Buffalo B52BCQ User Manual page 13

GASOLINE BRUSH CUTTER / B52BCQ
A dirty or blocked cooling system leads to the
engine overheating resulting in damage to the
cylinder and piston.
Air lter
The air lter should be cleaned regularly removing
dust and dirt to avoid:
• Carburetor malfunction
• Starting problems
• Reduced engine power
• Unnecessary wear to engine parts
• Abnormal fuel consumption
Clean the lter after every 25 hours or more regularly if
operating conditions are exceptionally dusty.
Cleaning the air lter
Dismantle the air lter cover and remove the air lter.
Wash in clean, warm soapy water. Ensure that the
lter is dry before re tting. An air lter used for a long
period of time can never be cleaned completely.
Therefore it is necessary to replace the lter from time
to time with a new lter. A damaged air lter must
always be replaced.
Drive shaft
The drive shaft is lubricated with grease. The shaft
must be lubricated at least every 25 working hours.
Lift up the locking button that holds the drive shaft
sleeve in the clutch cover.
Remove the clip that holds the throttle cable on the
drive shaft.
Pull the drive shaft sleeve out of the clutch cover.
Remove the drive shaft from the sleeve either by
shaking it out or pulling it out using pliers.
Coat the surface of the shaft with grease from the
tube. Spread it out using a brush or rag.
Slide the drive shaft back into the sleeve. Make sure
the shaft engages correctly by turning it and pushing
at the same time.
When the shaft is correctly installed in the sleeve the
end of the shaft should project about 10 mm beyond
the edge of the sleeve.
Rotate the shaft and push it in at the same time.
Install the drive shaft sleeve in the clutch cover so that
the hole is positioned directly underneath the locking
button on the clutch cover.
Angle gear
The angle gear is lled with a suf cient quantity of
grease at the factory. However, before using the
machine you should check that the angle gear is lled
to 3/4 with grease. Normally, the grease does not
need to be changed except when the angle gear is
repaired.
Maintenance schedule
Below follows some general maintenance instructions.
If you need further information please contact your
service workshop.
Daily maintenance
1. Clean the outside of the
machine.
2. Make sure the harness is not
damaged.
3. Make sure the throttle trigger
lock and the throttle function
correctly from a safety point of
view.
4. Check that the stop switch
functions.
5. Check that the cutting head
does not rotate while idling.
6. Clean the air lter. Replace if
necessary.
7. Check the guards for damage
and ensure that they are not
cracked. Replace the guards if
they have been exposed to
impact or are cracked.
8. Check that the blade is well
centred, is sharp, and is not
cracked. An uncentred blade
causes vibrations that can
result in damage to the
machine.
9. Check that the trimmer head
is undamaged and not cracked.
Replace the trimmer head if
necessary.
10. Check that the locking nut is
tight.
11. Check that all nuts and
screws are tightened.
Weekly maintenance
1. Check the starter, the starter cord and the return
spring.
2. Make sure that the vibration damping elements are
not damaged.
3. Clean the outside of the spark plug. Remove and
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