68 034, 036, 036 QS
The diaphragm pump draws fuel out
of the tank and into the carburetor
via the fuel hose. Any impurities
mixed with the fuel are retained by
the pickup body (filter).
The fine pores of the filter eventually
become clogged with minute
particles of dirt. This restricts the
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passage of fuel and results in fuel
starvation.
Important:
In the event of trouble with the fuel
supply system, always check the
fuel tank and the pickup body first.
Clean the fuel tank if necessary.
Cleaning the fuel tank:
Unscrew the filler cap and drain
the tank.
– Pour a small amount of clean
gasoline into the tank.
– Close the tank and shake the saw
vigorously.
– Open the tank again and drain it.
Removing and installing the
pickup body:
Use the hook 5910 893 8800 to
pull the pickup body out through
the fuel tank filler opening.
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Pull the pickup body off the fuel
hose.
Replace the new type pickup
body (once piece).
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In case of original type pickup
bodies, remove the cap (4) from
the pickup body (1) and take out
the weight (3).
Take the filter (2) out of the pickup
body.
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4
1
2
3
Caution:
The fine mesh strainer on the
pickup body must not be damaged.
It can be washed in white spirit.
Note:
It is not advisable to clean the
filter (2) - always fit a new one.
The foam filter must be fitted without
creases or twists.
Install in the reverse sequence.
Removing the suction hose:
– Remove the carburetor -
see 12.3.
– Pull the pickup body off the
suction hose.
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Pull the suction hose out of the
tank housing.
Install in the reverse sequence.
Note:
Coat the hose flange with a little oil
to simplify installation. The flat face
of the hose flange must be seated
on the tank housing.
12.7 Fuel Filter and Fuel Hose
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