Wynn's EW76501 User manual

40200823 (REV.03)
©2019 ITW Professional Automotive Products Inc. All rights reserved • 3606 Craftsman Blvd. • Lakeland FL 33803 • equipment.wynnsusa.com
EW76501
Coolant Exchange Machine
Operations Manual

©2019 ITW Professional Automotive Products Inc. All rights reserved • 3606 Craftsman Blvd. • Lakeland FL 33803 • equipment.wynnsusa.com
TABLE OF CONTENTS
INTRODUCTION TO THE MACHINE ........................................... 2
CUSTOMER SERVICE CONTACT INFO ..................................... 2
SAFETY INFORMATION ............................................................... 3
MACHINE SPECIFICATIONS & FEATURES ............................... 9
MACHINE OVERVIEW ................................................................ 10
OPERATING INSTRUCTIONS ................................................... 11
MAINTENANCE ........................................................................... 15
REPLACEMENT PARTS ............................................................ 16
WARRANTY INFORMATION ...................................................... 18

1
INTRODUCTION to the
Wynn’s Coolant Machine
Congratulations on the purchase of your Wynn’s Coolant Machine!
This 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’s engine running.
Simply put, this machine is the cleanest, safest and most thorough method of
radiator fluid exchange ever devised. Suddenly, cooling system maintenance has
become a more realistic proposition. Fluid exchanges are cleaner and neater
than ever!
Service neglect causes engine coolant to break down which can lead to the
engine freezing or overheating. Historically, cooling system fluid service has
been neglected, often due to the lack of a convenient method for providing such
flush or fluid exchange services. Previous methods for exchanging the cooling
system or replacing the coolant were time consuming and often inefficient or
incomplete. Now, it’s easier than ever to replace virtually all of the old coolant in
less than 8 minutes, to ensure your car’s cooling system has a long, trouble-free
life.
Please take time to read through this manual to familiarize yourself with the
machine before performing your first coolant exchange.
CUSTOMER SERVICE CONTACT INFORMATION
For product information, tech support, or to order replacement parts,
please call: 833-303-4644
or visit: equipment.wynnsusa.com

2
IMPORTANT SAFETY NOTICE
For your safety, read this manual thoroughly before operating this machine. This machine
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. Before using this machine, always refer to
and follow the safety messages and applicable service procedures provided by the
manufacturer of the vehicle being serviced.
• Read All Safety 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 three-part message
and, in some instances, an icon.
• Signal Words
The signal word indicates the level of the hazard in a situation:
Indicates an imminently hazardous situation which, if not avoided,
will result in death or serious injury to the operator or to bystanders.
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury to the operator or to bystanders.
Indicates a potentially hazardous situation which, if not avoided,
may result in moderate or minor injury to the operator or to bystanders.
Indicates a situation which, if not avoided, may result in damage
to the machine, or the vehicle being serviced.
• Safety Messages
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.

3
• Safety Symbols
A safety symbol, when present, gives a graphical description of the potential hazard,
and how to avoid the hazard:
Risk of Fire Read Instructions Before Use
Risk of Explosion Mandatory Eye Protection
Risk of Entanglement Mandatory Protective Gloves
Dangerous Fumes Mandatory Protective Clothing
Do Not Pull or Move Risk of Burns

4
IMPORTANT SAFETY INSTRUCTIONS
Engine exhaust contains toxic gases.
• Vent vehicle’s exhaust away from work area.
• Do not breathe exhaust.
Exhaust gases will cause injury or death.
Improper use and operation.
• Read, understand and follow all safety messages and operational procedures in this
manual before operating this machine.
• This equipment should be operated only by qualified personnel.
• Use this equipment only as described in this manual.
Improper use and operation of this product can result in injury.
Engine systems can malfunction expelling fuel, oil vapors, hot steam, hot toxic exhaust gases and
other flying particles.
• Wear safety goggles and protective clothing, 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.
• 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.
• Keep a dry chemical (Class B) fire extinguisher rated for gasoline, chemical & electric
fires in the work area.
Fire, explosion, or flying particles may cause serious injury.
Risk of expelling pressurized fluids.
• Wear safety goggles and protective clothing, user and bystander.

