This article mainly introduces Nozzle Heater Harness-Remove and Install
Removal Procedure
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1. Cut cable straps(2) from harness assembly(1).
Note: Note position of cable straps.
2. Slide the locking tab for connection (3) into the unlocked position.
3. Disconnect harness assembly(1) from connection
(3).
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4. Make temporary marks on heated nozzle connection(6) and the combustion head for the Aftertreatment Regeneration Device (ARD) for installation purposes.
5. Remove Allen head screw(5) and clamp(4).
6. Remove heated nozzde connection(6) and harness assembly(1) from the combustion head for the ARD.
Typical example
7. Remove O-ring seals(8) and O-ring seal(7) from heated nozzle(6).
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Installation Procedure
Typical example
A WARNING Use caution when you are using isopropyl alco-
hol. Avoid prolonged skin contact with isopropyl alcohol.
Vapors may be harmful if inhaled. Use only in a well ventilated area. Do not smoke while using isopropyl alcohol.
IsopropyI alcohol is flammable. Do not use near an open flame or near welding operations. Keep isopropyl alcohol away from heated surfaces ex-
ceeding 482C(900F)
Note: This connection is an electrical connection and cannot be lubricated with a petroleum-based lubricant. Isopropyl alcohol is the only approved lubrication for this connection.
1. Ensure that all components are clean and free from wear and damage. If necessary, replace any components that are worn or damaged.
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2. Lubricate new O-ring seals(8) and O-ring seal(7)
with Tooling(A). Install the O-ring seals and the O-
ring seal to heated nozzle connection(6).
3. Position harness assembly (1) and install heated nozzle connection(6) to the combustion head for the ARD.
Note: Ensure correct orientation of the heated nozzle connection.
4. Install clamp(4) and Allen head screw(5).
5. Use Tooling(B) to tighten the Allen head screw to a torque of 1.7 N-m(15lb in).
Typical example
6. Connect harness assembly(1) to connection(3).
7. Slide the locking tab for connection (3) into the locked position.
8. Install new cable straps (2) to harness assembly
(1).
Note: Ensure that cable straps meet the Original Equipment Manufacturer (OEM) specification.
