Enerpac WCR-Series Manual de usuario descargar pdf (Pagina 12)

• Reverse the procedure to reassemble.

When reassembling the drive unit make

sure that the piston rod is inserted

through the cylinder spigot end.

When reassembling the drive unit

make sure that the piston is inserted

through the gland end. Tap the piston

gently into place against the piston

rod.

• Pressurize the assembled drive unit to

max pressure (Advance and Retract),

and check for any signs of leakage.

ENGLISH

• Clean all exposed components with a

mild solvent.

• Inspect all parts for damage.

•

Perform non destructive testing by

magnetic particle inspection on the

following components:

- Cylinder

body

- Piston rod

• Apply a small amount of Loctite 243

to the threads of the

button head

capscrew

before reassembly.

• Apply a small amount of Loctite

243 to the threads in the drive unit,

assemble the swivel

manifold post

and tighten the degreased retaining

screws to 5,1 Nm

(3.76 Ft.lbs).

5.4 Troubleshooting

5.4.1 Drive Unit

Symptom Cause Remedy

Cylinder does not advance or retract. Quick-connect coupling Replace the coupling.

is damaged.

Quick connect coupling is Reconnect the hoses

not connected. and couplings securely.

Dirt in the direction control Disassemble the unit and

valve on the pumping unit. clean the valve.

Cylinder does not build pressure. Piston seal leaks. Replace the seals.

Pump does not build pressure. Adjust the pressure.

Pump is defective. Refer to the pump manual.

Cylinder leaks. Seal failure. Replace the cylinder seals.

Cylinder operates backwards. Connections are reversed.

Reconnect hoses correctly.

5.4.2 Cassette

Symptom Cause Remedy

Drive unit operates Spanner broken Replace the spanner.

but spanner does not move. or damaged. Note: Top of spanner

contains fail-safe area

that is designed to

break in event of overload.

Spanner operation Fasteners loose. Check tightness of all

rough or erratic. screws and other fasteners.

Parts bent, worn Disassemble and inspect

or damaged. roller cassette. Clean,

lubricate and replace

parts as needed.

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Enerpac WCR-Series Manual de usuario Pagina 12

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