ZEESE336A Rev. A - Snap

ZEESE336A Rev. A - Snap
USER’S MANUAL
Coolant
Exchange™
Drain and Fill
with Continuous Flush
Snap-on Coolant Exchange
User’s Manual
Table of Contents
Table of Illustrations
Safety ................................................ 2
Introduction ...................................... 5
Introduction
Functional Description ..............................
Front Panel ........................................
Back Panel ........................................
Control Panel ......................................
Accessories ........................................
Control Panel Key Terms ....................
Specifications ..........................................
5
5
6
6
6
7
7
Installation and Operation .............. 7
Testing Tips ........................................ 7
Valve Position Chart ................................ 8
Tank Scale and Capacity ..........................10
Preparing Vehicle for Service .................. 11
Pressure Test .......................................... 10
Drain and Fill .......................................... 12
Continuous Flush .................................... 14
Power Drain Recovery Tank .................... 15
Recycle Used Coolant from
Recovery Tank ...................................... 15
Maintenance .................................... 15
Recovery Hose Strainer ............................
Cleaning Recovery Hose Strainer ..........
Cleaning New Coolant Supply
Filler Neck Screen ................................
Changing Filter Cartridges on
Optional Recycler Hit ............................
Replacement Parts ................................
Optional Accessories ........................
Troubleshooting ......................................
16
16
16
17
17
17
18
Figure 1: Front Panel .............................. 5
Figure 2: Back Panel .............................. 6
Figure 3: Control Panel ............................6
Figure 4: Snap-on Coolant Exchange™
Accessories ............................................ 6
Installation and Operation
Figure 5: Recovery and Supply Tank Sight
Tube Level Indicators .......................... 10
Figure 6: Recovery Hose and Adapter
Attached to Radiator ............................ 11
Table 1: Cooling System Pressure
Ranges .................................................. 12
Maintenance
Figure 7: Pinched Off Overflow Hose ...... 13
Figure 8: Strainer Assembly .................. 16
Figure 9: Filler Neck and Screen .......... 16
Trademark Acknowledgements
Snap-on® is a registered trademark of Snap-on
Technologies, Inc. (USA and Canada)
EquiServ® is a registered trademark of Snap-on
Tools Company. (USA)
EquiServ® is a registered trademark of Snap-on
Technologies, Inc. (Canada)
Snap-on Coolant Exchange™ is a trademark of
Snap-on Technologies, Inc. (USA and Canada)
Copyright Information
Snap-on Coolant Exchange™ User’s Manual
©2003 Snap-on Technologies, Inc.
The information, specifications and illustrations in
this manual are based on the latest information
available at the time of printing. Snap-on
Technologies, Inc. reserves the right to make
changes at any time without notice.
1
Safety Information
Safety Information
Safety Notice
For your safety, read this manual thoroughly
before operating your Snap-on Coolant
Exchange™ unit.
Your Snap-on Coolant Exchange™ unit is
intended for use by properly trained, skilled
professional automotive technicians. The
safety messages presented below and
throughout this user's manual are reminders
to the operator to exercise care when using
this unit.
There are many variations in procedures,
techniques, tools, and parts for servicing
vehicles, as well as in the skill of the
individual doing the work. Because of the
vast number of test applications and
variations in the products that can be
serviced with this instrument, Snap-on®
cannot possibly anticipate or provide advice
or safety messages to cover every situation.
It is the automotive technicians responsibility
to be knowledgeable of the system that is to
be tested. It is essential to use proper
service methods and test procedures and to
perform tests in an appropriate and
acceptable manner that does not endanger
your safety, the safety of others in the work
area, the vehicle or equipment being tested.
It is assumed that the operator has a
thorough understanding of vehicle cooling
systems before using the Snap-on Coolant
Exchange™ unit. This understanding of
principles and operating theories is
necessary for competent, safe and accurate
use of this instrument.
Before using your Snap-on Coolant
Exchange™ unit, always refer to and follow
the safety messages and applicable test
procedures provided by the manufacturer of
the vehicle or equipment being tested.
Read All Instructions
Read, understand and follow all safety
messages and instructions in this manual.
Safety messages in this section of the
manual contain a signal word with a threepart message and, in some instances, an
icon.
2
The signal word indicates the level of the
hazard in a situation.
DANGER
Indicates an imminently hazardous situation
which, if not avoided, will result in death or
serious injury to the operator or bystanders.
WARNING
Indicates a potentially hazardous situation
which, if not avoided, could result in death or
serious injury to the operator or bystanders.
CAUTION
Indicates a potentially hazardous situation
which, if not avoided, may result in moderate
or minor injury to the operator or bystanders.
IMPORTANT
Indicates a situation which, if not avoided,
may result in damage to the equipment or
vehicle.
Safety messages in this section contain three
different type styles.
• Normal type states the hazard.
• Bold type states how to avoid the hazard.
• Italic type states the possible
consequences of not avoiding the hazard.
An icon, when present, gives a graphical
description of the potential hazard.
Safety Information
IMPORTANT SAFETY
INSTRUCTIONS
General
WARNING
Risk of fire.
