6-15
HYDRAULIC OIL
Using dipstick, measure oil level, and oil if
necessary.
When changing hydraulic oil, clean
suction strainer(screwed into outlet port
pipe) and line filter(screwed into inlet
pipe).
GROUP 2 OPERATIONAL CHECKS AND TROUBLESHOOTING
1. OPERATIONAL CHECKS
CHECK ITEM
Check visually for deformation, cracks or
damage of rod.
Load maximum load, set mast vertical and
raise 1m from ground. Wait for 10
minutes and measure hydraulic
drift(amount forks move down and amount
mast tilts forward).
·
HHydraulic drift
- Down(Downward movement of forks)
: Within 100
mm
(3.9
in
)
- Forward(Extension of tilt cylinder)
: Within 5
。
If the hydraulic drift is more than the
specified value, replace the control valve
or cylinder packing.
Check that clearance between tilt cylinder
bushing and mounting pin is within
standard range.
(1)
(2)
(3)
1)
2)
Standard Under 0.6 (0.02)
mm
(
in
)
(1)
(2)
CONTROL VALVE
Raise forks to maximum height and
measure oil pressure.
Check that oil pressure is 185
kgf/cm
2
.
(2683
psi
)
50DS7EHS16
50DS7EHS17
D35ATA26
3)
(1)
To Next Page
Loading...
Need help?
General
