Yanmar 3TNV82A-B, Service Manual

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PERIODIC MAINTENANCE
TNV DI Service Manual 5-23
Periodic Maintenance Procedures
Note: A “Used V-Belt” refers to a V-belt which
has been used on a running engine for
five minutes or more.
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
3. Tighten the V-belt to the proper tension. There
must be clearance (Figure 5-6, (1)) between
the V-belt and the bottom of the pulley groove. If
there is no clearance (Figure 5-6, (2)) between
the V-belt and the bottom of the pulley groove,
replace the V-belt.
Figure 5-6
Used V-Belt Tension
A B C
3/8 - 1/2 in.
(10 - 14 mm)
1/4 - 3/8 in.
(7 - 10 mm)
5/16 - 1/2 in.
(9 - 13 mm)
(A)
0000063B
(B)
(C)
0000064B
(2)
(1)
(3)
0000584
(2)
(1)
TNV_DI_SM_A4.book 23 ページ ２００７年１２月６日 木曜日 午前９時２３分