OZ Lifting Products OZ1000EC, Operator'S Manual

Page: 12 / 64

Table 8-1 Hoist Inspection Methods and Criteria
Item Method Criteria Action
Functional operat-
ing mechanisms
Visual,
Auditory
Mechanisms should be properly adjusted and should not
produce unusual sounds when operated.
Repair or replace as
required
Braking System
Operation
Function Braking distance with rated capacity should not exceed ap-
proximately five chain links.
Repair or replace as
required
Hooks (surface
condition)
Visual Should be free of significant rust, weld splatter, deep nicks or
gouges.
Replace
Hooks (stretch) Measure The “D” dimension should not exceed the measured value for
discard from Table 8-3.
Replace
Hooks (fretting
wear)
Measure The “F” and “T” dimensions should not be less than discard
value listed in Table 8-3.
Replace
Hooks (yoke as-
sembly)
Visual Should be free of significant rust, weld splatter, nicks or
gouges. Holes should not be elongated, fasteners should not
be loose and there should be no gap between mating parts.
Tighten or replace as
required
Hooks (bent shank
or neck)
Visual Shank and neck portions of hook should be free of deforma-
tions.
Replace
Hooks (hook
latches)
Visual,
Function
Latch should not be deformed. Attachment of latch to hook
should not be loose. Latch spring should not be missing and
should not be weak. Latch movement should not be stiff-
when depressed and released latch should snap smartly to its
closed position.
Replace
Hooks (swivel
bearing)
Visual,
Function
Bearing parts and surfaces should not show significant wear.
They should be free of dirt, grime and deformations. Hook
should rotate freely with no roughness.
Clean/Lubricate, or
replace as required
Load Chain (sur-
face condition)
Visual Should be free of rust, nicks, gouges, dents and weld spatter.
Links should not be deformed or show signs of abrasion.
Surfaces where links bear on one another should be free of
significant wear.
Replace
Load Chain
(lubrication)
Visual,
Auditory
Entire surface of each link should be coated with lubricant and
free of dirt/grime. Chain should not emit cracking noise when
hoisting a load.
Clean/ Lubricate
Load Chain (pitch
and wire diameter)
Measure The “G” dimension should not be greater than maximum value
listed in Table 8-4. The “E” dimension should not be less than
minimum value listed in Table 8-4.
Replace. Inspect Load
Sheave by qualified
personnel
Load Chain
(reeving)
Visual Chain should be reeved properly through load sheave. Chain,
cushion rubbers, washers and stoppers should be installed
properly.
Reeve/ Install chain
properly
Chain Container Visual Container should not be damaged. Brackets should not be
deformed or missing.
Replace
Housing and
Mechanical Com-
ponents
Visual,
Auditory,
Vibration,
Function
Hoist components including load blocks, suspension housing,
chain attachments, clevises, yokes, suspension bolts, shafts,
gears, bearings, pins and rollers should be free of cracks,
distortion, significant wear and corrosion. Evidence of same
can be detected visually or via detection of unusual sounds or
vibration during operation.
Replace
Bolts, Nuts and
Rivets
Visual,
Check with
proper
tool
Bolts, nuts and rivets should not be loose. Tighten or replace as
required
EN pg.12