Relocating the Grease Fitting for the Boom Cylinder on Certain Excavators{5456} Caterpillar

Excavator:

325C (S/N: BKW254-255,264-265,271-272,290-290,294-294,303-304,306-306,309-309,313-314,317-317,319-321,323-323,328-330)

Introduction

This Technical Information Bulletin replaces the Technical Information Bulletin July, "Relocating the Grease Fitting for the Boom Cylinder on Certain Excavators". Disregard this document. Refer to the following information instead.

Problem

The operator cannot access the grease fitting for the boom cylinder from the ground on certain compact radius machines. The grease fitting on the boom cylinder for a machine with a standard configuration is oriented differently. The operator can access the grease fitting from the ground on a machine that has a standard configuration.

Solution

If the operator cannot access the grease fitting, relocate the fitting. Relocating the fitting will allow the operator to grease the boom cylinder from the ground. Use the information that follows in order to relocate the grease fitting.

Relocating the Grease Fitting for the Boom Cylinder

1. Procure the parts that are listed in Table 1.

   Note: The procedure that follows is for one of the boom cylinders. Repeat Step 2 through Step 6 for the other boom cylinder.

Illustration 1	g01294810
278-2847 Manifold (A) 14 mm (0.55 inch) Diameter (B) 8.7 mm Diameter, 10 mm Deep, 1/8-27 NPSF Thread (C) 12.5 mm (0.5 inch) (D) 11.5 mm Diameter, 14 mm Deep, 1/4-27 NPSF Thread (E) 24 mm (1.0 inch) (F) 105 mm (4.1 inch) (G) 90 mm (3.5 inch) (H) 50.8 mm (2.0 inch) (J) 15 mm (0.6 inch)

Illustration 2	g01294932
(K) 278-2847 Manifold (L) 7Y-4868 Clip (M) 8T-4910 Bolt (N) 8T-4244 Nut (P) 8T-4223 Hard Washer (Q) 2N-1931 Pipe Elbow (R) 3B-8489 Grease Fitting (S) 278-2848 Hose As (T) 5P-8998 Fitting (U) 8S-7169 Coupling (V) 6V-3342 Pipe Elbow (W) 6K-6967 Pipe Adapter

2. Remove 3B-8489 Grease Fitting from the cap end of the boom cylinder. Install 5P-8998 Fitting , 8S-7169 Coupling , 6V-3342 Pipe Elbow and 6K-6967 Pipe Adapter . Refer to Illustration 2.

3. Assemble a 278-2848 Hose As to the 6V-3342 Pipe Elbow and 6K-6967 Pipe Adapter .

4. Assemble a 3B-8489 Grease Fitting and a 2N-1931 Pipe Elbow to the 278-2847 Manifold .

5. Assemble two 7Y-4868 Clips and the 278-2847 Manifold to the boom cylinder lines. Use two 8T-4910 Bolts , two 8T-4223 Hard Washers , and two 8T-4244 Nuts .

6. Assemble a 278-2848 Flexible Hose Assembly to the 2N-1931 Pipe Elbow .