Drum Mower
9
Note:
In the case of any unprofessional repair of blades using other than original parts, the manufacturer is not liable for
any damages on the machine or caused by your machine. The blade is embossed with a sign that indicates the manufacturer
and is a check mark that the blade is an original spare part.
The machine must be placed on a hard horizontal surface and must be secured so that there is good
access to the blade and machine would not start moving unexpectedly. The engine must be switched OFF and
the spark plug cable end removed!
Take special care when removing the blades. Blade cutting edges are sharp. Protect your hands with
working gloves.
Procedure (per
Fig. 10):
1)
Hold the top disc
1
, so it does not turn. Use pipe wrench No. 16 to remove the screw connection of blade
3
,
4
,
5
,
6
. First unscrew the nut
6
and then the screw
3
.
2)
Remove blade
2
and blade mounting parts from the cutting disc. Straighten the edges and sharpen the blade
cutting edges. The inclination of the sharpened edge should be 30° with respect to the blade’s bottom plane.
3)
Make sure all the blade mounting parts feature no visible damage. Otherwise, replace damaged parts with new ones.
4)
Screw the blade screw assembly back in. Tighten the screw
3
firmly. Secure the screw with nut
6
, so it does not
get loose.
If any blade is bent or excessively worn, you must always replace all the cutting disc blades!
5.4 Belt Gears
The machine features modern belts, which do not require any particular care. It is only necessary to check them regularly,
and when there are cracks or tears on the belt surface, replace them. The factory setting of the tensioning pulleys must be
checked after the first approximately 5 hours of operation when the belt is breaking in. During breaking in, it is necessary to
check the function of the tensioning pulleys to prevent the tensioning pulley from being damaged due to the extension of the
belt to its damage.
You may verify the correct function of belt gears in a simple way:
a) The machine with its travel turned ON has to overcome the terrain inequality of 10 cm high - for
example, a curb is suitable.
b) With the disc drive pulley lock lever locked and the maximum engine speed setting, the disc rotates
If one of the checks failed, it is necessary to adjust the tensioning pulleys.
5.4.1 Travel Tensioning Pulley Adjustment
If you are not sufficiently manually skilled, have the operations completed by an authorized service
centre, please.
Remove the rear top plastic cover to see both belts (
Fig. 8 at the top) that move the machine forward. Try again to
overcome the terrain inequality and visually check which belt is slipping.
1)
If the belt is slipping on the right side of the machine:
The travel tensioning pulley must be engaged (V-belt is tensioned). Screw in the screw
1
at the bowden cable
end in the arrow direction, i.e. downwards to the frame (
Fig. 8 at the top) for approximately 1-2 mm. The bowden
cable must have a clearance of approx. 2 mm in the adjustment screw (when the travel pulley is engaged), otherwise
the belt may not be tensioned automatically due to the travel tensile force.
Repeat the check as described in item a) of chapter. Continue adjusting until the check condition is met, and the
machine is not moving forward when the travel pulley lever is depressed and locked.
2)
If the belt is slipped between the engine and its gearbox:
Adjust the position of the tensioning pulley
2
. Release the pulley by releasing the nut located at the bottom of
the pulley arm and tighten the pulley in the direction of the arrow, using a suitable tool (such as a steel hook). Then
check the correct travel operation.
As soon as you can not adjust the tensioning pulleys, so that the belt does not slip, the worn V-belt must be replaced.
5.4.2 V-belt Change
The V-belt is always to be replaced by a new one when cracks or tears appear on the belt surface and also in the case
when the belt is so much worn by its operation that it cannot be tensioned any more, using the tension pulleys. The exact
process of changing the individual belts is not provided here because it would exceed the scope of this manual. When replacing,
follow the belt path around all the guide elements, especially the guide pins (9) in Fig. 11!
