Skyjack SJ85 AJ Service Manual

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SJ85 AJ 229044ADA
Hydraulic System Section 4 – Troubleshooting Information
4.3-13 No Oscillating Axle Function
Axle will not Oscillate:
NOTE
Axle will only oscillate when boom is fully retracted and is no greater then 10° above horizontal.
1. Stuck or defective axle lockout valve 3H-65. Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
2. One or more counterbalance valves (CB12 or
CB13) failed to shift or is defective.
Clean valve. Check O-rings on valve. Repair or
replace valve as required.
Axle will not Lock:
NOTE
Axle is in constant float if boom is fully retracted and is below 10° of elevation.
1. Axle lockout valve 3H-65 is stuck in shifted
position or is defective.
Clean valve. Check O-rings on valve. Check
operation of valve. Repair or replace valve as
required.
2. Bypassing or defective axle cylinders C6 and C7. Check seals on cylinder. Replace as necessary.
Replace cylinder if defective.
3. Counterbalance valves (CB12 or CB13) out of
adjustment or are defective.
Clean valve. Check O-rings on valve. Repair or
replace valve as required.
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Skyjack SJ85 AJ Specifications

General

Brand	Skyjack
Model	SJ85 AJ
Category	Boom Lifts
Language	English