BIOSTRENGTH LINE: Service & Maintenance manual - rev. 2.1
Page 7.75
7.2.31. DISASSEMBLING THE PRIMARY SHAFT
Figure 7.2.31-1
Follow the steps described in paragraphs 7.2.26.
“Disassembling the weight stack frame guard”,
7.2.29. “Disassembling the bell” and 7.2.30.
“Disassembling the primary shaft - secondary
shaft chain”.
1. Unscrew the 4 screws a using a 17-gauge
wrench.
2. Remove the PRIMARY SHAFT.
To disassemble the components of the
PRIMARY SHAFT, place it on a bench or flat
surface. Then:
To disassemble the bearing b:
1. Unscrew the two dowels using a 2-gauge
hexagonal T-wrench.
2. Remove the bearing.
To disassemble the stop c:
1. Remove the bearing b.
2. Use a 4-gauge hexagonal T-wrench to
unscrew the dowel d.
3. Remove the stop.
To disassemble the pinion e:
1. Remove the bearing b, and the stop c.
2. Use a 4-gauge hexagonal T-wrench to
unscrew the dowel f.
3. Remove the pinion.
To disassemble the bearing g:
1. Remove the bearing b, the stop c, and the
pinion e.
2. Use a 3-gauge T-wrench to unscrew the 2
dowels h.
3. Remove the bearing.
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