Elkhart Brass SIDEWINDER 8494 ELECTRIC - Manual

98184020 (Rev-A)
TROUBLESHOOTING THE 8494 ELECTRIC SIDEWINDER
Refer to wiring schematics 98184010 (12v system) or 98184510 (24v system) and replacement
part number guide 98184025.
All three are available for download from our website at www.elkhartbrass.com
First verify good power and ground:
 Voltage at the monitor control module should be 11-14 VDC for a 12v system
(22-27 VDC for a 24v system) when measured under load. Make sure polarity
is correct and there is a good ground connection. Chassis grounds are not
recommended.
Problem; monitor will move up but not down, or down but not up, or it will not
move vertically at all.
1. Disconnect vertical position sensor connectors J06 & P06.
a) Passed; if monitor will now go both directions replace the vertical sensor
and retest.
b) Failed; if there is no change move on to step 1c.
c) Use the manual override nut to place the monitor discharge in the center of
its vertical travel range. Disconnect the motor power connection at J05 &
P05 and on connector J05 apply (+) positive system power to male terminal
and (-) negative to female terminal (Caution; be sure to use the correct
voltage for your system), the monitor discharge should go down. Reversing
the polarity should make it go up. (The electronic stops will not work so do
not maintain power to the motor past +/- 30 degrees from the vertical center
of travel.) If there is no travel in one or both directions repair or replace the
motor assembly and retest system. If there is travel in both directions move
on to step 10.
Problem; monitor will move left but not right, right but not left, or it will not move
horizontally at all.
2. Disconnect horizontal position sensor connectors J08 & P08.
a) Passed; if monitor will now go both directions replace the vertical sensor
and retest.