Troubleshooting The Running Belt & Deck System - Precor Energy Series Service Manual

Troubleshooting the Running Belt & Deck System
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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