the spark plug is in need of attention remove f
6. 1 800 426 5207 28 29 Nem 250 260 inch lbs Retaining ring screws 6 7 7 3 Nem 60 65 inch lbs Shaft nose screws 7 9 8 5 Nem 70 75 inch lbs Suction nozzle screws 7 9 8 5 Nem 70 75 inch lbs PART STANDARD AND SERVICE LIMIT Buffer 12 17 thickness 9 27 9 65 mm 0 365 0 380 in Impeller 12 11 diameter Impeller 12 11 width 93 22 0 13 mm 3 670 0 005 in Impeller 12 7 diameter Impeller 12 7 width 93 22 0 13 mm 3 670 0 005 in 34 11 0 05 mm 1 343 0 002 in 38 86 0 05 mm 1 530 0 002 in pm ga l 2 Distributor 12 6 diameter Distributor 12 6 width 123 39 123 47 mm 4 858 4 861 in 28 75 0 05 mm 1 132 0 002 in Pump inside depth 108 11 0 05 mm 4 256 0 002 in Pump ball bearing housing 51 99 52 02 mm 2 047 2 048 in Nozzle bushing bearing housing 19 037 19 063 mm 0 7495 0 7505 in Shaft ball bearing support 25 004 25 011 mm 0 9844 0 9847 in Shaft bushing bearing support 12 687 12 700 mm 0 4995 0 5000 in Shaft maximum run out 0 05 mm 0 002 in 07 2011 07 2011 www wildfire env com 1 800 426 5207 BB 4 Service Manual WARRANTIES A Warranty on Products Distributed by Wildfire Wildfire makes no warranty express or implied with respect to any product distributed by it and manufactured by third party manufacturers You the purc
7. 12 12 87 Extension for grease fitting 1 13 A 5536 Protective cap discharge 1 14 12 73 Plug 1 8 NPT brass 1 15 12 8 Pump body 12 16 4 stage 1 16 12 28NS Mechanical rotary seal 1 A 2688 Thread protector 2 Opt NPSH suction incl gasket 4 Bend lockwasher 18 from locknut 17 Using tool R 904L or 19 mm 3 4 wrench remove A 2161 Thread protector Opt locknut and lockwasher er discharge 5 Remove screws 27 A 1465 Thread protector 1 1 2 Opt 6 Using bench press and tools A 1890 A 4097 and A 5297 press out shaft assembly NH discharge incl gasket 7 Using seal puller A 7644 remove seal FA 4 1 4 turn quick connect Opt adaptor discharge incl gasket 8 Using bench press and tools A 1886 and A 5297 remove all impellers and distributors Operation is done in jogging strokes of press ram so that all parts will be removed in a group Assembly Procedure for Pump End 1 Slide bearing retaining ring 26 on shaft with plain face toward coupling collar 2 Press bearing 25 on shaft 3 Press rotary seal 16 in pump body using sleeve A 4329 This should be done carefully 4 Carefully pass end of shaft assembly through rotary seal bore Make sure that the flat sections of the shaft line up with the rotary seal flat sections Gently press down the shaft until ball bearing rests firmly against shoulder in pump body 5 Attach retaining ring 26 to pump body using six screws and tighten evenly and firmly
8. eg NS sO BRUSH SET RING RETAINING nut ARMATURE STARTER Ve ZE al gt 3 ec a sor 7 SA d STARTER MOTER lt STRAP STARTER VER CAP DRIVE Operation with a defective carburetor is reflected in engine performance as indicated by engine not starting momentarily starting then stopping running irregularly or missing backfiring not properly idling or not developing normal power and or overheating Therefore at each regular maintenance inspection or whenever check of carburetor indicates it is in need of attention proceed as follows AIR CLEANER ELBOW SUPPORT SCREW GOVERNOR LINK F AND SPRING KH GOVERNED IDLE SPRING GOVERNED IDLE TANG NSG Governor LEVER GOVERNOR LEVER NUT THROTTLE RESTRICTOR TANG The above is a general guideline Always refer to the Briggs amp Stratton Repair Manual 07 2011 07 2011 www wildfire env com 1 800 426 5207 BB 4 Service Manual VALVES Operation with misadjusted valve clearance is reflected in engine performance as indicated by engine not starting momentarily starting then stopping running irregularly or missing backfiring not properly idling or not developing normal power and or overheating Therefore at each regular maintenance inspection and whenever check of valve clearance indicates that it is in need of attention remove for inspection and service AIR CLEANER ELBOW CHOKE BRAKET AIR CLEANER 7 SUP
