Belt Rating Details; Procedure - Precor TRM 885.v2 Service Manual

Worn Running Belt & Deck Troubleshooting
This procedure is to be used to determine the condition of the running belt and running deck
combination. The AC input current is a direct indication of the load being placed on the treadmill.
Treadmill loading consists of several factors, the user's weight, treadmill speed and condition of
the running belt and running deck.
With each foot plant friction is created, and the MC overcomes this by adding additional current
to the motor. As the deck and belt wear, this friction increases, causing the MC to have to supply
more current to compensate. The console software uses an algorithm to determine the
belt/deck friction measurement, and displays this in the information display as Belt Rating. This
is a ranking representing the average input currents from the last 100 workouts, weighted by
treadmill speed. The ranges go from 10 (best) to 0 (worst). While this information is useful to
see the wear of the belt/deck in order to anticipate the need for changing them, it does not tell
you how many miles may be left on your belt.
The Active Status Light (ASL) will start pulsing blue when the belt rating is 0 or 1, and will reset
to solid blue when the rating is 2 or higher. A belt rating of 2 indicates a severely worn belt and
deck. You can attempt to resolve the issue by doing belt/deck cleaning maintenance and then
resetting the belt Maintenance Reminder function, see Introduction to Treadmill Troubleshooting
- How to reset a blue pulsing ASL light. If the issue is a worn belt, the blue flashing ASL will
return after approximately 1-2 months.

Belt Rating Details


The belt wear will be measured from 0 – 10 with 10 representing a new belt and 0
representing a fully worn out belt.

The state of belt wear can be viewed in the Information Display menu

Belt rating is an algorithm derived from the average of the last 100 workouts between 5.5
and 12.5 mph, looking at current draw and other parameters. To reach a level below "2"
says that there is severe deck and belt wear.

In the P30, this menu is also used to clear out the belt history and reset the belt rating to 10
after a tech has serviced the unit and replaced the belt.

When the belt rating goes below 2, the ASL (Active Status Light) will go to the blue flashing
state as described in the LED status flowchart.

The ASL will automatically change back to blue solid once the belt rating has moved above
2.

Procedure

1. On the console enter the information display (RESET, 6, 5) and navigate to the Belt Rating
selection. Press OK, and note the Rating. A lower rating may indicate that the belt and
deck need cleaning. If the rating is 0 or 1, the belt will need to be replaced, and the deck
should be flipped or replaced if previously flipped. See procedure Running Belt and/or
Deck Replacement.
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