Skyjack SJ6826RT - 10 Drive Inoperative When in High Drive; 11 Brakes Do Not Release; 12 Up Circuit Inoperative; 13 Down Circuit Inoperative

124
SJ6826RT, SJ6832RT
213560ABA
Section 4 – Troubleshooting Information Hydraulic Systems
4.3-10 Drive Inoperative When in High Drive
1. Stuck or defective Series/Parallel Valve 4H-20A. Check valve. Replace if defective.
2. Stuck or defective Main Counterbalance Valve CB1. Check valve. Replace if defective.
4.3-11 Brakes Do Not Release
1. Stuck or defective Brake Valve 3H-30. Check valve. Repair or replace if defective.
2. Stuck or defective Auto Reset Valve V6. Check valve. Repair or replace if defective.
4.3-12 Up Circuit Inoperative
1. Stuck or defective Lift Valve 3H-14A. Check valve. Repair or replace if defective.
2. Lift Relief Valve R2 defective or not adjusted properly. Adjust valve. Replace if defective.
3. Stuck or defective main Lowering Valve 2H-13B. Check valve. Repair or replace if defective.
4. Stuck or defective manual Emergency Lowering Pull
Valve V1.
Check valve. Repair or replace if defective.
5. The manual overrides are open on Holding Valves
2H-13B-1 and/or 2H-13B-2.
Depress and turn manual overrides clockwise to close.
Replace if defective.
6. Stuck Holding Valves 2H-13B-1 and/or 2H-13B-2. Check valves. Repair or replace if defective
4.3-13 Down Circuit Inoperative
1. Stuck or defective main Lowering Valve 2H-13B. Check valve. Repair or replace if defective.
2. Stuck Holding Valves 2H-13B-1 and/or 2H-13B-2. Check valves. Repair or replace if defective.
3. Plugged Lowering Orice O2. Clean or replace orice.
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