9
English
○
If the cutting head does not feed cutting line
properly, check that the nylon line and all
components are properly installed. Contact
Hitachi Authorized Service Centers if you need
assistance.
WARNING
For Hitachi heads, use only
fl
exible,
non-metallic line recommended by the
manufacturer. Never use wire or wire ropes.
They can break o
ff
and become a dangerous
projectile.
3. Installation (Fig. 4)
Insert the Hex bar wrench (8) into the hole of the
gear case and groove of the Cutter holder (9) in
order to lock the shaft.
Install cutting head on gear case of grass
trimmers. The mounting nut is left-hand-
threaded. Turn clockwise to loosen/counter-
clockwise to tighten.
8
9
Fig. 4
4. Adjusting line length
Set the engine speed as low as possible and tap
the head on the ground. The nylon line will be
drawn out about 1-3/16
˝
(3 cm) with each tap.
(Fig. 5)
Fig. 5
Also, you can extend the nylon line by hand but
the engine must be completely stopped. (Fig. 6)
Fig. 6
Adjust the nylon line to the proper length
of 4-11/32
˝
–5-1/2
˝
(11–14 cm) before each
operation.
OPERATING PROCEDURES
Engine oil
○
Always use the speci
fi
ed engine oil (multigrade
oil of classi
fi
cation SAE 10W-30). Insu
ffi
cient
engine oil or using engine oil other than the
speci
fi
ed type may cause breakdown of the unit.
Filling up with engine oil
○
Place the unit horizontally on a clean,
fl
at surface.
○
Remove the oil cap and check whether the
engine oil comes up to the mouth of the oil tank
opening. (Fig. 7)
Fig. 7
○
If the oil level is low or when using the unit for the
fi
rst time,
fi
ll the oil tank with engine oil up to the
mouth of the oil tank opening.
○
If the engine oil is conspicuously dirty or
discolored, change the oil.
○
Tighten the oil cap securely after fueling.
○
When using the unit for the
fi
rst time, change
the engine oil after running the engine for
approximately 10 hours. Subsequently, change
the oil after every 50 hours of operation.
000Book̲CG25EUAP̲US.indb 9
000Book̲CG25EUAP̲US.indb 9
2015/12/03 10:52:14
2015/12/03 10:52:14