Precor TRM 811.v2, Service Manual

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2. Loosen the take up roller tension bolts. These bolts are being loosened to remove the tension
on the running belt.
3. Walk the drive belt off the motor pulley.
4.
Remove the four screws (two #3 Philips and two 7/16 hex head), shown in Figure 30, and lift up
the dust shield, which is held to the frame by four clips.
Figure 30: Dust Shield Screw Locations.
5. Lift the drive roller and remove the roller and the drive belt from the machine.
6. If you are replacing the drive belt, place the new drive belt on the inside of the drive roller pulley,
and set the roller back into place.
7. Feed the belt onto the motor pulley, and then walk the drive belt onto the drive roller pulley by
rotating the drive motor flywheel. Be sure the belt is fully seated in the grooves of both pulleys
and correctly aligned.
8. Reseat the dust shield, and install the four screws removed in step #4.
9. Adjust the drive belt tension per the Procedure, Adjusting Drive Belt Tension .
10. Tension the Running Belt as per procedure Tensioning the Running Belt and Running Belt
Tracking Adjustment as per procedure Running Belt Tracking Adjustment .
11. Install all covers, and then check treadmill operation per Checking Treadmill Operation .
Running Belt and/or Deck Replacement
1. Remove the hood and both Deck Side Platforms.
2. Remove the Take Up Roller, then the Drive Roller.
3. Using a 3/16 hex wrench remove the four screws securing the deck at the rear to the pivoting
deck mounts. Keep for reinstallation.
4. Using a hex wrench remove the two screws securing the front of the deck to the Tinnerman
Clips on the forward most GFX cushion. Keep for reinstallation.
5. Carefully lift the deck and belt out of the treadmill frame.