5
• Engine systems can malfunction, expelling fuel, oil vapors, hot steam, hot toxic exhaust
gases and other debris.
• Always unplug the machine from its power source when not in use.
• Keep the service hoses away from hot or moving engine parts. Hoses can split or burst
causing fluid to be expelled.
• Avoid contact with engine coolant.
• Treatment methods are as follows:
Eyes: Flush eyes with plenty of water.
Skin: Wash with soap and water.
Inhalation: Move to uncontaminated area.
Ingestion: If large amount, get medical attention.
If any irritation persists, get medical attention.
• Dispose of used fluid according to environmental laws and regulations.
Fuel, oil vapors, hot steam, hot toxic exhaust gases, pressurized fluid, and other debris can cause
serious injury.
Risk of unexpected vehicle movement.
• Block drive wheels before starting vehicle’s engine to begin an exchange.
• Unless instructed otherwise, set parking brake and put gear selector in park.
• Do not leave a running vehicle unattended.
• If vehicle has an automatic parking brake release, disconnect release mechanism for
testing and reconnect when testing is completed.
A moving vehicle can cause injury.
Risk of entanglement. Engine has moving parts.
• Do not place tools on fenders or other places in engine compartment.
• Keep yourself, clothing, battery cables and service hoses clear of moving parts such as
fan blades, belts, 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.
Risk of fire or explosion.
• Do not operate in the vicinity of open containers of flammable liquids such as gasoline.
• Keep hoses and jumper cables away from heat sources and sharp edges.
• Do not operate equipment with damaged cords or hoses until they have been examined
by a qualified serviceman.
Fire or explosion can cause injury.

6
Risk of fire or explosion. Gases produced by a battery are highly explosive.
• Wear safety goggles and protective clothing, user and bystander.
• Do not smoke, place metal tools on battery or allow a spark or flame in vicinity of battery.
Battery explosion can cause injury.
Risk of burns.
• Wear gloves when handling hot engine components.
• Do not remove radiator cap unless engine is cold.
• Pressurized engine coolant may be hot.
• Do not touch hot exhaust systems, manifolds, engines, radiators, etc.
Hot fluid and engine parts may cause injury.
Battery acid is a highly corrosive sulfuric acid.
• Wear safety goggles and protective gloves, user and bystander.
• Have plenty of fresh water and soap nearby. If battery acid contacts skin, clothing, or
eyes, flush exposed area with soap and water for 10 minutes.
• Do not touch eyes while working near battery.
Battery acid can burn eyes and skin.
Risk of burns.
• Wear gloves when working near hot engine components.
• Do not touch hot exhaust systems, manifolds, engines, radiators, etc.
• The fluid coming from the vehicle along with some of the machine’s components that the
fluid comes into direct contact with (i.e. hoses and fittings) may reach temperatures
uncomfortable to the touch. Exercise caution in avoiding contact with these items.
Hot components can cause injury or discomfort.

7
Risk of injury.
• This equipment should be operated by qualified personnel only.
• Use this equipment only as described in this manual.
• Always disconnect the machine from air source when not in use.
• Loop the pressure hose loosely in its proper location when machine is not in use.
• Do not operate equipment with a damaged hose, or if the equipment has been dropped or
damaged, until it has been examined by a qualified service representative.
• Care should be taken to arrange the service hoses so that they will not be tripped over or
pulled.
• Never pull on the service hoses to transport the machine. Damage may occur to these
components, or machine may tip over.
• Keep area of operation clear of unnecessary tools and equipment. Utilize recessed tool
storage areas on the top of the machine.
• Never leave the machine running unattended.
• This machine is not designed for any other purpose than the servicing of automotive
cooling systems.
Operation of this machine by anyone other than qualified personnel may result in injury.
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.
Improper repair and/or adjustment may cause vehicle or equipment damage or unsafe operation.
Risk of equipment damage.
• Servicing, transporting, or storing this machine in an attitude other than the normal
operating position can result in fluid spillage and/or component damage.
• Never pull on the service hoses to transport the unit. Damage may occur to these
components, or machine may tip over. Always use the handle to move.
• Periodically clean the machine by wiping down with a clean, soft, dry cloth.
Improper operation of equipment may result in damage to machine or components.
SAVE AND FOLLOW THESE INSTRUCTIONS!

8
MACHINE SPECIFICATIONS
Dimensions: 43” H x 24” W x 28” D
Weight: 95 lbs.
New Fluid Tanks:24 Qt.
Waste Fluid Tank: 24 Qt.
Power: 12V DC Power
FEATURES
The Wynn’s Coolant Exchange Machine helps extend the life of the cooling system components
by keeping it clean and functioning as efficiently as possible. When used with corresponding
Wynn’s products, the Coolant Exchange Machine helps facilitate dissolving harmful deposits,
suspending them in old coolant for easy removal.
✔Reverse Flow Operation for Complete Service with Engine Off
✔Disconnection is Performed with Coolant at Ambient Temperature
✔Coolant System Pressure Relief Feature for Safe Access to Hot Cooling System
✔Built-In Loop Mode
✔Automatic Shut-Off Upon Service Completion
✔EVAC Feature for Easy Fluid Removal in Overflow Tank
✔Quick-Connect Adapter System
✔Convenient, Portable Roll-Around Unit

