Filter
Top Products
30
Condition / Problem Things to Check Solution
Motor Bearings Replace the motor.
7. No elevation up or
elevation down or no
elevation but will calibrate.
Elevation Calibration See Calibration Procedure in the appendix
section. Check the I/O cable connections
at console and dual board.
Elevation Pot Values During elevation calibration, you should
see values from elevation pot in main
display screen lower left. The values
should count up or down during the
elevation calibration procedure. If no
value appears as elevation motor moves,
then calibration will fail. Check wire from
pot to lower control board (LCB) and gray
wire connection in 8 PIN I/O cable.
If value does not change as motor moves,
then remove elevation pot and check
for ohms reading changes as pot shaft
is turned, from white to red and white to
black. If ohms readings do not change
then replace pot. If readings change test
pot jumper. If jumper tests good replace
elevation motor.
Signal to LCB from Console Apply safety key, then press the START
button. When you press the INCLINE UP
button, if the Up LED light on the Dual
Board does not come on, check VDC
between Green and Yellow wires in the
8 PIN I/O cable. Assure Green wire is
securely seated in all plugs. If voltage is
present, replace LCB. If no voltage can
be read replace Upper Electronics. If LED
lights up, then you will need to check the
elevation pots at Elevation Common and
the up post and you should be getting 120
volts. If you are getting 120 volts then you
will need to replace the Elevation Motor. If
you do not get 120 volts then you will need
to replace the LCB.
Elevation Rheostat and the
jumper to the Dual Board.
Check the connectors, if good, replace:
1st - The Elevation Rheostat and jumper
to the Dual Board. Then calibrate the
elevation.
2nd - Replace the I/O cable.
3rd - Replace the Upper Electronics.
4th - Replace the Dual Board.
ELECTRICAL AND MECHANICAL TROUBLESHOOTING GUIDE