COATS Kit 8184553 User Manual
1601 J. P. Hennessy Drive, LaVergne, TN USA 37086 615/641-7533 800/688-6359 www.ammcoats.com Manual Part No.: 8184554 01
HENNESSY INDUSTRIES INC. Manufacturer of AMMCO
®
, COATS®and BADA®Automotive Service Equipment and Tools. Revision Date: 01/05
Nitrogen Inflation System
Kit 8184553
For use with COATS Model Series Tire
Changers for Adding Nitrogen to the
Tire Changer as the Inflation Gas
®
Installation Instructions
with Parts Identification
READ these instructions before placing unit in
service KEEP these and other materials delivered
with the unit in a binder near the machine for
ease of reference by supervisors and operators.
Disclaimer
This is a supplemental instruction for handling nitrogen inflation systems and does not cover the safe operation of the machine, tire/rim
match, or evaluation of safe wheels and tires, or instructions covering
the safe inflation processes. If you need copies of operating instructions
call 1-800-688-6359 or refer to the internet at www.ammcoats.com.
: Do not exceed the design pressure of the equipment
when attaching a separate nitrogen gas inflation supply to the tire
changer. If the nitrogen gas pressure exceeds the design pressure of the
machine, the pressure relief valve will activate continuous; if the pressure
relief is increased, the machine is operating above the design pressure
and could create a hazardous condition.
For reference:
COATS tire changer models 90XX have a system designed for 145 PSI max-
imum input pressure.
COATS tire changer models 30XX, 40XX, 50XX, 60XX, and 70XX have a sys-
tem designed for 175 PSI maximum input pressure.
To comply with this requirement, a small (1/4-inch) adjustable pressure regulator may be required in series with the nitrogen input system; one is available from COATS as p/n 8183424, or Grainger p/n 4ZM14 (0-150 PSI
adjustable). Use the gauge on the tank to set the pressure.
CAUTION
Parts Identification for the Nitrogen
Conversion Kit 8184553
Item Part No. Qty. Description
1 8120408 1 1/4-inch Bolt
2 8182090 1 1/4-inch ID Rubber Hose by 60-
inch long
3 8101428 3 Hose Clamp
4 8120344 1 1/4-inch NPT Plug
5 8000378 2 1/4-inch Barbed Fitting
Other Parts Required Per Location: The installer is
responsible for furnishing the correct matching quick
connector to the nitrogen source. This will normally be
the male end with either male or female 1/4-inch NPT.
Converting Standard COATS®50xx, 60xx,
or, 70xx Tire Changer To Nitrogen Tire
Inflation
Before beginning this modification or attempting any
maintenance, remove the electrical power and air
source from the machine; also, bleed off any stored
compressed air by exhausting through the air blast foot
valve.
Tools Required: Speed Handle with 3/8-inch Socket,
Spinner Handle 1/4-inch
1. With the speed handle and 3/8-inch socket,
remove the machine’s side panel.
2. Using the 1/4-inch spinner handle, loosen the hose
clamp and remove the rubber hose that is attached to
the upstream side of the 1/4-inch valve. This is the hose
between the 1/4 and 3/4-inch valve.
2
3. With the hose that was just removed, from the kit
insert a 1/4-inch bolt into the hose end and using the
1/4-inch spinner handle, tighten the hose clamp. This
will prevent air pressure from escaping at the 3/4-inch
valve.
4. Next, using the length of hose from the kit, route
the hose through one of the holes in the back of the
chassis. Position the hose over the fitting on the 1/4inch valve and tighten the hose clamp from kit. At opposite end of the hose, install quick coupling fitting as
required for connection to nitrogen.
5. This is a diagram of the changes with the valve system removed from the chassis for clarity.
6. Replace the side pane.
7. Reconnect the air pressure supply to the machine
and the nitrogen supply to the machine and inspect for
leaks. If no leaks exist, test the machine for full function
before returning the machine to operation.
3
Plug In Hose
New Hose
for Nitrogen
Loading...