Snorkel T85J - Manual (Page 64)

Chapter 11 – Troubleshooting
60 TB80/TB85J Fixed Axle – 0112792
Symptom
Lower controls do
not work.
Upper controls do
not work.
Boom and drive functions seem
sluggish.
Boom jerks while it is extended.
Turntable and main boom functions
do not work from the upper con-
trols.
Booms drift down.
Drive functions do
not work.
Possible Cause
Battery disconnect switch turned off.
Emergency stop button at lower con-
trols is pushed in to the off position.
Controls switch is in the platform po-
sition.
Ground operation switch not held in
the on position.
Battery disconnect switch turned off.
Emergency stop button at lower and
upper controls is in the off position.
Control selector switch at lower con-
trols is in the ground position.
Platform foot switch not engaged.
Hydraulic oil is cold and thick.
Wire ropes are loose.
Boom speed knob set too slow.
The emergency lowering valve is
open.
Hydraulic system malfunction.
Load capacity exceeded.
Machine on too steep a grade.
Drive hubs are disengaged.
Low hydraulic system pressure.
Corrective Action
Place switch in the on position.
Pull the emergency stop button out-
ward.
Place the switch in the ground posi-
tion.
Hold the ground operation switch in
the on position while operating the
control toggle switches.
Place switch in the on position.
Pull the emergency stop buttons out-
ward.
Place switch in the upper controls
position.
Step down on platform foot switch
while operating controls.
Use cold weather hydraulic oil as rec-
ommended for weather conditions.
Warm oil before operating the ma-
chine.
Refer the problem to a qualified ser-
vice technician.
Turn knob toward fast.
Turn the emergency lowering knob
to close the valve.
Stow the machine and do not oper-
ate until repairs are made.
Remove load from platform. Refer to
platform capacity placard for maxi-
mum capacity.
Lower the booms and drive to a level
surface.
Turn drive wheel disconnect plates
around so nipples point outward.
Stow the machine and do not oper-
ate until repairs are made.