Snorkel TB50 - Manual (Page 75)

Chapter 11 – Troubleshooting
TB42/TB50 – 0074923 71
Symptom Possible Cause Corrective Action
Engine starts from the upper con-
trols but no boom functions work
– machines with AC generator op-
tion only.
The AC generator switch is in the
generator position.
Place the switch in the machine posi-
tion to operate machine functions.
Engine dies when the control selector
switch at the lower controls is placed
in the upper control position.
Upper controls are not set-up prop-
erly.
At the upper controls, pull the emer-
gency stop button upward and turn
the anti-restart master switch on.
Constant tone alarm sounds while
the engine is running.
High engine temperature. Lower the platform and turn the
engine off and let it cool. Do not
restart the engine until the cause of
overheating has been corrected.
Low oil pressure. Lower the platform and turn the
engine off. Do not restart the engine
until the cause of low oil pressure
has been corrected.
No alternator current/broken fan
belt.
Turn the engine off. Do not restart
the engine until the cause of no al-
ternator current has been corrected
or the fan belt is replaced.
Constant tone alarm sounds 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.
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.
Lower controls do not work. Battery disconnect switch turned off. Place switch in the on position.
Emergency stop switch at lower con-
trols is pushed in to the off position.
Pull the emergency stop button
outward.
Control selector switch is in the upper
control position.
Place the switch in the lower control
position.
Ground operation switch not held in
the on position.
Hold the ground operation switch in
the on position while operating the
control toggle switches.
Upper controls do not work. Battery disconnect switch turned off. Place switch in the on position.
Emergency stop button at lower and
upper controls is in the off position.
Pull the emergency stop buttons
outward.
Control selector switch at lower con-
trols is in the lower control position.
Place switch in the upper control
position.
Platform foot switch not engaged. Step down on platform foot switch
while operating controls.