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 100 of 779

Remove

fan housing mounts lower into the cooling fa n

1. Remove two bolts (A) and lock washers.

2. Remove two cap screws (B) and lock washers and

shroud and takes the narrow lip cooling fa n

remove cooling fan vane from front fan housing.

vane. Be sure the wide lip

is not

installed on the

3. Remove two bolts (C) and lock washers.

front fan housing as this will interfere with the

4. Remove two cap screws (D) and lock washers and

fan and cause damage to both fan and van e

remove cooling fan vane from rear fan housing.

housing .

Install

Note.

When installing the cooling fan vanes, it

1. Position cooling fan vane in rear fan housing and

install two cap screws (D) and lock washers.

is important that the proper cooling fan vane i s

2. Install two bolts (C) and lock washers.

installed on the correct fan housing. The rear fan

3. Position cooling fan vane in front fan housing and

housing (flywheel end) mounts noticeably highe r

install two cap screws (B) and lock washers.

than the front fan housing and takes the wide lip

4. Install two bolts (A) and lock washers.

cooling fan vane (item 3, fig. B-25). The fron t

Figure 4-34. Removing or installing cooling fan vanes .

Remove

1. Remove cotter pin, slotted nut (A), and flat washer.

Discard cotter pin.

2. Remove front cooling fan and hub assembly (B) from

vertical drive shaft.

3. Remove rear cooling fan and hub assembly (C) in the

same manner.

Install

1. Position front cooling fan and hub assembly (B) on

vertical drive shaft.

2. Install flat washer, slotted nut (A), and new cotter pin

securing fan and hub assembly.

3. Install rear cooling fan and hub assembly (C) in the

same manner.

Figure 4-35. Removing or installin g

cooling fans .

4-18