9. major breakdowns before they occur Maintenance on a fire pump unit should not be done on the fireline Therefore check your pump unit immediately after use en OT ee ee N O 13 15 16 17 Perform at every indicated month or at operating hour interval Clean unit thoroughly Check and clean air filter element replace if damaged Remove any accumulated dirt or debris around the muffler and recoil starter Clean air intake casing and cover with compressed air Check the engine oil level Ensure cooling passages and cylinder fins are clean Ensure spark plug is cleaned and has proper gap setting Check start switch and ignition switch for proper operation Check throttle and choke control for proper operation Check fuel line and fittings for signs of wear etc Check starter cable and mechanisms and replace if it shows excessive wear Check and grease pump end Check carburetor adjustments Operate pump unit and check general performance Note any performance irregularities of any abnormal mechanical sounds Make sure pump seal is not leaking Make sure all necessary tools spares and accessories are with the pump unit It is strongly suggested to always have extra spark plugs on hand Every Every Every Before 3 months 6 months year or use recommended whichever comes first or 50 hrs or 100 hrs 300 hrs Engine oil Check Refill Replace Oil filter Replac
10. may occur which should have no detrimental effect on the life or performance of the unit To Remove Pump from Engine 1 Lift pump clamp lever 2 Release tension adjusting knob at bottom of clamp 3 Remove clamp by tapping bottom end of each half clamp 4 Remove pump from engine To Attach Pump to Engine 1 Place flexible buffer coupling on engine coupling pins 2 Align flexible buffer coupling holes to pump end coupling pins and install 3 Carefully align clamp positioning pins with flange stub 4 Adjust tension knob located at bottom of clamp to obtain a light pressure on clamp ring To Drain Pump It is recommended that the pump be drained after every use This is a MUST during cold weather to prevent damage to the pump due to freezing 1 Remove discharge hose suction hose and priming cap 2 Drain pump by tilting and rotating pump unit several time 3 Stand pump on suction nozzle end for several minutes to complete drainage 4 Replace discharge suction and priming caps 07 2011 07 2011 www wildfire env com e 1 800 426 5207 TROUBLESHOOTING CHART BB 4 Service Manual ENGINE DOES NOT START OR STARTS MOMENTARILY THEN STOPS Possible cause Fuel supply tank empty Remedy Refill fuel tank Leak in fuel supply system Tighten or replace fittings Spark plug fouled or defective Clean or replace Stop switch or cable shorted Inspect and or change Weak or intermittent
11. mixture screw Ignition coil faulty or with incorrect air gap Inspect ignition coil and or readjust Governor out of adjustment Readjust Excessive carbon deposits in the combustion chamber Decarbonize ENGINE DOES NOT DEVELOP NORMAL POWER AND OR OVERHEATS Possible cause Check whether the choke is open Remedy Open the choke fully Air filter dirty Clean or replace Carburetor main jet clogged Clean the main jet Spark plug fouled or defective Clean or replace Weak or intermittent spark Inspect and or change Carburetor mountings loose or misadjusted Tighten mountings and or readjust Idle mixture screw misadjusted Adjust mixture screw Excessive carbon deposits in the combustion chamber Decarbonize Muffler blocked or dirty Clean and or replace Governor out of adjustment Readjust Valve or valve seats worn or damaged Inspect and or change Cylinder piston or piston ring worn Inspect and or change Refer to Briggs amp Stratton Repair Manual for more information BB 4 Service Manual PUMP TEST KIT Ref Part Description Qty A 2388 Pump test kit 1 incl all the parts listed below 1 A 2392 Pressure gauge 1 0 400 psi 0 2800 kPa 2 F5095E Hose SPEC 1 187 1 1 2 x 10 with brass coupling NPSH M F 1 F5095E00F10RBALFS 3 A 2389 Pump test kit box 1 4 A 2391 Rubber hose assembly 1 in
