-5-
Function
Turn the selector
switch to the
UP/DOWN
position, pull the
load chain on
the hook side,
and operate the
handle.
The clicking sound when operating the handle
indicates normal condition.
Repair or
replace parts as
necessary
Hook
Check visually
No wear, deformation or damage, and the
swivels should rotate freely.
Replace
Hook latches
Check visually
No deformation or flaws.
Replace the part
Load chain
Check visually
No obvious rust or corrosion.
Lubrication must be on surface.
Oil the load chain,
replace the load
chain
Other
Check visually
No missing nuts and/or split pins.
No flaws or damage on the hoist surface.
No missing and/or twisted chain stopper.
Replace the parts
5.3 Periodic inspection
Periodic inspection shall be made at the interval shown below and should follow the given procedures.
NORMAL (Normal use): Six monthly inspection
HEAVY (Frequent use): Quarterly inspection
SEVERE (Excessively frequent use): Monthly inspection
Item
Method
Discard criteria
Remedy
1. Hook
assembly
1.1 Stretch and
wear
Measure
Replace
1.2 Flaw
Check visually
Should be free from significant rust, weld
splatter, deep nicks or gouges.
Replace
1.3 Rotate
Check visually
and function
Should rotate freely with no roughness.
Replace
1.4 Hook yoke
Check visually
and function
Should not be slack or be missing rivets, nuts
or bolts.
Replace
1.5 Hook latch
Check visually
Proper positioning and smooth operation.
Replace
Capacity (t)
A* (mm)
B (mm)
C (mm)
Normal
Standard
Discard
Standard
Discard
0.75
30.0
13.0
≤12.4
21.5
≤20.3
1.5
36.0
17.0
≤16.2
28.8
≤27.3
3
40.0
25.0
≤23.8
43.8
≤41.6
6
50.0
32.0
≤30.4
52.5
≤49.9
9
64.0
40.0
≤38.0
60.4
≤57.4
Measure dimension A when new
*These values are nominal since the dimension is not
controlled to a tolerance. The A dimension should be
measured when the hook is new. The A dimension should
not be greater than 1.05 times that measured and recorded
at the time of purchase.
