No Turret Rotate - Skyjack SJ85 AJ Service Manual

Section 4 – Troubleshooting Information

4.3-4 No Turret Rotate

No Turret Rotate Left:
1. Stuck or defective differential sensing valve
DSV1.
2. Stuck or defective rotate right valve 5H-32.
3. Stuck or defective, or misadjusted releif valve
RV2 (stuck open, or leak to tank port).
4. Stuck or defective check valve CV11.
5. Stuck or defective counterbalance valve CB1
and/or CB2.
6. Shuttle valve SV5 stuck or defective.
7. Defective Swing Drive Brake BR1.
8. Defective Swing Drive Motor M2.
No Turret Rotate Right:
1. Stuck or defective differential sensing valve
DSV1.
2. Stuck or defective rotate right valve 5H-33.
3. Stuck or defective, or misadjusted releif valve
RV2 (stuck open, or leak to tank port).
4. Stuck or defective check valve CV11.
5. Stuck or defective counterbalance valve CB1
and/or CB2.
6. Shuttle valve SV5 stuck or defective.
7. Defective Swing Drive Brake BR1.
8. Defective Swing Drive Motor M2.
229044ADA
130
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.
Adjust valve. Clean valve. Check O-rings on 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 operation of valve. Repair or
replace valve as required.
Check seals and operation. Repair or replacelace
as necessary.
Check seals and operation. Repair or replace as
necessary.
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.
Adjust valve. Clean valve. Check O-rings on 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 operation of valve. Repair or
replace valve as required.
Check seals and operation. Repair or replacelace
as necessary.
Check seals and operation. Repair or replace as
necessary.
Hydraulic System
SJ85 AJ