2000/03/13 Caterpillar

Off-Highway Truck/Tractor:

776D (PIN: AFS1-UP)

777D (PIN: AGC1-UP)

777D HAA (PIN: AGY1-UP)

Special Instruction, REHS0563, "Assembly Procedure for 776D Tractors and 777D Off-Highway Trucks", "Install the Exhaust for The Truck - For Trucks With a Body that is Not Heated, Install the 8W-9078 Exhaust Pipe and the 7C-4013 Muffler". The corrections to the publication are described in this article.

A change has been made in the installation of the muffler. A brace is no longer used on these models. Perform the following changes to the manual in the referenced section.

• Remove Illustration 162.

• Remove Step 13.

• Replace Table 31 with the following table.

Table 31

Required Parts for Installation of Exhaust Pipe and Muffler
Item	Quantity	Part Number	Description
1	2	4L-6454	Bolt [3/8 - 16 x 25.4 mm (1.0 inch)]
2	4	8T-2561	Washer
3	4	8T-4122	Washer
4	4	8T-9393	Bolt [5/8 - 11 x 38.1 mm (1.50 inch)]
5	2	8W-5558	Angle
6	1	111-4368	Tube
7	2	8T-2501	Bolt [3/8 - 16 x 50.8 mm (2.00 inch)]
8	2	7K-3215	Boss
9	2	8T-8917	Bolt [1/2 - 13 x 31.8 mm (1.25 inch)]
10	6	8T-4223	Hard Washer
11	4	6V-8188	Nut (1/2 - 13)
12	2	8W-4259	Strap
13	2	8W-4261	Strap
14	8	6V-8801	Nut (3/8 - 16)
15	8	8T-2501	Bolt [3/8 -16 x 50.8 mm (2.0 inch)]
16	1	8T-4835	Bolt [1/2 - 13 x 50.8 mm (2.0 inch)]
17	1	111-4352	Muffler Assembly
18	1	4N-9330	Clamp
19	1	110-2756	Bracket
20	4	5S-7379	Bolt [3/8 - 16 x 22.2 mm (.87 inch)]
21	20	8T-4896	Hard Washer
22	1	6N-9298	Clamp
23	1	129-9477	Exhaust Extension
24
25	1	5P-2228	Bolt [1/2 - 13 x 25.4 mm (1.00 inch)]
26	1	5P-2424	Bolt [1/2 -13 x 57.15 mm (2.25 inch)]