Jackco Model 842 Manuel d'utilisateur télécharger pdf (Page 5)

TROUBLESHOOTING

Problem Possible Cause Solution

Cylinder does not

advance, advances

slowly, or advances in

spurts.

1. Oil level in pump reservoir is

low.

2. Release valve open.

3. Loose hydraulic coupler.

4. Load is too heavy.

5. Air trapped in system.

6. Cylinder plunger binding.

1. Add old according the maintenance

instructions.

2. Close the release valve.

3. Check that all couplers are fully tightened.

4. Do not attempt to lift more than rated

tonnage.

5. Remove air according to the instructions.

6. Check for damage to cylinder. Have

cylinder serviced by a qualified hydraulic

technician.

Cylinder advance,

but does not hold

pressure.

1. Leaking connection.

2. Leaking seals.

3. Internal leakage in pump.

1. Check that all connections are tight and

leak free.

2. Locate leak(s) and have equipment

serviced by qualied hydraulic technician.

3. Have pump serviced by a qualified

hydraulic technician.

Cylinder does not

retract, retracts part

way, or retracts more

slowly than normal.

1. Pump reservoir is over-lled

2. Loose hydraulic coupler.

3. Air trapped in system.

4.Cylinder retraction spring

broken or other cylinder

damage.

1. Drain oil level to ll mark.

2. Check that all couplers are fully tightened.

3. Remove air according to the instructions.

4. Have cylinder serviced by a qualified

hydraulic technician.

1 2 3 4 5 6 7 8

Commentaires sur ces manuels

Pas de commentaire