Drive Belt: Installation

INSTALL FAN AND GENERATOR V BELT
1. Provisionally install the fan and generator V belt onto each pulley.
  NOTE: Make sure that the V belt is securely fitted into the rib groove of the pulley.
ADJUST FAN AND GENERATOR V BELT
1. Turn adjusting bolt C and adjust the tension of the V belt.
  NOTE: Check that bolt D is tightened to the specified torque of 19 N*m (189 kgf*cm, 14 ft.*lbf).
2. Tighten fixing bolts A and B.
  Torque: 19 N*m (189 kgf*cm, 14 ft.*lbf) for bolt A
  
  43 N*m (438 kgf*cm, 32 ft.*lbf) for bolt B
  
  Fig 1: Locating Generator Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

INSPECT FAN AND GENERATOR V BELT

Check the V belt deflection and tension. Deflection

Fig 2: Drive Belt Routing & Pulleys

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

ITEM SPECIFIED CONDITION CHART

Item	Specified Condition
New belt	7.5 to 8.6 mm (0.296 to 0.338 in.)
Used belt	8.0 to 10.0 mm (0.315 to 0.397 in.)

Tension

ITEM SPECIFIED CONDITION CHART

Item	Specified Condition
New belt	637 to 735 N (65 to 75 kg, 143 to 165 Id)
Used belt	392 to 588 N (40 to 60 kg, 88 to 132 Id)

If the belt deflection is not as specified, adjust it.

HINT:

When inspecting the V belt deflection, apply 98 N (10 kgf) tensile force to it.
After installing a new belt, run the engine for approximately 5 minutes and then re-adust the tension to (new belt) specifications.
Check the V-ribbed belt deflection and tension at the specified point.
V-ribbed belt tension and deflection should be checked after 2 revolutions of the engine.
V-ribbed belt tension and deflection should be checked at TDC crank angle and cold condition.
When adjusting a belt, adjust its deflection and tension to the intermediate values of the specification.
When reinstalling a belt which has been used for over 5 minutes, adjust its deflection and tension to the used belt specification.
When using a belt tension gauge, confirm its accuracy by using a master gauge first.
If use a sonic tension meter.

Input Data for Sonic Tension Meter

Weight: 15 g/rib*m

Width: 6 ribs

Span: 188 mm (w/A/C)

282 mm (w/o A/C)