Upright TL33 - Page 41

TL33 Work Platform 5-3
Troubleshooting
SectIon
5.1
TROUBLE
PROBABLE CAUSE REMEDY
Machine will not
slew when
booms are
elevated
(contd...).
7. Oil seals in slew
motor are
damaged.
8. Faulty function
select switch.
Check and replace if
necessary.
Replace switch.
Platform will not
lower.
1. Faulty Down Valve
Coil.
2. Faulty function
select switch.
3. Faulty Controller
4. Down Valve stuck.
Test Down Valve Coil.
If proper voltage is
present and coil is not
magnetised - Replace
Replace switch.
Replace if required.
Check and see if spool
is stuck. - Replace if
necessary.
Brakes
overheating
Brake shoes adjusted
too tight, wheels
difficult to rotate.
Reset brakes according
to reset procedure.
Trailer fails to
auto-reverse
Hitch incorrectly
adjusted.
Follow adjustment
procedure.
Handbrake not
working
efficiently.
Brake shoes worn
or
handbrake out of
adjustment.
Remove hubs, clean
brakes and drums,
replace brake shoes.
Adjust handbrake as
per section 4-10 in
maintenance section.
Brakes snatching Damper failure in
coupling.
Fit exchange coupling.
Brakes remaining
on after
handbrake
release.
Cable linkage
incorrectly
adjusted/sticking.
Remove linkages,
cables and rods. Clean
and refit. Re-adjust
linkage system.
Trailer failing to
tow easily
(Resistance)
Brake shoes adjusted
to tight, wheels difficult
to rotate.
Reset brakes according
to reset procedure in
chapter 4 of
maintenance section.