Page 86 - Hydra-matic 6 Speed RWD Technician's Guide (October 2005)

62B
1d 2-6 Clutch:
2ND CLUTCH APPLIES
1c 2-6 Clutch Regulator Valve:
Page 86
1b 2-6 Clutch Regulator Gain Valve:
COMPLETE HYDRAULIC CIRCUIT
and to the 2-6 clutch within the center support.
orifice #44 to the 2-6 clutch regulator gain valve.
2-6 clutch spring force to apply the 2-6 clutch plates.
CLUTCH
SPRAG
26 clutch fluid circuit where it passes through orifice #41
force to allow 26 clutch/1234 clutch feed fluid to pass through
the valve. 26 clutch/1234 clutch feed fluid is routed into the
through the center support and to the 2-6 clutch piston
assembly. 26 clutch fluid pressure moves the piston against
and then to the spring end of the 2-6 clutch regulator valve,
26 clutch fluid from the 2-6 clutch regulator valve is routed
regulator valve to be different for a 1-2 shift verses a 5-6
shift. For a 1-2 shift, PCS 26 clutch fluid pressure acts on a
The 2-6 clutch regulator gain valve allows the gain (valve
input to output pressure magnification factor) of the 26 clutch
differential area resulting in the "high gain" pressure output.
PCS 26 clutch fluid moves the 2-6 clutch regulator / gain
valve assembly against the 2-6 clutch regulator valve spring
C35R
N.L.
N.L.
N.H.
LINE
N.L.
N.H.
C1234
CB26
TCC
ON
N.C.
N.C.
SHIFT
SOL 2
CONTROL
CONTROL
CONTROL
CONTROL
CONTROL
PRESSURE
SOLENOID
PRESSURE
CONTROL
PRESSURE
CBR1/C456
PRESSURE
SOLENOID
PRESSURE
ON
ON
SOLENOID 2
N.H. OFF
OFF
SOLENOID 5
OFF
PRESSURE
SOLENOID 3
SOLENOID 4
VALVE ASSEMBLY
1a
ACT FD LIM fluid circuit. PCS 26 clutch fluid is then routed through OFF SOL 1 SOL 1 allowing actuator feed limit fluid to enter the PCS 2-6 clutch SHIFT 5 The CB26 pressure control solenoid 4 is commanded ON, N.C. PS5 1a CB26 Pressure Control Solenoid 4: 1 SOLENOID CONTROL command ON the normally-low pressure control solenoid 4. other vehicle sensors to determine the precise moment to input and output speed sensors, the throttle position sensor and (TCM) receives input signals from the automat
PCS TCC
1
3
N.C.
N.C.
PS1
PS3
PCS LINE ACT FD LIM SOL 2 ACT FD LIM ACT FD LIM COMP FEED
ACT FD LIM
ACT FD LIM
ACT FD LIM ACT FD LIM LINE
PCS 35 REV CL PCS CBR1/456 CL CLUTCH REVERSE 3-5
PCS 1234 CL
LINE LINE LINE 35 REV CLUTCH 1234 CLUTCH
COMP FD COMP FD 26 COMP FD
EX BF PCS 26 CL PCS TCC PCS CBR1/456 CL
44
1b
42
EX BACKFILL
48
36
EX BACKFILL
PCS 35 REV CL
PCS CBR1/456 CL PS5 1234 CLUTCH COMP FD
EX 39
ACT FD LIM
SOL 2
35
EX 456 CL EX
SHTL
2-6 GAIN
47
EX BF EX BF 30 LINE EX BF
EX 46 35 REV CL 26 CL 43 CBR1/456 CL FD CBR1/C456 CL REG VALVE 38
34
35R FD 3-5 REV CL REGULATOR VALVE PS1 2-6 CLUTCH REG EXHAUST BACKFILL
ACT FD LIM PS3 1c PRESSURE RELIEF VALVE 456 CLUTCH
33
EX PS5
PCS 1234 CL
1234 CL DFLT
LINE
PS4 1234 CL EX 35 REV CL FDBK CBR1 FDBK EX ACT FD LIM LINE
COMP FD
EX #7 35 REV CL 26 CL 41 26 CL/1234 CL FD 37 DRIVE 1-6 ASSEMBLY CLUTCH 4-5-6
1-2-3-4 CL REGULATOR VALVE
1234 CL FD
50
1234 CL 25 45 1234 CL 1234 CLUTCH
DRIVE 1-6 DRIVE RANGE - 2ND GEAR
#6
26 CL 26 CLUTCH
35R SPL #5 #4
32
26 CL/1234 CL FD 456 CL PS5 1d 26 CLUTCH ASSEMBLY 2-6 CLUTCH
1234 CL FDBK
Figure 58
CBR 1
35 CL REV FD
DRIVE 1-6 CBR
ACT FD LIM ASSEMBLY CENTER SUPPORT
1234 CL
12
ACT FEED LIMIT VALVE
LINE
CSV2 LATCH
LINE ASSEMBLY CLUTCH REVERSE LOW &
#1
DRIVE 1-6
LINE
DRIVE 1-6
COMP FD
REVERSE DRIVE
PCS 1234 CL 1234 CL BOOST VALVE 35 CL REV FD DRV B
DRIVE
29
1234 CL DRIVE BRAKE DRIVE BRAKE CBR1/456 CL FD
1234 CL DFLT
1234 CL FDBK DRV B
REG APPLY
EX EX DRIVE LINE
REVERSE EX EX
11
456 CL FD 456 CL FD MANUAL VALVE
456 CL
REVERSE
SOL 2
14
EX 35 CL REV FD CBR EX CLUTCH SELECT VALVE 2
CBR1/CBR FD EX
CLUTCH SELECT VALVE 3
EX CBR1/CBR FD EX
REG APPLY
13
LINE FD REG VALVE COMPENSATOR TCC REGULATOR VALVE SHTL PCS TCC 21 DRIVE 1-6
EX M
COMP FD DRIVE
1234 CL DFLT FD EX D
EX 9 1234 CL DFLT FD N
CSV3 ENABLE
10
SOL 1 20 35 REV CL R
456 CL 22 CSV2 ENABLE P
#3
63