913218/CP0307 50 PRINTED IN U.S.A.
CHECKING PERSONNEL WORK PLAT-
FORM (PWP) SYSTEM (if used)
Machine Position
The following must be performed before begining the
PWP System checking procedures:
1. Machine on level surface,
2. Boom fully lowered,
3. Frame level,
4. Transmission in “N” (Neutral),
5. Parking brake switch “OFF,”
6. PWP System switch “OFF,”
7. Remote switch plugged in and “ENGAGED.”
Activation Tests
To test the PWP System activation logic:
1. Start the engine and press the PWP rocker switch
“ON.”
z The PWP System lamp in the switch should be
flashing.
2. Apply the service brakes.
z The PWP switch lamp should be illuminated
continuously after three seconds, indicating that
the PWP System has been activated.
z The parking brake should engage, as indicated
by the lamp on the parking brake switch illumi-
nating.
z The carriage tilt and auxiliary functions, should
now be disabled. The hydraulic joystick should
continue to function normally for boom
raise/lower and extend/retract.
CHECKING WHEEL NUT TORQUE
On new machines, or any time a wheel has been
removed, re-torque until 450 ft.-lbs. (610 Nm) is main-
tained.
CHECKING INSTRUMENTS OPERATION
Allow the engine to warm up for about five minutes
before beginning operation. Indicator lamps should be
OFF and gauges should register normal readings. Tilt
the frame from side to side with the frame leveling
control and note the angle indicator movement.
CHECKING GENERAL MACHINE
OPERATION AND CONDITION
Are any decals missing or damaged? Are all guards,
shields and covers in place? Do all controls function
smoothly and properly? Are there any abnormal vibra-
tions or noises? Are any hose or fitting connections
leaking? Is the engine exhaust color normal?
WARNING
Manufacturers of push-pull control cables
advise taking the following operation and
maintenance precautions:
Do not adjust the control cable with the engine
running.
A gradual or sudden increase in the no-load
friction (cable disconnected at both ends) of a
control cable is an indication of an impending
or present performance problem. The control
cable should be replaced.
A gradual or sudden decrease in the useable
travel is a indication of an impending or pre-
sent performance problem. The cable should
be replaced.
Control cables that have moisture inside of
them and/or have frozen should be replaced.
Do not apply heat to thaw or dry control
cables.
Control cable are lubricated for the life of the
control cable. Do not remove the seals or
lubricate the control cable.
WARNING
If the PWP System fails to operate properly
during any of the PWP System checks, DO
NOT USE the machine until the cause has
been corrected. Contact your dealer (or Gehl
Company) for service information and parts.
Control cables are designed to be non-
repairable. Do not attempt to repair control
cables.
Failure to heed could result in death or seri-
ous injury.
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