Raven SCS 660 Installation And Service Manual page 34

12) RATE READS "0000".
13) RATE INACCURATE OR UNSTABLE.
14) CAN NOT VARY RATE IN MANUAL
OR AUTO.
15) TOTAL VOLUME DOES NOT REGISTER.
1) Verify SPEED is registering
accurately.
refer to Troubleshooting Problem
10.
2) Verify TOTAL VOLUME is registering
flow. If not, refer to
Troubleshooting Problem 15.
3) Enter a typical speed in SELF TEST.
With BOOM 1 and MASTER ON, verify
AREA/HOUR is registering. If not,
check wiring from Console to BOOM
switch.
1) Verify that all numbers "keyed in"
Console are correct. Verify SPEED
is registering accurately.
SPEED is inaccurate, refer to
Troubleshooting Problem 11.
2) In MAN (manual) operation, verify
that RATE display holds constant.
3) If problem persists, return Console
to Dealer to replace Processor
Board Assembly.
1) Check cabling to Hydraulic Control
Valve for breaks.
2) Check connections in cabling for
cleanliness.
3) Verify that there is voltage at the
valve connector by manually
operating INC/DEC switch.
4) Verify that Hydraulic Control
Valve is turning, if not, replace.
1) Check Metering Shaft Encoder cable
for breaks and shorts. See Appendix
2 for test procedure.
2) Replace Metering Shaft Encoder.
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If SPEED is zero,
If