12. properly Suction hose and or pump body not completely filled with water e A bend in the suction hose located higher than the pump suction inlet causing an air lock The suction hose between the pump and water supply source must have a downward slope 2 Loose suction hose coupling or priming cap 3 Foot valve strainer clogged or too close to surface of water 4 Pump loses prime e Due to lack of water air lock may form in the suction hose when pump unit works against a high delivery head If this happens disconnect the discharge hose from the pump then reprime the pump in the normal manner e Pump runs out of water either because of lack of sufficient water supply or by attempting to pump water from a shallow water source The foot valve must remain at least one foot 30 cm under the water surface while pump is operating All suction couplings including foot valve must be wrench tightened Proper fitting gaskets must be used in all coupled joints Worn or dried out gaskets should be replaced with new gaskets The governor system will not stop the engine For engine damage protection the governor will not allow the engine to exceed speeds higher than 4000 100 RPM without load 07 2011 07 2011 www wildfire env com e 1 800 426 5207 REGULAR MAINTENANCE MAINTENANCE CHECK LIST ENGINE MAINTENANCE BB 4 Service Manual Regular maintenance is a schedule of continuous systematic maintenance designed to prevent frequent or
13. spark Inspect and or change Ignition coil faulty or with incorrect air gap Inspect ignition coil and or readjust Dirty fuel filter Inspect and clean Water or dirt in fuel system Drain flush thoroughly Carburetor mountings loose or misadjusted ENGINE RUNS IRREGULARLY OR MISSES Tighten mountings and or readjust Possible cause Fuel supply tank empty Remedy Refill fuel tank Leak in fuel supply system Tighten or replace fittings Spark plug fouled or defective Clean or replace Weak or intermittent spark Inspect and or change Ignition coil faulty or with incorrect air gap Inspect ignition coil and or readjust Dirty fuel filter Inspect and clean Water or dirt in fuel system Drain flush thoroughly Carburetor mountings loose or misadjusted Tighten mountings and or readjust Air filter dirty Clean or replace Governor out of adjustment Readjust Valve clearance incorrect Readjust Excessive carbon deposits in the combustion chamber Decarbonize ENGINE DOES NOT IDLE PROPERLY Possible cause Check whether the choke is open Remedy Open the choke fully Spark plug fouled or defective Clean or replace Weak or intermittent spark Inspect and or change Carburetor mountings loose or misadjusted Tighten mountings and or readjust Idle mixture screw misadjusted Adjust
14. 15 and 16 inside drive hub housing Install retaining ring 14 in its groove inside drive hub Press pump shaft assembly 19 in drive hub and install retaining ring 13 Ensure the drive hub drain hole is at the bottom Reassemble the drive hub to the drive front cover tighten to specified torque Reassemble drive back cover on engine tighten to specified torque Slide sprocket 6 over bushing 4 and slide on crankshaft Insert key 5 in engine shaft and tighten the 3 bushing screws so the sprocket outer face is 19 mm 3 4 from drive back cover Push key 5 flush to crankshaft bushing face Apply Loc Tite on bushing set screw and tighten Slide sprocket 6 over bushing 9 and slide on pump drive shaft 19 Insert key 18 in drive shaft and tighten the 3 bushing screws so the sprocket outer face is 19 mm 3 4 from drive front cover Push key 18 flush to drive shaft bushing face If possible apply Loc Tite on bushing set screw and tighten If not this set screw is not required Reinstall belt over pulleys as you push drive front cover upper locating holes over the upper positioning pin Rotate front cover clockwise to clear lower locating pin To tighten belt rotate front cover CCW so the lower location hole will come in line with lower location pin Push front cover against back cover and tighten the screws 12 07 2011 07 2011 www wildfire env com 1 800 426 5207 BB 4 Service Manual ENGINE OVERHAUL Air Filter
