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Fuel Inject Install

This document provides installation instructions for a fuel injection control linkage. It lists the required tools and parts and provides a step-by-step process to install the linkage that includes: tightening brackets and setscrews in a specific sequence, engaging the injector rack bar, compressing springs using a tool, installing clevis pins using tools, setting injector synchronization, and installing the tube assembly and clip.

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65 views4 pages

Fuel Inject Install

This document provides installation instructions for a fuel injection control linkage. It lists the required tools and parts and provides a step-by-step process to install the linkage that includes: tightening brackets and setscrews in a specific sequence, engaging the injector rack bar, compressing springs using a tool, installing clevis pins using tools, setting injector synchronization, and installing the tube assembly and clip.

Uploaded by

caterpillar971
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
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i01928573

Fuel Injection Control Linkage - Install


SMCS - 1298-012

Installation Procedure
Table 1
Required Tools
Tool Part Number Part Description Qty
A 136-4149 Governor Pliers (1) 1

128-8827 Pin (1) 1


B
1U-7523 Pin Pilot (1) 1

C 1U-6675 Spring Compressor (1) 6

D 128-8822 Fuel System and Governor Tool Gp 1


( 1 ) This tool is part of the 128-8822 Governor Tool Group .

Illustration 1 g00661331
Note: For information on the inspection procedure for control lever (3), refer to Special Instruction,
REHS0601, "Inspection and Modification of the 102-7459 Fuel Injection Control Linkage and the 4P-9048
Fuel Injection Control Linkage".
1. Loosen setscrews (4) on each bracket.

2. Install fuel control linkage (2) and install bolts (1). Use the following sequence in order to tighten the bolts.

3. Tighten bracket (A) and (D) to a torque of 12 ± 3 N·m (106 ± 27 lb in).

4. Tighten brackets (B) and (C) to a torque of 12 ± 3 N·m (106 ± 27 lb in).

5. Position brackets (B) and (C) in order to allow free rotation of the fuel control rod.

6. Use a 2.5 mm (0.10 inch) wrench to tighten setscrews (4). Tighten the setscrews to a torque of 3.5 ± 0.2
N·m (31 ± 2 lb in). Do not overtighten the setscrews. Ensure that the control rod rotates freely.

7. The control rod should rotate freely when a force of 4.4 N (1 lb) or less is applied to control lever (3) .

Illustration 2 g00750163

8. Rotate the unit injectors in order to engage the injector rack bar (5) with the fuel injection control linkage
(2) .

Note: If the unit injectors are not installed, refer to the Disassembly and Assembly, "Unit Injector - Install".

9. Install Tooling (C) on the unit injectors and compress the springs.

Note: For the procedure to install Tooling (C), refer to Tool Operating Manual, NEHS0610, "Using the
128-8822 Tool Group on 3114, 3116, and 3126 Engines with Mechanical Unit Injectors (MUI)".
Illustration 3 g00672755

10. Install clevis pin (6) in Tooling (B). Clevis pin (6) attaches the control lever (3) to the governor.

Illustration 4 g00672752

11. Use Tooling (B) to install clevis pin (6) and the clip.

12. Use Tooling (D) to set the unit injector synchronization.

Note: For the procedure to use Tooling (D), refer to Tool Operating Manual, NEHS0610, "Using the 128-
8822 Tool Group on 3114, 3116, and 3126 Engines with Mechanical Unit Injectors (MUI)".

13. Remove Tooling (C) from the unit injectors.


Illustration 5 g00655975

14. Use Tooling (A) to slide tube assembly (5) into the governor.

Illustration 6 g00613071

15. Install clip (4) .

End By: Install the rocker arm assemblies and the pushrods. Refer to Disassembly and Assembly, "Rocker Shaft
and Pushrod - Install".

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