Owner's manual
Use the following chart to determine when the hook must be replaced. Replacement of the hook
is necessary if any of the previous page problems are found or the maximum dimensions on the
charts that follow are reached.
Chain Inspection
Inspect chain before each use. Between regular inspections visually check on a daily basis the following:
• Clean chain before inspection using a non-caustic/non-acid solvent
• Lubrication of the chain may be necessary if it binds up or is noisy
• Chain feeds smoothly into and from the hoist and does not emit cracking noise when hoisting a load
• Visually examine link by link for any nicks, gouges, weld splatter, corrosion, or distorted links pay close
attention to chain’s contact points, which may show excessive wear.
• Test hoist with load and observe operation of chain over load sheaves.
pg.14
Size Standard
K (mm)
Max K
(mm)
0.5 ton 28 30.5
1 ton 26 28.5
1.5 ton 32.5 35.5
2 ton 32 35
3 ton 37 40.5
5 ton 46 51
10 ton 50 58
20 ton 81 100
30 ton 81 100
Size Standard
H (mm)
Min H
(mm)
Standard
T (mm)
Min T
(mm)
.5 ton 19.1 17.1 13 11.7
1 ton 25.7 23.1 16 14.4
1.5 ton 28.8 25.9 17 15.3
2 ton 34.3 30.9 21 18.9
3 ton 43.9 39.5 25 22.5
5 ton 52.5 47 32 28.8
10 ton 60.5 54.5 40 36
20 ton 88.5 79.5 60 54
30 ton 88.5 79.5 60 54
Hook throat opening
Hook lower prole
Chain wear