5.17 Ellipitical Fitness Crosstrainer
Page 22
operates, there are three parts that could cause the problem. There are not any good tests
to check these parts other than substituting a known good part. They are lower PCA,
interconnect cable and upper PCA. Replace only one part at a time. If the new part does not
correct the problem, replace the original part.
9.
If you have performed all of the above tests and the lift system is still not functioning, call
Precor Technical Support.
10. Set the circuit breaker in the “off” position. Remove the F1 (6.3 amp) fuse from the lower
PCA. Measure the fuse with an ohmmeter. The measurement should be 1
Ω
or less. If the
fuse is good, re-insert the fuse and skip to step 12. If the fuse is open (
∞
) or significantly
high, replace the fuse. Before operating the lift motor, it is necessary to perform a continuity
test on the lift motor.
11. Remove the J6 connector from the lower board. Using an ohmmeter, measure between
terminals 2 (red wire) and 3 (black wire) of rear lift motor cable. The measurements should
be approximately 1
Ω
. If the measurement is significantly low, replace the lift motor. If any of
the readings are open (
∞
) or significantly high, check the lift motor cables (rear and forward
lift motor cables) and connectors. Repair any wires or connections that are bad. If the cable
and connectors are good, replace the lift motor.
12. Re-insert the J6 connector in the lower PCA. Set the on/off switch in the “on” position. Using
an DC voltmeter, connect the positive meter lead to terminal 2 of J6 and the negative meter
lead to terminal 3 of J6.In the following measurements the voltage polarity is important. Be
sure to note if the DC voltmeter is reading a positive or negative voltage. Operate the EFX
and press the
CROSSRAMP
s
key. The measurement should be approxi12 Vdc. If
the voltage is present and the lift motor moves normally, skip to step 13. The voltage will
only be present until such time as an error occurs. If +12 Vdc is not present skip to step 14.
If the voltage is measured but the motor does not move, replace the lift motor.
13. Press the
CROSSRAMP
t
key. The measurement should be approximately -12 Vdc. If the
voltage is present and the lift motor moves normally skip to step 14. The voltage will only be
present until such time as an error occurs. If -12 Vdc is measured but the motor does not
move, replace the lift motor.
14. If one or more of the voltages in steps 12 or 13 were incorrect the problem is either the lower
PCA, one of the interconnect cables or the upper PCA. If the display does not indicate that
the ramp is moving in both directions when the appropriate
CROSSRAMP
key is pressed
the problem is either the Upper PCA or the keypad (display housing). Use Procedures 5.1 &
5.2 to determine if the problem is an interconnect cable, keypad or upper PCA.
15. If you have performed all of the above tests and the lift system is still not functioning, call
Precor Technical Support.
