2.5.5.2 Replacing the V-belt
Always replace the V-belt
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can no longer be tightened using tensioners. The exact procedure for changing the belt is not included here because it would exceed the
scope of this manual. When replacing, follow the instructions given in Pic.9 , 10 and 16 . Ensure that the belt path around all leading
components is followed!
If you are not sufficiently technically competent, assign this task to a professional service centre.
2.5.5.3 Checking brake operation and adjusting the brake
Check the operation of the automatic brake after every 10 hours of use. You can perform regular checks when working. Whenever the
tool drive clutch lever is released, the automatic brake must stop the rotating work tool within 5 seconds.
Do not continue working unless you repair the defect on the automatic brake!
If you are not sufficiently technically competent, assign this task to a professional service centre.
If the brake does not stop the rotating tool within the specified time, the brake cable
adjustment screw is attached on the brake cable (
(towards the frame) so that the axial clearance of the cable in the adjustment screw is 1 mm. Check the operation of the automatic brake.
If the screw
B
when fully tightened does not achieve sufficient braking, screw in the brake cable adjustment screw (
handlebars so the cable axial clearance in the adjustment screw is 1 mm and subsequently recheck the operation of the automatic brake
If the brake fails to brake sufficiently even after adjustment, contact a professional service centre. Do not
continue operating the machine without a functional brake under any circumstances!
2.5.6 Servicing intervals
Activity
Check the engine oil level
Clean the engine air filter
Washing
Removing impurities and cut vegetation remnants
Sharpening the tool blades
Checking the blade mounting
Checking the tightness of the work tool (blade)
Check the tightness of screw connections
Lubrication
Check V-belts
Table 7: Service intervals
2.5.7 Problems and troubleshooting
Problem
The work tool does not turn
Machine does not move
Use exclusively genuine replacement parts. Proper gear function cannot be guaranteed when using V-belts from different manufacturers.
70
71
May be performed in the opposite way – first screw in (towards the handlebar traverse) Brake bowden cable screw on the handles so the axial clearance is 1 mm in the adjustment
screw.
72
In highly dusty conditions, check and clean every hour!
28
with a new one whenever the belt shows signs of cracking or tearing and whenever the belt is so worn that it
B
on Pic.12 ) to the frame, should be turned in the opposite direction of the arrow
Before use
yes
check
-
-
check
yes
yes
yes
inspect condition
-
Cause
Engine is not started
The drive clutch lever is not depressed
The belt is loose
Broken belt
Belt slid off
Other defect
Engine is not started
The drive clutch lever is not depressed
The belt is loose
Broken belt
Belt slid off
Other defect
on Pic.11 , 12 and 14 must be adjusted. The
B
During the season
according to the engine operating manual
every 10 hrs
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2x
after each cutting
as needed
immediately replace if damaged
-
every 5 hrs.
Table 6
every 20 hrs.
Solution
Start the engine
Depress the lever
Adjust the tensioner
Replace the belt with a new one
Seat the belt
Contact the service centre
Start the engine
Depress the lever
Adjust both tensioners
Replace the belt with a new one
Seat the belt
Contact the service centre
F-550
on Pic.14 ) on the
B
71
.
Before storing
yes
yes
yes
yes
yes
yes
yes
yes
yes
yes