ValueJet 1304　Service manual
AP-74109 Rev 1.1 7-32
7.4 PF Speed Reduction Belt Tension Adjustment
This section describes the procedure to adjust the tension of the PF speed reduction belt.
When you have removed and installed the PF speed reduction belt, such as for PF motor removal, always
adjust the PF speed reduction belt tension.
Using PF belt tension adjustment jig, adjust the PF encoder position and the PF belt tension.
7.4.1 Jigs and Tools
The jigs and tools required for PF speed reduction belt tension adjustment are as follows.
• Tension gauge: for measuring Max. 50N (5,000gf)
"10.3 Jigs and Tools" p.10-3
7.4.2 Adjustment Procedure
To adjust the PF speed reduction belt tension, follow the steps below.
1. Hook the tip of the tension gauge to the PF motor shaft.
2. Tighten the PF motor fixing screws. At that time, pull the PF motor shaft in the direction shown above
with a bigger arrow so that tension gauge indicates 40.0 ± 0.5N (4078.8gf ± 50.9gf).
No. Part name
1
PF bracket
2 PF motor shaft
3 PF motor fixing screws
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