• Wear safety goggles and protective
gloves, user and bystander. Everyday
eyeglasses only have impact resistant
lenses, they are NOT safety glasses.
• Do not position head directly over or in
front of carburetor or throttle body.
Engine backfire can occur when air
cleaner is out of normal position.
• Keep a dry chemical (Class B) fire
extinguisher rated for gasoline,
chemical electrical fires in the work
area.
Fire can cause death or serious injury.
WARNING
Risk of entanglement.
• Do not place test equipment or tools on
fenders or other places in engine
compartment.
• Keep yourself, clothing and tester leads
clear of moving parts such as fan
blades, pulleys, hood and doors.
• Barriers are recommended to help
identify danger zones in test area.
• Prevent personnel from walking
through immediate test area.
Contact with moving parts can cause injury.
WARNING
Risk of expelling fuel, oil vapors, hot steam,
hot toxic exhaust gases and other debris.
• Wear safety goggles and protective
clothing, user and bystander.
• Engine systems can malfunction
expelling fuel, oil vapors, hot steam, hot
toxic exhaust gases and other debris.
Fuel, oil vapors, hot steam, hot toxic
exhaust gases, and other debris can cause
serious injury.
WARNING
Risk of burns.
• Do not touch hot exhaust systems,
manifolds, engines, radiators, etc.
• Wear gloves when handling hot engine
components.
Hot components can cause injury.
WARNING
Risk of unexpected vehicle movement.
• Block drive wheels before performing a
test with engine running.
• Unless instructed otherwise, set
parking brake and put gear selector in
neutral for standard transmissions or
park for automatic transmissions.
• If vehicle has an automatic parking
brake release, disconnect release
mechanism for testing and reconnect
when testing is completed.
• Do not leave a running engine
unattended.
A moving vehicle can cause injury.
WARNING
Risk of burns.
Do not remove radiator cap unless engine
is cold. Pressurized engine coolant may
be hot.
Burns can cause injury.
3
Safety Information
WARNING
Misdiagnosis may lead to incorrect or
improper repair and/or adjustment.
Do not rely on erratic, questionable, or
obviously erroneous test information or
results. If test information or results are
erratic, questionable, or obviously
erroneous, make sure that all connections
and data entry information are correct and
that the test procedure was performed
correctly. If test information or results are
still suspicious, do not use them for
diagnosis. Contact Snap-on® customer
services.
Improper repair and/or adjustment may
cause vehicle or equipment damage or
unsafe operation.
WARNING
Using this Manual
This manual contains instructions for use and
setup of your Snap-on Coolant Exchange™
unit. A table of contents and table of
illustrations are provided to make this
manual easy to use.
Some of the information shown in text or
illustrations is obtained using optional
equipment.
Conventions
This section contains a list of conventions
used in text.
Check Note
A check note provides additional information
about the subject in the preceding
paragraph.
Example:
Risk of flying particles.
• Wear safety goggles user and
bystander. Rotating engine parts can
cause flying particles.
• Make sure gauge reads zero before
connecting or disconnecting hose
connections to adapters.
• Make sure cooling system pressure has
been relieved before connecting or
disconnecting hose connections and
adapters.
• Make sure gauge reads zero before
removing supply tank cap.
Flying particles can cause eye injury.
SAVE THESE INSTRUCTIONS
4
✓ A pulsating recovery hose is a
normal condition while draining.
Equipment Tips
Equipment tips provide information that
applies to specific equipment. Each tip is
introduced by this icon ❐ for easy
identification.
Example:
❐
When servicing coolant systems, the
coolant in the overflow bottle should
also be removed. Use the suction wand
to remove the coolant.
Safety Information / Introduction
Safety Messages
Safety messages are provided to help
prevent personal injury and equipment
damage. All safety messages are
introduced by a signal word indicating the
hazard level. The types of safety messages
are:
DANGER
Indicates an imminently hazardous
situation which, if not avoided, will result
in death or serious injury to the operator
or to bystanders.
WARNING
Indicates a potentially hazardous situation
which, if not avoided, could result in death
or serious injury to the operator or to
bystanders.
CAUTION
Introduction
The Snap-on Coolant Exchange™ unit,
part number EESE336A, is a device that
removes and refills engine coolant and also
pressure tests the cooling system. Coolant
is extracted and refilled through the upper
radiator hose connection without the vehicle
engine running. Before coolant refill, a
vacuum is applied to the cooling system to
eliminate any air in the system. This
coolant unit also has the capability to flush
the cooling system for an extended amount
of time, using water from an external
source.
Functional Description
Front Panel
Indicates a potentially hazardous situation
which, if not avoided, may result in
moderate or minor injury to the operator
or to bystanders.
Some safety messages also contain visual
symbols with signal words.
Example:
WARNING
Engine systems can malfunction expelling
fuel, oil vapors, hot steam, hot toxic exhaust
gases, acid, refrigerant and other debris.
Wear safety goggles and protective
gloves, user and bystander. Everyday
eyeglasses only have impact resistant
lenses, they are NOT safety glasses.
Engine systems that malfunction can cause
injury.
Figure 1: Front Panel
A — New Coolant Supply Tank Fill Port
Filler neck for supply tank reservoir.
