Walinga Grain-Vac 7614F Operator's Manual page 61

6.1 MOBILE TRANSFER UNIT (cont'd)
PROBLEM
Slow discharge of grain.
Pulsation.
Blower overheating.
Product damage.
CAUSE
Power source
Defective blower.
Defective airlock.
Not enough air flow.
Too many bends.
Not enough air flow.
High or low oil level.
Liners worn out.
Poor connections.
Lines wearing.
Excessive RPM speed.
7614F Grain-Vac Operator's Manual 34-100853-6
SOLUTION
Check tractor or motor RPM
Tighten all pressure connections.
Be sure seals are in good condition.
Check pressure relief valve. Clean
or replace as required.
Check clearance between lobes
and case. Excessive clearance will
decrease air flow. Consult your
dealer.
Check that tip clearance is 0.006
inches. Adjust or replace tips as
required.
Check for leaking hoses or fittings.
Open air slide on nozzle to provide
more air.
Increase blower speed.
Straighten out intake line.
Open air slide on nozzle to provide
more air.
Add or remove oil as required.
Replace wear liners in discharge
cyclone.
Tighten and seal all connections.
Eliminate elbows. Keep lines as
straight as possible and provide a
large radius for bends.
Decrease air flow by slowing blower.
Increase grain quantity by closing
air slide.
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