Precor TRM10/GEN06 Service Manual page 115

6 Slowly rotate the drive motor flywheel while pressing the drive belt
off of the motor pulley. Continue until the drive belt walks
completely off of the drive roller pulley.
7 Remove both drive roller mounting bolts evenly releasing the tension.
Remove the drive roller from the treadmill using the drive belt as a
handle.
8 Lift the deck and running belt up and away from the treadmill.
9 Remove the Auto Stop magnet from the deck, if applicable. Slip the
running belt off the deck and discard. Remove the inserts from the
deck and flip it over, re-insert inserts into the new deck surface. If
the deck has already been flipped replace it with a new deck. Make
sure that the new deck surface is clear of debris. Ensure the new deck
is installed with the inserts on the bottom of the deck.
10 The new running belt will have an arrow pointing in one direction on
the underside. The arrow indicates the correct direction of travel for
the belt. Premature belt failure will occur if the belt is installed
incorrectly. Slip the new running belt onto the deck and carefully
place them back onto the treadmill.
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Figure 50: Drive Roller
Page 113