Cybex Arc Trainer 610A Service Manual
Service
Page 4-24
10. Remove the crank shaft assembly.
A.
Using a 9/16” socket wrench and a 9/16” open end wrench, remove the two bolts, four flat
washers and two nuts form each of the top pillow blocks. See Figure 12.
B.
Remove the crank shaft assembly along with the primary belt and pillow blocks out of the unit.
NOTE:
There is a pin in each pillow block.
See Figure 13.
11. Remove the top pillow blocks.
A.
Using a 1/8” Allen wrench, loosen but do not remove the two set screws on each pillow block.
See Figure 21.
B.
Pull each pillow block off the shaft. See Figure 21.
C.
Discard the pillow blocks and pins (if applicable).
12. Attach the new top pillow blocks.
A.
Slide a pillow block on each end of the shaft. See Figure 21.
NOTE:
Orientation of pillow block
sleeve and set screws must go toward the inside. Do not tighten the set screws until step 13F.
13. Attach the crank shaft assembly.
A.
Confirm that a pin protrudes about 1/4” out of the back of each pillow block and flush with the
front.
NOTE:
The pins will slide into the frame in the next step.
B.
Place the assembly into the primary belt and slide the pins into the holes on the frame.
NOTE:
The pins should still be flush with the front of the pillow blocks. You may need to tap them in.
C.
Confirm that the belt is straight on the upper pulley.
D.
Using a 9/16” socket wrench and a 9/16” open end wrench, secure the two bolts, four flat
washers and two nuts (removed in step 10A) to each pillow block. See Figure 12.
Figure 21
Pin (2)
Pillow Block (2)
Flat Washer (8)
Bolt (4)
Nut (4)
Shaft
Set Screws
(2 Each Side)
Crank Arm
Screw (2)