WycoTool WBP50 Backpack - Manual (Page 9)

User Manual
Page 9 March 2014
Using the Tachometer
The tachometer records engine hours and speed .
Press and release the tachometer button to toggle between
Hours, Tach and Service modes .
To view the number of engine startsE: In Hours mode
(hourglass icon on left side of screen), hold down the button .
The screen will display the number of Engine Starts .
To view the maximum RPM displayE: On the RPM screen,
press and hold the button until Max 2RPM is displayed . This is
your Max RPM .
To clear the maximum RPM, continue to hold the button until
“00000” displays .
Stopping the Engine
To stop the engine in an emergency, simply turn the engine
switch to the OFF position . Under normal conditions, use the
following procedure .
1 . Move the orange throttle lever to the STOP position .
2 . Turn the engine switch to the OFF position .
3 . Turn the fuel valve lever to the OFF position .
MAINTENANCE
Flex Shaft Grease
After each 50 hours of use, re-grease the flex shaft with Wyco
synthetic shaft grease #514B .
Vibrator Head Lubricant
If the vibrator head used is oil lubricated, after 50 hours of
use, change oil with Wyco lubricant #514-O .
Speed Increaser Servicing
After 250 hours of operation, the speed increaser assembly
should be disassembled, thoroughly cleaned and
reassembled with 1 ounce of Wyco gear oil SF 1000 (Wyco
part number W402151, 8 oz .) While disassembled, check
to see if the centrifugal clutch or the clutch drum need
replacing due to wear . A replacement clutch kit is available .
See drawing “W402316 Replacement Clutch Kit” on page 23 .
Use the Wyco drawings at the back of this manual as a
reference while assembling and disassembling .
1 . Remove 4-1/4-28x3 .0 long socket head cap screws (Wyco
part number W402629) and the split ring lock washers
(Wyco part number W402117) from the speed increaser
housing (Wyco part number W402601) that attach it to
the Honda GXH50 engine, and disconnect the speed
increaser housing from the motor .
2 . Remove 4 #10-24x2 .25 long socket head cap screws (Wyco
part number W402626) and the split ring lock washers
(Wyco part number W402XX) from the motor adapter
housing (Wyco part number W402153) and allow the gear
oil to drain from the gear housing .
3 . Remove the gear oil plug (Wyco part number W402152),
the nylon washer (Wyco part number W402153) and allow
the gear oil to drain from the gear housing .
4 . Clamp the speed increaser housing into a vise to secure it
while removing the internal components .
5 . Hold the clutch drum (Wyco part number W402187) in
place using a chain or oil filter style strap wrench and
unscrew the hex driver on the opposite end using a 5/16"
allen wrench .
6 . When the clutch drum is removed, it will allow for removal
of the bearing adapter retainer plate (Wyco part number
W402610) . This plate lifts off and interfaces with an O-ring
(Wyco part number W402627) . Remove the O-ring to
allow for removal of the input gear assembly (Wyco part
number W402615) .
7 . Tap on the internal gear through the plug hole on the
base of the speed increaser to loosen and remove the
input gear assembly .
8 . Remove the snap ring (Wyco part number W402125) that
holds the output gear assembly in place and remove the
assembly from the housing .