Figure 7-17. Installing rear fan and accessory drive housing using fan and advance unit housing sling-4910-795-7954.

(5) Refer to figure 5-130 and torque tighten

(3) Refer to figure 5-131 and install fan and

the 12 self-locking nuts (A) to 275 pound-inches.

advance unit housing sling - 4910-795-7954.

Refer to figure 5-129 and torque tighten 14 self-

(4) Refer to figure 7-17 and install rear fan

locking nuts to 275 pound-inches.

accessory drive housing with clutch

and

Fuel

Injection

Pump

Mounting

Base.

assembly.

(1) Install new preformed packing on oil

transfer tube in crankcase (fig. 5-128).

(2) Refer to figure 5-127 and torque tighten

four bolts to 750 pound-inches.

Front Fan Drive Housing

with

Clutch

Assembly and Mounting Base.

(1) Install new preformed packing at oil

transfer tube in crankcase assembly (fig. 5-126).

(2) Apply a thin coat of

gasket cement

(MIL-C-10523

Ord.)

the

mounting

base

lower mounting surface.

(3) Refer to figure 5-125 and torque tighten

ten

slotted nuts and two cap screws to 275

pound-inches.

(4) Position cover adapter (58, fig. B-26) on

front fan drive shaft cover (57). Similarly,

position adapter

(58)

rear

fan

drive

shaft

cover (62).

(5) Join the two shaft covers (58 and 621

using rubber hose (61) and two hose clamps

(60). Tighten hose clamps just enough to hold

the covers together as a unit. Install a preformed

packing (56) on adapter end of each shaft cover

(6) Install retaining ring (55) on front far

drive shaft (54).

Note. Do not install retaining ring in groove

located on the front spline. Ring must be located

1. Lower the rear fan and accessory drive housing assembly

(A) until holes in housing aline with studs in mounting

beyond the spline at this time.

base.

(7) Install front fan drive shaft with

2. Continue lowering housing until accessory drive bevel

retaining ring, in front fan drive bevel gearshaft

gearshaft gear teeth (B) engage with the gear teeth of

(50.1) of front fan drive housing and clutch

the accessory drive gear.

assembly. Long spline must enter gearshaft.

3. Refer to figure 5-131 and remove lifting sling (C) after

rear fan and accessory drive housing are positioned.

Install the assembled drive shaft covers

above) over the front fan drive shaft, with

Figure 7-17. Installing rear fan and a c c e s s o r y

housing toward front fan drive housing as shown

drive housing using fan and advance unit

in figure 7-18.

housing

sling-4910-795-7954.

7-13