Snap-On SVTS263A User manual
SVTS263A
SHOP AIR
COOLANT SYSTEM TESTER
The SVTS263A Shop Air Cooling System Pressure Tester Set contains a pressure
pump and the 3 most common adaptors.
INTRODUCTION
TABLE OF CONTENTS
English
Safety Information..............................................................3
Instructions .......................................................................4
Service Parts......................................................................7
Warranty............................................................................8
• Flammable liquid and fumes can ignite
Wear safety shield (user and bystanders).
Use only in well-ventilated areas.
Read and follow instructions.
Flames or explosion can cause injury.
• Pressurized equipment, systems or
tanks can break or leak
Do not exceed the maximum pressure
rating of equipment. Wear safety goggles
or shield and protective clothing
appropriate to the uid.
Pressurized uid striking the body can
cause personal injury. Flammable uids
such as gasoline, propane, etc. can ignite
or explode and cause injury.
• Fluids can leak or escape
Use only in well-ventilated areas.
Breathing vapors or uids from leaks can
cause illness or injury.
• Pressurized air or uid stream can
propel dust or particles
Do not direct air or uid stream at your
body or at others.
Flying particles, air or uid entering body
can cause injury.
3
COOLING SYSTEM TESTING
ONLY WORK ON A COOL ENGINE!
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.
4
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).
INTERPRETATION OF RESULTS
A. Gauge Pressure Stable:
If the gauge does not drop over a period of several minutes there are no serious
leaks in the system. Examine all joints for seepage or slight leakage.
B. Gauge Pressure Drops Slowly”
A small leak is likely present. Check radiator, water pump, hoses, gaskets and
heater. After repairing leaks, re-test system.
C. Gauge Pressure Drops Quickly:
A large leak is present. Look for any external sign of coolant. If no coolant is
visible, an internal leak is indicated. Check heater core, engine oil and
transmission fluid.
Detection of compression or combustion leakage into the cooling system.
A. With the COOLING SYSTEM COOL, remove cap. Install tester onto system. Close
ON-OFF Valve.
B. Start engine and let idle. As engine warms up, watch pressure gauge. If gauge
pressure vibrates or rises rapidly, turn off engine immediately. DO NOT ALLOW
THE PRESSURE TO EXCEED THE SYSTEM SPECIFICATIONS. A vibrating or fast
pressure rise indicates a blown head gasket. Carefully remove tester after
system cools.
Once testing is complete, release pressure in the cooling system by turning the
tester head
LEVER
clockwise until it moves up the ramp cams (Fig 1). With pressure
released, rotate tester
HEAD
counter-clockwise to remove.
5
INTERPRETATION OF RESULTS
Figure 2Figure 1
6
TESTING PRESSURE CAPS
A pressure pump and a cap adaptor are required to test the cooling system cap. This
kit does not include cap adaptors. Cap adaptors are available, contact you sales
representative or outlet.
1. Carefully remove pressure cap from the radiator when 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 adaptor 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
adaptor. Apply water to the rubber gasket of pump and install on the other end
of the radiator cap adaptor.
Hold tester with radiator cap adaptor hanging down. (Some pressure caps have a
free of 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 one minute or more.
If the gauge indicator hand falls quickly, replace the cap. Replace the cap if it
does not perform properly.
7
123
47
5
6
9
8
10
11
12
# PART# DESCRIPTION # PART # DESCRIPTION
1 TA10052R Rubber seal for #TAB10036 8 SVTS263-2 Pressure Gauge with Rubber
Boot
2 TA10036G Rubber O-ring for
#TAB10036/TAB10052
9 SVTS263-3 Hook and Bracket Assembly
3 TAB10036 Radiator adapter with seal 10 SVTS263-6 Valve/Regulator Assembly
4 SVT262-22 Spacer washer (1/4” Thick
Rubber Washer) for testing 1” deep
filler necks
11 SVTS263-4 Cap Assembly with hose
NOTE: Hose is field repairable with
3/16”ID fuel line
5 SVT262-30 Rubber Seal for 32mm
Radiator Adaptors
12 SVT262-19 Tester Seal
6 TA38C 32mm x 9.5mm adaptor
with seal
* SVTS263-1 Complete Pump with Hose
and Cap Assembly (#8-12)
7 SVT262-28A 32mm x 16mm adaptor
with seal
* SVTS263-5 Plastic Carrying Case
WARRANTY / SERVICE AND REPAIR
Snap-on®Tools Limited 1 year Warranty
Snap-on Tools Company (the “Seller”) warrants only to original purchasers who use the Equipment in their
business that under normal use, care and service, the Equipment (except as otherwise provided herein)
shall be free from defects in material and workmanship for 90 days from the date of original invoice. Seller
does not provide any warranty for accessories used with the Equipment that are not manufactured by
Seller.