B — New Coolant Supply Tank Sight Tube
Sight tube used to determine level of fresh
coolant in supply tank.
C — Old Coolant Recovery Tank Sight Tube
Sight tube used to determine level of used
coolant in recovery tank.
D — Control Panel
Houses air regulator valve, pressure gauge
and control valves A and B.
E — Tray
Use for tool and adapter storage.
5
Introduction
A — Control Valve A
Back Panel
Switches Snap-on Coolant Exchange™ unit
between DRAIN, VACUUM/TEST, FLUSH,
and FILL operations.
B — Control Valve B
Switches Snap-on Coolant Exchange™ unit
between NORMAL and RECYCLE
operations.
C — Air Regulator Valve
Used to regulate air pressure applied to
cooling system.
D — Air Pressure/Vacuum Gauge
Used to monitor pressure and vacuum
applied to cooling system.
Accessories
Figure 2: Back Panel
A — Supply Tank Hose (blue) and Valve
B — Recovery Tank Hose (red) and Valve
C — Recovery Hose Strainer
Strainer used to filter large contaminants
from recovered coolant.
D — Power Drain Hose and Valve
Used for draining of recovery tank.
E — Air Inlet Valve
Switches shop air supply ON or OFF.
F — Flush Water Inlet Hose and Valve
Used to connect water supply hose to
Snap-on Coolant Exchange™ unit.
Figure 4: Snap-on Coolant Exchange™ Accessories
A — Suction Wand
Control Panel
Used to extract coolant from radiator or
surge tank to lower coolant level.
B — Hose Pinch Pliers
Small, medium and large pliers. Used to
pinch-off hoses.
C — Multi-size Hoses and Adapters
Used to connect recovery (red) and supply
(blue) hoses to the vehicle cooling system.
Adapters sizes are 1-1/4, 1-3/8, 1-1/2,
1-3/4, and 28mm (1-1/8”).
D — Flush Water Drain Hose (not shown)
Use to drain water from the vehicle during
the continuous flush operation.
Figure 3: Control Panel
6
Introduction / Installation and Operation
Control Panel Key Terms
Use the following definitions for a
description of control panel figures.
Specifications
Dimensions
Height
41.5”
Width
33”
Depth
25.75”
Weight
123 lbs (tanks empty)
REGULATOR
Changes the air pressure setting higher or
lower.
— Pull knob out to unlock position.
— Push knob in to lock position.
Control Valve A
DRAIN
Air pressure is applied to the supply hose
(blue) to assist in cooling system draining or
to apply pressure for the pressure test.
VACUUM/TEST
The supply hose (blue) is closed to allow a
vacuum to evacuate the remainder of the
coolant in the cooling system during the
drain process, or to isolate the cooling
system during the pressure test.
FILL
New coolant from the supply tank is directed
through the supply hose to fill the cooling
system.
FLUSH
The unit is in the Continuous Flush mode. A
flush operation can be conducted with an
external water supply for an unlimited
amount of time.
Control Valve B
NORMAL
The unit is in the mode for all drain and fill
operations, including suction wand, pressure
test, and flush.
RECYCLE
The unit is in the mode for draining the
recovery tank or directing its contents
through the optional recycler kit.
Power
Compressed shop air
90 PSI Maximum Input Pressure
Operating Temperature
35° to 120°F (1.7° to 48.9°C)
Storage Temperature (Tanks Empty)
-4° to 150°F (-20° to 65.5°C)
Installation and Operation
Testing Tips
❐ When servicing coolant systems, the coolant in
the overflow bottle should also be removed
and the bottle flushed with clean water. Use
the suction wand to remove the coolant.
❐ When performing a Pressure Test, if coolant
seeps into the overflow bottle before the
system is at the pressure specified on the
radiator cap, the pressure relief valve is bad
and the radiator cap needs to be replaced.
❐ Always remove and inspect the underside of
the radiator cap for cracked seal, damaged
spring or excessive rust or contamination.
❐ DO NOT OVER FILL THE SYSTEM.
❐ Always refer to manufacturer’s capacity
specifications to properly fill systems.
❐ Normal expansion rate for coolant is 4–7%.
Fill overflow bottle after the engine reaches
normal operating temperature to assure
system will not be overfilled. An overfilled
system will seep any additional coolant
during normal system expansion.
❐ When looking for coolant leaks:
— Check all hose connections prior to, in
operation, and after all tests are
performed.
— Check heater core, water pump*,
thermostat housing, freeze plugs, and
radiator for any visible leaks.
* Water pumps are sometimes located
under timing belt covers.
— If leaks are evident, but no visible leaks
are found, check the internal engine.
The leak may be from a cracked head,
head gasket, intake, etc.
7
Installation and Operation
Valve Position Chart
Refer to this quick reference for correct valve positions during
operations.
Valve A
SUCTION WAND
DRAIN
EVACUATE
HOLD VACUUM
FILL
8
Valve B
Supply Hose Recovery Hose
(blue) Valve
(red) Valve
CLOSED
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
CLOSED
OPEN
CLOSED
Installation and Operation
Valve A
Valve B
Supply Hose Recovery Hose
(blue) Valve
(red) Valve
TOP OFF
COOLING SYSTEM
OPEN
CLOSED
PRESSURE TEST –
APPLY PRESSURE
OPEN
CLOSED
PRESSURE TEST –
HOLD PRESSURE
OPEN
CLOSED
OPEN
CLOSED
CLOSED
CLOSED
✓
Flush water inlet hose valve must be closed during
all of the preceding operations.
