Snorkel SP22 - Manual (Page 65)

Chapter 13. Troubleshooting
The chart below lists situations where machine operation may be interrupted. If the problem cannot be
corrected with the action listed, stow the machine and remove it from service. Repairs must be made by
qualified maintenance personnel.
■ Troubleshooting Chart
Symptom Possible Cause Corrective Action
All Functions stop
working. Low fluid level in reservoir.
Circuit breaker on the lower control
panel has tripped.
Motor or pump failure.
Electrical system malfunction.
Check fluid level. Add correct type of
fluid if necessary.
Wait one minute for circuit breaker to
reset.
Manually stow the machine using
emergency power system.
Manually stow the machine using
emergency power system.
Lower controls do not
work. Ground operation not selected.
Battery disconnect switch turned off.
Emergency stop button at lower
controls is pushed inward to the off
position.
Hold ground operation button in while
operating control buttons.
Place switch in the on position.
Pull emergency stop button outward to
the on position.
Upper controls do not
work. Battery disconnect switch turned off.
Emergency stop button at upper
controls is pushed inward to the off
position.
Platform foot switch not engaged.
Place switch in the on position.
Pull the emergency stop button outward
to the on position.
Step down on platform foot switch while
operating joysticks.
Booms drift down. Hydraulic system malfunction. Stow the machine and do not operate
until repairs are made.
Drive functions do not
work. Load capacity exceeded.
Machine on too steep a grade.
Brakes disengaged.
Low hydraulic system pressure.
Remove load from platform. Refer to
platform capacity placard for maximum
capacity.
Lower the booms and drive to a level
surface.
Turn drive wheel plates around so
nipples point outward.
Stow the machine and do not operate
until repairs are made.
Only slow drive speed
works. High range not selected.
Lower boom is raised out of its rest.
Press range button to engage high
speed.
Completely lower the lower boom.
Wheels will not turn when
winching. Brakes engaged. Turn drive wheel plates around so
nipples point inward.
Brakes do not work. Brakes disengaged. Turn drive wheel plates around so
nipples point outward.
Electrical outlet does not
work. Power supply not plugged in.
GFCI is tripped.
Plug a source of power into the
power-input connector at rear of chassis.
Push reset button on outlet.
SP20/SP22 – 11890A page 13 - 1