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5. Installing guide bar and saw chain
A standard saw unit package contains the items as
shown below:
1) Power unit
2) Bar protector
3) Guide bar
4) Saw chain
5) Plug wrench
Open the box and install the guide bar and the saw chain
on the power unit as follows.
WARNING
The saw chain has very sharp edges. Use protective
gloves for safety.
1. Pull the guard towards the front handle to check that
the chain brake is not engaged.
2. Loosen the nuts and remove the chain cover.
3. Gear the chain to the sprocket and, while fitting the
saw chain around the guide bar, mount the guide
bar to the power unit. Adjust the position of chain
tensioner nut.
1) Chain cover
2) Chain tensioner nut
NOTE
Pay attention to the correct direction of the saw chain.
GB | Operating Instructions
4. Mount the chain cover to the power unit and fasten
5. While holding up the tip of the bar, adjust the chain
6. Tighten the nuts securely with the bar tip held up (12
7. Tighten the tensioner screw.
It is very important to maintain the proper chain tension.
Rapid wear of the guide bar or the chain coming off eas-
ily can be caused by improper tension. Especially when
using a new chain, take good care of it since it should
expand when first used.
6. Fuel and chain oil
Fuel
The engines are lubricated by oil specially formulated
for air-cooled 2-cycle gasoline engine use. If oil is not
available, use an antioxidant added quality oil expressly
labeled for air-cooled 2-cycle engine use.
RECOMMENDED MIXING RATIO GASOLINE 40: OIL 1
These engines are certified to operate on unleaded
gasoline.
7
the nuts to finger tightness.
tension by turning the tensioner screw until the tie
straps just touch the lower side of the guide bar.
~ 15 Nm). Then check the chain for smooth rotation
and proper tension while moving it by hand. If neces-
sary, readjust with the chain cover loose.
IMPORTANT
1) Moving direction
1) Loosen
2) Tighten
3) Chain
tension
adjusting screw
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