15. 2 3 Move throttle lever to allow engine to idle for 1 2 minutes Move FUEL VALVE to the OFF position and let the engine run for 15 20 seconds Turn IGNITION SWITCH to the OFF position When the BB 4 engine is well maintained and operated within normal guidelines the motor will maintain longevity with trouble free service WATERAX veg BB 4 Service Manual www wildfire env com e 1 800 426 5207 COLD WEATHER IMPORTANT In cold operation it is good practice to put a small amount of aluminium compatible antifreeze into the pump end through discharge immediately after use to prevent damage from freezing WATERAX veg Recommended Procedure for Cold Weather or Prolonged Storage The following procedure is recommended to assure proper protection of the engine if the engine is to be left idle for prolonged periods between use or if there is a possibility that the engine may be stored in an unheated area where freezing temperatures may occur 1 Move FUEL VALVE LEVER to the OFF position 2 With pump unit running at approximately 1 2 throttle allow engine to run until all fuel has left the carburetor and the engine comes to a stop 3 Remove spark plug 4 Rotate crankshaft until piston is at top dead center 5 Pour 1 oz 30 ml of oil into spark plug opening It is preferable to keep the pump unit in dry storage above freezing temperature However as this is not always possible some slight rusting
16. PORT FX INTAKE MANIFOLD AND CARBURATOR PLEASE REFER TO DRAWING ON THE qu AIR CLEANER ASSEMBLY Os d lt lt ASF GOVERNOR CONTROL Kai a TY B BRACKET Sr e GOVERNOR LEVER VALVE COVERS fF Fe CYLINDER SHIELDS EXHAUST MANIFOLD 2 COULD BE DIFFERENT FROM MANIFOLD SHOWN HERE Note Recoil starter and starter pulley are missing from diagram WATERAX bag BB 4 Service Manual www wildfire env com e 1 800 426 5207 OIL PUMP OIL COOLER WATERAX veg Efficient engine lubrification is accomplished by a full pressure lubrication system The oil pump draws oil through a screened pick up in the engine base and pumps the oil through the oil galleries in the crankcase cover or sump where it is distributed to the PTO bearing and cam gear bearing An oil gallery in the cam gear connects to the oil gallery on the magneto side of the cylinder lubricating the magneto bearing NOTE The oil pump is virtually trouble free and requires very little service An oil pressure switch is installed in the oil filter adapter When the oil pressure drops below approximately 5 psi 35 Pa the switch activates a warning light The following chart can be used as a troubleshooting guide for diagnosing the pressure lube system LOW OIL PRESSURE HIGH OIL PRESSURE 1 Low engine RPM Incorrect viscosity 2 Low oil level Defective oil pressure gauge 3 Incorrect viscosity Stock
17. Tel 800 426 5207 Tel 800 426 5207 514 637 5572 604 864 4176 780 484 3705 Fax 514 637 3985 Fax 604 864 4186 Fax 780 484 5115 E mail infoQwildfire env com Distributed by WE MOVE WATER
18. ation Fill crankcase to the proper level indicated on the oil dipstick with good quality clean engine oil Oil recommendations Use any 4 stroke high quality detergent oil having API service category SE SF or SG in this engine Recommended operating range 5 F to 104 F 15 C to 40 C SAE 10W 30 is recommended for general use Other viscosity shown in the chart may be used when the average temperature in your area is within the recommended range 07 2011 07 2011 www wildfire env com e 1 800 426 5207 PUMP UNIT WARNING Exhaust gas contains poisonous carbon monoxide Avoid inhalation of exhaust gas Never run this pump in a closed or confined area BB 4 Service Manual Controls There are only 6 controls which are used for normal operation the FUEL VALVE the ON OFF SWITCH the THROTTLE the CHOKE the START BUTTON the MUFFLER LEVER HANDLE and the PRIMING VALVE EXHAUST PRIMING SYSTEM d MUFFLER LEVEL HANDLE ON OFF SWITCH OIL DIP STICK START BUTTON CG ag PRESSURE GAUGE AUTOMATIC CHOKE gt CHECK VALVE RECOIL STARTER PRIMING VALVE FUEL VALVE OIL DRAIN EXHAUST PRIMING DRIVE ASSEMBLY SYSTEM To start the BB 4 unit Fill fuel supply tank with recommended fuel grade Connect fuel supply line to fuel supply tank Attach fuel supply line to the adaptor located on right side of engine frame Pump fuel to fill supply line DO NOT use suction hose without foot va
