Skyjack SJ63 AJ+ Service Manual

187
SJ63 AJ+, SJ63 AJ 229043AAA
Hydraulic System - CE & AS Section 4 – Troubleshooting Information
4.6-7 No Turret Rotate Left
1. Stuck or defective rotate left valve 5H-32. Clean valve. Check operation of valve. Repair or
replace valve as required.
2. Plugged or defective orifice OR2. Check orifice. Replace if plugged or defective.
3. Stuck or defective check valve CV3. Clean valve. Check operation of valve. Repair or
replace valve as required.
4. Stuck or defective relief valve RV2. Set valve to specifications. Check o-rings and clean
valve. Repair or replace valve as required.
5. Stuck or defective differential pressure sensing
valve DSV1.
Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
6. Stuck or defective shuttle valve SV4. Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
7. Stuck or defective counterbalance valve CB4. Clean valve. Check O-rings on valve. Repair or
replace valve as required.
8. Turret rotate brake BR2 not releasing. Inspect brake for worn seals or broken
components. Repair and replace as necessary.
9. Worn or defective swing drive motor M2. Check motor. Repair or replace if defective.
4.6-8 No Turret Rotate Right
1. Stuck or defective rotate right valve 5H-33. Clean valve. Check operation of valve. Repair or
replace valve as required.
2. Plugged or defective orifice OR2. Check orifice. Replace if plugged or defective.
3. Stuck or defective check valve CV3. Clean valve. Check operation of valve. Repair or
replace valve as required.
4. Stuck or defective relief valve RV2. Set valve to specifications. Check O-rings and
clean valve. Repair or replace valve as required.
5. Stuck or defective differential pressure sensing
valve DSV1.
Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
6. Stuck or defective shuttle valve SV4. Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
7. Stuck or defective counterbalance valve CB3. Clean valve. Check O-rings on valve. Repair or
replace valve as required.
8. Turret rotate brake BR2 not releasing. Inspect brake for worn seals or broken
components. Repair and replace as necessary.
9. Worn or defective swing drive motor M2. Check motor. Repair or replace if defective.
To order go to Discount-Equipment.com

Skyjack SJ63 AJ+ Specifications

General

Brand	Skyjack
Model	SJ63 AJ+
Category	Boom Lifts
Language	English