Skyjack SJ46 AJ+ Service Manual

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229042ABASJ46 AJ+, SJ46 AJ, SJ51 AJ
Hydraulic System Section 4 – Troubleshooting Information
4. Stuck or defective differential pressure sensing
valve DSV2.
Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
5. Stuck or defective shuttle valve SV3. Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
6. Stuck or defective counterbalance valve CB4. Clean valve. Check O-rings on valve. Repair or
replace valve as required.
7. Stuck or defective check valve CV7. Clean valve. Check operation of 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 RA2. Check motor. Repair or replace if defective.
4.5-9 No Turret Rotate Right
1. Stuck or defective rotate right valve 4H-33. Clean valve. Check operation of valve. Repair or
replace valve as required.
2. Stuck or defective shuttle valve SV4. Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
3. Stuck or defective relief valve RV7. Set valve to specifications. Check o-rings and
clean valve. Repair or replace valve as required.
4. Stuck or defective differential pressure sensing
valve DSV2.
Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
5. Stuck or defective shuttle valve SV3. Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
6. Stuck or defective counterbalance valve CB3. Clean valve. Check O-rings on valve. Repair or
replace valve as required.
7. Stuck or defective check valve CV7. Clean valve. Check operation of 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 RA2. Check motor. Repair or replace if defective.
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Skyjack SJ46 AJ+ Specifications

General

Brand	Skyjack
Model	SJ46 AJ+
Category	Boom Lifts
Language	English