19. cl a set of 2 adaptors A 2391B 5 A 2391B Adaptor Female 2 NPT Swivel Female 6 A 2390A Shut off valve 1 7 A 2390 Pressure gauge 1 adaptor 1 1 2 38 mm female NPSH to 1 1 2 38 mm male NPSH 8 A 2395 Brass calibrated nozzle 1 tip set 1 8 1 4 5 16 3 8 7 16 3 mm 6 mm 8 mm 9 5 mm 11 mm 9 C 1933 Calibrated nozzle 1 1 2 12 7 mm GOVERNOR SYSTEM WARNING Should the pump lose its prime the engine should be stopped as soon as possible This will prevent the pump end from running dry and causing damage to the rotary seal WATERAX veg www wildfire env com e 1 800 426 5207 Testing Procedure The best way to to check that your pump unit is functioning properly is to make an actual performance test A test kit consisting of pressure gauge pressure gauge adapter 3 m 10 length of discharge hose a nozzle and a calibrated set of nozzle tips is available Your BB 4 is in satisfactory running condition if when using the various calibrated tips the pressures are consistent with the values in the following chart BB 4 NOZZLE 1 2 7 16 3 8 5 16 1 4 1 8 SIZE 12 7 mm 11 mm 9 5 mm 8 mm 6 mm 3 mm BE 145 150 psi 215 220 psi 275 280 psi 330 335 psi 2275 2310 psi 405 410 psi RANGE 1000 1034 kPa 1482 1517 kPa 1896 1931 kPa 2275 2310 kPa 2586 2620 kPa 2792 2827 kPa Governor system overspeeding protection may occur if 1 Pump not primed
20. d slot in the shaft Place O ring 7 in groove of suction cover 6 then bench press the cover into the pump body until it rests on face of first distributor A gap of approximately 0 794 mm 1 32 between nozzle flange and end of body is normal Attach suction cover to body by using the 5 screws and lockwashers 2 Tighten screws evenly and firmly Attach shaft nose 3 using lockwasher 2 and screw 1 Tighten screw evenly and firmly Check gasket in the priming cap 9 and replace if damaged Reinstall the suction and discharge thread protectors if equipped Reinstall caps on suction and discharge inlets Use a clean gun filled with fresh grease Remove dirt from grease fitting before applying grease gun Grease should be pumped slowly into bearing chamber until fresh grease appears around bearing retaining ring Wipe off excess grease A grease relief valve old style only has been provided to prevent pressure buildup on the rotary seal should the fresh grease not be able to flow completely through the bearing due to old grease being hard packed etc WATERAX veg BB 4 Service Manual DRIVE ASSEMBLY Ref Part Description Qty C 7720 Drive assembly complete 1 C 7721 Drive cover assembly 1 sold as a set 2 FAST 502 Lock washer 8 steel plated 3 FAST 23 Bolt engine mounting 4 4 PART 4 Bushing 1 shaft incl 1 3 screws 3 lock washers and set screw 5 PART 7
21. e Air filter Check foam amp paper Clean or replace Fuel tank and filter Clean Replace Fuel line Inspect Every year Replace Every year Spark plug Check Adjust Replace Spark arrester Clean or replace Valve clearance Inspect Adjust NOTE 1 2 Service more frequently when used under heavy load in high ambient temperature or in dusty areas Replace fuel filter if dirt or water are present If filter is removed install with flow in same direction as removed When in doubt use new filter WATERAX veg BB 4 Service Manual www wildfire env com e 1 800 426 5207 PUMP OVERHAUL SERVICE PROCEDURE PUMP END Disassembly Procedure for Pump End 11 12 13 14 15 16 1 Remove shaft nose 3 by Ref Part Description Qty removing screw 1 and lockwasher 2 These will 1 12 42 Mach screw stainless 1 be visible upon removal steel nylon insert of suction protective cap 2 12 38 Lock washer stainless steel 9 2 Remove screws 5 3 12 13 Nose for shaft 1 due 4 4 A 5537 Protective cap suction 1 and lockwashers 4 5 12 39 Mach screw stainless steel 8 3 Using tool A 1888 6 12 12A Suction cover with 1 remove suction bronze bearing T 1221 O ting cover 8 12 43 Gasket 1 1 2 38 mm 1 9 12 10 Cap for priming port 1 10 A 5538 Retainer for priming cap 1 11 12 29 Grease fitting 1
