156
SJ82 T, SJ86 T
229040ABA
Section 4 – Troubleshooting Information
Hydraulic System
4.3-17 No Steer
Steer Right
1.
Stuck or defective right steer valve 4H-23A.
Clean valve. Check operation of valve. Repair or
replace valve as required.
2.
Stuck or defective dual check valve DCV2.
Clean valve. Check O-rings on valve. Check opera-
tion of valve. Repair or replace valve as required.
3.
Stuck or defective check valve CV2.
Clean valve. Check O-rings on valve. Check opera-
tion of valve. Repair or replace valve as required.
4.
Plugged orifice OR1.
Check orifice. Clean if plugged or replace if defec-
tive.
5.
Defective steer cylinder C8 for 4WD or C9 for
2WD.
Check seals on cylinder. Replace as necessary.
Replace cylinder if defective.
Steer Left
1.
Stuck or defective right steer valve 4H-24A.
Clean valve. Check operation of valve. Repair or
replace valve as required.
2.
Stuck or defective dual check valve DCV2.
Clean valve. Check O-rings on valve. Check opera-
tion of valve. Repair or replace valve as required.
3.
Stuck or defective check valve CV3.
Clean valve. Check O-rings on valve. Check opera-
tion of valve. Repair or replace valve as required.
4.
Plugged orifice OR1.
Check orifice. Clean if plugged or replace if defec-
tive.
5.
Defective steer cylinder C8 for 4WD or C9 for
2WD.
Check seals on cylinder. Replace as necessary.
Replace cylinder if defective.
Axle Will Not Oscillate
NOTE
Axle will only oscillate when boom is fully retracted and is no greater than 15 degrees above horizontal.
1.
Stuck or defective axle lockout valve 3H-65.
Clean valve. Replace if defective.
2.
One or more counterbalance valves (CB12 or
CB13) failed to shift or is defective.
Clean valve. Check O-rings on valve. Repair or
replace valve as required.
Axle Will Not Lock
NOTE
Axle is in constant float if boom is fully retracted and is below 15 degrees of elevation.
1.
Axle lockout valve 3H-65 is stuck in shifted
position or is defective.
Clean valve. Check O-rings on valve. Check opera-
tion of valve. Repair or replace valve as required.
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