Track & Track Shoes - Allis-Chalmers H 4 Operator Instructions Manual

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SEMI<;ROUSER SHOE
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S::t'
STREff PLATE ;
~--------------------------FIG.
34 {Track
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cause the tractor to turn to the left.
When the
right steering clutch is disengaged
t
the tractor
will turn to the right in a similar manner.
If a short turn is to be
made~
pull the steering
lever back on the side toward which the turn is to
be made and press down on the corresponding
brake pedal; this will stop the track completely.
Always pull the steering lever all the way back
when turning.
When the tractor has turned as
desired~
return the lever immediately to its
forward position. Do not let the levers fly for-
ward from the disengaged position, keep hold of
levers and return then1 manually to their for-
ward position. Disengage and engage the steer-
ing clutches smoothly and comp letely to avoid
excessive wear on the clutch friction discs.
When steering the tractor down steep grades
with the load pushing the tractor! the use
of
the
steering levers is opposite to that when pulling a
load. In this case, the
L.H~
steer"ing lever is
used to make a right turn and the
R.H.
steering
lever to make a left turn.
Disengaging either
steering clutch will aHo\\' the track on that side
to travel faster, since the braking power of the
engine is released from it, while the steering
clutch relnaining engaged will act as a brake for
the opposite track.
During operation, observe the amount of free
travel of the steering levers (the distance the
levers rn.ove before pressing is felt and dis-
engagern.ent of clutch begins)
w
This free travel,
which assl.llT)!'!S complete engagement of the steer-
ing clutches, should be from 1-1/2" to 3-1/2".
When the free travel of either steering lever be-
comes less than
1-1/211,
the steerillg clutch
linkage requires adjustment (Refer to IISteermg
Clutch Adjustment").
TRACK AND TRACK SHOES
Track type tractor
5
operate in al1 kinds of soil
29
conditions, such as mud, sandt gravel
l
snow and
ice.
Therefore, a variety of track shoe equip-
ment is necessary and available. 'Wnen changing
Or installing track shoes the bolts must be tight-
ened 100 to 110
ft.
lbs. torque.
The standard grouser shoes are rnost corrunonly
used for average conditions and can be equipped
with street plates where tractor is to be operated
On
paved rO'lt1s
Or
streets.
Cut -out grousers
are available where track packing is
encountered~
When operating On ice Or snow, cut-out ice and
snow grousers are available. Street plates may
be used on the ice and snow, or any of the full
grouser shoes. Scrn.i-grollser shoes are avail-
able and can be used on pavement, or in soil
conditions where it is not desired to dig up the
soil surface, or in operations where a slight
track slippage is
desired~
When operating in muddy conditions and freezing
temperatures, it is recorrn:nended that the mud be
cleaned from the track assemblies, at the end of
the days work and that tractor be parked on dry
solid ground to prevent track freezing down. If
impossible to park tractor on solid ground" it
should be driven upon planks
*
If track assemblies are allowed to freeze down
in muddy conditions without any precautions, a
severe strain will be put On gear train and hous-
ings when attempting to move or operate tractor,
and severe damage could result.
Track wear gauges are available to determine
amount of wear on components to determine when
to rebuild. Excessively worn tracks can damage
sprockets, truck wheels and support rollers.
The distance between the center of pins On a
new track is
*
Turn, or replace, pin and
bushings when this measurement reaches
6-1/8"
to protect components.

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