Relocating the Air Filter Assembly on C4.4 Engines{1051, 1054} Caterpillar

Engine:

C4.4 (S/N: N4D1-UP)

Introduction

The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

Problem

The whole air filter assembly must be removed on certain C4.4 engines just in order to remove the air filter. This issue is happening on C4.4 engines that are enclosed.

Solution

The air filter assembly must be moved so the air filter can be removed without removing the whole assembly. A new air hose is also available to deal with the relocation of the air filter assembly.

Illustration 1	g01438460
Area of concern

Show/hide table



Illustration 2	g01438450
(1) Clamps for the air filter hose. (2) 264-6397 Air Filter Hose

1. Loosen the two hose clamps (1) that secure the old 264-6397 Air Filter Hose (2). Remove the 264-6397 Air Filter Hose from the engine and the air filter assembly.

Show/hide table



Illustration 3	g01438461
Mounting screw for the air filter assembly

2. Loosen the mounting screw (3) .

Show/hide table



Illustration 4	g01438462
(4) Air filter assembly

3. Move the assembly (4) 50 mm (2.0 inches) in the direction shown in Illustration 4. Refer to Illustration 4 for the proper direction in order to move the air filter assembly.

Show/hide table



Illustration 5	g01438461

4. Tighten the mounting screw (3) .

Show/hide table



Illustration 6	g01438458
(5) 264-6397 Air Filter Hose (6) 315-5265 Hose

Show/hide table



Illustration 7	g01442146
315-5265 Hose

5. Install the new 315-5265 Hose (6) on the air filter assembly and the engine. Use the two hose clamps that were removed in Step 1 to secure the new 315-5265 Hose .