Radiator, Shroud, and Fan Shroud

Figure 3-85. Exhaust pipe, hood, cap, and elbow, removal and installation (engine model D333TA).

Figure 3-87. Fan guard and shroud (engine model 687C-18-ES), removal and installation.

TM-5-3810-201-12 Crane-Shovel Basic Unit Crawler Mounted 40 Ton 2 Cu Yd Diesel Driven Manual
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returned to radiator through upper connections, or

(f) Remove eight screws (fig.

3-86)

through the bypass line for recirculation through system.

securing shroud to radiator, then remove shroud.

When engine is operating, air is drawn through radiator

(g) Install in reverse order.

core by the fan to cool and maintain correct operating

(2) Radiator.

temperature of the engine. The six-blade fan is driven

Note.

Provide lifting device that will

by a single belt.

reach through cab side door and couple close to

b. Crane-Shovel Unit Model 855BG2. All of the

radiator.

crane-shovel units of this model, except the fourteen

(a) Remove fan guard and shroud ((1)

described in c below, are equipped exactly the same as

above).

in a above.

(b) Refer to figure 3-86, remove two

c. Winterized Crane-Shovel Units Model 855BG2.

capscrews and lockwashers, lift radiator off of pad and

The fourteen winterized crane-shovel units model

out of side door.

855BG2 have the following additional components in the

(c) Remove pad and support from

cooling system: coolant heater, coolant lines through oil

mounting bracket.

pan, and a coolant circulating pump. The coolant heater

(d) Install in reverse order.

heats the coolant and oil in engine as an aid to cold

b. Removal and Installation (Engine Model

weather starting.

D333TA).

3-101. Radiator, Shroud, and Fan Shroud

(1) Fall guard and shroud.

a. Removal and Installation (Engine Model 687C-

(a) Refer to figure 3-88 and remove fan

18-ES).

guard.

(1) Fan guard and shroud.

(b) Shroud is welded to this radiator and

(a) Drain cooling system (para 3-20).

is not ordinarily removable at organizational

(b) Remove radiator outlet (bottom) hose

maintenance.

(fig. 3-86) by loosening hose clamps at radiator and

(2) Radiator.

suction side of water pump.

Note.

Provide lifting device that will

(c) Remove radiator inlet (top) hose (fig.

reach through cab side door and couple close to

3-87) in a similar manner.

radiator.

(d) Remove two capscrews, lockwashers,

(a) Drain cooling system (para 3-20).

and flatwashers, then remove pipe flange from

(b) Remove fan guard ((1) above)

thermostat housing (fig. 3-81).

(c) Refer to figure 3-89 and remove

(e) Remove 12 screws (fig. 3-87) that

radiator.

secures fan guard to shroud, then remove fan guard.

(d) Install in reverse order.

3-102. Fan

a. Fan and Sitpport Bracket (Engine Model 687C-

18-ES).

(1) Removal and installation.

(a) Remove fan belt (para 3-103).

(b) Refer to figure 3-90 and remove fan

and support bracket.

(c) Install in reverse order.

(2) Cleaning, inspection and repair.

(a) Clean al' parts in an approved

cleaning solvent and dry thoroughly.

(b) Visually inspect all parts for cracks,

breaks, damaged threads, or other defect.

(c) Repair by replacing defective parts or

mounting hardware.

b. Fan (Engine Model D333TA).

(1) Removal and installation.

(a) Refer to figure 3-91 and remove fan.

(b) Install in reverse order.

Figure 3-86. Radiator removal points.

(2) Cleaning, inspection and repair.

(a) Clean all parts in an approved

cleaning solvent and dry thoroughly.

(b) Visually inspect fan blades for bends,

cracks, or other damage. Inspect mounting hardware

for burs or stripped threads.

3-99

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