Kohler KDI 1903M Manuale d'uso - Pagina 26

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4.9 Check and setting alternator standard belt tension

4.9.1

Check

1 - Check the belt condition A if worn out or deteriorated,

replace it.

3 - Check that at point p the tension value is between 70 and

75 Hz for V-belt of 9 mm and 80 and 85 Hz for V-belt of 17

mm (Fig. 4.8) (H).

Using the tool F (DENSO BTG-2) shown in the picture

(or a similar one) it is possible to check the corresponding

value in Newton, (which should be) included between 200

and 230 N for V-belt of 9 mm and 350 and 450 N for V-belt

of 17 mm (Fig. 4.8) (H).

Should the correct tool not be available, the belt tension

can be checked by applying a force in the direction of

arrow G of approx' 10kg on the point p. When correctly

tensioned the belt must show a movement of less than 10

mm.

If not adjus it.

4.9.2

Adjustment

1 - Loosen the fastening bolts B and C.

2 - Pull the alternator outwards (in direction of the arrow D), to

tension the belt.

3 - Tension the belt tightening the bolts B and C.

4 - Tighten bolts B and C in sequence with a torque wrench E

(tightening torque of 40 Nm).

5 - Check that at point p the tension value is between 70 and

75 Hz for V-belt of 9 mm and 80 and 85 Hz for V-belt of 17

mm (Fig. 4.8) (H).

Using the tool F (DENSO BTG-2) shown in the picture

(or a similar one) it is possible to check the corresponding

value in Newton, (which should be) included between 200

and 230 N for V-belt of 9 mm and 350 and 450 N for V-belt

of 17 mm (Fig. 4.8) (H).

Should the correct tool not be available, the belt tension

can be checked by applying a force in the direction of

arrow G of approx' 10kg on the point p. When correctly

tensioned the belt must show a movement of less than 10

mm.

Let the engine run for some minutes, then let it cool down

at ambient temperature and repeat the operations 2, 3,

4 and 5 in case the belt tension results out of the above

mentioned values.

NOTE: Contact

KOHLER

replacement.

Index

INFORMATION ABOUT MAINTENANCE

authorised

workshops

Fig. 4.10

Fig. 4.11

Fig. 4.12

for

40 Nm

Fig. 4.13

UM KDI 1903M_2504M _ cod. ED0053029500 - 2° ed_rev. 01

40 Nm