Raven SCS 460 Installation & Service Manual page 34

12) SPEED INACCURATE OR UNSTABLE
(SPEEDOMETER DRIVE SPEED
SENSOR).
13) RATE READS "0000".
14) RATE INACCURATE OR UNSTABLE.
2) Remove one red magnet and one black
magnet from the wheel. (Reposition
remaining red and black magnets
directly across from each other).
Enter a SPEED CAL number in the
Console twice as large as the
correct SPEED CAL number.
speed check on hard surface road.
Remove these two magnets and re
place with other two.
check. If SPEED is in accurate with
only one set of magnets, replace
the bad set. If SPEED is inaccurate
with both sets, replace Speed
Sensor Assembly.
NOTE: Re-enter original SPEED CAL
number after testing is complete.
1) Wiggle cable at the Speed Sensor
connector. If speed is displayed,
tighten connector or replace
Transducer Assembly.
2) Check Speedometer Cable Adapter,
Key, and Transducer Assembly for
proper connections and engagement.
3) Check for kinked speedometer cable
or too sharp of bend.
4) Replace Speedometer Transducer
Assembly.
1) Verify SPEED is registering
accurately.
refer to Troubleshooting Problem
10.
2) Verify TOTAL VOLUME is registering
flow. If not, refer to
Troubleshooting Problem 17.
1) Verify that all numbers "keyed in"
Console are correct. Verify SPEED
is registering accurately.
SPEED is inaccurate, refer to
Troubleshooting Problem 11 or 12.
2) In MAN (manual) operation, verify
that RATE display (GPA) holds
constant.
Troubleshooting Problem 18.
3) In MAN (manual) operation, check
low end and high end pressure
range. Pressure range must be per
initial system set-up on page 26.
If pressure cannot be adjusted
manually, refer to Troubleshooting
Problem 17.
30
Run
Run speed
If SPEED is zero,
If
If not, refer to
(Cont. next page)