SERVICING MACHINE AFTER TRANSMISSION OVERHAUL
The transmission, torque converter, and its allied
drain plug from torque converter and inspect
hydraulic system are important links in the drive line
interior of converter housing, gears, etc. If
between the engine and the wheels. The proper oper-
presence of considerable foreign material is
ation of either unit depends greatly on the condition
noted, it will be necessary that converter be re-
and operation of the other; therefore, whenever repair
moved, disassembled and cleaned thoroughly.
or overhaul of one unit is performed, the balance of
It is realized this entails extra labor; however,
the system must be considered before the job can be
such labor is J minor cost compared to cost of
difficulties which can result from presence of
After the overhauled or repaired transmission has
such foreign material in the system.
been installed in the machine, the oil cooler, and con-
necting hydraulic system must be thoroughly cleaned.
Reassemble all components and use only type
This can be accomplished in several manners and a de-
oil recommended in lubrication section.
gree of judgment must be exercised as to the method
transmission through filler opening until fluid
comes up to LOW mark on transmission dipstick.
NOTE: If the dipstick is not accessible oil level
The following are considered the minimum steps to
check plugs are provided.
Remove LOWER check plug, fill until oil runs
1. Drain entire system thoroughly.
from LOWER oil hole. Replace filler and level
2. Disconnect and clean all hydraulic lines. Where
Run engine two minutes at 500-600 RPM to
feasible, hydraulic lines should be removed from
prime torque converter and hydraulic lines. Re-
machine for cleaning.
check level of fluid in transmission with engine
running at idle (500-600 RPM).
3. Replace oil filter elements, cleaning out filter
Add quantity necessary to bring fluid level
to LOW mark on dipstick or runs freely from
4. The oil cooler must be thoroughly cleaned. The
LOWER oil level check plug hole. Install oil
cooler should be "back flushed" with oil and
level plug or dipstick. Recheck with hot oil
compressed air until all foreign material has been
(180-200" F.) [82, 2-93, 3º C].
removed. Flushing in direction of normal oil flow
Bring oil level to FULL mark on dipstick or
will not adequately clean the cooler. If neces-
runs freely from UPPER oil level plug.
sary, cooler assembly should be removed from
machine for cleaning, using oil, compressed air
Recheck all drain plugs, lines, connections, etc.,
and steam cleaner for that purpose. DO NOT
for leaks and tighten where necessary.
use flushing compounds for cleaning purposes.