Life Fitness 4000 Service Manual page 29

Life Fitness Model 4000 Treadmill
How To ... REMOVE AND REPLACE THE REAR ROLLER
Tools Required Socket and ratchet set, hex key wrench set
Step 1
Turn the power OFF at the ON/OFF switch and then unplug the unit from the electrical outlet.
Step 2
Remove the MOTOR COVER. See "How To..."
Step 3
Use a phillips screwdriver to remove the three SCREWS securing each of the END CAPS to the FRAME and set
the END CAPS aside.
Step 4
Use a hex key wrench to loosen and
remove the TENSIONING SCREW
and WASHER securing each side of
the REAR ROLLER to the REAR
ROLLER MOUNTING BRACKETS.
HELPFUL HINT: MARK THE
POSITION OF THE REAR ROLLER
ON THE INSIDE OF THE
MOUNTING BRACKET TO
LOCATE ITS ORIGINAL
PLACEMENT.
THIS WILL HELP WHEN RE-
TENSIONING THE STRIDING
BELT.
Step 5
Remove the worn REAR ROLLER
from the machine.
Step 6
Position the new REAR ROLLER against the MOUNTING BRACKETS and use a hex key wrench to install the
TENSIONING SCREWS and WASHERS by alternately turning the SCREWS clockwise an equal number of turns
until the STRIDING BELT is snug, but not overstretched, against the REAR ROLLER.
IMPORTANT: EACH ADJUSTMENT MADE TO ONE SIDE OF THE REAR ROLLER SHOULD BE MET
WITH AN EQUAL ADJUSTMENT TO THE OTHER SIDE OF THE ROLLER TO
MAINTAIN AN IDEAL BELT TENSION AT THE CENTER PIVOT POINT OF THE ROLLER.
Step 7
Reverse Steps 1 through 3 to return all parts to their proper positions and refer to "How To...ADJUST AND
TENSION THE STRIDING BELT" for proper BELT tensioning instructions.
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