Troubleshooting Running Belt & Deck - Precor Energy Series Service Manual

Troubleshooting Running Belt & Deck
This procedure is to be used to determine the condition of the running belt and deck.
A clamp-on ammeter will be used to measure the treadmill's AC input current draw under load. The
AC input current is a direct indication of the loading effects placed on the drive motor system;
heavier loading requires more input current. Treadmill loading consists of several factors: the
exerciser's weight, treadmill speed, incline level, and condition of the running belt and deck.
Test conditions:
The AC input current measurement should be performed at 8 mph (13 kph) and 0% incline for 10
sec minimum workout.
Creating personal input current benchmarks
The Precor typical belt condition input current ratings are based on a loading weight of 220 lbs (100
kgs). A lighter weight exerciser produces less loading effects resulting in lower input current values
for the same belt/deck condition. Therefore, it is recommended that you should create a personal
benchmark or reference input current value for three belt/deck conditions: a new deck/belt condition,
a used good belt/deck condition, and a worn replacement belt/deck condition. These benchmarks
will help you to quickly determine the correct condition of the belt and deck.
• New belt/deck condition benchmark: Make the input current measurement on a machine with a
new belt and deck.
• Used good belt/deck condition benchmark: Repeat the input current measurement on a
machine with a known used good condition belt and deck (for a 220 lb (100 kg) load, the
typical input current should be within the 8-12 amp range).
• Worn replacement belt/deck condition benchmark: Repeat the input current measurement on a
machine with a known worn replacement condition belt and deck (for a 220 lb (100 kg) load,
the typical input current should be 19-20 amps or greater).
Analog Clamp-on Ammeter and Digital Clamp Meters
Because the AC input current will spike (pulse) during foot plants, we suggest the use of an analog
clamp-on ammeter to obtain more accurate measurements. An analog ammeter makes it very easy
to see the AC current spikes and measure the true AC average input current. Less expensive Digital
Clamp meters may not make accurate AC average current measurements due to the current spikes.
If using a digital clamp meter, make sure that the meter provides True RMS AC current
measurement capability (recommend the Fluke 289 True RMS multimeter or equivalent). You can
use the meter AC peak hold feature (if available) to obtain the largest current spike within the
measurement span (some AC current spikes may exceed the 20 amp max spec. limit).
Specialized Tool
• Analog AC Clamp-on Ammeter or Digital Clamp Meter with True RMS current measurement
capability (recommend the Fluke 289 True RMS multimeter or equivalent).
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