Product 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.
EN pg.14
Size Standard
K (mm)
Max K
(mm)
0.5 ton 28 30.5
1 ton 32 34.4
1.5 ton 36 39
2 ton 36 39
3 ton 46 49.5
5 ton 46 51
10 ton 57 65
20 ton 82 101
30 ton 106 125
Size Standard
H (mm)
Min H
(mm)
Standard
T (mm)
Min T
(mm)
.5 ton 19.2 17.2 15 13.7
1 ton 21 18.4 15.6 14
1.5 ton 29 26.1 21 19.3
2 ton 29 26.1 21 18.9
3 ton 35 31.6 24 21.5
5 ton 45 39.5 32 28.8
10 ton 55 49 41 37
20 ton 88.5 79.5 60 54
30 ton 88.5 79.5 60 54
Hook throat opening
Hook lower prole
Chain wear