Clarke CHT259 Petunjuk Pengoperasian & Pemeliharaan - Halaman 3

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5. Release the arms.

• The arms will spring out and make contact with the walls of the cylinder.

6. Turn the knurled nut at the top of the shaft clockwise to increase the

pressure of the stones against the cylinder wall.

7. Connect the drill to the mains electricity supply or air line.

8. Pour light oil down the cylinder wall to act as a cutting lubricant and switch

on the drill, making sure you have a secure grip.

• Allow the glaze breaker to rotate inside the cylinder while moving it up

and down the cylinder. There should be a fine cross hatch pattern on the

cylinder wall with the lines intersecting at about 50° to 60° or at 20° to 35°

to the horizontal.

• Some piston manufacturers may specify a different cross hatch pattern,

so check with the instructions supplied with the new piston rings.

• Use plenty of light oil and try to remove as little metal as possible from the

cylinder wall to achieve the specified finish.

• Do not exceed the maximum speed

WARNING: NEVER REMOVE THE TOOL FROM THE CYLINDER WHILE THE

DRILL IS RUNNING AND THE TOOL IS STILL TURNING. ALWAYS SWITCH OFF

THE DRILL AND ONLY REMOVE FROM THE CYLINDER ONCE IT HAS

STOPPED TURNING.

9. Squeeze the arms together before removing them from the cylinder.

10. Wipe the cylinder clean of excess oil and steel dust. Then block it with a

cotton cloth while you work on the other cylinders.

11. It is most important to remove all traces of the abrasive grit produced during

the honing operation. Use a suitable cleaner to clean the whole engine

block thoroughly and brush out all oil holes.

12. You can detect any remaining residues by using a clean white lint-free cloth

dampened with clean engine oil to wipe each cylinder until no dirt or grit

collects on the cloth.

13. Finally, when you have cleaned the cyclinder properly, dry it and then

lightly oil the exposed machined surfaces to prevent rust forming.

REPLACEMENT GRINDING STONES

The grinding stones are a consumable item, Replacement stones are available

from your CLARKE dealer.

Type

Part No:

Fine

1800905

Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]

Type

Part No:

Medium

1800906

Type

Part No:

Coarse

1800907