Troubleshooting Guide - Snorkel TM12 Service Manual

Troubleshooting
4.3 T
ROUBLESHOOTING
TROUBLE PROBABLE CAUSE
All functions 1. Blown electric motor fuse Check electric motor fuse. Replace if blown.
inoperable,
electric motor 2. Faulty battery
does not start. charger.
3. Faulty battery(ies).
4. Loose or broken
battery lead.
5. Emergency Stop
switch(es) failed open.
All functions 1. Oil level in hydraulic
inoperable. reservoir is low.
Electric motor
starts when 2. Faulty hydraulic
control is pump.
actuated.
Platform will not 1. Emergency
elevate or Lowering valve
elevates slowly. open.
2. Platform
overloaded.
3. Faulty controller at
upper controls.
4. Battery level low.
Platform drifts 1. Emergency
down after being lowering valve
elevated open.
2. Leaking piston
seals in lift
cylinders
G
UIDE
POSSIBLE SOLUTION
Check the voltage output of the battery charger. If less than 24 VDC,
replace battery charger.
After completely charging batteries, test each battery. Replace as
Check continuity of all battery and motor leads. Replace if necessary.
With emergency stop switch in the ON position, check continuity
Check hydraulic fluid level, top up as required.
Check pressure and delivery of the hydraulic pump. Replace if
necessary.
Close emergency
down valve.
Observe maximum load rating. (see Operation section of this
manual)
Check functionality of controller. Replace if faulty.
Check Battery Voltage. Charge if necessary.
Ensure that emergency lowering valve is completely closed. Replace
if necessary.
Check for leakage at cylinder return line, replace seals if necessary.

4.3 - Troubleshooting Guide

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