10 No Steer - Skyjack SJ85 AJ Service Manual

Section 4 – Troubleshooting Information

4.3-10 No Steer

No Steer Right:
1. Stuck or defective proportional flow enable valve
2H-42.
2. Stuck or defective steer right valve 5H-23A.
3. Stuck or defective check valve CV10.
4. Stuck or defective pilot check valve CV3 and/or
CV4.
5. Stuck or defective counterbalance valve CB6
and/or CB7.
6. Defective steer cylinder C8.
No Steer Left:
1. Orifice OR1 plugged.
2. Stuck or defective steer right valve 5H-24A.
3. Stuck or defective check valve CV10.
4. Stuck or defective pilot check valve CV3 and/or
CV4.
5. Stuck or defective counterbalance valve CB6
and/or CB7.
6. Defective steer cylinder C8.
229044ADA
136
Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
Clean valve. Check operation of valve. Repair or
replace valve as required.
Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
Clean valve. Check O-rings on valve. Repair or
replace valve as required.
Clean valve. Check O-rings on valve. Repair or
replace valve as required.
Check seals on cylinder. Replace as necessary.
Replace cylinder if defective.
Clean or replace orifice as required.
Clean valve. Check operation of valve. Repair or
replace valve as required.
Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
Clean valve. Check O-rings on valve. Repair or
replace valve as required.
Clean valve. Check O-rings on valve. Repair or
replace valve as required.
Check seals on cylinder. Replace as necessary.
Replace cylinder if defective.
Hydraulic System
SJ85 AJ