Idler Pulley Tension Bracket - Life Fitness 9500 Series Service Manual

Life Fitness Model 9500 Series Cross-Trainers
How To...
Replace the IDLER PULLEY TENSION BRACKET
Tools Required: Two 9/16 inch wrenches or sockets
WARNING: TURN THE POWER OFF AT THE ON/OFF SWITCH AND DISCONNECT THE PLUG FROM THE ELECTRICAL
OUTLET PRIOR TO SERVICING ANY MACHINE OPERATING ON AC CURRENT.
1. Turn the unit off and unplug the
power cord from the wall.
2. Loosen (do not remove) the
two bracket mounting bolts.
3. Back out the tensioning bolt
from the tension bracket.
4. Remove the bracket mounting
bolts and remove the two-piece
bracket assembly.
5. Discard the two-piece bracket.
6. Position the U-bracket with
wide slot to the inside of the
frame and the narrow slot over
the mounting holes in the
frame.
7. Place external tooth washer on
each mounting bolt and install
square plate washer over the
mounting bolts.
8. Install the bolts through the U-bracket narrow slot and mounting holes in the frame.
9. Position the slide plate on the back side of the U-bracket and hand tighten the mounting bolts into the threaded plate.
10. Next position the spacer sleeve between the fork end of the U-bracket.
11. Position the pulley bolt through the bracket and spacer.
12. Now install the idler pulley on the bolt with its hub facing against the back side U-bracket.
13. Secure the nylon lock nut and tighten.
14. Place the main drive belt onto the idler pulley.
15. Position the wear plate between the slots of the U-bracket up against the frame.
16. Turn in the tensioning bolt as required to adjust the belt tension.
17. Using a belt tensioning gauge, adjust new belt tension from 165 to 170 lbs, and existing belt from 160 to 165 lbs. If a belt
tensioning gauge is unavailable, place a straight edge between the intermediate pulley and the crank pulley then at the
center of the belt press down on the belt and measure for deflection which should be a 1/4 inch.
18. With the main drive belt properly tensioned, tighten the bracket mounting bolts 5 to 10 ft. lbs.
NOTE: OVER TIGHTENING THE MOUNTING BOLTS WILL CAUSE DAMAGE TO THE SLIDE PLATE.
Nylon Lock Nut
Spacer
Sleeve
Tension Bracket
Idler
Pulley
Hub
Slide Plate
Wear Plate
Pulley Bolt
Tooth Washers (2)
Acorn nut
Tensioning
Jam
Bolt
Bolt
Plate Washer
Square
Mounting Bolts (2)
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