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Exception
Brakes require more than audible and visual inspection. Check daily by operating the product with and
without a load, stopping at various positions to ensure safe operation.
Dimensions of Brake Disc for Chain Block:
0.5t / 1t / 1.3t /3t
2t / 5t / 10t / 20t / 30t
TABLE 1 - INSPECTION CHART
In chart, F indicates Frequent Inspection, P indicates Periodic Inspection
LOCATION
Braking mechanism
Brake parts:
Hook
Hook retaining members Not tight or secure
(Pins, Bolts, Nuts)
Hook Latch
Suspension Members (Sheaves, Hand-wheels, Chain attachments,
Suspension bolts or pins)
Gears
Load Block: Suspension housing
Trolley: Supporting structure
Bolts, Nuts, Rivets
WARNING Labels
Hoist Lever
Proper operation
IMPORTANT
Any deficiency found on this inspection chart should be corrected before the hoist is put back into service.
Note: Following disassembly of the hoist during inspection, a load test is required by ANSI/ASME
B30.21 and should be done before the product is put back into operation.
Outer Dia.
Inner Dia.
50 (mm)
22.5 (mm)
60 (mm)
30.5 (mm)
CHECK FOR
Slipping under load
Hard to release
Brake Discs
Glazing
Oil contamination
Pawl: Ratchet
Excessive wear
Pawl: Spring
Corrosion: stretch
Chemical damage
Operation
Deformation
Cracks (dye penetrant, magnetic
particle, or other suitable detection
method)
Not tight, secure or damaged
Damaged; does not close
Excessive wear
Cracks
Distortion
Broken or worn teeth
Cracks
Inadequate lubrication
Distortion
Crack
Possible inability to continue
supporting loads or damaged
Not tight or secure
Removed or illegible
Bent, cracked
Unusual sounds
EN pg.12
Thickness
Thickness for replacement
2.5 (mm)
2.2 (mm)
2.5 (mm)
2.2 (mm)
F
•
•
•
•
•
•
•
•
•
•
•
•
P
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
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