11–14 cm

11–14 cm

 

Fig. 41

Blade (Fig. 42)

WARNING

Wear protective gloves when handling or performing maintenance on the blade.

○Use a sharp blade. A dull blade is more likely to snag and thrust. Replace the fastening nut if it is damaged and hard to tighten.

○When replacing blade, purchase one recommended by Hitachi, with a 25.4 mm (one inch) fitting hole.

○When installing a saw blade (38), always face the stamped side up. In the case of a 3 or 4 tooth blade (37), it can be used on either side.

○Use the correct blade for the type of work.

○When replacing blades, use appropriate tools.

○When cutting edges become dull, re-sharpen or file as shown in the illustration. Incorrect sharpening may cause excessive vibration.

○Discard blades that are bent, warped, cracked, broken or damaged in any way.

3738

R1–1.5 mm

1.9–2.2 mm

○Check that the cutting attachment is properly centred, sharp, and without cracks. An off-centre cutting attachment induces heavy vibrations that may damage the unit.

○Check that the cutting attachment nut is sufficiently tightened.

○Make sure that the blade transport guard is undamaged and that it can be securely fitted.

○Check that nuts and screws are sufficiently tightened.

Weekly maintenance

○ Check the starter, especially the cord and return spring. ○ Clean the exterior of the spark plug.

○ Remove it and check the electrode gap. Adjust it to 0.6 mm, or change the spark plug.

○ Check that the angle gear is filled with grease up to 3/4. ○ Clean the air filter.

Monthly maintenance

○ Rinse the fuel tank with gasoline.

○ Clean the exterior of the carburetor and the space around it. ○ Clean the fan and the space around it.

Fig. 42

NOTE

When sharpening blade it is important to maintain an original shape of radius at the base of the tooth to avoid cracking.

Maintenance schedule

Below you will find some general maintenance instructions. For further information please contact your Hitachi dealer.

Daily maintenance

○ Clean the exterior of the unit.

○ Check that the harness is undamaged.

○ Check the blade guard for damage or cracks. Change the guard in case of impacts or cracks.

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