2 hook inspection – R&M Materials Handling ELECTRIC CHAIN HOISTS LoadMate Chain Hoist LM 10 Stepless User Manual
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LM10 STEPLESS I&M MANUAL/EN/11.30.2010
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7.11.2 Hook Inspection
The wear on the top hook and the load hook SHALL be checked routinely. Measure the throat
opening (dimension
a
2 - FIGURE 23). If the throat opening exceeds the maximum opening allowed,
replace the hook. Damaged safety latches shall be replaced immediately.
Figure 23. Hook Dimensions
LOAD
CAPACITY
(LBS)
TEST
LOAD
FALLS
MINIMUM
FAILURE
LOAD
CLASS
1389
2778
1
8752
025T
2205
4409
1
11023
025T
2756
5512
2
17361
05T
4409
8818
2
22046
05T
HOOK DIMENSIONS – INCHES
ØM
Øa1
a2
a3
b1
b2
e1
h1
h2
t1
t2
0.630
1.417
1.024
1.614
0.866
0.748
3.780
1.102
0.945
1.496
0.512
0.630
1.417
1.024
1.614
0.866
0.748
3.780
1.102
0.945
1.496
0.512
0.787
1.693
1.339
1.929
1.142
0.945
4.134
1.457
1.221
1.496
0.551
0.787
1.693
1.339
1.929
1.142
0.945
4.134
1.457
1.221
1.496
0.551
Initial Dimension – a2
Max. Allowed Dimension
Mark: ISO 2766
1.024 inches
1.178 inches maximum
DIN Model Number: 15401
1.339 inches
1.540 inches maximum
DIN 15400 Class: T
DIN 15401 Material: 35 CD 4