1.Fasteners. Check rivets, capscrews, nuts, cotter pins and other fasteners on hooks and hoist body. Replace if missing and tighten or secure if loose.
2.All Components. Inspect for wear, damage, distortion, deformation and cleanliness. If external evidence indicates the need, disassemble. Check gears, shafts, bearings, sheaves, chain guides, springs and covers. Replace worn or damaged parts. Clean, lubricate and reassemble.
3.Hooks. Inspect hooks for cracks. Use magnetic particle or dye penetrant to check for cracks. Inspect hook retaining parts. Tighten, repair or replace if necessary. Refer to the latest edition of ASME B30.10 (Hooks) for additional hook inspection information.
4.Chain Sheaves. Check for damage or excessive wear. Replace if necessary.
5.Brake. Ensure proper operation. Brake must hold hoist rated capacity. If load test indicates the need, disassemble. Brake discs must be free of oil, any grease, unglazed and uniform in thickness. Refer to “MAINTENANCE” section for allowable brake disc wear. Check all other brake surfaces for wear, deformation or foreign deposits. Inspect gear teeth, pawl and pawl spring for damage. Check that brake pawl stops counterclockwise rotation of ratchet gear. Clean and replace damaged components as necessary.
6.Supporting Structure. If a permanent structure is used, inspect for continued ability to support load.
7.Labels and Tags. Check for presence and legibility. Replace if necessary.
8.End Anchor. Ensure end anchor is installed and unbent. Replace if missing or damaged. Refer to “Attaching End of Load Chain” in the “MAINTENANCE” section.
9.Load Chain. Measure the chain for stretching by measuring across five link sections all along the chain length. Refer to Dwg. MHP0041 on page 7. When any five links in the working length reach or exceed the discard length shown in Table 2, replace the entire chain. Always use a genuine Ingersoll Rand replacement chain.
Table 2: Load Chain Length Inspection
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| Chain | Normal Length | Discard Length | |||
Model No. | Size | ||||||
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| mm | in | mm | in | mm | |
SMB005 | 5 x 15 | 2.95 | 75 | 3.03 | 77 | ||
SMB010 | 6 x 18 | 3.54 | 89.9 | 3.63 | 92.2 | ||
SMB015 | 7 x 21 | 4.17 | 106 | 4.28 | 108.7 | ||
SMB020 | 8 x 24 | 4.72 | 119.9 | 4.84 | 122.9 | ||
SMB030 | 10 x 30 | 5.91 | 150.1 | 6.03 | 153.2 | ||
SMB050 | 9 x 27.2 | 5.35 | 136 | 5.47 | 139 | ||
Hand Chain: No “discard” length needed.
(Dwg. MHP0041)
Hoists Not in Regular Use
1.Hoists which have been idle for a period of one month or more, but less than one year should be given an inspection conforming with the requirements of “Frequent Inspection” before being placed in service.
2.Hoists which have been idle for a period of over one year should be given a complete inspection conforming with the requirements of “Periodic Inspection” before being placed in service.
3.Standby hoists should be inspected at least semiannually in accordance with the requirements of “Frequent Inspection”.
LUBRICATION
General
Thread lubricant or an antiseize compound use is recommended for threaded shafts, capscrews and nuts. Unless otherwise stated, remove old lubricant, clean the part with an acid free solvent and apply a new coating of lubricant to the part before assembly.
Gears (38 and 41)
1.Remove nuts on gear cover.
2.Remove old grease and replace with new. For temperatures
Load Chain
WARNING
•Failure to maintain clean and well lubricated load chain may result in chain failure causing injury, death or substantial property damage.
1.Lubricate each link of the load chain weekly. Apply new lubricant over existing layer.
2.In severe applications or corrosive environments, lubricate more frequently than normal.
3.Lubricate hook and hook latch pivot points with the same lubricant used on the load chain.
4.To remove rust or abrasive dust
5.Use Ingersoll Rand
MHD56391 - Edition 2 | 7 |