9
MACHINE OVERVIEW

10
OPERATING INSTRUCTIONS
IMPORTANT: Machine needs 12V DC power to operate.
SAFETY RECOMMENDATIONS
Use extreme caution when working
around a running engine.
Always block the vehicle’s drive
wheels.
Ventilate the vehicle’s exhaust.
Always wear safety glasses.
It’s a good idea to wear insulated
gloves.
PREPARATION
Road test the vehicle at least one mile.
Make sure there are no problems with the
Engine Cooling System such as leaks, low fluid
level and soft or damaged hoses.
Connect battery cables to vehicle’s battery.
DEPRESSURIZE THE COOLING SYSTEM
Connect machine’s battery
cables to vehicle’s battery. The
green light on the machine will
illuminate.
Attach the machine’s RED
service hose to the waste fluid
nipple on the back of the
machine, and open the ball
valve.
Attach the machine’s BLACK
vacuum hose with open end
adapter to the vehicle’s
overflow nipple at the radiator
cap and open ball valve.

11
Turn the MODE SELECTION
dial to EVAC.
Press and hold switch in the
TOP OFF position.
At this time, vacuum should be
applied to the overflow nipple.
For 2-stage pressure caps,
carefully turn the cap ¼ to ½
turn to relieve the pressure.
Only loosen to the first stage.
DO NOT turn far enough to
remove the cap. The vacuum
that is being applied to the
nipple will relieve the pressure
safely into the machine.
When the system has been
depressurized, you should be
able to easily pinch the radiator
hose closed between your
thumb and finger.
Look up the type and quantity of
coolant for the vehicle in a
coolant specification guide,
electronic data base or other
source.
Fill the machine’s new fluid
tank with the appropriate
solution of antifreeze
(coolant)/water.
Always use the machine’s
measuring scale for quantity.
The tank holds extra coolant for
top off reasons, so you may
need to replenish.
EVAC OLD COOLANT
Attach the machine’s RED
service hose to the waste fluid
nipple on the back of the
machine and open ball valve.
Attach the open-ended adapter
to the machine’s BLACK
vacuum hose and open ball
valve.

12
Use the BLACK vacuum hose
to suction out the overflow
reservoir and reduce the
radiator level to reduce spillage
when you disconnect the
radiator hose. To do this, Turn
the MODE SELECTION dial to
EVAC, set the switch to the ON
position, and suction where
needed.
NOTE: The service hose must
be connected, or the suction
tool won’t work. When
suctioning the overflow
reservoir, do not try to pull out
solids that may have
accumulated in the bottom. To
clean these solids may require
reservoir removal and off-car
cleaning.
PERFORM COOLING SYSTEM EXCHANGE
IMPORTANT: For the
following steps, always use
worm gear style clamps to
secure the adapters. Never
use pinch type clamps for
this process!
Attach the adapters to the open
end of the hose and either the
radiator neck or vehicle goose
neck, whichever is available.
Attach the RED service hose to
the adapter toward the
thermostat and open ball valve.
Attach the BLACK vacuum
hose to the other adapter
toward the radiator and open
ball valve.
Pour the entire contents of a
Wynn’s “Cooling System
Cleaner” into the radiator. Top
off the cooling system with
water and secure the radiator
cap.
With pinch pliers, block the
overflow and remote reservoir
hoses.

13
Turn the MODE SELECTION
dial to LOOP.
Set the heat to high and the
blower to the lowest setting.
Start the engine and set idle at
1200 to 1500 rpm (use “Throttle
Depressor Tool” or other
means) and allow the engine to
reach operating temperature.
You will know when this occurs
by observing coolant through
the hoses. Allow the engine to
run an additional 10 minutes to
allow the cleaner to do its job.
NOTE: After the cleaner has
time to neutralize acids and
remove rust and scale,
remove the “Throttle
Depressor Tool” or return to
idle speed as applicable and
turn the engine off.
Turn the MODE SELECTION
dial to SERVICEand set the
switch to the ON position.
During the service, the
thermostat will be held open by
pressure from the machines
pump, which will allow new
coolant to be pushed into the
cooling system while used
coolant is pushed to the
machine’s waste tank.
When the service is complete,
the pump will stop, the red light
on the switch will illuminate, and
an audible tone will sound.
NOTE: It is normal for some
fluid to be left over in the
machine’s new fluid tank.
Set the switch to the OFF
position.
Close the ball valves on the
RED and BLACK service
hoses.
Carefully disconnect the
machine’s adapters from the
vehicle and reconnect the
vehicle’s hoses.

