ATD Tools ATD-3305 - Operating Instructions; Test for Leaks in Cooling System

WARNING: Keep bystanders and children out of the work area while operating this tool.
WARNING: Always keep your work area clean, uncluttered, and well lit. Cluttered or dark areas invite accidents and
injuries. DO NOT work on poor surfaces that are slippery.
WARNING: Do not operate this tool if you are tired or under the influence of alcohol, drugs, or medications that could
aect your ability to use the tool properly.
WARNING: Dress properly. Do not wear loose clothing or jewelery as they can be caught in moving parts. Wear restrictive
hair covering to contain long hair.
WARNING: Do not reach over or across running machines. Keep proper footing and balance at all times. Non-skid foot -
wear is recommended when working.
OPERATING INSTRUCTIONS
t
The pump is not included with this set, but is in your ATD-3300 set. This set is an update set consiting of the adapters only.
Before performing the test on your cooling system, test the pump first by pumping few times to ensure the pump is
working correctly. When testing, DO NOT PUMP OVER 20 psi.
t
During your inspection and during the test of your cooling system, when pumping the pump handle, always make sure
that the force is applied straight into the pump rather than at an angle, or else it may cause the pump to leak. (See
Figure 1)
TO TEST FOR LEAKS IN COOLING SYSTEM:
1. Refer to the vehicle’s service manual for any specifc
radiator pressure testing instructions.
2. Loosen the vehicle’s radiator cap slowly to relieve
any excess pressure before removing the cap
completely. NEVER OPEN THE SYSTEM WHILE HOT,
as this may cause personal injury.
3. Select the proper adapter and configuration of the
stationary seat accessories. Securely attach the
adapter to the filler neck of the radiator or expansion
tank.
4. Attach the quick connector of the hand pump onto
the adapter.
5. Rapidly pump the hand pump handle using straight
force (as shown in figure 1) while watching the pres-
sure gauge. Pressurize the radiator up to the optimal
pressure only - DO NOT OVER PRESSURIZE THE
RADIATOR. Ideal readings should range between
15-20 psi (1.03-1.37 BAR).
t Needle holds steady – If gauge hand holds at the
same pressure number for 2 minutes, there are no
serious leaks in the system.
t Needle drops slowly – Indicates the presence of
FIG. 1
STRAIGHT FORCE
;
:
COOLING SYSTEM PUMP (FIG. 2)
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3UHVVXUH
5HOLHIVDOYH
FDVW-RLQW
6\VWHPTHVWLQJ
$GDSWHU
CAUTION: MAX PRESSURE CAN NOT EXCEED 20 psi
(1.37 BAR), OTHERWISE IT WILL DAMAGE THE RADIATOR
small leaks or seepage.
t Needle drops quickly – Indicates serious leakage is present.