Hitachi CG 40 EYA (TP) - Инструкция по эксплуатации - Страница 16

GB-14

Muffler (Fig. 3-4)

Remove the muffler and clean out any excess 
carbon from the exhaust port or muffler inlet every 
100 hours of operation.
It you find corrosion on the muffler, replace it.

Cylinder (Engine cooling) (Fig. 3-5)

The engine is air cooled, and air must circulate 
freely around engine and over cooling fins on 
cylinder head to prevent overheating.

Every 100 operating hours, or once a year 
(more often if conditions require), clean fins and 
external surfaces of engine of dust, dirt and oil 
deposits which can contribute to improper cooling.

NOTE!

Do not operate engine with engine shroud or 
muffler guard removed as this will cause 
overheating and engine damage.

Angle transmission (Fig.3-5B)

Check angle transmission or angle gear for 
grease level about every 50 hours of operation 
by removing the grease filler plug on the side of 
angle transmission.
If no grease can be seen on the flanks of the 
gears, fill the transmission with quality lithium 
based multipurpose grease up to 3/4.
Do not completely fill the transmission.

Blade (Fig. 3-6)

      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 25.4mm
   (one inch) fitting hole.
   When installing saw blade (2), always face the
   stamped side up. In the case of a 4 tooth blade
   (1), it can be used on either side. 
   Use correct blade for the type of work.
   When replacing blade, use appropriate tools.
   When cutting edges become dull, re-sharpen
   or file as shown in figure. Incorrect sharpening
   may cause excessive vibration.
   Discard blades that are bent, warped, cracked,
   broken or damaged in any way.

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 HITACHI dealer.

Fig. 3-6

1

2

R1-1.5 mm

1.9-2.2 mm

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.
   Check that the cutting attachment is properly 
   centred, sharp, and without cracks. An off-
   centred 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 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.

   Clean the cooling fins on the cylinder and
   check that the air intake at the starter is not
   clogged.
   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. 3-5B

Fig. 3-4

Fig. 3-5