Snap-On SVTS272A User manual
SVTS272A
SVTS272A-1
COOLANT SYSTEM TESTER
The SVTS272A Cooling System Pressure Test Set contains a pressure pump and
the 4 most common adaptors.
Note: Always wet the rubber gasket of the adaptor and tester head before
attaching to the cooling system.
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
• 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.
• Hot pressurized antifreeze/coolant can cause injury
Do not open or work on system when hot.
Removing the radiator cap while the system is hot
may cause the coolant to boil instantly, spewing
coolant over the engine, fenders and persons nearby.
COOLING SYSTEM TESTING
ONLY WORK ON A COOL ENGINE!
1. With the radiator cool, carefully remove the pressure cap from 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. Once the tester head is attached to the radiator/adaptor, operate the pump
until the gauge indicates the rated pressure of the system being tested.
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
kilopascal).
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 pump onto system.
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. So 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
* SVTS272A-1 Cooling system Tester Pump
(#1-5) in cardboard box
* SVT262-23 Plastic Carrying Case (not shown)
1 SVTS272A-2 Heavy Duty Pressure Gauge with Rubber Boot
2 SVTS272A32 Pump Assembly with knob (gauge not included)
3 SVTS272A-3 Knob only
4 SVTS27233 Tester Head with Hose Assembly
Note: Hose may be field repaired - use 3/16” ID fuel hose
5 SVT262-19 Tester Seal
6 SVT262-22 Spacer Washer (1/4” thick rubber washer for 1” deep filler necks)
7 SVT262-28A 32mm x 16mm deep Radiator Adaptor with Seal, Silver
8 TA38C 32mm x 9mm deep Radiator Adaptor with Seal, Gold
9 SVT262-30 Rubber Seal for 32mm Radiator Adaptor
10 TAB10036 Radiator Adaptor with Seal
11 TA10036G Rubber Seal for #TAB10036
12 TA10052R Rubber O-ring for #TAB10036/TAB10052
13 TAB10052 Radiator Adaptor with Seal
4
5
6
10
7
9
8
11
12
13
1
2
3
4
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, in operability 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.
©2020 Snap-on Incorporated, Printed in USA
Snap-on, 2801 80th St., Kenosha, WI 53143
www.snapon.com
8
INTRODUCCIÓN
SVTS272A
SVTS272A-1
DISPOSITIVO DE PRUEBA DEL
SISTEMA DE ENFRIAMIENTO
9
El juego de prueba de presión del sistema de enfriamiento SVTS272A incluye una
bomba de presión y los 4 adaptadores más comunes.
Nota: Siempre humedezca la junta obturadora de goma del adaptador y el cabezal
del dispositivo de prueba antes de unirlo al sistema de enfriamiento.
ÍNDICE
Español
Información de seguridad.......................................................11
Instrucciones.........................................................................12
Piezas de servicio...................................................................15
Garantía................................................................................16
10
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