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 132 of 779

Section lV. REPLACEMENT OF COOLING FAN CLUTCH ASSEMBLY

AND FAN DRIVE HOUSING OUTER FLANGE BEARING

4-7. General

following the same procedure. For instructiona l

This section covers the removal and in -

purposes in this section, the rear fan clutc h

assembly has been used for typical procedure .

stallation of the cooling fan clutch assembly and

Refer to Table 4-3 for applicable illustration s

the replacement of the outer flange bearing. The

front and rear cooling fan clutch assemblies are

and instructions required for removing or in -

stalling cooling fan clutch and flange bearing .

interchangeable. Replace both clutch assemblie s

Table 4-3. Cooling Fan Clutch Assembly

Remove

1. Cut locking wire (A).

2. Remove 12 slotted nuts (B).

3. Install jack screws (5 / 16-24NF thread) (C) into

three threaded holes in the fan drive housing cover.

Alternately tighten jack screws until fan drive housing

and clutch assembly are separated from housing.

Remove jack screws.

Install

1. Install 12 slotted nuts (B) securing fan drive housing

and clutch assembly.

2. Install locking wire (A).

Figure 4-99. Removing or installing rear fa n

drive housing cover attaching parts .

Remove

1. Remove housing cover and clutch assembly (A).

2. Cut locking wire (B).

3. Remove six bolts (C) and flat washers attaching the

oil seal housing to the cover.

4. Install two mechanical pullers -5120-473-7222 in oil

seal housing puller screw holes (D). Turn pullers

alternately to remove housing.

Install

1. Position oil seal housing on cover and install six bolts

(C) and flat washers securing housing on cover.

2. Install locking wire (B).

3. Install housing cover and clutch assembly (A).

Figure 4-100. Removing or installing rear fa n

drive housing cover and clutch assembly .

4-5 0