24
Item Method Discard limit or criteria Action
Top Hook Measure the diameter of the
hole of the Top Yoke to insert
the Top Pin, using calipers.
When the hole is an oval
hole, measure the maximum
diameter of the oval hole.
Replace the Top Hook
Set.
Bottom
Hook
Check the abrasion at the
worn position of the Chain of
Bottom Hook (indicated with
an arrow).
• Load Chain should be free of excessive
abrasion and deformation at the worn position
of the chain on the Bottom Yoke side.
• Perform measuring control of the chain
diameter, referring to the Frequent Inspection
(Page 21). Load Chain should not beyond the
limit of chain diameter.
• A point caliper is needed to measure the
abrasion (of chain diameter).
• For CX005, the diameter (d) of the chain pin
hole should not excess the limit below.
Chain pin hole diameter (mm)
Standard 10.3
Limit 10.8
Replace the Bottom Hook
Complete Set.
d
Hole to insert Top Pin
Top Yoke
Periodic Inspection
Disassemble the Chain Hoist and check each part in
detail.
When this inspection is completed, reassemble
the Chain Hoist correctly in accordance with the
Disassembly/reassembly Manual.
Check the following items in addition to the frequent inspection items.
Perform disassembly/reassembly work correctly, referring to the
separate Disassembly/reassembly Manual.
NOTE
Rated load (t)
Hole diameter (d) mm
For Top Pin
Standard Limit
0.25 8.3 8.8
0.5
10.3 10.8
CX003
CX005
d
Worn position