52
Table 5-5 Hoist and Trolley Inspection Methods and Criteria
Item
Method
Criteria
Action
Hook Block –
Swivel Bearing
Visual, Function
Bearing parts and surfaces should not show
significant wear, and should be free of dirt, grime
and deformations. Hook should rotate freely with
no roughness.
Clean/lubricate, or
replace as required.
Hook Block –
Sheave(s) and
Shaft
Visual, Function
Sheave(s) should be free of significant wear.
Sheave surfaces should be free of nicks, gouges,
dirt and grime. Bearing parts and surfaces of
Sheave and Shaft should not show significant
wear. Sheave should rotate freely with no
roughness or significant free play.
Clean/lubricate, or
replace as required.
Hook – Hook Latch 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.
Hoist – Housing
and Mechanical
Components
Visual, Auditory,
Vibration,
Function
Hoist components including load blocks,
suspension housing, wire rope 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
Trolley – Housing
and Mechanical
Components
Visual, Auditory,
Vibration,
Function
Trolley components including load bars, trolley
wheels, trolley wheel axles, eye bolts, hex shafts,
gears, bearings, pins, rollers, and bumpers 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
Bolts, nuts and rivets should not be loose.
Tighten or replace
as required.
Wire Rope Wedge
Visual
The fixing (anchorage with wedge) must be
replaced if it shows deformation, wear, cuts, or
necking.
Replace
Wire Rope Drum
Visual, Function
Entire surface of the drum should be coated with
lubricant and should be free of dirt and grime.
Rope should fit in drum grooves.
Clean/lubricate
(see
Section 6.2
).
Wire Rope Guide
Visual, Function
Rope Guide should be free of significant wear,
cracks, nicks, gouges, dirt and grime. Rope
Guide should take up rope play and move with
the rope on the drum during rope unwinding and
winding.
Replace
Wire Rope –
Reeving
Visual
The wire rope should be reeved properly through
Hook Block Sheave (and Crossbar Sheave) –
refer to
Section 6.6
.
Reeve/Install
properly.
Summary of Contents for Harrington RY Series
Page 15: ...15 2 3 Part Names Figure 2 1 RY Part Names...
Page 42: ...42 Figure 3 20 Hoist Upper and Lower Limit Switch ULLS...
Page 57: ...57 Table 5 8 Various shapes that require the wire rope to be replaced...
Page 67: ...67 Table 6 9 Motor Brake Gap Capacity Code Brake Gap G inch mm RY030 RY050 0 032 0 8...
Page 104: ...104 9 3 Trolley Frame Parts Figure 9 3 Trolley Frame Parts...
Page 112: ...112 9 10 Hoist Motor Parts Figure 9 10 Hoist Motor Parts...
Page 114: ...114 9 11 Trolley Motor Parts Figure 9 11 Trolley Motor Parts...
Page 116: ...116 9 12 Control Panel Box Parts Figure 9 12 Control Panel Box Parts...
