Harrington Hoists and Cranes RHN - Rhino Wire Rope Hoist - Manual (Page 42)

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5.6 Inspection Records
5.6.1 Dated inspection reports and records should be maintained at time intervals corresponding to those that apply
for the hoist’s PERIODIC interval per
Section 5.2.4 . These records should be stored where they are available to
personnel involved with the inspection, maintenance, or operation of the hoist/trolley.
5.6.2 A long-range rope inspection program should be established and should include records of examination of
ropes removed from service so a relationship can be established between visual observation and actual
condition of the rope.
5.7 Inspection Methods and Criteria
5.7.1 This section covers the inspection of specific items. The list of items in this section is based on those listed in
ANSI/ASME B30.16 for the Frequent and Periodic Inspection. In accordance with ANSI/ASME B30.16, these
inspections are not intended to involve disassembly of the hoist. Rather, disassembly for further inspection
would be required if frequent or periodic inspection results so indicate. Such disassembly and further inspection
should only be performed by a qualified person trained in the disassembly and re-assembly of the hoist or
trolley.
Table 5-5 Hoist (and Trolley) Inspection Methods and Criteria
Item Method Criteria Action
Functional
operating
mechanisms. Visual, Auditory Mechanisms should be properly adjusted and
should not produce unusual sounds when
operated. Repair or replace
as required.
Limit Switch Function Proper operation. Actuation of limit switch should
stop hoist. Repair or replace
as required.
Hoist Braking
System Operation Function The brake disc (brake rotor) should not exceed
the maximum permissible air gap (S) values listed
in
Table 5-8 .
Replace as
required (see
Section 6.3 ).
Hook – Surface
Condition Visual Should be free of significant rust; weld splatter,
deep nicks, or gouges. Replace.
Hook – Fretting
wear Measure The “u” and “t” dimensions should not be less
than discard value listed in
Table 5-6
Replace.
Hook – Stretch Measure The “k” dimension should not be greater than 1.1
times that measured and recorded at the time of
purchase (See
Section 3.9 and Table 5-6) .
Replace.
Hook – Bent
Shank or Neck Visual Shank and neck portions of hook should be free
of deformations. Replace.
Hook Block
Assembly Visual Should be free of significant rust; weld splatter,
nicks, 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.
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.