Repair
18
333233D
Calibration
NOTE:
The driver must be de-coupled from the lower
and must be able to cycle freely with no obstructions.
1.
Cycle power to the driver by first turning the power
switch (S) to OFF, and then to ON again.
2.
Wait for the status indicator LED (L) to turn on solid
or start blinking.
3.
Within 30 seconds, rapidly turn the pressure control
knob (N) back and forth from 0 to 10 at least five
times and then set the knob back to 0. If the status
indicator LED (L) was solid before, it will begin blink-
ing an encoder calibration error (code 8) during the
calibration process.
4. The driver output shaft (H) will run up and down
slowly over the course of several minutes.
5.
Midway through the auto-calibration process, the
driver output shaft (H) will pause as it moves to the
next step.
6. The driver output shaft (H) will move up and down
faster 5-6 times.
7.
Ensure the auto-calibration process is complete
before continuing. Wait for the LED to stop blinking.
Repair Token Cable
1.
Perform
Pressure Relief Procedure
, page 7.
2.
Disconnect unit from power source.
3.
Remove 12 screws (20) and washers from
electronics cover (50). See F
4.
Carefully tilt electronics cover (50) down.
See F
5.
Check the token wire (T) connections. Replace the
wire if it is damaged.
NOTE:
Make sure the token
wire connection is positioned with the wires facing
the bottom of the sprayer (as seen below).
6.
Install cover and tighten 12 screws (20) and wash-
ers. Torque to 15-20 ft-lb (20-27 N•m).
7.
Connect power cord.
NOTICE
All wires must be disconnected before the cover is
completely removed. Hold the cover in place while
disconnecting wires or let the cover rest on a work
surface to avoid damaging the wires and connections.
F
IG
. 27: Token Wire
NOTICE
If wires get pinched when the cover screws are tight-
ened, damage will occur. Make sure all wires are posi-
tioned inside the cover before installation.
WLD
T
