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DRIVE BELT DEFLECTION/TENSION INSPECTION

BHE011015800W01

  Caution

  • The drive belt deflection can be inspected only between specified pulleys.
  • Perform the drive belt deflection/tension inspection when the engine is cold, or at least 30 min after the engine has stopped.
  • If the drive belt that is being used exceeds the deflection/tension limit, adjust it to the deflection/tension used when adjusting.
  • After replacing with a new drive belt, assemble with the deflection/tension for the new drive belt. Operate the generator drive belt for 1 min or more and the A/C drive belt for 5 min or more while idling the engine. Then adjust it to the deflection/tension used when adjusting.

1. Remove the engine cover. (See ENGINE COVER REMOVAL/INSTALLATION.)

2. Apply a pressure of 98 N {10 kgf, 22 lbf} to the back of the drive belt in the middle of the pulleys shown in the figure and inspect the deflection. Otherwise, inspect the tension using the SST.

  Note

  • The drive belt tension can be inspected anywhere between the pulleys. The drive belt deflection can be inspected only between specified pulleys.

  • If the drive belt deflection is at the deflection limit or more, or the drive belt tension is at the tension limit or less, adjust the drive belt tension.

Drive belt deflection (with pressure of 98 N {10 kgf, 22lbf})

Item | New (mm {in}) | When adjusting (mm {in}) | Deflection limit (mm {in})
--- | --- | --- | ---
Generator | 4.0-4.5 {0.16-0.17} | 4.5-5.0 {0.18-0.19} | 6.0 {0.24} or more
A/C | 3.0-3.8 {0.11-0.14} | 3.3-4.0 {0.13-0.15} | 5.5 {0.21} or more

Drive belt tension (when using the SST)

Item | New (N {kgf, lbf}) | When adjusting (N {kgf, lbf}) | Tension limit (N {kgf, lbf})
--- | --- | --- | ---
Generator | 620-767 {63.3-78.2, 140-172} | 519-666 {53.0-67.9, 117-149} | 344 {35.1, 77.3} or less
A/C | 559-706 {57.1-71.9, 126-158} | 519-617 {53.0-62.9, 117-138} | 265 {27.1, 59.6} or less

3. Install the engine cover. (SeeENGINE COVER REMOVAL/INSTALLATION.)