TM-9-2815-200-35

ENGINE, WITH CONTAINER:TURBOSUPERCHARGED, DIESEL ,FUEL INJECTION ,90-DEGREE “V” TYPE, AIR - COOLED ,12 - CYLINDER , ASSEMBLY ;MODELS AVDS-1790-2M (2815-856-4996), AVDS-1790-2A AND AVDS-1790-2AM (2815-856-9005)

TECHNICAL MANUAL; DIRECT SUPPORT, GENERAL SUPPORT AND DEPOT MAINTENANCE MANUAL INCLUDING REPAIR PARTS AND SPECIAL TOOLS LISTS

TM-9-2815-200-35 - Page 286 of 779

Remove

Note.

The main bearing caps are marked 1

through 7

(front to rear) to identify their

locations. Identifying numbers also appear on

bearing web in crankcase assembly. The caps are

not interchangeable with each other and must be

returned to their original positions during in-

stallation.

Note.

Do not use a scriber or other sharp

instrument for marking bearing halves. It is

recommended that a grease pencil be used for

mat-king bearing halves.

1. Cut locking wire and remove 24 slotted nuts (A) and

12 plate washers attaching main bearing caps, numbers

1, 2, 3, 5,6, and 7 to crankcase assembly.

2. Cut locking w ire and remove four slotted nuts (B) and

two plate washers attaching main thrust bearing cap

(No. 4 or center) to crankcase assembly.

Install

Note.

Do not install locking wire until bearing

cap nuts have been torque tightened (para 7-5c).

1. Apply antiseize compound (FSN 9150-663-1770) and

install two plate washers and four slotted nuts (B)

securing main thrust bearing cap (No. 4) to crankcase

assembly.

2. Apply antiseize compound (FSN 9150-663-1770) and

install 12 plate washers and 24 slotted nuts (A)

securing main bearing caps, numbers 1, 2, 3, 5, 6, and 7

to crankcase assembly.

Figure 5-173. Removing or installing main bearing attaching parts.

5-100