EMAK OM124J User Manual download pdf (Page 45)

 As soon as the front edge is at the correct height, place an appropriate washer of the

corresponding height underneath it.

 Check the height of the mowing mechanism’s rear edge. It must be 10-13 mm higher

than the front edge, i.e., 23-25 mm above the ground. If the height is incorrect, adjust it

by loosening the screw (3) on the mowing mechanism frame. Then retighten the loosened

nuts and bolts to 55 – 65 Nm.

6.3.7b

BALANCING THE MOWING MECHANISM SIDEWAYS

The mowing mechanism must be properly set on the sides (

6.3.7c). The left and right sides of the

mechanism must be horizontal.

 Loosen the bolts on the left and right sides of the adjustment plate (1).

6.3.7d

 Under the mower mechanism cover (2) place inserts of identical height (3) (e.g., wood

panels, etc.) and use them to balance the cover such that the left and right sides are equal

distance from the ground. The difference between the left and right sides of the cutting

mechanism should be no more than 5 mm.

 Then retighten the loosened nuts and bolts to 55 – 65 Nm.

6.3.7e

If you are not sure of the procedure, have a service centre do this for you.

6.3.8 MOWING MECHANISM - INSPECTION AND ADJUSTMENT OF THE V-BELT

With time, stress loosens the mowing mechanism’s drive belt, and it must be tightened. The

belt is tensed by pulleys and springs.

 Transfer the spring (1) to the second hole in the pulley tensioning lever (2).

6.3.8a

6.3.9 MOWING MECHANISM - ADJUSTING THE BLADES’ TOOTHED DRIVE BELT

 Set the mowing mechanism to the lowest position by setting the adjustment lever to

position 1.

 Loosen the bolt on the plastic cover on the right side in the driving direction and lift the

cover.

6.3.9a

 Under the metal plate, loosen the nut on the tensioning mechanism with the toothed belt

(3) such that it can turn with mild resistance from the washer under the nut.

 Loosen the safety nut (1), turn the nut (2) rightward and check the tension of the toothed

belt.

6.3.9b

 The belt is properly tensioned, when exerting 4 kPa of pressure halfway between pulleys

(3) and (4) the belt sags about 0.5 cm.

6.3.9c

To measure the force, use, for example, a standard dynamometer available in stores that

carry them.

 Tighten the safety nut (1) of the tensioning device and retighten the nut on the tensioning mechanism

with the toothed belt (3).

 Put the plastic cover back on and tighten its mounting bolt.

6.3.10 MOWING MECHANISM - REMOVAL

 Set the mowing mechanism to the lowest position by setting the adjustment lever to

position 1.

 Slightly raise the grass removal tube (1) and slide it off the two pins welded to the frame

of the mowing mechanism. Then either slide the tube 10 cm to the rear (2) and secure it,

or completely remove it from the machine through the rear plate.

6.3.10a

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EMAK OM124J User Manual Page 45

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