Hyster F007 - Troubleshooting

5000 SRM 969 Troubleshooting
Troubleshooting
PROBLEM POSSIBLE CAUSE PROCEDURE OR ACTION
No attachment functions or
no attachment functions in
one direction.
Check lift truck hydraulic supply
valve for correct operation.
Repair supply valve.
Low main hydraulic pressure at at-
tachment main relief valve.
Adjust pressure at main relief valve
to 140 bar (2031 psi).
Dirt in relief valve cartridge. Clean or replace relief valve.
No electrical power at solenoids of
both lift truck and chassis.
Check for proper voltage at solenoids.
If voltage is present, replace solenoid.
If voltage is not present, check appro-
priate switch.
Low attachment response
time.
Low hydraulic pressure at attach-
ment main relief valve.
Adjust pressure at main relief valve
to 140 bar (2031 psi).
Both exte
nsion beams will
not exten
d.
Low hydra
ulic pressure at attach-
ment main
relief valve.
Adjust pr
essure at main relief valve
to 140 bar
(2031 psi).
No electr
ical power at solenoids of
both lift
truck and chassis.
Check for
proper voltage at solenoid.
If voltag
e is present, replace solenoid.
If voltag
e is not present, check appro-
priate s
witch.
One extension beam will not
extend.
No electrical power at solenoid
mounted on rear of extension cylin-
der.
Check for proper voltage at solenoids.
If voltage is present, replace solenoid.
If voltage is not present, check appro-
priate switch.
Shock relief pressure is too low. Set relief valve pressure to 80 bar
(1160 psi).
Both extension beams will
not retract.
Low hydraulic pressure at attach-
ment main relief valve.
Adjust pressure at main relief valve
to 140 bar (2031 psi).
No electrical power at solenoid
valves on both lift truck and chassis.
Check for proper voltage at solenoids.
If voltage is present, replace solenoid.
If voltage is not present, check appro-
priate switch.
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