IAI America IX-NNC3515 - Manual (Page 39)

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6. Inspection/Maintenance
6.2.5 Checking the Belt Tension for the Rotational Axis
Using a push-pull gauge, push the timing belt for rotational axis with a force of 300 to 400 gf and measure
the amount of deflection.
If the deflection is 0.7 mm, the belt tension is normal.
If the deflection is not 0.7 mm, adjust the tension by referring to 6.2.7, “Adjusting the Belt Tension for the
Rotational Axis.”
z When measuring deflection, do not use a gauge with a sharp tip that may damage the belt.
Push-pull gauge
Deflection (0.7 mm)
Pulley
Pulley
Belt
Caution