Snap-On SVTS272 Guia De Inicio Rapido página 4

A pressure pump and a cap adapter are required to test the coolant system
cap. This kit does not include cap adapters. Cap adapters are available, contact
your sales representative or outlet.
1. Carefully remove pressure cap from the radiator when the system
is COOL.
2. Check cap and verify it is the correct pressure range for the system.
3. Make sure that all parts of the cap, tester head, and adapter are
clean and free from defects. Do not attempt to readjust the
components, replace defective parts as necessary.
4. Apply water to rubber gasket of pressure cap and install on the
radiator cap adapter. Apply water to rubber gasket of pump and
install on the other end of the radiator cap adapter.
Hold tester with radiator cap adapter hanging down. (Some pressure caps
have a free or loose relief valve and will not seal unless testing in this inverted
position).
5. Operate the pump, watching the pressure gauge. Check the
pressure at which the cap starts to relieve pressure. Compare
with cap pressure rating. The cap must hold pressure below its
rating. It must relieve pressure above its rating. A cap is satisfactory
if it holds the proper test range for minute or more. If the gauge
indicator hand falls quickly, replace the cap. Replace cap if it
does not perform properly.
Made in the U.S.A. with global components. Snap-on is a trademark of Snap-on Incorporated.
PAGE 4
TESTING PRESSURE CAPS
© Snap-on Incorporated 2014. Printed in U.S.A.
2801 80th St., Kenosha, WI 53143 • www.snapon.com