5-7
5
OVERALL MACHINE
TROUBLESHOOTING
2. Check the fuse
Check the fuse in the power supply circuit that oper-
ates the pilot solenoid valve.
3. Check the limit switch
Turn the limit switch on, by moving the lever stand to
the driving position.
Then check the voltage at the lever lock solenoid valve
with a tester.
If there is voltage, the switch works normally.
4. Check the lever lock solenoid valve
Check according to the following procedure.
a. Turn the starter switch to the ON position.
b. Lightly press down the protruding part on the sole-
noid valve.
c.
Move the lever stand to turn on the limit switch.
d. If you feel vibration under your fingers when the
spool is moved and the circuit is switched, the sole-
noid valve is normal.
5. Check the pilot relief valve
Measure the relief pressure of the pilot relief valve.
• If the measured value is within specifications, the
valve is normal.
“2. Service data, Performance criteria”
6. Check the pilot valve
“4. Disassembly and assembly, Pilot valve”
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