OTC SPX 7448 User manual

Litho in USA
Sheet No.
Issue Date: Rev. 2-15-95
Parts List &
Operating Instructions
for: 7448
Form No. 105298
1 of 2
Fuel Injector CleanerFuel Injector Cleaner
Fuel Injector CleanerFuel Injector Cleaner
Fuel Injector Cleaner
1208389 1 Valve
219463 1 Tee Fitting
3207895 1 Straight Fitting
4212190 1 90°Elbow Fitting
5309124 1 Pressure Gauge (0-100 PSI)
647955 1 Cylinder Body
7213299 1 Air Regulator
815373 1 90°Elbow Fitting
916494 1 Straight Fitting (1/4 NPTF)
10 309796 2 Cylinder Cap
11 213209 2 O-ring
(2-11/16 x 2-1/2 x 3/32, -144)
12 10473 6-7/8" Sash Chain
13 213876 1 Split Ring
14 15665 1 “S” Hook
15 206878 1 Coupler Socket
16 306905 1 Hose (1/8 NPTF x 6' Lg.)
17 17022 1 Straight Fitting
18 216297 1 Check Valve
Parts Included but Not Shown
105641 1 Instruction Manual
Refer to any operating instructions included with the product for detailed information about
operation, testing, disassembly, reassembly, and preventive maintenance.
Items found in this parts list have been carefully tested and selected by OTC. Therefore: Use
only OTC replacement parts!
Additional questions can be directed to the OTC Div. Technical Services Department.
Item
No.
Part
No.
No.
Req'd Description
No.
Req'd Description
Part
No.
Item
No.
SPX Corporation
655 Eisenhower Drive
Owatonna, MN 55060-0995 USA
Phone: [phone]
Tech. Serv.: [phone]
Fax: [phone]
Order Entry: [phone]
Fax: [phone]
International Sales: [phone]
Fax: [phone]

Parts List & Operating Instructions Form No. 105298, Sheet 1 of 2, Back
Operating Instructions
1. Read, understand, and follow “Safety Precautions” before using Fuel Injector Cleaner.
2. Run engine until it reaches normal operating temperature.
3. Shut engine OFF. Turn all accessories OFF.
4. Disable fuel pump. Note: It is best to unplug fuel pump at fuel tank. On some vehicles, pulling fuel
pump fuse also disables ignition system or fuel injectors.
5. Turn OFF shut-off valve at bottom of Fuel Injector Cleaner container. See Figure 1. Note: Valve is OFF if
it’s turned all the way clockwise.
6. Remove top and regulator assembly from top of Fuel Injector Cleaner container. Pour fuel injection cleaner
(OTC #7000 - Pro Inject-R-Kleen®) into container. Install top and regulator assembly again.
7. Hang Fuel Injector Cleaner container from hood of vehicle.
8. Refer to Fuel Injection System Specifications manual (#105641), which is included in the #7448 kit. The
manual contains diagrams and instructions specific to each vehicle system. Important: Block fuel return
line to keep cleaner fluid from going back to tank.
9. Refer to vehicle service manual to find fuel pressure operating specifications.
Safety Precautions
WARNING: The following safety precautions must be carefully observed to help reduce the risk
of fire and personal injury.
•Read and follow the operating instructions and safety precautions before using the Fuel Injector
Cleaner.
•Wear eye protection that meets the requirements of ANSI Z87.1 and OSHA.
•Tighten all connections before cleaning the injectors; fuel leakage could cause a fire.
•Release fuel system pressure before servicing the fuel system components.
•To avoid spilling fuel on the engine, wrap a shop towel around the pressure tap fittings when
connecting or disconnecting adapters. Pressurized fuel can create a fire hazard. Dispose of the
shop towel correctly.
•Keep dirt out of the system.
•Use the vehicle manufacturer’s recommended procedures to service the injectors. Never exceed
recommended pressures when cleaning fuel injectors.
•Replace injector o-rings whenever the injectors are removed.
•Use the Fuel Injector Cleaner on gasoline engines only.
•Protect painted surfaces from fuel or cleaner fluid spills.
•Keep tools, electrical cords, and hoses away from moving engine parts.
•Vent exhaust to the outside while running the vehicle.
•Wrap a shop towel around the fitting when removing the cleaner assembly hose. Residual line
pressure may spray a small amount of cleaner fluid.
•Observe normal precautions for working with flammable liquids. No: smoking, open flames,
electrical sparks, etc.
•Always have a Class B fire extinguisher available while working on fuel injection systems.
•Do not modify any components of the Fuel Injector Cleaner. Do not replace any components of the
Fuel Injector Cleaner except those specified by the manufacturer.

Litho in USA
Sheet No.
Issue Date: Rev. 2-15-95
Parts List & Operating Instructions
2 of 2
Form No. 105298
Figure 1
10. Turn regulator on top of Fuel Injector Cleaner container to full OPEN position (counterclockwise).
11. Attach a shop air hose to fitting on top of cleaner container.
12. Adjust regulator (by turning it clockwise) to vehicle manufacturer’s fuel running specification.
13. Open valve on bottom of cleaner container to full OPEN position (counterclockwise).
14. Start engine and let it run at 1,000 – 1,500 RPM. Note: Adjust air pressure again to obtain a smooth
RPM, if necessary.
15. Run engine until container is empty and engine stalls.
16. Turn ignition OFF.
17. Turn valve on bottom of cleaner container to full OFF position (clockwise).
18. Disconnect air supply. Turn regulator to full OPEN position (counterclockwise) to release pressure in
container.
19. Remove cleaner container. Remove fuel adapter fitting. Connect fuel line again. Remove block on fuel
return line and connect fuel return line again, if applicable. Connect fuel pump power again.
20. Start engine and check for fuel leaks.