22. en dry must be primed DO NOT use suction hose without foot valve strainer Drain pump after every use Electric with a backup recoil starter Should the electric starter not work grasp recoil starter handle firmly and pull When engine starts retain grip on handle and allow rope to rewind slowly Note The rope should be replaced when wear is apparent Do not disconnect the ignition cable from the spark plug while engine is running nor operate the starter with the ignition cable disconnected To do so imposes a severe load on the coil and the possibility of rupturing the winding insulation Fuel Unleaded gasoline with an octane rating of 86 or higher Do not use stale or contaminated gasoline or an oil gasoline mixture This engine is equipped with a full pressure lubrication system and oil filter Change oil after first 5 hours of operation Thereafter change oil every 25 hours of operation and replace oil filter every 50 hours Occasionally you may hear a light spark knock or pinging while operating under heavy loads This is no cause for concern If you hear those noises at a steady engine speed under normal load change brand of gasoline If spark knock or pinging persists contact your Wildfire distributor or authorized Briggs amp Stratton dealer Running the engine with persistent spark knock or pinging can cause engine damage This is misuse and the warranty does not cover parts damaged by misuse Lubric
23. haser can only rely upon such warranties if any that are made by their respective manufacturers and subject the limitations that may be contained in such warranties according to the respective terms thereof Wildfire hereby assigns as applicable any such manufacturer warranty to you as the purchaser if assignable However Wildfire disclaims all other warranties or conditions for items whether express oral implied or otherwise as to any matter whatsoever including but not limited to implied warranties or conditions of merchantable quality or fitness for a particular purpose and those arising by statute or otherwise in law or form a course of dealing usage of trade B Warranty on Products Manufactured by or for Wildfire Wildfire offers a limited warranty as described fully below Among other things it also specifically disclaims liability for e Failure of the product if it is used for other than its intended purpose e Changes or modifications not expressly approved by Wildfire e Unreasonable use supplemental damage or damage to the product not resulting from defects in material or workmanship e Any personal injury damages of any kind resulting from misuse improper installation negligence repair or alteration of the product No Consequential Damages Some states and provinces do not allow the exclusion or limitation of incidental or consequential damages so the above limitations may not apply to you This statutory warranty gives y
24. ll not be liable for any penalty or for any special indirect or consequential damages including but not limited to any economic loss loss of revenue or loss of opportunity The foregoing warranty is in lieu of all other warranties express or implied including but not limited to any implied warranties of merchantability or fitness for a particular purpose Your exclusive remedy with respect to any and all losses or damages resulting from any cause whatsoever including our negligence shall be repair or replacement as specified above We shall in no event be liable for any consequential or incidental damages of any nature including without limitation damages for personal injury or damages to property and however occasioned whether alleged as resulting from breach of warranty or contract by us or our negligence or otherwise www wildfire env com 1 800 426 5207 Tech notes part lists and other documents can be found on our web site at www wildfire env com Wildfire Environmental USA Inc 16311 NE Cameron Blvd 950 Riverside Parkway Suite 50 Portland OR West Sacramento CA USA 97230 USA 95605 Tel 800 426 5207 Tel 800 426 5207 503 257 7900 916 372 9004 Fax 503 257 7979 Fax 916 372 9006 Wildfire Environmental Inc 1100 rue Norman street Suite 200 2602 Mount Lehman Road Suite 102 17426 106A Avenue Lachine QC Abbotsford BC Edmonton AB Canada H8S 1A6 Canada V4X 2N3 Canada T5S 1E6 Tel 800 426 5207
