XLT-1571DC
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. Repair
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. Recharge or replace the battery.
5. When two parts of battery
connector plug are mated to-
gether, the motor runs with-
out
UP switch being selected.
a. Short in electrical system.
b. Motor start relay is stuck in “on”
position.
a. Repair or replace any loose or broken
wires.
b. Replace defective motor start relay.
6. 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 battery charge drops below 9 volts.
