REM - GRAINVAC VR12 5. MAINTENANCE
5.4. MAINTENANCE PROCEDURES
9000-00-0042 R3 57
Figure 5.6 Rotor Drive Belt
6. Reinstall idler tightener, spring, and nuts.
7. Tighten the idler arm so the length of the spring is 3-7/8” (98 mm) from spring end to
spring end (see Figure 5.7).
Figure 5.7 Tightener Spring Setting
8. Check for pulley alignment by laying a straight edge along the sides of the pulleys. A
pulley face that is out more than 1/16” (1.6 mm) should be realigned. Ensure the
idler is also aligned properly (see Section 5.4.5. Rotor Drive Belt Idler Pulley –
Alignment on page 58).
9. Replace the rear guard and lower rear guard.
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