JLG DVSP Series Service Manual - Manual (Page 33)

SECTION 3 - BASE COMPONENTS
3121136 – JLG Lift – 3-3
Wheel Retention for Rough Terrain Drive
Wheel (Option)
1. The rought terrain drive wheel is installed same as
the regular drive wheel except - place the wheel onto
drive motor shaft ensuring that the deepest point of
the rim, 5/8" as shown below, is facing out.
Failure to do so will result in the drive wheel rubbing
the drive motor cover.
2. Replace shims and the retaining washer.
3. Apply Loctite #242 onto retaining screw and install
with a torque rating of 35 ft lb.
IMPORTANT
FAILURE TO APPLY LOCTITE #242 TO THE RETAINING SCREW
AND TORQUING THE RETAINING SCREW TO 35 FT LB MAY
RESULT IN THE WHEEL COMING LOOSE AND FALLING OFF
3.4 DRIVE MOTOR COMPONENT -
SERVICING
Torque Limiting Clutch Maintenance
DVL Series and DVSP machines are equipped with a torque
limiting clutch coupling on each drive axle. The clutch is
mounted in line on a split drive axle between the drive wheel
and the drive motor gear box. The clutch is designed to slip
at a preset torque (220 ft. lb.) if the machines rear wheels are
over-driven while the machine is being towed, pushed or
forklifted, thus preventing damage to the drive gear box.
Although factory pre-set, the clutch assembly torque setting
should be checked;
• Annually - during Annual Inspection
However, if the lift is being moved via a fork truck on a regu-
lar or frequent basis, then the torque clutch may be forced
into a slipping mode, as intended to protect the drive train.
In that case, and if slippage occurs during machine opera-
tion, then the torque setting should be checked;
• Every 3 Months
And the torque specification reset per the following instruc-
tions.
Diagnostics
A torque clutch with INCORRECT torque setting may
develop the following symptoms;
• Machine does not drive straight.
NOTE: Machine pulling to one side can also be the result of
low battery voltage. Be sure and check battery volt-
age before clutch maintenance begins.
• There is gray dust accumulating around the drive
motor(s) due to excessive clutch wear.
5/8”
Note* Do not forget to replace
shim(s), .005”min. Gap is
critical between retaining
washer and wheel hub.