A U TO M A TIC T R A N SM ISSIO N 7-59
T R A N SM ISSIO N OVERHAUL
GENERAL
NOTE: Certain precautions must be observed
when overhauling automatic transm issions. Unless
proper care is exercised , considerable damage
may be done to the various components of the
transm ission.
1.
The importance of cleanliness cannot be
over-em phasized. Overhaul should not be attempted
where dirt or other foreign m aterials are present.
Before attempting any disassem bly operation, the
exterior of the case should be thoroughly cleaned
to prevent the possibility of dirt entering the trans
m ission internal mechanism. During overhaul pro
cedures, all parts should be thoroughly cleaned in
cleaning solvent and then air dried. Do not use a
solvent which could damage rubber se a ls or clutch
plate facings. Wiping cloths or rags should not be
used to dry parts as lint may be deposited on the
parts. All parts, except those being actually worked
on, should be kept covered with clean paper.
2. Avoid nicking, marring, or burring all su r
fa ces, particularly those precision-finished. At
many points in the transm ission, a m etal-to-m etal
contact without gasket is depended upon to prevent
leakage of oil at high p ressu re.
3. No m aterials, other than those listed should
be used in overhauling the transm ission. Do not.
under any circum stances, use grease, shellac, or
ordinary engine oil inside the transm ission.
4. In assem bling components, use new snap
rings, cotter pins, gaskets, and oil sea ls.
5. When assem bling the transm ission or sub-
assem b lies during overhaul procedures, lubricate
each moving part with clean transm ission fluid
before part is installed.
DISASSEM BLY
1. With transm ission in cradle on portable
NOTE: Converter contains a large amount of
jack, remove converter assem bly by pulling straight
o il.
out.
2. Install holding fixture (J-8763-01) on the
INTERMEDIATE CLUTCH
REAR BAND
TURBINE
CONVERTER PUMP
FORWARD CLUTCH
DIRECT CLUTCH
OUTPUT CARRIER AN D
GEAR UNITS
OUTPUT SHAFT
MAINSHAFT
PUMP
TURBINE SHAFT
REAR SERVO UNIT
FRONT SERVO UNIT
CONTROL VALVE
Figure
7
— Transmission Cross Section
CHEVROLET OVERHAUL M A N U A L SUPPLEMENT
Summary of Contents for 40 60 Series
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