Technical Service Information
Technical Service Information
Technical Service Information
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"01M" OVERDRIVE RANGE 1st to 2nd GEAR TRANSITION<br />
B2 BRAKE<br />
<strong>Technical</strong> <strong>Service</strong> <strong>Information</strong><br />
N92-EV5<br />
"ON*"<br />
.044"<br />
K2 CLUTCH<br />
SOLENOID<br />
FEED<br />
x<br />
x<br />
x x<br />
.030"<br />
K1 CLUTCH<br />
FROM MANUAL<br />
VALVE<br />
X<br />
K3 CLUTCH<br />
x<br />
TO K1/B1<br />
SHIFT VALVE<br />
TO K3/MANUAL 1<br />
LOCKING VALVE<br />
B1 APPLY<br />
VALVE<br />
.063"<br />
B1 BRAKE<br />
.057"<br />
x<br />
Figure 3<br />
x<br />
B2-BRAKE<br />
REG. VALVE<br />
SOLENOID APPLICATION<br />
OFF N88-EV1<br />
N89-EV2<br />
ON<br />
N90-EV3<br />
N91-EV4<br />
FROM K1 CONTROL<br />
VALVE FROM 2-3 TIMING<br />
VALVE<br />
AUTOMATIC TRANSMISSION SERVICE GROUP<br />
x<br />
.048"<br />
ON<br />
OFF<br />
N92-EV5<br />
ON*<br />
N93-EV6<br />
MOD*<br />
N94-EV7<br />
OFF<br />
MOD* = MODULATING<br />
* = ON BRIEFLY DURING THE<br />
ENGAGEMENT THEN OFF<br />
K3 CLUTCH<br />
REG. VALVE<br />
K1 CLUTCH<br />
REG. VALVE<br />
x<br />
.047"<br />
LEGEND<br />
MAIN LINE PRESSURE<br />
N92-EV5 IS "ON" WHEN<br />
THE GEAR CHANGE IS<br />
COMMANDED<br />
x<br />
SOLENOID REG.PRESSURE<br />
PUMP SUCTION<br />
CONVERTER REG.PRESSURE<br />
LUBE PRESSURE<br />
K1 CLUTCH PREFILL (10psi.)<br />
TO 2-3 TIMING<br />
VALVE<br />
CONNECTED CIRCUIT<br />
SUMMARY: THIS CONNECTS LINE<br />
PRESSURE FROM THE MANUAL VALVE<br />
TO THE 1ST LAND OF THE B2<br />
REGULATOR VALVE CONTROLS THE<br />
APPLY RATE OF THE B2 CLUTCH<br />
Copyright © 2001 ATSG
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