®
R&M Materials Handling, Inc
LoadMate®
Chain Hoist
Springfield, Ohio USA
LM16-20-25 Manual
: 800 955-9967
April 2005
www.rmhoist.com
April 1, 2005
25
LM16-20-25-I&M
MANUAL-2005-0
5.13 Hooks
Check hooks for deformation or cracks. Hooks must be replaced if throat opening has increased by more
than 15%, or if throat opening has more than 10-degree twist from plane of straight hook.
FIGURE 5.10
Due to many types and sizes of hooks that can be furnished and/or specified by the user / owner, it is
recommended that user / owner measure the actual throat opening of hook as originally furnished. See
Figure 5.10. Record the throat dimension on above sketch. Retain as a permanent record. This record
can then be used for determining when hook must be replaced due to deformation or excessive throat
opening.
Abuse or overloading of hoist is indicated when any hook is twisted or has a throat opening in
excess of normal. Other load bearing components SHALL be checked for damage.
Safety latches SHALL be replaced if missing, bent, or broken.
A safety latch SHALL function properly at all times.
Repairing hooks by welding or reshaping is strictly forbidden.
5.14 Hook
Inspection
The wear on the top hook and the load hook shall be checked routinely. Measure the throat opening
(dimension
a
2). If the throat opening exceeds the maximum opening allowed (1.15 x a2), replace the hook.
Damaged safety latches shall be replaced immediately.
Maximum throat opening allowed:
