Unit Injector - Remove

TM 9-2320-312-24-2

Truck Engine

Disassembly and Assembly Section

Installation Procedure

NOTICE

Keep all parts clean from contaminants.

Contaminants may cause rapid wear and shortened

component life.

NOTICE

Care must be taken to ensure that fluids are contained

during performance of inspection, maintenance, test-

ing, adjusting and repair of the product. Be prepared to

collect the fluid with suitable containers before open-

ing any compartment or disassembling any compo-

nent containing fluids.

g00618383

Illustration 15

Refer to Special Publication, NENG2500, "Caterpillar

Tools and Shop Products Guide" for tools and supplies

1. Ensure that the orifice in fuel pressure regulator

suitable to collect and contain fluids on Caterpillar

(1) is open and clean. Install a new O-ring seal

products.

(2) on fuel pressure regulator (1).

Dispose of all fluids according to local regulations and

mandates.

Table 3

Tools For Cleaning Carbon Deposits From

The Injector Sleeve Bores

Part Number

Part

QTY

Description

4C-5027

Tap Wrench

4C-6161

Tube Brush

4C-6774

Vacuum Gun Kit

8T-7765

Hand Pad

g00618385

Illustration 16

1U-5512

Cut & Polish Roll

2. Install fuel pressure regulator (1) in the rear of

9U-6102

Reamer

the cylinder head at a 10 degree angle from the

9U-6862

horizontal centerline.

Tapered Brush

Table 4

i01501703

Tools For Evacuating Fuel From The Cylinders

Unit Injector - Remove

Part Number

Part

Qty

Description

SMCS Code: 1290-011

4C-4057

Tube

Removal Procedure

1U-5718

Vacuum Pump

1U-5814

Bottle Assembly

Table 2

Required Tools

Part

Tool

Part Description

Qty

Number

1U-7587

Pry Bar

Start By:

a. Remove the valve mechanism cover. Refer to

Disassembly and Assembly, "Valve Mechanism

Cover - Remove and Install".