CONTINUOUS
WATER FLUSH
✓
Recovery tank drain hose valve must be closed during
all the preceding operations.
DRAINING THE RECOVERY TANK
or
RECYCLING USED COOLANT
(If equipped with optional recycler kit.)
✓
Recovery tank drain hose valve must be open and
Valve B must be in the RECYCLE (down) position
during this operation.
9
Installation and Operation
Tank Scale and Capacity
Figure 5: Recovery and Supply Tank Sight Tube Level Indicators
— Tank Capacity = 32 quarts
— Do not overfill the Supply/Recovery Tanks
— If Recovery Tank becomes full an internal check valve
will close and shut off vacuum to recovery tank and hose
to prevent spillage.
Example of Use
Vehicle cooling system capacity:
8 quarts*
New coolant supply tank level indicator reading is:
20 quarts
Add fresh coolant to the vehicle until the level indicator shows 12 quarts remaining
✓
The amount of coolant that goes into the vehicle equals the amount of coolant that
goes into the recovery tank. Verify that the recovery tank is not full and that there is
enough room to complete a Drain and Fill process.
*Always refer to manufacturer’s capacity specifications to properly fill systems.
10
Installation and Operation
Preparing Vehicle for Service
Engine cooling systems run at high
temperatures and pressures. Allow coolant
system to cool before attempting service.
✓
10. Disconnect upper radiator hose from
radiator, thermostat housing, or intake
manifold.
11. Connect recovery hose (red) and adapter
to radiator side of disconnected radiator
or hose. See Figure 6.
Pressurized engine coolant may be
hot and cause injury.
1. Remove radiator or surge tank cap after
coolant system has cooled.
Pressure Test
Perform a pressure test on vehicle cooling
system before draining or refilling the system.
Follow this procedure to pressure test the
cooling system. Refer to Valve Position
Chart in this section for proper valve
positioning during operations.
1. Follow the steps in Preparing Vehicle for
Service.
2. Close all hose valves and air inlet valve
on Snap-on Coolant Exchange™ unit.
3. Turn Valve A to
DRAIN position.
4. Turn Valve B to
NORMAL position.
✓
Always keep manual valve on
optional recycler kit in the BYPASS
position, except when recycling
coolant.
5. Pull to unlock air regulator knob and turn
counterclockwise until it stops. Connect
shop air to Snap-on Coolant
Exchange™ unit.
✓
Maximum input air pressure should
not exceed 90 PSI (620.5 kPa).
6. Attach suction wand to the recovery hose
(red).
7. Open air inlet valve and recovery hose
valve. See page 6, Figure 2.
8. Use suction wand to extract coolant from
radiator or surge tank until coolant level is
below upper radiator hose port.
9. Close recovery hose valve.
— Close air inlet valve if desired to
reduce noise.
Figure 6: Recovery Hose and Adapter Attached to Radiator
A – Recovery Hose (red)
B – Supply Hose (blue)
12. Connect supply hose (blue) and adapter
to engine side of disconnected radiator
hose. See Figure 6.
13. Replace radiator or surge tank cap.
14. Open air inlet valve and supply hose (blue)
valve.
— Make sure recovery hose (red) valve
remains closed.
15. SLOWLY turn the air regulator knob
clockwise until gauge pressure reaches the
cooling system pressure rating.
— Cooling system pressure rating can
be found on radiator cap, or verify
rating in owner’s manual or factory
repair manual.
✓
Never exceed manufacturer’s rated
pressure
16. Turn Valve A to VACUUM/TEST position
when gauge reads the specified pressure
and inspect cooling system for leaks.
If Leak is Found
1. Close air inlet valve on rear of unit.
2. Turn Valve A to
DRAIN position.
3. Close supply hose
(blue) valve when gauge reads zero.
11
Installation and Operation
4. Drain coolant from vehicle cooling system
using the Snap-on Coolant Exchange™
unit and refer to Drain and Fill in this
section.
✓
DO NOT refill the system; skip “fill”
instructions.
5. Disconnect Snap-on Coolant
Exchange™ unit from vehicle and repair
leak.
6. After leaks are repaired, repeat Pressure
Test.
If No Leaks are Found but Pressure Gauge
Drops
1. Observe pressure gauge.
2. Pressure should not drop below pressure
indicated in Table 1 after 1 minute.
— No pressure drop, proceed to Drain
and Fill in this section.
3. If pressure drops, check radiator and/or
surge tank cap(s) for inadequate holding
capacity.
— If air or coolant is venting into overflow
reservoir or out of the surge tank at
pressures below those specified in
Table 1, replace the radiator or surge
tank cap.
4. If pressure drops and radiator or surge
tank cap is okay, a leaky head gasket or
other internal engine problem may exist.
— Consult factory service and diagnosis
procedures for vehicle cooling system.