14
Return Vehicle to Normal
Operation
RETURN VEHICLE TO NORMAL OPERATION
Carefully proceed with disconnecting the
machine and adapters, reconnect the
radiator hose.
Add any additional products at this time.
Top off radiator and fill the overflow
reservoir to the appropriate level.
Perform system air bleeding as necessary.
Allow vehicle to run; check for leaks and
check for overheating.
DRAIN THE USED FLUID TANK
Remove the tank from the
machine by grasping the handle
on top of the tank.
Remove the drain hose from
the tank.
Remove the cap and pour the
contents into an approved
disposal container.
Replace the cap and drain
hose, and place the tank back
into the machine.
MAINTENANCE
To keep your machine working properly…
• Keep debris out of new fluid tanks.
• Ensure filter screen is clean before each use.
• Avoid spilling fluid on the control panel.

15
REPLACEMENT PARTS

16
ITEM NO.
PART NO.
DESCRIPTION
QTY.
1
R941251
LS-7 POLY LEVEL SWITCH
1
2
941346
RED SERVICE HOSE
1
3
941396W
BATTERY CABLE ASSEMBLY
1
4
941463
T - STRAINER 50X50 MESH 1/2 NPT
1
5
941467
BLACK SERVICE HOSE
1
6
941602
CONSOLE - BLACK
1
7
941603
CHASSIS - BLACK
1
8
941604
TOP - BLACK
1
9
942137W
WHEEL ONLY 4" CASTERS
4
10
40200547
STACKED BRASS BALL VALVE
1
11
40200557
COOLANT PUMP
1
12
40200617
USED FLUID TANK 6 GAL
1
13
40200618
NEW FLUID TANK 6 GAL
1
14
40200729
CONTROL BOX ONLY - W/COOLANT EXCH MACHINE
1
15
40200730
SWITCH ONLY - W/COOLANT EXCH MACHINE
1
16
40300289
BOTTOM SUPPORT PANEL
1
17
40300303
PANEL- OVERLAY ASSEMBLY
1
18
40300310
SERVICE PANEL- OVERLAY ASSEMBLY
1
19
R942118
CASTER 4" W/BRAKE
2
20
R942137
CASTER 4" SWIVEL
2

17
Wynn’s Equipment Limited Warranty Terms and Conditions
(1 Year on Equipment / 2 Years on Parts)
Seller warrants to its distributors that under normal use, care and service, the Equipment (except
as otherwise provided herein) shall be free from defects in material and workmanship for One (1)
year from the date of original invoice (unless a machine was put into inventory and later sold
(such sale from inventor to occur no later than [six (6) months] after the date of original invoice),
and a distributor can provide proof of sale and registered warranty card, then the one-year
warranty will begin on the registration date) for all Equipment with an additional 12 months of
coverage for parts only. External hoses, remote control modules, adapters and all other
attachments, supplies and consumables (except as otherwise provided herein) are warranted for
90 calendar days from the date of original invoice. Filter elements are not warranted. Printed
circuit boards purchased from Seller will be warrantable for a period of one (1) years from original
purchase date, and any repair services for machines under warranty or to a purchased circuit
board by an ITW employee or authorized representative shall be reimbursed.
SELLER'S OBLIGATIONS UNDER THIS WARRANTY ARE LIMITED SOLELY TO THE
REPAIR OR, AT SELLER'S OPTION, REPLACEMENT OF EQUIPMENT OR PARTS, AND
LABOR COSTS ASSOCIATED WHICH TO SELLER'S SATISFACTION ARE DETERMINED TO
BE DEFECTIVE AND WHICH ARE NECESSARY, IN SELLER'S JUDGEMENT, TO RETURN
THE 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.
This warranty does not cover (and separate charges for parts, labor and related expenses shall
apply to) any damage to, malfunctioning, inoperability or improper operation of the Equipment
caused by, resulting from or attributable to (A) abuse, misuse or tampering; (B) alteration,
modification or adjustment of the Equipment by anyone other than Seller's authorized
representatives; (D) improper or negligent use, application, operation, care, cleaning, storage or
handling; (E) fire, water, wind, lightning or other natural causes; (F) adverse environmental
conditions, including, without limitation, excessive heat, moisture, corrosive elements, or 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 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.
Repairs or replacements qualifying under this Warranty will be performed on regular business
days during Seller's normal working hours within a similar timeframe and process as BUYER
already has in place, to be accomplished by Wynn’s/QMI distributors with the support and
cooperation of the SELLER, or by SELLER or SELLER’s subcontractors if that is acceptable to
the BUYER following Purchaser's request or if agreed to between Seller and Buyer by
Purchaser’s/ ITW staff if necessary. All requests for Warranty service must be made during the
stated Warranty period. This warranty is non-transferable.