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SPECIAL EQUIPMENT
Fluid Level
When th~ Touch-Control sy~tem is filled to the
proper level with IH Touch-Control fluid, it should
not require servicing, unless for some. reason the
system has been disturbed.
The correct fluid level is to the bottom of the filler'···
opening. If it is necessary to add fluid, use IH
Touch-Control fluid.
It is essential that the fluid be
absolutely clean and free from water and all foreign
matter when placed in the system.
Cloudiness may
indicate the presence of mo~.
If the Touch-Control system should fail to
operate in a satisfactory manner or if there are any .
noticeable leaks in ,the system, check the fluid level
in the reservoir or see your International Harvester
dealer.
·
\
_ Never operate the tractor without having sufficient
fluid in the reservoir.
Insufficient fluid may cause
damage to the Touch-Control system.
,·
Before removing the filler plug (Illust. 67B) for
inspection, thoroughly clean the plug and surround-
ing area of all dirt and grit.
Draining and '~illing the Reservoir
When it is necessary to drain and refill the
reservoir for any reason, proceed as follows:
1.
Wipe off all dirt and grit from the reservoir
and filler plug.
2.
Remove the filler plug (Illust. 67B) and the
drain plug (I/lust. 69) and place them in a clean
container.
When the fluid has · stopped draining, run the
engine ver.y briefly to drain the fluid from the pump
and connecting pipes.
The refill caf:_'3.city of the Touch-Control system
when drained as instructed above is
3½
pints.
_Note:
If it is necess.ary to flush the system, use
IH Touch-Control fluid so that the necessary lubri-
cation ofthe pump and control system is maintained
without adulteration. Never use kerosene or any
other oil ..
3. After the, system has drained completely,
replace the drain plug · and fill the reservoir to the
filler opening with IH Touch-Control fluid.
4. Start the tractor engine and operate it at a
moderate idle speed. With the filler plug removed,
move the Touch-Control lever back and forth
10
to
12
times through its full range of travel. This
quickly frees the system of trapped air.
Then place
the contr.ol lever in the rearward position (toward
tractor seat) and stop the engine.
69
5. Add sufficient clean fluid to the reservoir to
bring the fluid level to the bottom of the filler open-
ing. Replace and tighten the filler plug. ·
The refill capacity for the Touch-Control system
when drained as instructed
in
paragraph
2
is
3½
pints.
The capacity of a completely dry unit (when a
new or rebuilt unit is installed) is
4¼
pints.
Lubrication
. Daily or after every
10
hours of operation, lubri-
cate the rockshaft arm and bearings through lubri- .
cator fittings.
See I/lust. 69. Use
O
pressure-gun
grea1e (chassis lubricant) and apply 2 or 3 strokes of
lubricator, or sufficient grease to flush out the old
grease and dirt.
Note:
Always keep the Touch-Control lever
in the rearward position {toward tractor seat) when
the tractor or the Touch-Control system is not
being actively used. This places the piston in. the
retracted position, preventing exposure, to any
moisture which may have condensed in' tJ\e leather
dust boot.
,
lllust. 69
' > ~, , : }
,·,·~~
-.:~~~::.._·_.·;
Lubrication j
· . ..,_· }cc
fittings
.
1
, )>f:\:::: ~
0
~i9a)l
Showing lubrication points.
Air in the System
Make certain that all connections and openings
are well sealed. The entire system must b.e kept
tightly sealed at all times, not only to prevent loss of
fluid but also to avoid entrance of air in the inlet
end of the system. Air entering the system interferes
with proper lubrication of moving parts. It causes
an increased amount of vibration and an unsteady
pressure.
Presence of air in the system will be
noticed by a noise in the pump or by the pump
laboring when operating under high pressure.
Proper filling of the reservoir and wo.cking the
system during the filling process, as previously
described, will work the air out of the system.
-r'
1
• ·:,
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