Skyjack SJ30ARJE User Manual

125
SJ30AJE, SJ30ARJE 196274AF
Hydraulic System Section 4 – Troubleshooting Information
4.3-16 Platform will not Level Down Manually
1. Plugged or defective orifice OR1. Check orifice. Replace if plugged or defective.
2. Stuck or defective platform level down valve 4H-
40.
Clean valve. Check operation of valve. Repair or
replace valve as required.
3. Stuck or defective dual pilot operated check
valve DPOCV1.
Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
4. Stuck or defective check valve CV2. Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
5. Stuck or defective relief valve RV2. Set valve to specifications. Check O-rings and
clean valve. Repair or replace valve as required.
6. Stuck or defective counterbalance valve CB5 or
CB6.
Clean valve. Check O-rings on valve. Repair or
replace valve as required.
7. Defective leveling cylinder C7 or slave cylinder
C6.
Check seals on cylinder. Replace as necessary.
Replace cylinder if defective.
4.3-17 Platform will not Level Up Manually
1. Plugged or defective orifice OR1. Check orifice. Replace if plugged or defective.
2. Stuck or defective platform level up valve 4H-41. Clean valve. Check operation of valve. Repair or
replace valve as required.
3. Stuck or defective dual pilot operated check
valve DPOCV1.
Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
4. Stuck or defective check valve CV3. Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
5. Stuck or defective relief valve RV2. Set valve to specifications. Check O-rings and
clean valve. Repair or replace valve as required.
6. Stuck or defective counterbalance valve CB5 or
CB6.
Clean valve. Check O-rings on valve. Repair or
replace valve as required.
7. Defective leveling cylinder C7 or slave cylinder
C6.
Check seals on cylinder. Replace as necessary.
Replace cylinder if defective.

Skyjack SJ30ARJE Specifications

General

Brand	Skyjack
Model	SJ30ARJE
Category	Boom Lifts
Language	English