Snorkel TB66J CE - Manual (Page 58)

Chapter 11 – Troubleshooting
54 TB60/66J – 0084030EE
Symptom Possible Cause Corrective Action
Lower controls do
not work.
Battery disconnect switch turned
off.
Place switch in the on position.
Emergency stop switch at lower
controls is pushed in to the off posi-
tion.
Pull the emergency stop button out
to the on position.
Control selector switch is in the plat-
form position.
Place the switch in the lower control
position.
Ground operation switch not held in
the on position.
Hold the ground operation switch in
the on position while operating the
control toggle switches.
Platform overload sensor is
tripped.
If horn is sounding and red overload
light is on or blinking, remove weight
from the platform until the load is at
or below rated capacity.
Upper controls do not work. Battery disconnect switch turned
off.
Place switch in the on position.
Emergency stop switch at lower and
upper controls is in the off position.
Place the emergency stop in the on
position.
Control selector switch at lower con-
trols is in the lower control position.
Place switch in the upper control
position.
Platform foot switch not engaged. Step down on platform foot switch
while operating controls.
Platform overload sensor is
tripped.
If horn is sounding and red overload
light is on or blinking, remove weight
from the platform until the load is at
or below rated capacity.
Boom functions do not work. The drive/boom switch is in the drive
position.
Place the switch in the boom posi-
tion.
Boom and drive functions seem
sluggish.
Hydraulic oil is cold and thick. Use cold weather hydraulic oil as
recommended for weather condi-
tions. Warm oil before operating the
machine.
Boom jerks while it is extended. Wire ropes are loose. Refer the problem to a qualified
service technician.
Tip boom extend/retract, jib, and
platform rotate functions do not
work from the upper controls.
Boom speed knob set too slow. Turn knob toward fast.
Booms drift down. The emergency lowering valve is
open.
Turn the emergency lowering knob
to close the valve.
Hydraulic system malfunction. Stow the machine and do not oper-
ate until repairs are made.