Enerpac W-Series Bedienungsanleitung PDF herunterladen (Seite 11)

ENGLISH

11

5.2 Full maintenance

5.2.1 The hydraulic drive unit

• Remove the circlip from the swivel

coupling.

• Remove the couplings.

• Remove the swivel-coupling block

from the drive unit.

• Remove the pin by removing the pin

retaining screws.

• Remove all ‘O’ rings from the pin.

• Carefully hold the cylinder body to

unscrew the cylinder gland.

• Hold the two flat sides of the piston

rod with a spanner. The rod is located

at the spigot.

• Remove the button head cap screw

from the piston.

• Remove the piston rod from the

cylinder spigot end.

• Remove the piston from the cylinder

gland end, using a suitable drift.

• Clean all exposed components with a

mild solvent.

• Inspect all parts for damage.

• Carry out non destructive testing by

magnetic particle inspection on the

following components:

- Cylinder

- Piston rod

• Apply a small amount of Loctite 243

to the threads of the piston retaining

screw before reassembly.

• Apply a small amount of Loctite 243

to the threads in the drive unit,

assemble the swivel pin and tighten

the degreased retaining screws, as

follows:

a) W2000 and W4000:

(M4 screws) – 5,1 Nm

b) W8000 and W15000:

(M5 screws) – 10,2 Nm.

• Reverse the procedure to reassemble

• Pressurise the assembled drive unit to

max pressure (Advance and Retract),

and check for any signs of leakage.

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.

5.2.2 The fastener head

• Strip down and clean all exposed

components with a mild solvent.

• Drift out the roll pin holding the

cylinder retaining pin, and remove.

• Inspect all parts for damage.

• Carry out non destructive testing by

magnetic particle inspection on the

following components:

- Sideplates

- Locating plate

- Pin retainer

- Reaction foot

- Crank

- Ratchet

- Drive shoe

- Cylinder retaining pin

- Spacer retaining pin

• Dry all components. Apply a thin coat

of molybdenum disulphide as

indicated (17).

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 263 264

Kommentare zu diesen Handbüchern

Keine Kommentare