Alternator Belt, Check Poly-V; Alternator Standard Belt Tension, Check And Setting; Check And Setting, Alternator Standard Belt Tension; Check Poly-V Alternator Belt - Kohler KDI-1903TCR Owner's Manual

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4.9 Check and setting alternator standard belt tension
4.9.1 Check
1 - Check the belt A condition, if worn out or deteriorated,
replace it.
2 - Check by the appropriate tool that at point
value is between 80 and 85 Hz.
Using the tool F (DENSO BTG-2 or a similar one) shown in
the picture, it is possible to check the corresponding value
in Newtons, which should be between 350 and 450 N.
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 by the appropriate tool that at point
value is between 80 and 85 Hz.
Using the tool F (DENSO BTG-2 or a similar one) shown in
the picture, it is possible to check the corresponding value
in Newtons, which should be between 350 and 450 N.
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
10mm.
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.

4.10 Check Poly-V alternator belt

NOTE: The poly-v belt is not adjustable.
1 - Check the belt A condition, if worn out or deteriorated,
replace it.
NOTE: Make sure that the ribs of the belt G are inserted
correctly into the grooves of the pulleys A (as shown
in D1 and D2).
2 - Start the engine and run it for some minutes, then turn off
EN
it, and let it cool down at ambient temperature.
Check by the appropriate tool that at point
value is between 149 and 196 Hz.
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Index
INFORMATION ABOUT MAINTENANCE
p the tension
p the tension
authorised workshops
p the tension
p
Fig. 4.11
Fig. 4.12
B
A
40 Nm
for
Fig. 4.13
p
Fig. 4.14
UM KDI 1903TCR_2504TCR _ cod. ED0053029490 - 2° ed_rev. 01
A
p
F
p
G
E
D
C