Skyjack Compact Rough Terrain Series - Page 91

SKYJACK, Page 92
SJRT Compact Series
Engine Powered
4.2-6. Drive Sluggish
1. Check valve (CV3), (CV4), (CV5), or (CV6) stuck open or is defective.
- Check valve. Replace if defective.
2. Drive relief valve (R5) set too low.
- Refer to Section 5 of this manual for setup procedure.
3. Defective flow divider (FD1).
- Check flow divider. Replace if defective.
4.2-7. Reverse Drive Inoperative
1. Stuck or defective drive valve (4H15A).
- Check valve. Repair or replace if defective.
4.2-8. Forward Drive Inoperative
1. Stuck or defective drive valve (4H16A).
- Check valve. Repair or replace if defective.
4.2-9. Drive Inoperative When in Low Drive
1. Parallel counterbalance valve (CB2) stuck or defective.
- Check valve. Replace if defective.
2. Parallel forward drive valve (4H-16B) or parallel reverse valve (4H-15B) stuck or defective.
- Check valve. Replace if defective.
4.2-10. Drive Inoperative When in High Drive
1. Series/parallel valve (4H-20A) not shifting or is defective.
- Check valve. Replace if defective.
2. Main counterbalance valve (CB1) stuck or defective.
- Check valve. Replace if defective.
4.2-11. Brakes Will 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.
4.2-12. Up Circuit Inoperative
1. Stuck or defective lift valve (3H-14A).
- Check valve. Repair or replace if defective.
2. Misadjusted or defective lift relief valve (R2).
- Adjust valve. Replace if defective.
3. Stuck or defective lowering valve (2H13).
- Check valve. Repair or replace if defective.
4. Stuck or defective manual lowering valve (V1).
- Check valve. Repair or replace if defective.
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