Snorkel SB126J - Manual (Page 66)

Chapter 11 – Troubleshooting
60 SB126J – 0192278
Symptom Possible Cause Corrective Action
Lower controls do
not work.
Battery disconnect switch turned
off.
Place switch in the on position.
Emergency stop button at lower
controls is pushed in to the off
position.
Pull the emergency stop button
outward.
Controls selector switch is in the
platform position.
Place the switch in the lower con-
trols 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.
The horn is sounding and red over-
load light is blinking.
Remove weight from the platform
until the load is at or below rated
capacity.
Platform overload sensor is in error
mode. The horn is sounding and red
overload light is constantly on.
Remove weight from the platform
until the load is at or below rated
capacity. Cycle machine power off,
then on. If alarm, continues, system
may need recalibration.
Upper controls do not work. Battery disconnect switch turned
off.
Place switch in the on position.
Emergency stop button at lower
and upper controls is in the off
position.
Pull the emergency stop buttons
outward.
Control selector switch at lower
controls is in the lower controls
position.
Place switch in the upper controls
position.
Platform foot switch not engaged. Step down on platform foot switch
while operating controls.
Platform overload sensor is tripped.
The horn is sounding and red over-
load light is blinking.
Remove weight from the platform
until the load is at or below rated
capacity.
Platform overload sensor is in error
mode. The horn is sounding and red
overload light is constantly on.
Remove weight from the platform
until the load is at or below rated
capacity. Cycle machine power off,
then on. If alarm, continues, system
may need recalibration.
Boom functions do not work. The drive/boom switch is in the drive
position.
Place the switch in the boom posi-
tion.
Boom will not extend or raise above
horizontal.
Rear axles not properly extended. Extend the rear axles and properly
install the pin and lock.
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.
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.