5. Disconnect Snap-on Coolant
Exchange™ unit from vehicle and repair
leak.
6. After leaks are repaired, repeat Pressure
Test.
If No Leaks are Found and Pressure Gauge is
Stable
1. Pressure test is complete.
2. Close air inlet valve on rear of unit.
3. Turn Valve A to DRAIN position.
4. Perform Drain and Fill if desired.
12
Radiator or Surge Cap
Pressure Ranges
Cap
Rating
4 PSI Cap
7 PSI Cap
10 PSI Cap
13 or 14 PSI Cap
15 or 16 PSI Cap
18 PSI Cap
20 PSI Cap
30 PSI Cap
Minimum
Pressure
3 lbs
6 lbs
9 lbs
12 lbs
14 lbs
16 lbs
18 lbs
28 lbs
Subtract one lb from lbs reading for used caps.
e.g.: 15 or 16 PSI Cap would be 13 lbs.
Table 1: Cooling System Pressure Ranges
Drain and Fill
Conventional Thermostat Location
Follow this procedure to drain and fill the
cooling system.
✓
Check filter screen on recovery
hose (red) to make sure it is free of
debris or other contaminants, refer
to Maintenance section.
1. Turn the air regulator valve
counterclockwise until it stops.
2. Verify recovery tank of Snap-on Coolant
Exchange™ unit is not full and there is
enough room left to complete a Drain and
Fill process.
3. Verify supply tank level of Snap-on
Coolant Exchange™ unit is adequate
enough to complete a Drain and Fill
process.
✓
✓
Add the proper mixture of
antifreeze/coolant and water to new
coolant supply tank fill port.
Check vehicle owner’s manual for
cooling system capacity.
Installation and Operation
4. Pinch off overflow hose between radiator
neck and overflow reservoir with supplied
hose pinch pliers.
12. Turn Valve A clockwise to VACUUM/TEST
position when stream of old coolant
stops.
✓
Cooling system hoses will collapse.
13. When vacuum gauge reading reaches
13–17 in. Hg., close recovery hose (red)
valve.
— Gauge should not deviate from 13–17
in. Hg. If gauge reading drops, check
system for leaks.
— In some instances the vacuum gauge
reading will not reach 13–17 in. Hg.
due to the upper or lower radiator
hose collapsing. If this occurs continue
to step 14.
Figure 7: Pinched Off Heater Return Hose
✓
On vehicles with a heater return
hose connected to the radiator,
pinch off heater hose also. This is
required to ensure that the drain
and fill process does not bypass the
engine block by going through the
heater core.
— Use two or three hose pinch pliers to
pinch off hoses connected to surge
tank, including the overflow hose
connected to the surge tank neck, if
applicable.
5. Make sure all tester hose valves are
closed.
6. Make sure adapters and hoses are
connected to vehicle as described in
Pressure Test on page 11.
14. Turn Valve A clockwise to FILL position.
A rush of new coolant will pass through
the supply hose and into vehicle’s cooling
system.
15. When gauge reads 8–12 PSI, open
recovery hose (red) valve to allow more
old coolant to flow out of vehicle cooling
system.
16. Close recovery hose (red) valve when
coolant flow through recovery hose turns
from old to new coolant.
17. Close supply hose (blue) valve.
18. Remove recovery hose (red) and supply
hose (blue) quick couplers from adapters.
— Open recovery hose (red) valve for
about 2 seconds to bring coolant level
low enough to remove adapters with
minimal spillage.
7. Turn Valve A to
DRAIN position.
19. Reinstall upper radiator hose to the
engine/radiator.
8. Turn Valve B to
NORMAL position.
20. Remove radiator or surge tank cap.
✓
Always keep manual valve on
optional recycler kit in the BYPASS
position, except when recycling
coolant.
9. Open air inlet valve on rear of unit.
10. Adjust air regulator to 8–12 PSI. See
Figure 3, C.
11. Open supply (blue) and recovery (red)
hose valves and observe old coolant
flowing through the recovery hose into
the recovery tank.
✓
A pulsating recovery hose (red) is a
normal condition while draining.
21. Remove all hose pinch pliers from hoses.
22. Fill overflow reservoir or surge tank with
new coolant to proper level.
23. Top off radiator with new coolant, if
applicable.
The supply hose (blue) can be used with
the suction wand to top off the cooling
system. To fill:
— Connect suction wand to end of
supply hose (blue).
— Turn Valve A to FILL position.
— Open air supply and supply hose
valves.
13
Installation and Operation
24. Reinstall radiator or surge tank cap.
✓
If cooling system contains a bleed
screw or cap, follow manufacturer’s
instructions to ensure the system is
properly purged of air.
25. Start vehicle engine and allow it to run
until it reaches normal operating
temperature and the thermostat has
opened.
— Verify vehicle’s heat is operating
properly while engine is running.
26. After coolant has cycled through the
engine, let the engine cool down and
recheck the freeze point of the coolant.
✓
Pressurized engine coolant may be
hot and cause injury.
Alternate Thermostat Location
On some vehicles the thermostat is located
at the point where the lower radiator hose is
connected to the engine.
1. These applications may require
connecting the recovery hose (red) to the
engine side and the supply hose (blue) to
the radiator side of the upper radiator
hose.
2. If insufficient coolant flow is observed in
the recovery hose (red) during drain
cycle:
— Close air inlet valve,
— Wait for gauge to read zero,
— Close both hose valves and
disconnect hoses from adapters,
— Reverse connection of hoses on
adapters, and
— Continue Drain and Fill process.
Continuous Flush
The Snap-on Coolant Exchange™ unit has
the capability to perform a continuous flush
with minimal connection changes. Follow this
procedure to perform a more thorough
cleaning than typically achieved with a simple
drain and fill operation, such as when
servicing contaminated or extremely dirty
systems, removing chemical cleaners, etc.
1. Follow steps 1–10 of Drain and Fill on
page 12 to remove contaminated coolant
from the vehicle’s system.
14
2. Turn Valve A counterclockwise to FLUSH
position when stream of old coolant
stops.
✓
Cooling system hoses will collapse.
3. When vacuum gauge reading reaches
13–17 in.Hg., close recovery hose (red)
valve.
— Gauge should not deviate from
13–17 in.Hg. If gauge reading drops,
check system for leaks.
— In some instances the vacuum gauge
reading will not reach 13–17 in.Hg.
due to the upper or lower radiator
hose collapsing. If this occurs
continue to step 4.
4. Disconnect recovery hose (red) from
vehicle, and connect Flush Drain Hose to
vehicle at the same point. Position other
end of hose to desired container to
collect flush water.
5. Connect the fresh flush water to the
Flush Water Inlet Hose on the rear of the
Snap-on Coolant Exchange™ unit. This
connection uses a standard garden hose
fitting.
✓
✓
Properly dispose of used flush
water.
Do not use hot water.
6. Open valve on Flush Water Inlet Hose on
the rear of the unit.
7. Allow flush operation to proceed until
water runs clear.
Vehicles with heater hoses attached to
engine
— Continuous flush will flush both the
engine and the heater core at the
same time. Be sure to set the vehicle
temperature controls to “heat” so that
any water control valves between the
engine and the heater are open.
Vehicles with heater hoses attached to
the radiator:
— Heater hose attached to the radiator
must remain pinched off until engine
flush is done, then remove the pinch
pliers to flush the heater core.
Reattach the pinch pliers to this hose
in step 10.
8. When finished flushing, close valve on
Flush Water Inlet Hose (rear of unit).
Installation and Operation / Maintenance
9. Disconnect Flush Drain Hose from
vehicle and reconnect the recovery hose
(red) at the same point.
10. Open recovery hose (red) valve and turn
Valve A to DRAIN position to resume the
drain and fill process. Observe flush
water flowing through the recovery hose
(red) into the recovery tank.
✓
✓
Reattach the pinch pliers to the
heater hose that is attached to the
radiator. Continue the Drain cycle
until all flush water is removed.
A pulsating recovery hose (red) is a
normal condition while draining.
11. Complete steps 12–26 of Drain and Fill
operation to complete the drain and fill
process.
Power Drain Recovery Tank
The recovery tank needs to be drained when
full. Shop air is diverted to the recovery tank
to assist the draining process. Follow these
steps to drain the recovery tank.
1. Close all hose valves on Snap-on
Coolant Exchange™ unit.
2. Turn Valve A to DRAIN position.
3. Turn Valve B to RECYCLE position.
✓
Always keep manual valve on
optional recycler kit in the BYPASS
position, except when recycling
coolant.
4. Turn the air regulator valve
counterclockwise until it stops.
Recycle Used Coolant from
Recovery Tank
Used coolant in the recovery tank can be
filtered using the optional Drain and Fill Addon Recycler Option Kit (see Optional
Accessories on page 17). If the optional
recycler kit is installed, follow these steps to
recycle coolant.
1. Follow steps 1–5 in Power Drain
Recovery Tank.
2. Turn manual valve on recycler kit to
RECYCLE position.
3. Position the end of drain hose to direct
filtered coolant into the new coolant
supply tank or other coolant collection
container.
4. Open drain hose valve and drain filtered
coolant.
✓
Add proper inhibitor additives to the
filtered coolant per manufacturer’s
recommendation.
5. When the old coolant recovery tank is
empty, close the valve on the recovery
tank drain hose and return the manual
valve on the optional recycling kit to the
BYPASS position.
Maintenance
Use this chapter to maintain the Snap-on
Coolant Exchange™ unit.
✓
Troubleshooting information and a
list of parts and accessories are
also included.
5. Connect shop air to the rear of the
Snap-on Coolant Exchange™ unit and
adjust air regulator valve to achieve
8–12 PSI.
6. Turn drain hose valve on the rear of the
unit ON and drain used coolant.
✓
Properly dispose or recycle used
coolant.
15
Maintenance
Recovery Hose Strainer
The Snap-on Coolant Exchange™ unit is
equipped with an inline filter/strainer on the
recovery hose (red). This reduces the amount
of debris entering the equipment. Excess
sludge, debris or chemical “stop leak” will
result in slow operation or malfunction of the
Snap-on Coolant Exchange™ unit.
