GMC 1976 ZEO 6083 Maintenance Manual page 476

7- 28 TRANSMISSION
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10 21 .1 32 .2 43 .3
15 .6 26 .7
37 .8 48 .9 60 71 .1
TRANSMISSION TEMPERATURE °F .
54 .4
65 .6 76 .7 87 .8 93 .9 110
82 .2 93 .3 104 .4 115 .6
126 .7
TRANSMISSION TEMPERATURE °C
A-4673
1 . Remove dipstick from filler tube and insert a
length of hose secured to a suction gun down the
dipstick . Remove enough transmission fluid so that
bottom pan will not overflow when removed.
2. Raise vehicle on hoist or place on jack stands,
and provide container to collect draining oil.
ket .
3. Remove bottom pan and gasket . Discard gas-
4. Drain fluid from bottom pan. Clean pan with
solvent and dry thoroughly with clean compressed
air.
5 . Remove intake pipe and filter assembly .
Remove and discard intake pipe O-ring.
6. Install new intake pipe O-ring into pipe bore
in transmission case and install new intake pipe and
filter assembly .
7. Install new gasket on bottom pan and install
bottom pan. Tighten bottom pan attaching screws to
12 foot-pounds.
8. Lower vehicle and add five quarts of transmis-
sion fluid through filler tube when replacing intake
Figure 15-Transmission Oil Level
pipe and filter assembly . When draining bottom pan
only, add four quarts of transmission fluid.
9 . Operate engine at 800 rpm for approximately
1-1/2 minutes with selector lever in park "P" posi-
tion .
10 . Reduce engine speed to slow idle and check
fluid level. Add fluid to bring to proper level, Figure
15 .
Adding Fluid to Dry Transmission and Converter
Assembly
The fluid capacity of the Turbo Hydra-matic
transmission and converter assembly is approxi-
mately 13 quarts, but correct level is determined by
mark on dipstick rather than by amount added. It is
important that proper level be maintained . In cases
of transmission overhaul, when a complete fill is re-
quired, including converter, proceed as follows:
1 . Add 9 quarts of transmission fluid through
filler tube.
2 . Operate engine at 800 rpm for approximately
1-1/2 minutes with selector lever in park "P" posi-
tion .