Clark GEX20 - Page 37

Group PS, Periodic Service
SM 765, Nov ’06 Maintenance Schedule • PS-1-5
TASKS
1st 50
Hours
Every
50-250 Hours
Every
450- 500 Hours
(or 3 months)
Every
900- 1000 Hours
(or 6 months)
Every
2000 Hours
(or 1 year)
Group 25/26 - Steer Axle and Lines
Operation - check
.
Power steering relief pressure - check
.
Steer axle mounting - inspect
.
Steer wheel and trunnion bearings -
check
.
Steer wheel and trunnion bearings -
lubricate/adjust
.
Steering cylinder seals - check leakage
.
Steering linkage - lubricate
.
Group 29/30 - Hydraulic Lift System
Hydraulic fluid level/condition -
check/sample
.
Hydraulic fluid change - drain/fill .
Hydraulic filler screen - clean .
Hydraulic fluid filter - replace
..
Hydraulic tank breather - clean/replace .. .
Control valve linkage - check/clean
Hydraulic system relief pressure - test/
adjust
.
Group 32 - Tllt Cylinders
Tilt cylinder adjustment - check/adjust
.
Tilt cylinder drift - test .
Tilt cylinder mounting - check/tighten .
Tilt cylinder rod ends - check/tighten/
lubricate
.
Tilt cylinder rod/seals - check for leaks .
Group 34 - Upright, Lift Cylinders, Carriage, Forks
Operation - check .
Carriage and lift chain - lubricate .
Carriage chain condition - inspect/
adjust
.
Forks, latches, stop pin - inspect/check
wear
.
Lift chain condition - inspect/adjust
.
Load backrest .
Upright cylinder/mounting - inspect/
tighten
.
Upright lift cylinder downdrift - test .
Upright rollers - check .
Upright trunnion bolts - tighten .