4. Reinstall strainer screen, rubber gasket
and strainer bowl. Strainer bowl should
be installed onto housing finger tight.
✓
Do not overtighten strainer bowl.
The recovery hose (red) strainer screen
needs to be inspected after every Drain and
FIll operation. It should be cleaned as soon
as visible sludge or debris is present on the
screen, refer to Cleaning Recovery Hose
Strainer.
✓
Failure to clean the screen will
result in debris buildup on the
screen which will allow little or no
coolant to pass through, and slow
down or stop the drain cycle from
working.
WARNING
DO NOT OPERATE THE UNIT WITH THE
STRAINER SCREEN REMOVED. Operation
of the unit without the filter/strainer
screen in place will allow sludge, debris,
or chemical “stop leak” to enter the unit
and possibly cause clogging of the unit
internally.
Cleaning Recovery Hose
Strainer
Figure 8: Strainer Assembly
Cleaning New Coolant Supply
Filler Neck Screen
Used to protect against debris or other
foreign objects that may fall into the new
coolant supply tank. Foreign objects should
be removed as soon as visible. Follow this
procedure to clean the filler neck screen, if
necessary.
The recovery hose (red) strainer screen
needs to be inspected after every Drain and
FIll operation. It should be cleaned as soon
as visible sludge or debris is present on the
screen. Follow this procedure to clean the
strainer screen.
1. Unscrew strainer bowl from housing.
✓
Be careful not to lose rubber bowl
gasket.
2. Remove strainer screen and clean with
running water and/or wipe clean with a
shop towel.
✓
Be careful not to deform strainer
screen.
3. Clean rubber gasket if necessary.
16
Figure 9: Filler Neck and Screen
1. Lift screen from filler neck. Clean with
running water and/or wipe clean with a
shop towel.
✓
Be careful not to deform filler neck
screen.
2. Reinstall filler neck screen into filler neck.
✓
Make sure screen falls flat in place.
Maintenance
Changing Filter Cartridges on
Optional Recycler Kit
Change filter elements when coolant flow
becomes restricted.
✓
See chemical manufacturers
instructions for adding conditioners
to recycled coolant.
1. Relieve pressure in Recovery Tank as
follows:
— Turn Air Inlet Valve to OFF.
— Turn Valve A to DRAIN.
— Turn Valve B to NORMAL.
— Close both the red and blue vehicle
hose valves.
— Place recovery hose into a suitable
container to catch fluid.
— Slowly open the recovery hose (red)
valve to relieve pressure at the filters.
— Allow pressure to completely vent,
then close recovery hose (red) valve.
2. Carefully remove filter housing (housing
will be full of fluid). Use the supplied
filter wrench to loosen if necessary.
3. Discard used filter cartridges. Rinse out
filter housings.
4. Clean o-ring on housing if necessary and
make sure it is properly seated in the
groove.
5. Insert the new filter cartridges, making
sure the 20 micron filter is on the left and
the 5 micron filter is on the right, when
viewed from the rear.
6. Screw filter housings onto caps and
hand-tighten. DO NOT OVERTIGHTEN.
Replacement Parts
Part Number
Description
EAA0196L47AR .................... Suction Wand
Assembly
EAA0195L31AR .............. Radiator Adapter
Assembly 28mm (1-1/8”)
EAA0195L26AR .............. Radiator Adapter
Assembly 1-1/4” to 1-3/8”
EAA0195L27AR .............. Radiator Adapter
Assembly 1-1/2” to 1-3/4”
8-850 .................. Hose Pinch Pliers, Large
8-950 ................ Hose Pinch Pliers, Medium
8-1150.................. Hose Pinch Pliers, Small
5-06235A-030 .......... Rubber Coolant Hose,
1-1/8” I.D.
5-4835-030 .............. Rubber Coolant Hose,
1-1/4” I.D.
5-4935-030 .............. Rubber Coolant Hose,
1-3/8” I.D.
5-5035-030 .............. Rubber Coolant Hose,
1-1/2” I.D.
5-5135-030 .............. Rubber Coolant Hose,
1-3/4” I.D.
EAK0239L05A ................ Strainer and Filter
Bowl Kit for Recovery Hose
(Includes Gaskets)
Optional Accessories
EAK0239L01B .......... Drain and Fill Add-on
Recycler Option Kit
1-12781A ............ 20 Micron Recycler Filter
1-12881 ................ 5 Micron Recycler Filter
1W12681 ............................ Filter Housing,
O-ring, and Cap
8-750 .................................... Filter Wrench
EAK0239L02A .......... Extended Adapter Kit
(for 2”, 2-1/4”, and
2-1/2” hose I.D.)
For service or to order replacement parts
contact EquiServ® or call 1-800-225-5786.
