Lever Hoists
PAGE: 10
Model MLH
MLH-005 & MLH-010
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7.3 Frequent Inspection
•
All functional operating mechanisms for proper operation and adjustment, maladjustment and unusual sounds.
•
Hoist braking system for proper operation
•
Hooks and latches in accordance with ANSI/ASME B30.10
•
Hook latch operation
•
Load chain reeving for compliance
•
Hoist Lever for bends and cracks
•
Hoist support for damage
7.4 Periodic Inspection
•
Requirement of frequent inspection
•
Evidence of loose, bolts, nuts, or rivets.
•
Evidence of worn, corroded, cracked, or distorted parts such as load blocks, suspension housing, chain attachments,
clevises, yokes, suspension bots, shafts, gears, bearings, pins, rollers and locking and clamping devices.
•
Evidence of damage to hook retaining nuts or collars and pins, and welds or rivets used to secure the retaining members.
•
Evidence of damage or excessive wear of load and idler sheaves
•
Evidence or worn, glazed or oil contaminated friction disks; worn pawls, cams or ratchet; corroded, stretched, or broken
pawl springs in brake mechanism.
•
Evidence of damage to supporting structure
•
Function label on hoist for legibility
•
Warning label properly attached to the hoist and legible
•
End connections of load chain stopper link
7.5 Inspection Schedule
Table 7.5.1
Inspection Schedule
Interval
Inspection
Daily
a.
Check the hooks and the hook latches for cracks or deformities. Twisted hooks
or hooks with throat openings more than the reject openings listed in Table 5-1
should be replaced.
b.
Check chain for wear and twisting.
c.
Check brake for drift.
Quarterly
a.
Check for loose screws, nuts, etc.
b.
Check load sprocket and hand chain wheel for wear.
Annually
a.
Inspect for worn gears, pawl, spring, ratchet and shafts.
b.
Check for worn break discs.
c.
Inspect chain in kerosene or other non-corrosive solvent and inspect for wear,
nicks, or distortion of any kind.
