system as necessary. To disconnect the manifold when the system is operating correctly, first close the
high side coupler valve. Open the low side coupler valve. Then disconnect the red high side hose from the
A/C system.
·Restart the A/C system, and then open both manifold handwheels. Refrigerant from both hoses will be
drawn quickly into the A/C system through the blue low side hose.
·When both gauges show the lowest operating pressure recommended by the manufacturer, close the low
side valve and turn off the A/C system.
·Close the low side coupler valve and disconnect the low side hose from the A/C system.
Maintaining Your Manifold
To keep your manifold in top operating condition:
·Periodically replace O-rings and valve seats.
·Be sure to lubricate O-rings with High Vacuum Grease.
Because of ongoing product improvements, we reserve the right to change design, specifications, and materials
without notice.
Service Coupler Operation
Field service couplers are provided to access the vehicle’s service ports. The service coupler should be in
the closed position before connecting to the male fitting on the vehicle.
·Turn knurled collar to the left, and then push on with a snap. Turn knurled collar to the right to engage
refrigerant in valve.
·Turn knurled collar back to the left to disengage.
·Pull bottom sleeve up to release from the adapter.
·This coupler is non-venting by design.
Note:
·For R-12, the hoses connect directly to the fittings
·For R-134a, use the supplied fittings to connect hoses.