17
Maintenance
Troubleshooting
Symptom
Possible Cause
Remedy
Machine does not work,
works very slow, or gauge
pressure does not reach
desired reading
• Low or no shop air pressure
— Check shop air
pressure, 30–90 PSI
(206.8–620.5 kPa)
— Connect shop air hose
to air inlet valve
Gauge does not reach
desired vacuum during
evacuation cycle
Machine drains very little
or no coolant during drain
cycle
Machine does not
completely fill cooling
system with new coolant
18
• Shop air not connected to
machine
• Leaky hose or connection
— Check shop air and
Coolant Exchange™
hose connections and
fittings
• Supply tank fill cap off or not
tight
— Install or tighten filler
cap. check gasket
in cap
• Low shop air pressure
— Check shop air
pressure, , 30–90 PSI
(206.8–620.5 kPa)
• Hose(s) not pinched off on
surge tank or overflow tank
— Check all hoses
connected to surge
tank and/or overflow
are pinched off
and sealed
• Leaky hose or connection
— Check shop air, hose
connections, and
fittings
• Hose end valves not all closed
— Close all unused hose
end valves, such as
recovery tank drain
hose valve
• Recovery tank full
— Drain recovery tank
(The check valve on recovery
(refer to Power Drain
tank has closed, shutting off
Recovery Tank)
vacuum to recovery tank and hose)
• Recovery and supply hose
connections reversed
— Reverse recovery and
supply hose
connections (refer to
Drain and Fill)
• Recovery hose strainer is
blocked with debris
— Clean strainer (refer to
Cleaning Recovery
Hose Strainer)
• Supply tank level too low before
starting drain and fill process
— Add coolant to supply
tank and repeat drain
and fill cycle
• Manual valve on optional recycler
kit not in BYPASS position
— Place valve in
BYPASS position
One (1) Year Warranty
Professional Use
The Snap-on company distributing the equipment identified in this Operator's Manual ("Snap-on") provides the following
warranty to customers who purchased the equipment from an authorized Snap-on distribution channel for use in their
profession ("Buyer").
Snap-on warrants that the equipment will be free from defects in workmanship and materials for a duration of one (1) year
from the original invoice date. Consumable products are warranted, at the time of sale, only against defects in workmanship
and materials that prevent their use. Consumable products are goods reasonably expected to be used up or damaged during
use, including but not limited to drill bits, saw blades, grinding discs, sanding discs, knife blades, leads, probes, external
hoses, adapters, files, O2 sensors and batteries. Snap-on does not provide a warranty for accessories used with the
equipment that are not manufactured or distributed by Snap-on. This warranty only extends to the original Buyer and cannot
be transferred or assigned. No warranty is provided with filter elements.
During the stated warranty period, at its option, Snap-on will repair or replace the product which fails to give satisfactory
service due to defective workmanship or materials, or provide a refund by repaying or crediting Buyer with an amount equal
to the purchase price of the product. Repair, replacement or refund shall be at the sole election and expense of Snap-on,
and is Buyer's exclusive remedy in place of all other rights and remedies. To obtain warranty service, contact Snap-on, or a
Snap-on representative or dealer. All requests for warranty service must be made during the stated warranty period and
proof of purchase must be provided with all warranty service requests. By repairing or replacing the product, or providing a
refund, Snap-on does not waive a claim that the product nevertheless has been subject to abnormal use.
Snap-on does NOT provide any warranty for product subjected to "abnormal use". "Abnormal use" includes misuse,
accident, modification, alteration, unreasonable or improper use, abuse, neglect, lack of maintenance, use in product-related
service, or use after the equipment is significantly worn. Further, this warranty does NOT cover any damage to, or
inoperability or improper operation of the product caused by, resulting from or attributable to (1) installation or maintenance;
(2) fire, water, wind, lightning or other natural causes; (3) damage caused by adverse environmental conditions, including
without limitation, excessive heat, moisture, corrosive elements, dust or other air contaminants, radio frequency interference,
electric power failure, power line voltages beyond those specified for the equipment, unusual physical, electrical or
electromagnetic stress and/or any other condition outside of Snap-on's environmental specifications; (4) use of the product in
combination or connection with other equipment, attachments, supplies or consumables not manufactured or distributed by
Snap-on; or (5) failure to comply with any applicable federal, state of local regulation, requirement or specification governing
emission analyzers and related supplies or consumables.
THE FOREGOING WARRANTY IS IN LIEU OF AND EXCLUDES ALL OTHER WARRANTIES NOT EXPRESSLY SET
FORTH HEREIN, WHETHER EXPRESS OR IMPLIED BY OPERATION OF LAW OR OTHERWISE, INCLUDING BUT NOT
LIMITED TO ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
Snap-on and its affiliated companies shall not be liable for any incidental, special or consequential losses, costs or damages
incurred by Buyer or others, directly or indirectly arising from the sale, handling or use of the products, or from any other
cause with respect to the products or this warranty, whether such claim is based upon breach of contract, breach of warranty,
strict liability in tort, negligence or any other legal theory (including without limitation, lost profits, revenues, anticipated sales,
business opportunities, goodwill, or interruption of business or other injury or damage).
To the extent allowed by applicable law, this warranty and all rights and obligations hereunder, including matters of
construction, validity and performance, shall be governed by the substantive laws of the State of Wisconsin, without giving
effect to the principles of conflicts of law thereof.
The Snap-on Warranty Information Center
2801 80th Street
Kenosha, Wisconsin 53143
ZEESE336A Rev. A
©2003 SNAP-ON TOOLS COMPANY
Printed in U.S.A.
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