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12.3
Change of motor oil
Motor oil is changed after loosening the drain plug, draining the oil out and retightening the
bottom plug. Then fill with SAE30
12.4
Tightening and maintenance of drive belts
In order to ensure that the belts are correctly adjusted and maintained, a belt tension tester is
supplied with the machine. Operating the machine with too slack belts will reduce the life and
efficiency of the belts heavily and at the same time cause heavy wearing to the pulleys. If the
belts are too tight, there will be an increased wearing to the bearings of the machine. The belt
tension tester works in the following way:
1.
The transmission is turned a few times to
spread the tension over the entire belt, before
measuring takes place.
2.
The tension tester is placed on top of the belt
and between the pulleys. The pointer is
pressed down into the scale.
3.
The tension tester must only be used with one
finger.
4.
Activate the tension tester with a slowly
increasing pressure until a click is heard/felt.
Stop pressing at once.
5.
Remove the tension tester from the belt and
the tension can be read at the intersection
point between the scale and the front edge
of the pointer.
6.
Adjust the belt tension until the measured
value is identical with the tension shown in
the below table. Remember to turn the
transmission a few times
after each adjustment to
make sure that the belt
tension in the belt section
close to the pulley is the
same as that of the entire belt
Static belt tension (N)
New belt Run-in belt
Belts between motor and coupling
375
300
Belt between motor and pump
250
225
Belts between coupling and mower
375
300
Drain plug