Snap-On SVTSRAD272A Manual De Instrucciones página 2

Install a ⁄ " MPT airline fitting into the Air Inlet Valve (see Fig. 1). Hold valve
1
4
body with a 9 ⁄
1 6
Shop air pressure: Minimum 90 p.s.i. / Maximum 150 p.s.i.
Radiator should be empty.
Heater control must be in HEAT position. (Turn ON ignition if needed).
At sea level, this tool is capable of drawing a vacuum of approximately 27 inches of mercury on
a cooling system. This is the equivalent of about 13 psi of NEGATIVE pressure. DO NOT use this
tool to draw a vacuum on a system rated for less than 13 psi, as it MAY CAUSE THE RADIATOR
TO COLLAPSE! Since the mid–1960's almost all passenger vehicles have a minimum rating of 13
psi. If you are working on an older vehicle or a large truck, CHECK THE PRESSURE RATING
BEFORE USING THIS TOOL!
The automotive cooling system refiller is available in two versions:
One version attaches to the cooling system through the use of rubber cones
(see figure 2, below). If you have this version of the tool, choose the cone
which best fits the filler neck of the cooling system on which you are working
and thread it snugly (but by hand) onto the tool. Then attach the tool to the
cooling system by pushing on the top [the flat part] of the rubber cone
directly. [DO NOT USE THE GAUGE AS A HANDLE FOR THIS PROCEDURE OR
YOU WILL BREAK THE GAUGE]. The rubber cone only has to be tight enough
to hold the tool in place at this point, as it will become more secure as a vacuum
is drawn. Wetting the rubber cone with water or coolant helps in this process.
The other version of the tool and the large truck version uses the cap assem-
bly shown in figures 3 and 4 below. This version fits directly onto many older
cooling system filler necks. If an adapter is required, install the adapter to the
cooling system first. Always wet the rubber gasket of the adapter and tester
head before attaching onto cooling system. NOTE: To attach the refiller to
the adapter 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 3), and completely over
the ramp cams (Fig 4) so that the tester head is fully engaged and sealed.
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" wrench to maintain its position.
NOTE ON LOW PRESSURE COOLING SYSTEMS:
REFILLING INSTRUCTIONS
IMPORTANT