Post on 12-Jul-2020
Part Replacement
STAR TRAC FITNESS 1 of 5 637-1516 Rev: A
Clutch Assembly Shaft
TreadClimber®
Parts Required:
• Clutch Assembly Shaft (PN: 717-0051)
Tools Required:
• Metric Hex Key Wrench Set
• Screwdriver Set or Specific Drivers o Flat Head Screwdriver o Phillips Head Screwdriver # 2
• 12” Straight Edge
• Tape Measure, Caliper, Ruler, or Other Measuring Device
Instructions:
1. Turn power off at the base of the machine.
Fig. 1
Part Replacement
STAR TRAC FITNESS 2 of 5 637-1516 Rev: A
2. Remove all the shrouds referenced (Fig. 2) to expose the internal workings of the machine.
Fig. 2
3. Remove tension from the rear cable tensioning system (Fig. 3) to loosen stress from the timing belts by extracting
the thimble and socket head cap bolt from the swivel pulley bracket assembly.
Fig. 3
Part Replacement
STAR TRAC FITNESS 3 of 5 637-1516 Rev: A
4. Loosen the alternator tension positioning socket head bolt (Fig. 4).
Fig. 4
5. Remove the tensioning washer and socket head cap bolts (Fig. 5) from the brackets that guide the transmission shaft assembly.
Fig. 5
Part Replacement
STAR TRAC FITNESS 4 of 5 637-1516 Rev: A
6. Push the transmission shaft off the mounting brackets.
Fig. 7
7. Remove the socket head cap bolts securing the clutch shaft pillow blocks to the left (Fig. 5) and right (Fig. 6) side
of the frame.
8. Lift the clutch assembly shaft upwards and maneuver out through the belts.
Fig. 8
Part Replacement
STAR TRAC FITNESS 5 of 5 637-1516 Rev: A
9. To reinstall the new clutch assembly shaft; reverse all the previous instructions.
10. Stress all the following belts & cables (Fig. 9) to proper tensions.
Alternator Belt
Deflection Value:
90° Twist @ Center of Tangents
Timing Tension Cable Value:
Torque bolt @ pulley swivel until timing
belts do not skip teeth on clutches.
Timing Belts
Value:
Tension Controlled by Cable
Trans. To Alternator
Belt Deflection Value:
(3.6 ± .3 mm) or (0.141 ± .012 in)
Clutch Shaft to Trans.
Belt Deflection Value:
(4-5 mm) or (0.157-0.197 in)
Socket Head
Cap Bolt
Fig. 9
11. Power on the unit to process a speed calibration and test the unit to complete the reinstallation procedure.