Concrete Vibrator Backpack Model WBP50 VBR-UM-00173-EN-02 (March 2014) User Manual
Concrete Vibrator, Backpack Model WBP50 Page 2 March 2014
User Manual CONTENTS Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Benefits of Vibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Concrete Vibrator, Backpack Model WBP50 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
User Manual SAFETY HEAD AND SHAFT SELECTION Read and follow all safety precautions given in the Honda engine instruction manual for their GXH50 engine. Read and follow the safety instructions given below. The WBP50 uses a quick disconnect (Q.D.). The Q.D. connect lets you push the flex shaft assembly into the motor connector, rotate it 1/4 turn, then use a lever mechanism to lock it in place. If using a Wyco shaft with a threaded end, threaded male connector part number W423500 is required.
Concrete Vibrator, Backpack Model WBP50 ADJUSTING THE BACKPACK The backpack has a number of straps that let you adjust your load for maximum comfort. Frame The adjustable frame allows you to position the straps to fit your body. 1. Loosen and pull out the Velcro closure. 2. Put the harness strap into the right position, then lace the straps through the 4 attachment loops. Tighten the strap and secure the Velcro closure.
User Manual PRE-OPERATION CHECKS Is Your Engine Ready to Go? For your safety, and to maximize the service life of your equipment, take a few minutes before you operate the engine to check its condition. Take care of any problems you fine, or have your servicing dealer correct them, before you operate the engine. IMPROPERLY MAINTAINING THE ENGINE, OR FAILURE TO CORRECT A PROBLEM BEFORE OPERATION,CAN CAUSE A MALFUNCTION IN WHICH YOU COULD BE SERIOUSLY INJURED OR KILLED.
Concrete Vibrator, Backpack Model WBP50 To start a cold engine, move the choke lever to the CLOSED position. To restart a warm engine, leave the choke lever in the OPEN position. Turn the engine switch to the ON position. Setting the Engine Speed Position the throttle lever for the desired engine speed. Vibrator heads rotate at twice the speed of the engine and are designed for nominal speeds of 12,000…13,000 RPM (Engine speed of 6,000…6,500 RPM).
User Manual Using the Tachometer The tachometer records engine hours and speed. Press and release the tachometer button to toggle between Hours, Tach and Service modes. MAINTENANCE Flex Shaft Grease After each 50 hours of use, re-grease the flex shaft with Wyco synthetic shaft grease #514B. Vibrator Head Lubricant To view the number of engine starts: In Hours mode (hourglass icon on left side of screen), hold down the button. The screen will display the number of Engine Starts.
Concrete Vibrator, Backpack Model WBP50 9. Inspect the gear teeth and verify they are not worn. Check the bearings to verify they are functional—turning smoothly and freely. If either is worn, replace them both. IIMPORTAN If EITHER the gear teeth OR the bearings are worn, replace them BOTH at the same time with Wyco part numbers W402615 and W402620. 10.
User Manual ◊ Carbon monoxide poisoning from engine exhaust. Operate outside away from open windows or doors. Failure to follow this maintenance schedule could result in non- warrantable failures. ◊ Burns from hot parts. Let the engine and exhaust system cool before touching. Refueling Recommended Fuel ◊ Injury from moving parts. Do not run the engine unless instructed to do so. • Unleaded gasoline Read the instructions before you begin, and make sure you have the tools and skills required.
Concrete Vibrator, Backpack Model WBP50 “Recommended Oil” on page 12) to the upper limit mark on the bottom edge of the oil fill hole. Do not overfill. 4. Reinstall the oil filler cap/dipstick. 3. Refuel carefully to avoid spilling fuel. Do not fill the fuel tank completely. It may be necessary to lower the fuel level depending on operating conditions. After refueling, tighten the fuel filler cap securely.
User Manual NNOTE: Running the engine with a low oil level can cause engine damage. This type of damage is not covered by the Distributor’s Limited Warranty. 4. Reinstall the oil filler cap/dipstick securely. Air Cleaner A dirty air cleaner will restrict air flow to the carburetor, reducing engine performance. If you operate the engine in very dusty areas, clean the air filter more often than specified in the “Maintenance Schedule” on page 11.
Concrete Vibrator, Backpack Model WBP50 6. After the spark plug is seated, tighten with a 5/8" spark plug wrench to compress the sealing washer. 7. When installing a new spark plug, tighten 1/2 turn after the spark plug seats to compress the washer. 8. When reinstalling the original spark plug, tighten 1/8 to 1/4 turn after the spark plug seats to compress the washer. NNOTE: A loose spark plug can overheat and damage the engine. Overtightening the spark plug can damage the threads in the cylinder head.
