3
Operating Instructions and Parts Manual
27066
08/15
2015 OEMTOOLS
COOLING SYSTEM AIREVAC KIT
PURPOSE
The OEMTOOLS Cooling System AirEvac Kit provides a quick and easy
way to fill automotive cooling systems while preventing spills and trapped
air. It uses shop air to create a vacuum and remove excess air from
the system. It refills the entire cooling system in seconds, including the
heater core. It also eliminates time consuming bleeding and purging while
allowing the user to check for leaks while under vacuum. Adapters are
included to fit radiators or surge tanks on most domestic and import cars
and light trucks.
CAUTION
This equipment is intended only for professional use by personnel trained
in performing the service functions for which it is has been designed.
This equipment is designed for servicing a variety of vehicles in a safe,
convenient manner. However, differences in vehicle makes and models
may make it impossible to use this equipment as it is intended.
DO NOT
attempt to force the use of this equipment on an application for
which it is not designed to perform. The procedures documented in this
manual are to serve as guidelines for the use of this equipment.
In addition to these guidelines, always follow the manufacturer’s
recommended procedures when servicing each unique vehicle.
The use of this equipment is simple and straightforward if you follow the
instructions. However, always keep in mind that you are working with a
system that may be under pressure, with fluid that is just waiting to be
expelled. When operating this equipment, use common sense, and always
stop to think before disconnecting a hose or other component.
WARNING
Some vehicle manufacturers provide specific instructions to fill and bleed
their cooling systems. It is important to understand and follow the vehicle
manufacturer’s instructions to prevent damage to components and
possible injury.
NOTE:
It is best if the vehicle cooling system is completely drained
before starting.
NOTE:
On some vehicles, it will be necessary to clamp overflow hoses
to create a vacuum.
OPERATION:
1. Select the proper sized Cooling System Adapter (1,2,3) that fits your
cooling system. It should fit snug in the radiator or expansion tank
opening.
2. Install the Cooling System Adapter on to the Expansion Adapter (6)
on the Cooling System Adapter Assembly (4).
3. Insert the Cooling System Adapter Assembly into your radiator or
expansion tank and turn the Expansion Knob (9) clockwise until
snug, making sure all components are positively engaged to prevent
leaks.
4. Connect the Venturi Assembly (7) to the Airvac using the quick
coupler.
5. Connect shop air to the Venturi Assembly using the quick coupler
(not included).
6. Open Ball Valve (10) on the Airvac and you will see the Gauge (5)
start to register a vacuum.
7. Once the system reaches full vacuum, close the Ball Valve and
disconnect shop air. After 20 seconds, the Gauge should not move.
This indicates the system has no leaks under vacuum.
8. Disconnect the Venturi Assembly and attach the Pickup Tube (8) to
the Airvac Assembly. Place the Pickup Tube into coolant supply, open
Ball Valve and coolant will begin to flow into vehicle cooling system.
Once Gauge reaches zero, the system is full.
NOTE:
This works best if the coolant supply is at the same level as the
Airvac unit. Be sure not to let the Pickup Tube come out of the coolant
supply or you will let air into the system and you will have to start over.
9. Remove Airvac Assembly from the vehicle by rotating the Expansion
Knob counterclockwise.
10. Fill the expansion tank to the proper level and top off the radiator if
necessary.
WARNING
MAINTENANCE:
1. Always store the Cooling System AirEvac Kit in a well-protected area
where it will not be exposed to inclement weather, corrosive vapors,
abrasive dust, or any other harmful elements.
2. Keep the Cooling System AirEvac Kit clean for better and safer
performance.
