XLT-1571AC
4-16
Table 4-3. Troubleshooting Chart, Continued
Problem Cause Correction
4. Pump/motor will not run
when
UP is selected.
a.
EMERGENCY STOP button is activated
(pushed in).
b. Green
WHEEL UP/BASE SET button is
not lit.
c. Motor start relay is not activating.
d. Motor start relay is activating, but
motor does not run.
e. *Low voltage.
a. Turn
EMERGENCY STOP button coun-
terclockwise to de-activate.
b. Refer to Problem 1.
c. Check voltage at white wire on motor
start relay. If voltage, replace defec-
tive motor start relay. If no voltage,
check for loose or broken wire. Re-
pair or replace wire.
d. Check hydraulic gear pump for sei-
zure. If seized, replace pump. If not,
check motor. Motor may need re-
placement.
e. Check incoming power line.
5. Hydraulic cylinder leaks at
gland nut.
a. Loose gland nut.
b. Defective seals.
a. Tighten gland nut.
b. Replace seals in hydraulic cylinder.
Refer to Hydraulic Cylinder Repair,
in section 4-3.
*NOTE: Smart start solenoid will not engage if voltage is low.
