Jet 131000 1ss-3c-10 - 1-ton capacity 10-ft 3-phase electric chain hoist User Guide
12
Maintenance
The lever hoist should be stored in a clean, dry
environment. Clean and oil the hoist before
storage.
environment. Clean and oil the hoist before
storage.
Hoists that are installed out-of-doors should be
covered or brought inside when not in use.
covered or brought inside when not in use.
Periodically apply a light coat of 30 weight oil to
the load chain. Also lubricate the safety latches
and the bearings in the hooks.
the load chain. Also lubricate the safety latches
and the bearings in the hooks.
Allowable Limits for Load
Chain and Hooks
Chain and Hooks
Load Chain
Carefully inspect the entire load chain. As
illustrated in Figure 9, measure five consecutive
links with calipers to find the length, Compare
the results with the table in Figure 9. Check
every three feet and especially where excessive
wear is indicated. Any load chain that shows
noticeable deformation or heat influence must
be replaced with a new one.
illustrated in Figure 9, measure five consecutive
links with calipers to find the length, Compare
the results with the table in Figure 9. Check
every three feet and especially where excessive
wear is indicated. Any load chain that shows
noticeable deformation or heat influence must
be replaced with a new one.
Never extend load chain by
welding a second piece to the original.
Hooks (Top and Bottom)
Replace the hook when the distance between
indicator points – “A” in Figures 10 and 11 – is
wider than the limits given in the table.
indicator points – “A” in Figures 10 and 11 – is
wider than the limits given in the table.
Never heat treat the hook or attach anything to
the hook by welding.
the hook by welding.
Hoist
Capacity
“A” Dimension
Normal
(mm)
“A” Dimension
Replace if ≥
9 ton
54.1
57
Figure 11
Hoist
Capacity
5 Links Normal
(mm)
5 Links Limit
Replace if ≥
0.8 ton
79
81.3
1 ton
79
81.3
1.6 ton
100
102.9
2.5 ton
124
127.
3.2 ton
141
145.1
6.3 ton
141
145.1
9 ton
141
145.1
Figure 9
Hoist
Capacity
“A” Dimension
Normal
(mm)
“A” Dimension
Replace if ≥
0.8 ton
41.8
44
1 ton
49.
52.5
1.6 ton
52.3
55
2.5 ton
59.9
63
3.2 ton
62.7
66
6.3 ton
84.6
89
Figure 10