Honda BF135A Manual page 118

a. Best tension check using belt tension gauge:
1) Set the special tool at the center between the alternator belt
pulleys, and measure the belt tension.
TOOL:
Belt tension gauge
Used belt
Belt tension
New belt
2) If the belt tension is out of the specification, adjust the belt
tension.
b. Belt deflection inspection
1) Measure the belt deflection by pushing the alternator belt
at the center between the pulleys with 98 N (10 kgf, 22 lbf)
of force.
Used belt
Belt deflection
New belt
2) If the belt deflection is out of the specification, adjust the
belt tension.
Belt Tension Adjustment:
1) If the belt tension or belt deflection is out of the
specification, loosen the 10 x 80 mm flange bolt and the 8
mm flange nut, and adjust the belt tension or deflection by
turning the special adjusting bolt right or left.
2) After adjustment, tighten the 8 mm flange nut and the 10 x
80 mm flange bolt in this order to the specified torque.
TORQUE:
8 mm flange nut: 26 N . m (2.7 kgf . m, 20 lbf . ft)
10 x 80 mm flange bolt: 44 N . m (4.5 kgf . m, 33 lbf . ft)
3) After tightening the bolt and nut to the specified torque,
check the alternator belt tension and deflection again.
If the measurement is still out of the specification, repeat
the step 1 and 2.
Replacement:
1) Loosen the 10 x 80 mm flange bolt and the 8 mm flange
nut.
2) Loosen the special adjusting bolt and move the alternator
assembly fully to the engine side.
3-29
07JGG-0010101
329 – 490 N
(40 – 50 kgf, 88 – 110 lbf)
490 – 588 N
(50 – 60 kgf, 110 – 132 lbf)
10.6 – 11.1 mm
(0.42 – 0.44 in)
10.1 – 10.6 mm
(0.40 – 0.42 in)
[1]
BELT TENSION
GAUGE
07JGG-0010101
[1] BELT
DEFLECTION
[2] When pushed with
98 N (10 kgf, 22 lbf)
of force.
10 x 80
[3] ALTERNATOR
BELT
10 x 80
[3] ALTERNATOR ASSEMBLY
[1]
8 mm FLANGE
NUT
[2]
SPECIAL
ADJUSTING
BOLT
[1] 8 mm FLANGE
NUT
[2]
SPECIAL
ADJUSTING
BOLT