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COOLING SYSTEM LEAKAGE TESTER AND VACUUM-TYPE COOLANT REFILLING KIT (
4. INSTRUCTIONS
I. CREATE A VACUUM IN THE COOLING
SYSTEM
1)
Drain coolant from the radiator.
2)
Hook the gauge underneath the car's hood.
3)
Connect shop air to Air Supply (D).
4)
Connect the Universal conical adapter
(J) or a suitable adapter onto the radiator
filler neck (as in Figure 1).
5)
Turn on the Air Switch (E) and Air Control
Valve (C), while Coolant Control Valve (G)
remains off, to create a vacuum in the
cooling system (as in Figure 2).
6)
When the pressure falls into the range
between -50 and -60 cmHg (-20 and -25 inHg),
turn off the Air Control Valve (G) and then
Air Switch (E).
7)
Leave the gauge on the radiator for
approximately 10 mins to check if there are leaks
in the cooling system before refilling new coolant.
Fig. 1
II. REFILL NEW COOLANT
8)
Connect the Coolant Hose (L)
to the Coolant Hose Connector (H).
9)
Put the other end of the hose into a container
filled with pre-mixed new coolant.
10)
Turn on the Coolant Control Valve (G) (while
the Air Control Valve (C) and Air Switch (E)
remain off), coolant will be introduced into the
radiator immediately (as in Figure 3).
11)
The refilling process is completed when the
gauge reads zero.
12)
Before putting the gauge back to the case,
remove the residual coolant in the gauge.
OFF
OFF
Fig. 3
ON
ON
OFF
Fig. 2
ON
III. COOLING SYSTEM LEAKAGE TEST
1)
Choose a suitable adapter and screw it onto
the radiator filler neck.
Connect the pressure tester to the adapter.
2)
3)
Pump pressure to the range between
10 and 15 psi (Fig. 4).
4)
Check if the gauge reading moves. If it does,
there could leaks in the cooling system.
Attention: Do not pump the pressure up to 35 psi.
PSI
kg/cm²
10
0.70
12.8
0.90
15
1.06
15.6
1.10
35
2.46
IV. RADIATOR CAP LEAKAGE TEST
1)
Connect the original radiator cap to one side
of the connector, and a pressure test cap on the
other side (Fig. 5).
2)
Pump pressure to the specified pressure
on the cap.
3)
When pumping pressure under the specified
pressure, check if the gauge reading drops.
If it does, there could be leaks in the radiator cap.
4)
When pumping pressure above the specified
pressure, check if the radiator cap has the ability
to release pressure. If it does not, the cap should
be replaced.
www.9circleint.com
Bar
0.69
0.88
1.04
1.08
2.42
Fig. 4
Fig. 5
EN
PCS)
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