25. lve strainer DO NOT allow foot valve strainer to rest on bottom of lake or riverbed Do not allow foot valve strainer to rest on bottom of lake or riverbed Check strainer frequently to make sure that it is not clogged with moss leaves etc Do not lift strainer from water while the pump is operating Connect foot valve strainer to male end of suction hose then fill suction hose with water and connect to pump Use universal hose coupling wrench to tighten coupling firmly Connect discharge hose nozzles etc to pump Use a rope or other means to keep strainer at proper height approximately 1 foot 30 cm below water surface If strainer is too close to the water surface it will draw air and pump may lose prime Turn the ON OFF ignition switch to ONT position Close choke if engine is cold Pull the THROTTLE to 1 3 Press and hold START button or give starter rope a quick steady pull until engine starts Open choke Open PRIMING VALVE located just below check valve Pull THROTTLE to full speed position Close and press down firmly on MUFFLER LEVER HANDLE until a solid stream of water flows from priming ejector Close the PRIMING VALVE and re open the MUFFLER LEVER HANDLE The check valve will open automatically under the water pressure when priming occurs Reduce throttle setting to 1 2 full speed and allow engine to warm up for at least 2 minutes before using full throttle To stop the BB 4 unit di
26. n a well ventilated area with the engine stopped Characteristics Maximum Performance 171 lbs 77 kg Pressure Discharge Flow Height 21 54 cm Psi kPa US GPM L min IMP GPM Width 22 57 cm 0 0 105 397 87 Length 35 89 cm 800 99 373 82 Pump end only 15 Ibs 6 8 kg 201 1386 87 331 73 Max engine power amp 4000 rpm 23 17 2 kW 288 1986 72 272 60 Ignition Magnetron electronic 354 2441 56 46 Spark plug RJ19LM Champion 397 2737 A11LM Autolite 420 2896 AR10 Motorcraft 425 2930 Consumption approx 2 0 US gals hour 7 6 L 1 7G IMP gals WATERAX veg BB 4 Service Manual www wildfire env com e 1 800 426 5207 DIRECTIONAL REFERENCES SERIAL NUMBERS IMPORTANT STARTER OPERATING INSTRUCTIONS Synthe WATERAX veg All references to the right and left side of the unit are made as they appear to the operator when facing the rewind starter The Pump End s serial number is located on the pump end label the Engine s serial number is located on the engine block and the Pump Unit s identification label is located on the left side of the engine These serial numbers are the key to various design details pertaining to the original fabrication of each unit Therefore it is important to specify serial numbers whenever ordering parts and tools or when requesting information DO NOT run engine at full speed until thoroughly warmed up DO NOT run pump wh
27. or inspection and service If tip of insulator core is rough cracked broken or blistered or if electrodes are burned away to the extent that they are too thin and cannot be satisfactorily adjusted to recommended gap replace with new plug ALTERNATOR The BB 4 is equipped with 16 Amp alternator regulator rectifier Wiring Battery Wiring Ignition Generator Alternator Regulator BK 14GA YL 14GA Kee RD 14GA Fay BK 14GA RD 14GA Spark Plug gl 1 Stop switch Armature coil cyl 1 Battery Starter Motor Start Button Armature coil Pr COLOR LEGEND BK BLACK RD RED YL YELLOW Spark Plug cyl 2 The above is a general guideline Always refer to the Briggs amp Stratton Repair Manual WATERAX veg BB 4 Service Manual www wildfire env com e 1 800 426 5207 ELECTRIC STARTER CARBURETOR WATERAX veg The BB 4 is equipped with an electric starter with a backup rewind starter When the starter is activated the pinion gear should engage the flywheel ring gear and turn over the engine If the starter motor drive does not react properly inspect the helix and pinion gear for freedom of operation If sticking condition exists the parts may be washed in a solvent DO NOT oil or grease helix or starter gear MOTOR STARTER ALUMINUM RING GEAR CAP END RETAINER BRUSH CLUTCH DRIVE ED Le Le A GEAR ayy Gs dl i VA t PINION e Gu
