Table of Contents
Advertisement
Accumulator valve - Unidentified failure (G.10.A.31 - G.30.B.46)
AFX8010
E0060-11 - Header Height Accumulator Valve
Cause:
The header height accumulator solenoid (L-06) circuit open or is shorted to ground.
Possible failure modes:
1.
Supply wiring shorted to ground or open circuit.
2.
Controller internal failure (internal regulator failure).
Solution:
1.
Enter the Universal Display Plus "DIAG" screen. Select the "HDR HEIGHT/TILT" sort menu, and select
"ACCUMULATOR VLV". Change the drop-down list to "STATUS", and press the "OFF" button to change the
circuit output to "ON".
The "STATUS" screen should indicate "OK" if the circuit is working properly.
A.
If the status screen indicates "ERROR", the circuit is open or shorted to ground. Continue with Step 2.
B.
If the status screen indicates "OK", the circuit is working properly. Continue with Step 7.
2.
Turn the key switch to the OFF position and disconnect the main valve stack connector X022. Use a
multimeter to check the resistance of the header height accumulator solenoid. The proper resistance range
for the coil is 1.0 - 8.0 ohms.
A.
If out of specification, replace coil.
B.
If the coil is within specification, continue with Step 3.
3.
Use a multimeter to check for continuity between the front frame (FF) harness end of connector X022 pin 11
and chassis ground. Flex the front frame (FF) harness while making this check.
A.
If no continuity to ground is found, continue with Step 4.
B.
If there is continuity to ground, continue with Step 6.
4.
Turn the key switch to the ON position. Use the Universal Display Plus "DIAG" screen controls to manually
power the header height accumulator solenoid. Use a multimeter to check for 12 volts between connector
X022 pin 11 and chassis ground.
A.
If 12 volts is not present, continue with Step 5.
B.
If 12 volts is found, continue with Step 7.
5.
Key switch to the ON position. Use the Universal Display Plus "DIAG" screen controls to manually power the
header height accumulator solenoid. Use a multimeter to check for 12 volts between connector X008 pin
1 and chassis ground.
A.
If 12 volts is not present, the open is between connector X008 and connector X020 J3-4 wire 759 white.
B.
If 12 volts is read the open is between connector X008 and connector X022 wire 759 white. Locate
the open and repair.
6.
Disconnect connector X008. Use the multimeter to check for continuity between connector X008 pin 1 and
chassis ground.
A.
If continuity is found the short to ground is in the front frame (FF) harness between connector X008 and
connector X020 J3-4 wire 759 white. Locate the short and repair.
B.
If no continuity is found the short to ground is in the lower frame (LF) harness between connector X008
and connector X022 wire 759 white. Locate the short and repair.
TOOL POSITIONING - LIFTING
9706 1 27/05/2004
G.10.A / 18
Advertisement
Chapters
Table of Contents
Troubleshooting
