Enerpac LW16, Инструкция

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Table 1 - Troubleshooting Guide, Model LW-16
Problem Possible Cause Solution
1. Lifting wedge will not
advance.
a. Load too heavy for lifting wedge. Reduce load or use a larger capacity lifting device.
b. Pump release valve open. Close pump release valve.
c. Coupler not fully tightened. Tighten coupler.
d. Pump malfunctioning. Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
2. Lifting wedge advances
only part way.
a. Low oil level. Add oil to reservoir.
b. Coupler not fully tightened. Tighten coupler.
c. Cylinder plunger binding or
damaged.
Repair or replace component(s) as required. Contact
Enerpac Authorized Service Center.
3. Lifting wedge advances
in spurts.
a. Air in hydraulic system. Purge air from system. Refer to Section 6.5.
b. Cylinder plunger binding or
damaged.
Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
4. Lifting wedge advances
slower than normal.
a. Coupler not fully tightened. Tighten coupler.
b. Leaking connection. Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
c. Pump malfunctioning. Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
5. Lifting wedge advances
but will not hold.
a. Leaking connection. Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
b. Cylinder seals leaking. Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
c. Pump malfunctioning. Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
6. Lifting wedge cylinder
leaks oil.
a. Loose connection. Tighten coupler.
Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
b. Cylinder seals worn or damaged. Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
c. Cylinder has internal damage. Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
7. Lifting wedge will
not retract or retracts
slower than normal.
a. Pump release valve is closed. Open pump release valve.
b. Coupler not fully tightened. Tighten coupler.
c. Pump reservoir overfilled. Drain excess oil from reservoir.
d. Narrow hose restricting flow. Replace hydraulic hose with hose of larger diameter.
e. Broken or weak cylinder retraction
spring.
Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
f. Cylinder and/or wedge mechanical
components worn or damaged.
Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
8. Oil leaking from external
relief valve.
a. Coupler not fully tightened. Tighten coupler.
b. Restriction in hydraulic hose. Remove restriction.
c. Cylinder has internal damage. Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
9. Lifting wedge advances
normally but does not
retract under load.
Driven wedge needs lubrication. Remove lifting wedge from load and lubricate driven
wedge.
10. Lifting jaw is bent. a. Load shift. Reposition load to prevent load shift.
Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
b. Load too heavy for lifting wedge. Reduce load or use a larger capacity lifting device.
Repair or replace component(s) as required.
Contact Enerpac Authorized Service Center.
11. Lifting wedge advances
halfway and then stops.
Pump reservoir not vented. Open reservoir air vent.