Ingersoll Rand LV Serie Manual De Instalación Y Operación página 9

4. CHAIN (ref. Dwg. MHP0102). Examine each of the links for bending, cracks in weld areas or
shoulders, transverse nicks and gouges, weld splatter, corrosion pits, striation (minute parallel lines)
and chain wear, including bearing surfaces between chain links. Replace a chain that fails any of the
inspections. Check lubrication and lubricate if necessary. See "Load Chain" under
"LUBRICATION."
• The full extent of chain wear cannot be determined by visual inspection. At any indication of
chain wear inspect chain and load sheave in accordance with instructions in "Periodic Inspection."
• A worn load chain may cause damage to the load sheave. Inspect the load sheave and replace if
damaged or worn.
5. LOAD CHAIN REEVING. Make sure welds on standing links are away from load sheave. Re-install
chain if necessary. Check that the last link of the load chain is securely connected. Make sure chain
is not capsized, twisted or kinked. Adjust as required.
6. HAND LEVER. Check for cracks, bending and other damage. Replace if necessary.
Periodic Inspection
Frequency of periodic inspection primarily depends on the severity of usage:
NORMAL
yearly
Disassembly may be required for HEAVY or SEVERE usage. Keep accumulative written records of
periodic inspections to provide a basis for continuing evaluation.
Inspect all items in "Frequent Inspection." Also inspect the following:
Table 1
Hoist
Capacity
LV and L5H
3/4 and 1 ton
1-1/2 and 2 ton
3 ton
6 ton
SL
3/4 ton
1-1/2 ton
3 ton
6 ton
CAUTION
HEAVY
semi-annually
8
Throat Width Discard Width
in. mm in.
1,22 31 1,40
1,50 38 1,72
1,85 47 2,12
2,01 51 2,31
1,06 27 1,22
1,34 34 1,54
1,65 42 1,90
1,85 47 2,12
SEVERE
quarterly
mm
35,6
43,7
54,0
58,6
31
39
48,3
53,8