Precor 9.55 Manual page 6

22. It is suggested that you perform this test on a treadmill known to be in excellent operating
condition. Note the values displayed at a fixed speed (such as 3 MPH) and your body
weight. Those values may then be used to benchmark the operation of treadmills you are
diagnosing.
23. Press press the ENTER key to proceed to the belt power test.
24. The display will momentarily read BELT POWER TEST.
25. The belt power test is similar to the belt speed test except that the SPEED keys control the
power bits (PWM value) instead of the belt speed.
26. The same (see step 16) values will be displayed as in the belt speed test.
27. This test is valuable in diagnosing treadmill response to load conditions. As load is
increased, the power bits are kept at a constant value (as set via the SPEED keys) and the
current and belt speed will vary proportionately to the load.
28. It is suggested that you perform this test on a treadmill known to be in excellent operating
condition. Note the values displayed at a fixed power bit reading (as set by the SPEED
keys) and your body weight. Those values may then be used to benchmark the operation of
treadmills you are diagnosing.
29. Press the ENTER key to proceed to the circuit breaker test.
30. The display will momentarily read CIRCUIT BREAKER TEST.
31. The message HOLD ARROW KEY TO TRIP will be displayed. When the arrow key is held,
the message BREAKER WILL TRIP 3 2 1 0 will flash on the screen one word at a time.
Shortly after the 0 is displayed, the circuit breaker will trip. If the arrow key is released before
the circuit breaker trips, the test will be terminated.
32. The circuit breaker test is the last test in the diagnostics routine. If you do not wish to cause
the circuit breaker to trip, press the RESET or the ENTER key to exit the diagnostics routine.
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9.55 Treadmill
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