Jet S90 Series - Brake Disc; 10 Timing Marks for Gear Replacement

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9.3 Brake disc
Replacement limits for brake disc.
Figure 17
Capacity
Load
chain
column
D
(mm)
d
(mm)
tn
(mm)
tv
(mm)
0.5 ton 1 39 22 2.5 2
1 ton 1 60 30.5 2 1.5
1.5 ton 1 68 35.5 2 1.5
2 ton 1 68 35.5 2 1.5
3 ton 2 68 35.5 2 1.5
5 ton 2 85 45.5 2.5 2
10 ton 4 85 45.5 2.5 2
Table 4
d = inner diameter
D = outer diameter
tn = normal measurement
tv = replacement limit
10.0 Timing Marks for Gear Replacement
If the gears on the S90 hoist need replacement or removal for any reason, make sure they are re-installed
correctly. Figure 18 shows the proper orientation of the timing marks when meshing the gears.
Figure 18