This article introduces the Perkins 2806F engine relay (ARD nozzle heater) removal instructions

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1. Turn the battery disconnect switch to the OFF position.












2. Cut cablestraps (3) from harness assembly (4)

Note: Note position of cable straps. Ensure that all

cablestraps are removed for the harness

assemblies.

3. Slide the locking tab for the harness assembly (4) into the unlocked position.

4. Disconnect harness assembly (4) from harness assembly connection (5) for the clean emission module.

5. Remove bolts ( 1) and spacers.

Note: Note position and orientation of any brackets that are attached to the relay assembly.

6. Remove relay assembly (2) from the bracket for the clean emission module.

7. If necessary, follow Step 7.a through Step 7.b to remove relay assembly (2) from bracket (6).

a. Remove bolts (7) from relay assembly (2) and remove bracket (6).

Note: Note the orientation of the bracket for

installation purposes.

b. Remove relay (2) from bracket (6).

Installation Procedure

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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Typical example

2. If necessary, follow Step 2.a through Step 2.b to install relay assembly (2) to bracket (6).

a. Position relay assembly (2) onto bracket (6).

Note: Ensure the correct orientation of the relay assembly on the bracket.

b. Install bolts (7) to relay assembly (2) and tighten the bolts to a torque of 9 N·m (80 lb in).

3. Position brackets onto relay assembly (2) and install bolts (1) and spacers.

Note: Ensure correct position and orientation of the brackets.

4. Position relay assembly (2) onto the bracket for the clean emission module.

Note: Ensure that the relay assembly is correctly oriented on the clean emission module bracket.

5. Tighten the bolts to a torque of 12 N·m ( 142 lb in).

6. Connect harness assembly (4) to harness

assembly connection (5) for the clean emission module.

7. Install cablestraps (3) to harness assembly (4).

Note: Ensure that cablestraps meet the Original Equipment Manufacturer (OEM) specification.

8. Turn the battery disconnect switch to the ON

position.
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