Figure 3-57. Marker lights, dome lights, flood lights, and trouble lights, removal and replacement.
3-50. Propeller Shaft
a. General. The upper heater is of the hot
a. Service. Lubricate the propeller shaft with
water-air blower type. Hot water from the upper
the lubricant and at the intervals shown in the
engine radiator is piped to the heater through the
through metal coils. This hot water serves as the
means of heating cold air drawn by an electric
motor driven fan. The heated air then passes
3-51. Cab Assembly
through the heater flexible hose to the sheet
metal heater duct located on the right side of the
operator's cab wall.
an exploded view of the cab assembly.
b. Removal. Remove the heater as follows:
The only reason for
removing glass is when the glass is broken. Break
(1) Open the petcock on the side of the
out the remaining glass, being very careful to avoid
heater and drain the coolant below the level of the
personal injury. Place masking tape on the piece of
heater. Open coolant drains to assist in draining
glass to be broken out to prevent flying glass.
Remove the weatherstripping around the glass.
(2) Remove flexible hose clamp.
(3) Disconnect input hose and output
(a) Start the rubber weatherstripping
hose by removing hose damps.
(4) Remove the heater cover by
window and force the ends into place, touching
removing the capscrews (4) which secure it to the
(b) Install the glass in one of the
Refer to the heater trouble
lower corners of the new weatherstrip.
Moisten the weatherstrip with
Insert a suitable locking tool
3-54. Hydraulic System
similar to the one illustrated in figure 3-63 and pull it
a. General. The hydraulic system for this
around the complete weatherstrip to lock the glass
machine consists basically of a number of
in place. Do not begin the locking opera- tion at the
individual systems, each of which is designed to
butt joint of the weatherstrip. Be sure to avoid
provide the hydraulic power required to perform
one specific function. Fluid supply for the entire
system is supplied from one reservoir and one
3-52. Operator's Seat
The operator's seat is readily removable. Refer to
manifold, fluid is supplied to an individual master
cylinder for each clutch or brake operated by the
various control levers and pedals. Refer to
controls. When the operator moves a control
lever or pedal, mechan-