SELLER’S OBLIGATIONS UNDER THIS WARRANTY ARE LIMITED SOLELY TO THE REPAIR OR, AT SELLER’S
OPTION, REPLACEMENT OF EQUIPMENT OR PARTS WHICH TO SELLER’S SATISFACTION ARE DETERMINED
TO BE DEFECTIVE AND WHICH ARE NECESSARY, IN SELLER’S JUDGMENT, TO RETURN THIS EQUIPMENT TO
GOOD OPERATING CONDITION. NO OTHER WARRANTIES, EXPRESS OR IMPLIED OR STATUTORY, INCLUDING
WITHOUT LIMITATION ANY IMPLIED WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR
PURPOSE, SHALL APPLY AND ALL SUCH WARRANTIES ARE HEREBY EXPRESSLY DISCLAIMED.
SELLER SHALL NOT BE LIABLE FOR ANY INCIDENTAL, SPECIAL OR CONSEQUENTIAL COSTS OR DAMAGES
INCURRED BY PURCHASERS OR OTHERS (including, without limitations, lost profits, revenues, and
anticipated sales, business opportunities or goodwill, or interruption of business and any other injury or
damage).
This warranty does not cover (and separate charges for parts, labor and related expenses shall apply to)
and damage to, malfunctioning, inoperability or improper operation of the Equipment caused by, resulting
from or attributing to (A) abuse, misuse or tampering; (B) alteration, modification or adjustment of the
Equipment by other than Seller’s authorized representatives; (C) installation, repair or maintenance (other
than specified other than Seller’s authorized representatives); (D) improper or negligent use, application,
operation, care, cleaning, storage or handling; (E) fire, water, wind, lightening or other natural causes;
(F) adverse environmental conditions, including, without limitation, excessive heat, moisture, corrosive
elements, dust or other air containments, radio frequency interference, electrical power failure, power
line voltages beyond those specified for the Equipment, unusual physical, electrical or electromagnetic
stress and/or any other condition outside Seller’s environmental specifications; (G) use of the Equipment
in combination or connection with other equipment, attachments, supplies or consumables not
manufactured or supplied by Seller; or (H) failure to comply with any applicable federal, state or local
regulation, requirement or specification governing lifting equipment and related supplies.
Repairs or replacements qualifying under this Warranty will be performed on regular business days during
Seller’s normal working hours within a reasonable amount of time following purchaser’s request. All
requests for Warranty service must be made during the stated Warranty period. Proof of purchase date is
required to make Warranty request. This Warranty is nontransferable.
Snap-on Tools, Kenosha, Wisconsin 53141-1410
Technical Support and Service US: 877-762-7664
Canada: 866-824-0524
Made in USA
Snap-on is a trademark of Snap-on Incorporated.
©2019 Snap-on Incorporated, Printed in USA
Snap-on, 2801 80th St., Kenosha, WI 53143
www.snapon.com
8
INTRODUCCIÓN
SVTS263A
DISPOSITIVO DE PRUEBA DEL
TALLER DEL SISTEMA
DE REFRIGERACIÓN
9
El juego de dispositivo de prueba del sistema de enfriamiento por aire del taller
SVTS263A contiene una bomba de presión y los 3 adaptadores más comunes.
Este probador utiliza el aire comprimido del taller para presurizar el sistema de
enfriamiento.
ÍNDICE
Español
Información de seguridad.......................................................11
Instrucciones.........................................................................12
Piezas de servicio...................................................................15
Garantía................................................................................16
10
Table of contents
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