Snorkel TB85J CE - Manual (Page 63)

Chapter 11 – Troubleshooting
TB80/TB85J – 0112622EE 59
Symptom
Constant tone alarm sounds
while the engine is running.
Constant tone alarm sounds and
engine shuts off.
Horn is sounding intermittently
and the overload light is flashing.
Horn is sounding constantly and
the overload light is on.
Platform overload sense system
does not work while operating
the upper controls.
Boom functions do not immedi-
ately 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 driv-
ing the machine with the boom
below horizontal.
All functions stop working.
Possible Cause
No alternator current/broken fan belt.
High engine temperature.
Low oil pressure.
The load in the platform is greater
than the rated capacity.
The platform overload system has
an error.
Drive/boom selector switch is in the
drive position and the main boom is
below horizontal.
System needs calibration.
Platform overload system delay.
Low fluid level in reservoir.
Engine or pump failure.
Circuit breaker is tripped.
Electrical system malfunction.
Platform overload sensor is tripped.
Corrective Action
Turn the engine off. Do not restart the
engine until the cause of no alterna-
tor current has been corrected or the
fan belt is replaced.
Let the engine cool. Do not restart the
engine until the cause of overheating
has been corrected.
Do not restart the engine until the
cause of low oil pressure has been
corrected. The engine can be restarted
with low oil pressure, but it will only
run a few seconds before it shuts off
again.
Remove load from the platform until
the alarms stop.
Remove load until at or below rated
capacity. Cycle machine power off,
then on. If alarm continues, system
may need recalibration.
Normal operation. The platform over-
load system is inactive while driving
with the boom below horizontal to pre-
vent accidental activation due to rough
terrain.
Refer the problem to a qualified ser-
vice technician.
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.
Check fluid level. Add correct type of
fluid if necessary.
Manually stow the machine using the
emergency power system or the
emergency lowering knob.
Push circuit breaker button in to reset.
Manually lower the boom using the
emergency lowering knob.
If horn is sounding and red overload
light is on or blinking, remove weight
from the platform until the load is at
or below rated capacity.