8. TROUBLESHOOTING REM - GRAINVAC VR12
94 9000-00-0042 R3
No mate-
rial comes
out of the
end dump
double
doors and
the end of
the auger
End dump double doors are not
sealing properly
If the end dump double doors do not seal properly, air
will be sucked back down the auger tube. Be sure that
the end dump double doors open and close freely.
Adjust the tension on the spring. Refer to Section
5.4.7. on page 62 for correct spring tension.
Loose or slipping belts or dam-
aged chain
Tighten or replace the belts. Replace any damaged or
worn chain. Check the sprockets for wear and replace
if wear is excessive. Refer to Chapter 5. Maintenance
(page 49) for further details.
Auger is not turning (shear pin
may be broken) because the
drive dogs are not engaging
due to misalignment
Realign the drive dog(s). Refer to Section 6.2. Flight-
ing Removal/Replacement on page 74.
Excessive
amount of
material
comes out
of the
exhaust
Drum screen is damaged Check the drum for holes. Any large holes may allow
material to pass through into the rotor and expel
through the exhaust. Repair or replace the drum (refer
to Section 6.6. on page 84).
Damaged cast aluminum inlet
on drum/rotor inlet
If the inlet is damaged, worn, or missing, material is
allowed to pass around into the rotor and expel out
through the exhaust. Replace the cast aluminum inlet
(refer to Section 6.6. on page 84).
Rear rotating drum screen bear-
ing is damaged or failed, caus-
ing the drum to prematurely
wear out the cast aluminum
inlet
Replace the bearing and seal (refer to Section 6.6. on
page 84).
Grain size is smaller than hole
size of the screen
Adjust the air throttle (see page 41).
Grain
Damage
New machine may need short
break-in period of approx. 5-10
hours
After 5-10 hours of use, hard-surfaced augers become
smooth.
Airlock (end dump double
doors) spring tension is too tight
Loosen the airlock for special situations, but dimin-
ished capacity may be experienced. Refer to Section
5.4.7. on page 62 for correct spring tension.
Grain type or condition is inher-
ently sensitive
Can only try operating at lower PTO rpm.
PROBLEM POSSIBLE CAUSE SOLUTION
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