ASME B30.21:2005 pdf free download

ASME B30.21:2005 pdf free download.Manually Lever Operated Hoists.
(d) special or infrequent service — as recommended by a qualified person before the first such occurrence and as directed by the qualified person for any subsequent occurrences.
21-1.3.2 Frequent Inspection
See also Table 1.
(a) Frequent inspections shall be performed at intervals defined in para. 21-1.3.l(b)(1) and shall include observations during operation.
(I’) A designated person shall determine whether conditions found during the inspection constitute a hazard and whether a more detailed inspection is required
(c) The following items shall be inspected:
(1) operating mechanisms for proper operation, proper adjustment, and for unusual sounds such as, hut not limited to, binding noise of the chain, bearing squeal
(2) hooks in accordance with ASME B30.1O, frequent inspection
(3) hook latches, if used, for proper operation
(4) load chain in accordance with para. 21-1.6.1(c) or 21-1.7.1(c)
(5) load chain reeving for compliance with the recommendations of the hoist manufacturer or a qualified person
(6) hoist lever for bends, cracks, or other damage (7) damage to the support for the hoist
21-1.3.3 Periodic Inspection
See also Table 1.
(a) Periodic inspections shall be performed at intervals defined in para. 21-1.3.1(b)(2). These inspections may be performed with the hoist at its location, and do not require the hoist to be disassembled.
(b) Covers and other items normally supplied to allow inspection of components should be opened or removed for the inspection and then closed or replaced before restoring the hoist to normal operation unless further maintenance is required.
(c) A designated person shall determine whether conditions found during inspection constitute a hazard and whether disassembly is required.
(d) The following items shall be inspected:
(1) the items listed in para. 21-1.3.2
(2) fasteners for evidence of loosening
(3) load blocks, suspension housings, levers, chain attachments, devises, yokes, suspension bolts, shafts, gears, bearings, pins, rollers, and locking and clamping devices for evidence of wear, corrosion, cracks, and distortion
(4) hook retaining nuts or collars, and pins; welds or rivets used to secure the retaining members for evidence of damage
(5) load sprockets or idler sprockets for evidence of damage and wear
21-1.3.4 Hoists Not in Regular Service
(a) A hoist that has been idle for a period of one month or more, hut less thati one year, shall be given an inspection conforming with the requirements of para. 21-1.2.2 before it is placed in service.
(b) A hoist that has been idle for a period of one year shall be given an inspection conforming with the requirements of para. 21-1.2.3 before it is placed in service.
SECTION 21-1.4: TESTiNG
21-1.41 Operational Tests
All new hoists shall be tested by the hoist man ufacturer. All altered or repaired hoists, or hoists that have not been used within the preceding 12 months, shall be tested before being placed in service by, or under the direction of, a designated person to ensure compliance with this volume, including the following:
(a) All functions of the hoist shall be checked with the hoist suspended in the unloaded state. (Some hoists may require a nominal load or pull on the load hook to test the lowering motion.)
(b) After testing in the unloaded state, a load of at least 100 lb (46 kg) times the number of load-supporting parts of chain shall be applied to the hoist in order to check proper load control.