User Manual 2. After adding a gasoline stabilizer, run the engine outdoors for 10 minutes to be sure that treated gasoline has replaced the untreated gasoline in the carburetor. 3. Stop the engine, and move the fuel valve lever to the OFF position. Draining the Fuel Tank and Carburetor GASOLINE IS HIGHLY FLAMMABLE AND EXPLOSIVE, AND YOU CAN BE BURNED OR SERIOUSLY INJURED WHEN HANDLING FUEL. • STOP ENGINE AND KEEP HEAT, SPARKS, AND FLAME AWAY. • HANDLE FUEL ONLY OUTDOORS.
Concrete Vibrator, Backpack Model WBP50 TROUBLESHOOTING Engine Will Not Start Check control positions. Possible Cause Engine Lacks Power Correction Fuel valve OFF. Move lever to ON position. Choke open. Move lever to CLOSED position unless the engine is warm. Engine switch OFF. Turn engine switch to ON position. Check engine oil level. Engine oil level low (Oil Fill with the Alert stops engine). recommended oil to the proper level. See “Engine Oil” on page 12. Check throttle wire.
User Manual W402535 Backpack Assembly 1 Part Number 4025630 2 Item Qty Description 1 Frame, steel, backpack, Honda; assembly 402304 1 Engine, Honda; 50 cc 2.
Concrete Vibrator, Backpack Model WBP50 W402530 Frame Assembly Page 18 Item Part Number Qty Description 1 W402513 1 Frame, weldment; backpack; Honda 2 W402302 1 Backpack frame Deuter (not shown) 3 W402532 2 Brace; frame; backpack 4 W402527 8 Washer, flat, zinc plated, 1/4" 5 W402528 4 Screw, socket head, Nyloc, 1/4-20 6 W402529 4 Nut, zinc plated, 1/4-20 7 W402150 1 Decal, caution, backpack engine 8 W402184 1 Backpack, Ergopack March 2014
User Manual W402600 Speed Increaser Assembly, 1 of 4 March 2014 Item Part Number Qty Description 1 W402601 1 Housing, speed increaser; machined 2 W402602 1 Bearing adapter; speed increaser 3 W402615 1 Gear assembly, input; speed increaser 4 W402620 1 Gear assembly, output; speed increaser 5 W402607 1 Q.D.
Concrete Vibrator, Backpack Model WBP50 W402600 Speed Increaser Assembly, 2 of 4 Page 20 Item Part Number Qty Description 1 W402601 1 Housing, speed increaser, machined 2 W402620 1 Gear assembly, output, speed increaser 3 W402125 1 Ring, retaining; internal Item Part Number Qty 1 W419661 2 Bearing, ball, deep groove 2 W402131 1 Spacer, bearing 3 W402619 1 Gear, output shaft, machined 4 W402189 1 Driver, hex; backpack; black oxide Item Part Number Qty 1 W402614 1 G
User Manual W402600 Speed Increaser Assembly, 3 of 4 March 2014 Item Part Number Qty Description 1 W402601 1 Housing, speed increaser, machined 2 W402620 1 Gear assembly, output, speed increaser 3 W402125 1 Ring, retaining, internal 4 W402602 1 Bearing, adapter, speed increaser 5 W402615 1 Gear assembly, input, speed increaser 6 W402610 1 Plate; bearing adapter retainer 7 W402628 4 Screw, socket head cap; #10-24 x 2-1/4" long; Z.P.
Concrete Vibrator, Backpack Model WBP50 W402600 Speed Increaser Assembly, 4 of 4 Page 22 Item Part Number Qty Description 1 W402601 1 Housing, speed increaser; machined 2 W402607 1 Coupling; quick disconnect; backpack 3 W402625 2 Shoulder screw; hex head self-locking; 1/4"-20 4 W402187 1 Drum, clutch; backpack; Honda; Noram 5 W402612 1 Bracket; motor mounts; speed increaser Item Part Number Qty 1 W402601 1 Housing, speed increaser; machined 2 W402607 1 Coupling; quick di
User Manual W402316 Replacement Clutch Kit Item Part Number Qty — 402316 1 Description Clutch assembly, 0.625 diameter straight shaft with 3/16" keyway for Honda engine hub bore diameter 0.6250 +0.0000/–0.
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