Occasionally Used Hoists; Inspection Records; Inspection Methods And Criteria - Harrington ER2 SERIES Owner's Manual

5.5

Occasionally Used Hoists

5.5.1 Hoists that are used infrequently shall be inspected as follows prior to placing in service:
Hoist Idle More Than 1 Month, Less Than 1 Year: Inspect per FREQUENT Inspection criteria in
Section
Hoist Idle More Than 1 Year: Inspect per PERIODIC Inspection criteria in
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
they are available to personnel involved with the inspection, maintenance, or operation of the hoist.
5.6.2 A long range chain inspection program should be established and should include records of
examination of chains removed from service so a relationship can be established between visual
observation and actual condition of the chain.
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.
Item
Functional operating
mechanisms.
Limit Switches
(upper and lower)
Limit Lever Assembly
Braking System Operation
Hooks - Surface Condition
Hooks - Fretting wear
Hooks - Stretch
Hooks - Bent Shank or
Neck
5.3.
Table 5-3 Hoist Inspection Methods and Criteria
Method
Mechanisms should be properly adjusted and
Visual,
should not produce unusual sounds when
Auditory
operated.
Proper operation. Actuation of limit switch should
Function
stop hoist.
Visual, Lever should not be bent or significantly worn and
Function should be able to move freely.
Braking distance with rated capacity should not
Function exceed 3% of the lifting speed (approximately two
chain links).
Should be free of significant rust, weld splatter,
Visual
deep nicks, or gouges.
The "u" and "t" dimensions should not be less
Measure
than discard value listed in
The "k" dimension should not be greater than
1.15 times that measured and recorded at the
Measure time of purchase (See
"k" values are not available for hooks when new,
use nominal "k" values from
Shank and neck portions of hook should be free
Visual
of deformations.
Section 5.2.4. These records should be stored where
Criteria
Table 5-4.
Section 3.7). If recorded
Table 5-4.
31
Section 5.4.
Action
Repair or replace as
required.
Repair or replace as
required.
Replace.
Repair or replace as
required.
Replace.
Replace.
Replace.
Replace.