Trouble Shooting; Mobile Transfer Unit - Walinga Grain-Vac 7614F Operator's Manual

6 TROUBLE SHOOTING

The Walinga Grain-Vac is a high capacity air pump that creates a vacuum for picking up grain and
supplies pressurized air for moving the grain. It is a simple and reliable system that requires
minimum maintenance. In the following section, we have listed many of the problems, causes and
solutions to the problems that you may encounter.
If you encounter a problem that is difficult to solve, even after having read through this trouble
shooting section, please call your Walinga dealer. Before you call, please have this Operator's
Manual and the serial number from your Grain-Vac ready.

6.1 MOBILE TRANSFER UNIT

PROBLEM
Slow pickup of grain
CAUSE
Power source
Air Leaks
Defective blower
Defective airlock
Improper setting of air-slide
7614F Grain-Vac Operator's Manual 34-100853-6
SOLUTION
Check tractor or motor RPM
Tighten all vacuum connections. Be
sure seals are in good condition.
Tighten receiver cyclone to base.
Check seal on pre-cleaner bottom
door. Close and secure.
Inspection door must be closed and
sealed.
Check vacuum relief valve. Replace if
defective. Clear obstruction.
Check pressure relief valve. Clean
or replace as required.
Check for leaking hoses or fittings.
Check clearance between the lobes
and the case. Excessive clearance will
decrease the air flow. Consult your
dealer.
Check that tip clearance is 0.006
inches. Adjust or replace tips as
required.
Reset air-slide.
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