Cub-cadet Yanmar 3TNV72 User Manual download pdf (Page 81)

PERIODIC MAINTENANCE

5-20 TNV IDI Service Manual

Periodic Maintenance Procedures

Check and adjust the V-belt tension (deflection) as

follows:

1. Press the V-belt down with your thumb with a

force of approximately 22 ft·lb (98 N·m,

10 kgf·m) to check the deflection.

There are three positions to check for V-belt

tension (Figure 5-4, (A), (B) and (C)). You can

check the tension at whichever position is the

most accessible. The proper deflection of a used

V-belt at each position is:

Figure 5-3

Figure 5-4

2. If necessary, adjust the V-belt tension. Loosen

the adjusting bolt (Figure 5-5, (1)) and move

the alternator (Figure 5-5, (2)) with a pry bar

(Figure 5-5, (3)) to tighten the V-belt to the

desired tension. Then tighten the adjusting bolt.

Figure 5-5

(4)

(5)

(1)

0000587C

(4)

(2)

(3)

Used V-Belt Tension

ABC

3/8 - 1/2 in.

(10 - 14 mm)

1/4 - 3/8 in.

(7 - 10 mm)

5/16 - 1/2 in.

(9 - 13 mm)

0000652B

(3)

(1)

(2)

0000653B

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Cub-cadet Yanmar 3TNV72 User Manual Page 81