FUNCTION
1. Lifting and
lowering
Lift and lower a light
load.
Abnormal difficulties in
lifting or lowering.
2. Brake
Confirm that none of the
problems listed below occur
during lifting and lowering:
-Lifting impossible.
-Load falls when the oper-
ator removes his hands.
-Load fall during unwinding.
-Load slips down slowly.
J
Disassemble and check.
t
Split
pin [36]
Disassemble
and
service.
Disassemble and
service.
Wheel stopper [34]
Snap ring [28]
Wheel
stopper
pin [35]
U nut [25]
Pawl spring
[26]
Pawl pin [24]
"-
Socket
bolt [22]
13
I
Item
I
Inspection Method
I
Discard Limit/Criteria
I
Measures
j
HOOK YOKE
Top set (1,44,66)
Bottom set (4,56,
75) Joint of
Measure hole diameter
Deformation not permitted
I
Replace the part.
upperllower
of joint area in two
(if each measured value
fixtures with top
directions at right
differs more than pin (3)
pin (3) and chain
angle.
0.5mm (.020 in.), it is not a
pin (7,46).
circle).
