TM 10-3930-675-24-1
STEERING VALVE CIRCUIT TROUBLESHOOTING - CONTINUED
0033 00
Threshold [1,450 psi (100 Bar)] Troubleshooting Procedures.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Error Code 340 - Hydraulic Steering Pressure 1. Ensure
that
steering Close steering accumulator
accumulator evacuation valve evacuation valve as required (WP
Below Threshold [1,450 psi (100 Bar)].
0164 00).
is closed.
2. Check pumps. Enter DIAG a. Listen for a change in engine
EXTRA FUNCT 2(13) in the
LOADING when pumps are
diagnostic menu. Use the +/-
turned off and on.
keys to turn pumps off and then b. If no change is heard or felt,
back on.
perform troubleshooting
procedure for error code 172
(WP 0038 00).
3. Enter DIAG STEERING 5(16) If the steering pressure is above
in the diagnostic menu and 1,450 psi (100 bar), the status will
check the status of the pressure be "1".
switch.
4. Check steering pressure at test a. If no or low stabilized
point 3 (WP 0188 00).
pressure, check pressure at test
points 6 and 7 (WP 0188 00).
b. If steering response is slow at
idle or pressure is unstable,
check the nitrogen pressure
and charge the steering
accumulator (WP 0231 00).
c. If no or low pressure at test
point 6 or 7, replace the
steering and tophandler pump
assembly (WP 0242 00).
5. Move cab to the transport a. Replace damaged pressure
position (TM 10-3930-675-
switch (245) (WP 0134 00).
10) and remove the middle b. Repair connector (WP 0113
access cover (WP 0142 00) to
00).
access the steering valve.
Check pressure switch (245)
mounted on the top of the
steering valve for damage and
connection.
0033 00-14
