21
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Load Chain
Item Check method Criteria When failed
Elongation of
Pitch
• Check visually • No apparent elongation Refer to Load Chain
(P69) of Chapter 2,
Frequent inspection.
Abrasion
of Wire
Diameter
• Check visually • No apparent abrasion Refer to Load Chain
(P69) of Chapter 2,
Frequent inspection.
Deformation,
Flaw,
Entanglement
• Check visually
Flaw
Crack
• Check visually for no foreign
matter such as attached
sputter.
• No deep notch
• No deformation such as twist
• No attached sputter
• No entanglement
• No crack
Replace the Load
Chain.
Rust,
Corrosion
• Check visually • No apparent rust and corrosion Replace the Load
Chain.
Twist
• Check visually • No capsized link at Bottom Hook of double
type Load Chain
Untwist the Load
Chain.
Lubrication
• Check visually • To be oiled adequately Apply oil.
Mark
• Check visually • Check the mark pitch and the indication. (Refer
to “Checking the Marks" (P17).)
Replace the Load
Chain.
How to Use Daily Inspection of Electric Chain Hoist (Hook Suspended Type)
1
(to be continued)