28. ou specific legal rights and you may have other rights which vary from state to state or province to province Wildfire offers a limited guarantee of all products manufactured by Wildfire to be free of defects in material and or workmanship for a period of one 1 year from date of invoice subject to use of such products strictly according to instructions Any product manufactured by or for us believed by you to contain a defect must be returned to Wildfire for examination and evaluation You are responsible for payment of transportation charges If after inspection by us or an expert appointed by us the product is in fact found to be defective Wildfire will repair or replace the defective product and reimburse the original buyer for transportation charges to and from our warehouse Limitation of Liability THE WARRANTY SPECIFIED HEREIN IS LIEU OF ANY AND ALL OTHER WARRANTIES EXPRESSED OR IMPLIED Wildfire hereby expressly disclaims any express or implied warranties of merchantability or of fitness for any particular purpose Wildfire s liability on any claim of any kind including negligence for any damage or loss including but not limited to personal injury or consequential damage arising out of connected with or resulting from this contract or from the manufacture lease sales delivery resale return repair maintenance handling or use of any product covered by or furnished under this sale shall in no case exceed the purchase price Wildfire sha
29. pressure relief plunger 4 Incorrect oil filter Plugged oil galleries 5 Defective oil pressure gauge 6 Broken or incorrect length pressure relief spring Missing pressure relief plunger Worn bearings 9 Damaged or defective oil pump co N The 23HP engine is equipped with an oil cooler The oil cooler is mounted on the blower housing Filtered oil is routed through the oil cooler through two oil lines from a special oil filter adapter Forced air from the flywheel fan blows through the oil cooler fins dissipating heat from the engine oil The oil cooler fins should be cleaned every on a regular basis or as required The above is a general guideline Always refer to the Briggs amp Stratton Repair Manual 07 2011 07 2011 www wildfire env com 1 800 426 5207 BB 4 Service Manual PISTON RINGS RODS AND CRANKSHAFT CYLINDER HEADS BREATHER PISTON AND TAPPETS CONNECTING ROD ASSEMBLIES FLYWHEEL PE BACKPLATE CAMFSHAFT AND GOVERNOR SPOOL CRANKCASE COVER OR SUMP TOP COMPRESSION RING LD MARK BARREL FACE INDICATES J I Nr A TOP oF RINGS N SECOND N COMPRESSION RING TAPER FACE OIL RING EXPANDER pe 2 The above is a general guideline Always refer to the Briggs amp Stratton Repair Manual WATERAX eg BB 4 Service Manual TORQUE VALUES PUMP END CLEARANCE DATA AND LIMIT PUMP END WATERAX veg Nut 12 50 www wildfire env com
30. try and rural fire environments High pressure up to 425 PSI 2930 kPa is provided to operate very long hose lays and overcome pressure losses due to large elevation changes often encountered in rugged wildland fire operations The higher power makes it ideal for pumping at high altitudes A unique feature of the BB 4 pump is the quick release pump end that is inter changeable with our Mark 3 pump This standardization allows for in field pump end exchanges eliminating long equipment down time and greatly reduces the inventory of parts at equipment service shops The BB 4 is powered by a 23 HP V Twin cylinder 4 stroke air cooled Briggs amp Stratton Vanguard engine Ball bearings used throughout it is equipped with an electric starter and a backup rewind starter e The improper use of this pump could result in serious injuries Please read this entire manual before using your BB 4 pump unit e Always wear eye and ear protection when operating the pump unit e Always check for sufficient oil quantity in crankcase before use e Be alert and never touch the muffler guard when the engine is running Always allow enough time after stopping the unit for proper cooling of the muffler and surrounding parts e Always use the proper unleaded gasoline with a pump octane rating of 86 or higher to assure suitable operation of the 4 cycle engine e Refuel engine with care Gasoline is extremely flammable and gasoline vapor can explode Refuel i
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