Item
Method
Discard criteria
Remedy
8. Body
8.1 Top hook pin
hole on the side
plate
Measure dimension D.
Replace
8.2 Top hook pin
Measure
Measure the external
diameter of the top
hook pin.
Replace
8.3 Guide plate
Check visually
Should be free from wear and deformation.
Replace
8.4 Chain stopper
ring
Check visually
Should be free from wear and deformation.
Replace
9. Function
9.1 Lifting and
lowering
Lift and lower a
light load
No abnormal difficulty in lifting and lowering.
Overhaul and
service
9.2 Brake
Lift and lower a
light load
Confirm that none of the problems listed below
occur during lifting and lowering:
1. Lifting impossible.
2. Load slips down slowly.
3. Load falls when the operator releases the
hand lever.
Overhaul and
service
0.75t
D≤9.5
1.5t
D≤12.4
3t ~ 9t
D≤16.1
Capacity (t)
D1 (Standard)
D (Discard)
0.75
10.2
≤10.7
1.5
13.2
≤13.7
3~9
17.2
≤17.7
-8-
