Allis-Chalmers 400 Series - Page 28

FIGURE 17 - Parts Removed For Clarity
3. At same time apply a small amount of grease to
the pin and groove of the shuttle drive brake detent
and to the head of the bolt that actuates the
interlock safety switch when gear shift lever is in
neutral (Figure 15}.
4. Every 1(X) hours or ones a year block up rear of
tractor and remove right hand rear wheel. With a
screw driver remove the cover cap from the shuttle
drive (Figure 15). Force pressure gun grea^ into
the space around the differential and pinion gears.
Replace cover cap.
TRACTOR WITH HYDROSTATIC TRANSMISSION
In addition to the general LUBRICATION AND SER¬
VICE items listed above for ail models of 4(H) Series
tractors, tractors that are equipped with hydrostatic
transmission must have the following attention:
1. T ransmission oil level shall be maintained up to
the bottom of the oil level and fill plug (Figure 16).
Fill with Allis-Chalmers gear lube 715 or good
quality SAE 90 transmission oil.
If it should be necessary to drain transmission use
the drain plug at lower side of housing (Figure 16).
FIGURE 18
2. Every 25 hours lubricate two grease fittings on
right hand rear axle (See Figure 16), with good
grade of automotive type pressure gun grease.
At same time place a small quantity of pressure gun
grease on the tip of switch actuating lever where it
contacts trigger of the interlock safety switch
(Figure 17).
3. Check the hydrostatic oil level (Figure 17). To be
certain of satisfactory performance it is important
thatthe hydrostatic oil is kept absolutely clean and
that the level of oil in the oil reservoir be
maintained. Before checking the hydrostatic oil
level, be certain the outside of the hydrostatic oil
reservoir is clean and that no debris can enter the
re^rvoir.
Check the hydrostatic oil level by removing the oil
level plug located on the side and nearthe top of the
reservoir. If oil runs out, the reservoir is full and
theplugshould be replaced. If oil does not run out,
replace the oil level plug, remove the nut and cover
from top of the reservoir and add oil to the reservoir
until it reaches the level of the oil level plug. Use
only Dexron ATF (Automatic Transmi^ion Fluid)
which is available locally from several major oil
companies.
Capacity of the system is 1-3/4 quarts.
4. Hydrostatic oil filter (Figure 17) -The hydrostatic
oil filter in the bottom of the reservoir should be
changed only when dirt gets into the hydrostatic
system. To change the filter, remove the nut and
cover from top of reservoir. Have a container
ready to catch the oil and diaxjnnect one of the
hoses at the bottom of the oil reservoir. Raise the
end of the hose and tie it up so oil will not run out
of the pump assembly. Drain the oil from the
re^rvoir into the container.
Use two pieces of wire with a hook formed on end
to pull large washer and filter up out of reservoir.
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