Skyjack SJ82 T - 11 Platform will Not Level

153
SJ82 T, SJ86 T
229040ABA
Hydraulic System Section 4 – Troubleshooting Information
3. Stuck or defective jib up valve 4H-36. Clean valve. Check operation of valve. Repair or
replace valve as required.
4. Stuck or defective counterbalance valve CB10. Clean valve. Check O-rings on valve. Repair or
replace valve as required.
5. Defective rotary actuator RA1. Check actuator. Repair or replace as necessary.
4.3-11 Platform will not Level
Level Down
1. Stuck or defective platform level down valve 4H-
40.
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 CV8. Clean valve. Check O-rings on valve. Check opera-
tion of valve. Repair or replace valve as required.
4. Stuck or defective shuttle valve SV3. Clean valve. Check O-rings on valve. Check opera-
tion of valve. Repair or replace valve as required.
5. Stuck or defective relief valve RV3. Set valve to specifications. Check O-rings and
clean valve. Repair or replace valve as required.
6. Stuck or defective counterbalance valve CB6. Clean valve. Check O-rings on valve. Repair or
replace valve as required.
7. Plugged orifice OR2. Check orifice. Clean if plugged or replace if defec-
tive.
8. Defective leveling cylinder C3 or slave cylinder
C4.
Check seals on cylinder. Replace as necessary.
Replace cylinder if defective.
Level Up
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