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GROUP 2 OPERATIONAL CHECKS AND TROUBLESHOOTING
1. OPERATIONAL CHECKS
CHECK ITEM
1)
Check visually for deformation, cracks or
(1)
damage of rod.
Load maximum load, set mast vertical and
(2)
raise 1m from ground. Wait for 10
minutes
and
drift(amount forks move down and amount
mast tilts forward).
H
H
ydraulic drift
- Down(Downward movement of forks)
: Within 100mm(3.9in)
If the hydraulic drift is more than the
specified value, replace the control valve
or cylinder packing.
2)
HYDRAULIC OIL
(1)
Measure oil level using dipstick, and refill
oil if necessary.
(2)
Before changing hydraulic oil, take out and
clean strainer which is assembled with
flange after loosening the bolts and
replace the element of the return filter if
necessary. (Change interval of the return
filter : 2000 hours)
MANIFOLD ASSY
3)
(1)
Raise forks to maximum height and
measure oil pressure.
Check that oil pressure is 150kgf/cm
measure
hydraulic
2
.
(2130psi)
6-9
10BOP7HS16
10BOP7OM127
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