Case W9 - Transmission and Converter Service

TRANSMISSION AND CONVERTER OIL AND FILTER CHANGE
The transmission must be serviced after
every 1000 hours of operation or yearly .
Thi s service consists of changing the trans-
mission oil and oil filter and cleaning the
oil strainer.
1. Remove the drain plug and oil strainer
and gasket. Discard gasket.
2. Clean the oil strainer in cleaning solvent.
NOTE: Do not reinstall drain plug or
strainer until the oil filter has been
serviced . This procedure is recommen-
ded to allow maximum oil drainage.
Figure 5
3. Loosen the filter cover retaining clamp
Figure 6
11
and remove clamp, filter cover with
relief valve, gasket and filter element.
Discard the gasket and filter element.
4. Remove the remaining oil from the filter
case with a hand suction gun. Clean the
inside of the filter case with a lint free
cloth.
5. Place a new filter in the filter case.
Position a new seal on the relief valve
and a new gasket on the filter cover.
6. Position filter cover and clamp on filter
case and tighten clamp bolts.
7. Fill the transmission with 5 gallons of
Case TCH oil. Start the engine and run at
low idle and slowly shift the transmission
through all ranges. With the engine run-
ning and the transmission in neutral, oil
should run out of the low level valve. Add
oil as necessary to obtain the low oil
level.
8. Run the engine at 1000 RPM with the
transmission in neutral until the oil has
reached operating temperature (180° -
200°).
With the engine running at low idle
and the transmission in neutral, oil
should run out the full level valve . Add
oil as necessary to obtain the proper
level. Check for oil leaks.
CAUTION: The oil level must not be
lower than the low level valve nor above
the full level valve.