SECTION
I-DESCRIPTION
AND SPECIFICATIONS
Topic Title Topic No.
General Description
...............
1
General Specifications
.............
2
Specifications of lubricants
..
. . . . . . . . 3
Specifications of
Fuel
..............
4
Fuel
Storage
.....................
5
Tractor
and
Engine Serial
Numbers.
. . 6
1.
GENERAL DESCRIPTION
The description given herein
and
the information
contained
in
this manual pertains to
~he
Model
"HD-98" Tractor (Standard Model), unless other-
wise stated.
The Model
"HD-9B" Tractor
is
on 1 8,800 pound
track-type tractor powered with
a 4-cylinder,
2-
cycle
"DIESEL"
Engine. Power from the engine
is
transmitted through a single plate, over-center type
engine clutch to the transmission through
a drive
shaft universal joint assembly.
From
the trans-
mission, the power
is
transmitted to the bevel
gear,
and
from the bevel
gear
through two multiple disc
steering clutches (one on
each
side
of
the bevel
gear
shaft) to the final drives
and
the track drive
sprockets.
The
transmission provides 6 forward speeds rang-
ing from 1.4 M.P.H.
in
low
gear
to
5.7
M.P.H.
6
in
high
gear
and
3 reverse speeds ranging from
1.6
M.P.H.
in
low
reverse to 4.4
M.P.H.
in
high
reverse, under
full
governed engine
speed
of
1600
R.P.M.
Mechanical "Booster-Type" steering clutch
Con-
trols, mechanical self energizing brakes, adjustable
and
wide operator's seat,
and
unobstructed view
of the front of both tracks assure
easy, positive
control of the
trador
at
all times.
The tractor
is
equipped with electric starting
and
lighting equipment, muffler,
full
width crankcase
guard,
front pull hook, bumper, hinged type
radi-
ator
grille, suction type fan,
and
16-inch integral
grouser shoes.
The
truck wheels, track idlers,
and
support rollers have positive type seals
and
are
protected by guards.
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