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TL49J
Audible alarm activated when outriggers are not
moving
Check the level and limit switches on the
outriggers
Slew will not operate in either direction with DC
motor running
Check that the machine is on level ground.
Slew will not operate if the machine is out of
level.
Check for obstructions.
Ensure the slew has not reached the slew
stop. 2002 machine specification will only
slew +/- 355 degrees from the stowed position.
Earlier machines would slew +/- 450 degrees
from the stowed position.
Loss of movements on the mains/engine pow-
ered machines.
Check the dump valve. To enable movement,
the dump valve must pull in to stop oil going to
the tank.
Check the oil pressure.
Check the pump and coupling.
Mains motor/engine stalls when trying to
operate the machine
Check relief valve setting.
Mains motor stalls when operating the machine
Check for voltage drop.
Use shorter extension lead.
If the voltage reading on the motor terminals is
below 10% of the motor rating when it is run-
ning under load, the motor will fail. Do not run
the machine.
RCD on mains powered machines keeps
tripping
Check for water ingress on terminal boxes.
Check motor start and run capacitors.
0.5A fuse on control circuit keeps popping
(Mains powered machines)
Check coil on selector valve and dump valve
for cracks/signs of water damage.
Burnt out mains isolating transformer (Mains
powered machines)
Check fuse.
Check coil on selector valve and dump valve
for cracks/signs of water damage.
TROUBLESHOOTING
Table 3-3
: Fault finding list and possible solutions.
