Important - Snap-On SVTS263A Manual Del Usuario

1. Install 1/4" MPT airline fitting into the pressure regulator. With the radiator cool,
carefully remove the pressure cap form the radiator or service tank.
2. Check coolant level. Fill to recommended level.
3. Clean the inside of cap opening. Inspect the sealing surface, make sure it is in good
condition.
4. Check the overflow tube/passage for dents or internal obstruction. Pressure released
by the cooling system during vehicle operation must pass through this tube.
5. Install tool onto cooling system. When an adaptor is required, install adaptor first.
Always wet the rubber gasket of the adaptor and tester head before attaching onto
cooling system. NOTE: To attach the pump to the adaptor or cap opening keep the
locking ears in line with the entrance notches of the opening. Press down slightly
and rotate the tester head LEVER clockwise until the lever climbs up, onto (Fig 1), and
completely over ramp cams (Fig 2) so that the tester head is fully engaged and sealed.
To test radiator with 1" deep filler necks, insert 1/4" thick Rubber Spacer Washer prior to
connecting the tester head to cap opening.
6. Close ON-OFF Valve. Turn pressure regulator knob counter-clockwise to the zero
position against the stop. Connect shop to pressure regulator. Slowly open ON-OFF Valve.
Turn knob clockwise until the gauge indicates the pressure rating of the vehicle. Close ON-
OFF Valve. Gauge should hold steady. Disconnect shop air.
NEVER TEST A SYSTEM BEYOND THE MAXIMUM PRESSURE SPECIFIED.
Check manufacturer specifications to determine the proper pressure cap for each system.
DO NOT allow the pressure to build up past the maximum for the system being tested.
IMPORTANT: This tester is designed to release pressure slightly above 30 psi (205 kilopas-
cal).
4
COOLING SYSTEM TESTING
ONLY WORK ON A COOL ENGINE!