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(5) Side plate
deformation
(6) Suspension
shaft
deformation
and abrasion
(7) Movement of
joint fittings
(8) Side roller
wear
Check visually or
with slide calipers,
as necessary.
Check visually or
with slide calipers
as necessary.
Move electric chain
hoist back and forth
and right and left.
Check visually or
with slide calipers,
as necessary.
Move rollers by
hand.
No obvious deformation must be
evident.
NEVER use a suspension shaft
if bent.
NEVER use a suspension shaft
if its diameter is worn down 10% or
more.
Joint fittings move smoothly.
Conpact part of the side roller is
not worn to exceed limit
dimensions on the table shown
below.
Rollers rotate smoothly.
If damaged
obviously,
replace it with a
new side plate.
Replace with new
suspension
shaft.
If the movement is
not smooth,
supply oil to the
top pin.
Replace with new
rollers if abrasion
exceeds limit.
Supply oil to
roller shafts
occasionally.
(9) Split pins
damaged for
shaft stopper
pins and
missing split
pins
Check visually. Split pins are not damaged by rust or
wear.
Split pins should not be missing.
Replace with new
pins if thinned.
Insert split
pins if missing.
Hoist & Trolley
Class Item Inspection method Discard limit/criteria Remedy
Capacity
(kg or t)
Outside diameter (mm)
Standard Limit
125kg to 1 38 37
1.5 to 3 43 42
5(L) 55 54
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