Concrete VibratorBackpack Model WBP50VBR-UM-00173-EN-02 (March 2014)User Manual
Concrete Vibrator, Backpack Model WBP50Page 10 March 20149. Inspect the gear teeth and verify they are not worn. Check the bearings to verify they a
User ManualPage 11 March 2014◊ Carbon monoxide poisoning from engine exhaust. Operate outside away from open windows or doors.◊ Burns from hot parts
Concrete Vibrator, Backpack Model WBP50Page 12 March 20143. Refuel carefully to avoid spilling fuel. Do not ll the fuel tank completely. It may be
User ManualPage 13 March 2014OTE:N Running the engine with a low oil level can cause engine damage. This type of damage is not covered by the Distribu
Concrete Vibrator, Backpack Model WBP50Page 14 March 20146. After the spark plug is seated, tighten with a 5/8" spark plug wrench to compress t
User ManualPage 15 March 20142. After adding a gasoline stabilizer, run the engine outdoors for 10 minutes to be sure that treated gasoline has repla
Concrete Vibrator, Backpack Model WBP50Page 16 March 2014TROUBLESHOOTINGEngine Will Not Start Possible Cause CorrectionCheck control positions.Fuel v
User ManualPage 17 March 2014W402535 Backpack AssemblyItemPart NumberQty Description1 4025630 1 Frame, steel, backpack, Honda; assembly2 402304 1 Engi
Concrete Vibrator, Backpack Model WBP50Page 18 March 2014W402530 Frame AssemblyItem Part Number Qty Description1 W402513 1 Frame, weldment; backpack;
User ManualPage 19 March 2014W402600 Speed Increaser Assembly, 1 of 4Item Part Number Qty Description1 W402601 1 Housing, speed increaser; machined2 W
Concrete Vibrator, Backpack Model WBP50Page 2 March 2014
Concrete Vibrator, Backpack Model WBP50Page 20 March 2014W402600 Speed Increaser Assembly, 2 of 4Item Part Number Qty Description1 W402601 1 Housing,
User ManualPage 21 March 2014W402600 Speed Increaser Assembly, 3 of 4Item Part Number Qty Description1 W402601 1 Housing, speed increaser, machined2 W
Concrete Vibrator, Backpack Model WBP50Page 22 March 2014W402600 Speed Increaser Assembly, 4 of 4Item Part Number Qty Description1 W402601 1 Housing,
User ManualPage 23 March 2014W402316 Replacement Clutch KitItem Part Number Qty Description— 402316 1Clutch assembly, 0.625 diameter straight shaft wi
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User ManualPage 3 March 2014CONTENTSSafety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Concrete Vibrator, Backpack Model WBP50Page 4 March 2014Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
User ManualPage 5 March 2014SAFETYRead and follow all safety precautions given in the Honda engine instruction manual for their GXH50 engine. Read and
Concrete Vibrator, Backpack Model WBP50Page 6 March 2014ADJUSTING THE BACKPACKThe backpack has a number of straps that let you adjust your load for m
User ManualPage 7 March 2014PREOPERATION CHECKSIs Your Engine Ready to Go?For your safety, and to maximize the service life of your equipment, take a
Concrete Vibrator, Backpack Model WBP50Page 8 March 2014To start a cold engine, move the choke lever to the CLOSED position. To restart a warm engine
User ManualPage 9 March 2014Using the TachometerThe tachometer records engine hours and speed.Press and release the tachometer button to toggle betwee
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