Snorkel TB126J CE - Manual (Page 63)

Chapter 11 – Troubleshooting
TB126J – 0192117EE 59
Symptom Possible Cause Corrective Action
Light in emergency stop button is
illuminated and engine shuts off.
High engine temperature. Let the engine cool. Do not restart
the engine until the cause of over-
heating has been corrected.
Low oil pressure. Do not restart the engine until the
cause of low oil pressure has been
corrected. The engine can be re-
started with low oil pressure, but it
will only run a few seconds before
it shuts off again.
Horn is sounding intermittently and
the overload light is flashing.
The load in the platform is greater
than the rated capacity.
Remove load from the platform until
the alarms stop.
Horn is sounding constantly and the
overload light is on.
The platform overload system is in
error mode.
Remove load until at or below rated
capacity. Cycle machine power off,
then on. If alarm continues, system
may need recalibration.
Platform overload sense system
does not work while operating the
upper controls.
Drive/boom selector switch is in the
drive position and the main boom is
below horizontal.
Normal operation. The platform
overload system is inactive while
driving with the booms in the stowed
position to prevent accidental acti-
vation due to rough terrain.
System needs calibration. Refer the problem to a qualified
service technician.
Boom functions do not immediately
return when switching from drive
to boom. There is a delay in boom
functions after switching the drive/
boom switch to the boom position
after driving the machine with the
boom below horizontal.
Platform overload system delay. Normal operation. The system in-
cludes a 5 second delay to eliminate
rapid stop and restart of movements
if the overload system trips during
operation.
All functions stop working. Low fluid level in reservoir. Check fluid level. Add correct type
of fluid if necessary.
Engine or pump failure. Manually stow the machine using
the emergency power system or the
emergency lowering knob.
Circuit breaker is tripped. Push circuit breaker button in to
reset.
Electrical system malfunction. Manually lower the boom using the
emergency lowering knob.
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.