Chapter 11 – Troubleshooting
62 A46JRT – 0260996
Symptom
Engine will not start from
lower controls.
Engine will not start from
upper controls.
Engine starts from the upper
controls but no boom functions
work – machines with AC gen-
erator option only.
Engine dies when the controls
selector switch at the lower
controls is placed in the upper
control position.
Possible Cause
Switches are set wrong. The engine
will not crank.
The controls selector switch was left
in the on position for 30 seconds or
longer before turning it to start.
The main system circuit breaker on
the lower control panel has tripped.
The engine will not crank.
Switches are set wrong. The engine
will not crank.
Platform foot switch is activated.
The start switch was left in the on
position for 30 seconds or longer
before turning it to start.
The AC generator switch is in the
generator position.
Upper controls are not set-up prop-
erly.
Corrective Action
• Place the controls selector switch
in the lower control position for
10 seconds and then start the
engine.
Turn the switch back to off, then to
start within 30 seconds.
Push the main system circuit breaker
button back in. If the button pops back
out, refer the problem to a qualified
service technician.
Turn the battery disconnect switch on
and then at the lower controls:
• Turn the controls selector switch off.
• Pull the emergency stop button
outward.
• Place the controls selector switch
in the upper control position.
From the upper controls:
• Turn the start switch off.
• Pull the emergency stop button
outward.
• Place the start switch in the on
position for 5 seconds and the
then turn the switch to start.
Do not step on foot switch while start-
ing the engine.
Turn the start switch back to off, then
to start within 30 seconds.
Place the switch in the machine po-
sition to operate machine functions.
At the upper controls, pull the emer-
gency stop button upward and turn
the start switch on.
To Next Page
Loading...
