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The troubleshooting chart may be used to locate and
eliminate situations where machine operation may be
interrupted. If the problem cannot be corrected with the
Troubleshooting Chart
Symptom
All functions stop working.
Platform will not raise or lower
from lower controls.
Platform will not raise or lower
from upper controls.
Platform will not raise and alarm
is sounding.
Platform will not raise, or raises
slower than normal.
Platform drifts down.
Platform will not lower.
Platform will not extend.
Drive functions don't work.
S3215L/S3215E/S3219E/S3220E/S3226E/S4726E/S4732E – 1500834
Chapter 12 – Troubleshooting
Possible Cause
Motor or pump failure.
Low fluid level in reservoir.
Batteries discharged.
Electrical system malfunction.
Control select/ground operation
switch is in the upper control or the
off position.
Battery disconnect is turned off.
Emergency stop button is pushed
inward to the off position.
Emergency lowering lever is not
properly disengaged.
Drive/lift selector is in the drive posi-
tion.
Emergency lowering lever not
properly disengaged.
Machine is not on a level surface.
Emergency lowering lever not
properly disengaged.
Platform capacity has been
exceeded.
Low battery charge.
Emergency lowering lever not
properly disengaged.
Hydraulic system malfunction.
Safety prop in place.
Extension handle is not fully engaged,
releasing the lock.
Drive/lift selector is in the lift position.
Machine is not on a level surface or
too steep a grade.
Free-wheeling valve is open.
Load capacity exceeded.
Low hydraulic system pressure.
action listed, stow the machine and remove it from ser-
vice. Repairs must be made by qualified maintenance
personnel.
Corrective Action
Manually stow the machine using the
emergency lowering lever.
Check hydraulic fluid level. Add correct
type of fluid if necessary.
Recharge batteries.
Stow the machine and do not operate until
repairs are made.
Place the switch in the lower control
position.
Place the switch in the on position.
Pull the emergency stop button outward
to the on position.
Make sure the lever returns to the normal
operating position.
Place switch in the lift position.
Make sure the lever returns to the normal
operating position.
Lower the platform and drive to a level
surface.
Make sure the lever returns to the normal
operating position.
Remove load from platform. Refer to
platform capacity placard for maximum
capacity.
Check the battery charge indicator and
recharge the batteries if necessary.
Make sure the lever returns to the normal
operating position.
Stow the machine and do not operate until
repairs are made.
Stow the safety prop.
Squeeze both extension handles firmly to
fully disengaged the locks, before extend-
ing the platform.
Place the switch in the drive position.
Lower the platform and drive to a level
surface.
Fully close the free-wheeling valve.
Remove load from platform. Refer to
platform capacity placard for maximum
capacity.
Stow the machine and do not operate until
repairs are made.
57
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