Page 66 - Hydra-matic 6 Speed RWD Technician's Guide (October 2005)

52B
4a Shift Solenoid 2:
#3 ball check valve.
4c #3 Ball Check Valve:
the clutch select valve 3.
4d Clutch Select Valve #3:
Page 76
passes through the valve and exhausts.
4b 3-5 Reverse Clutch Regulator Valve:
#1 pressure switch and opens the switch.
in preparation for a shift into low or reverse gear.
COMPLETE HYDRAULIC CIRCUIT
CLUTCH
SPRAG
PS1 fluid passage. PS1 fluid is then sent to the normally closed
Actuator feed limit fluid is routed through the valve and into the
moves the valve against clutch select valve 2 spring force. This
Solenoid 2 fluid seats the #3 ball check valve against 456 CL
fluid passage and fluid is forced through orifice #20 into the
CSV3 enable fluid circuit. CSV3 enable fluid is then routed to
CBR1 fluid is then routed to the low & reverse clutch assembly
through orifice #49 where it enters the CBR fluid circuit and an
exhaust passage at the clutch select valve 3 (this fluid is intended
to keep the low and reverse clutch full of fluid but not pressurized).
routed: to clutch select valve 3, into the CBR1 fluid circuit and,
fluid to enter the solenoid 2 fluid circuit and is then routed to the
allows CBR1/456 CL FD fluid to pass through the valve and
Shift solenoid 2 is energized (ON) allowing actuator feed limit
enter the CBR1/CBR FD circuit. CBR1/CBR FD fluid is then
Note: Refer to Shift Solenoid and Pressure Control Solenoid
information on pages 44 & 47 for a description solenoid operation.
CSV3 enable fluid moves the clutch select valve 3 against clutch
select valve 3 spring force. CBR fluid at the clutch select valve 3
DECREASE CSV2 enable fluid is routed to the clutch select valve 2 and 3d Clutch Select Valve 2: 2 CSV2 enable fluid circuit. CONV FD fluid passage and fluid is forced through orifice #22 into the Solenoid 1 fluid seats the #2 ball check valve against the reverse 3c #2 Ball Check Valve: force. valve and moves the valve against TCC regulator valve spring Solenoid 1 fluid is routed to the TCC regulator valve and shuttle 3b TCC Regulator Valve and Shuttle Valve: regulator valve and shuttle valve (SHTL). the #2 ball check valve and through orifice #
ISOLATOR PRESSURE REGULATOR VALVE LINE CLUTCH 1-2-3-4
3
EX
2A
5
LINE PRESSURE CB26 LINE 2a LINE N.H. SOLENOID 3 CONTROL PRESSURE CBR1/C456 LINE N.L. OFF SOLENOID CONTROL PRESSURE TCC ON SOL 1 SHIFT N.C. COMP FEED 35 REV CLUTCH 1234 CLUTCH
N.L.
N.L.
N.H.
LINE
C35R
C1234
N.H.
ON
N.C.
SHIFT
SOL 2
4a
CONTROL
CONTROL
PRESSURE
CONTROL
CONTROL
PRESSURE
ON
PRESSURE
SOLENOID 5
OFF
SOLENOID
SOLENOID 2
OFF
OFF
SOLENOID 4
ACT FD LIM SOL 1 3a VALVE ASSEMBLY SOLENOID CONTROL LINE CLUTCH REVERSE 3-5
PCS LINE
PCS TCC
1
N.C.
PS1
PCS 35 REV CL ACT FD LIM ACT FD LIM SOL 2 PCS 26 CL ACT FD LIM ACT FD LIM
ACT FD LIM
ACT FD LIM ACT FD LIM
PCS 1234 CL
PCS LINE PCS CBR1/456 CL SOL 1
LINE LINE LINE
COMP FD COMP FD 26 COMP FD
EX BF PCS 26 CL 2b
4b
31
44
EX 39
PCS 35 REV CL
48
42
EX BF
EX BACKFILL
ACT FD LIM
LINE
EX
SOL 2
EX 35 REV CL CBR1/456 CL FD 38 456 CLUTCH
LINE
47
EX BF 456 CL CBR1/C456 CL REG VALVE
2-6 GAIN
EX BACKFILL
36
456 CL BOOST VALVE
COMP FD
EX BF 30 EX (Engine Running) PARK
PCS 1234 CL
35
46
35R FD 3-5 REV CL REGULATOR VALVE PS1 26 CL 2-6 CLUTCH REG 43 VALVE CBR1 FDBK EX PS5
SHTL
ACT FD LIM LINE ASSEMBLY CLUTCH 4-5-6
PS3 PRESSURE RELIEF EXHAUST BACKFILL ACT FD LIM
EX EX CBR1/456 CL FD 37 DRIVE 1-6 SOL 1
Figure 48
EX
34
33
PCS 1234 CL
35 REV CL FDBK 35 CL REV FD 26 CL/1234 CL FD
1234 CL DFLT
PS4 1234 CL 45 26 CL 41
EX 51
CBR CBR CBR
1234 CL FD
1-2-3-4 CL REGULATOR VALVE
CBR 1 CBR 1
49
SOL 1 SOL 1
50
ACT FD LIM ASSEMBLY 2-6 CLUTCH
LINE
12
DRIVE
ACT FEED LIMIT VALVE
DRIVE
SOL 2
LINE
1234 CL FDBK
LINE 26 CLUTCH
COMP FD
LINE
REVERSE CBR1/CBR FD CSV2 LATCH
SOL 1
REG APPLY
DRIVE BRAKE DRIVE 1-6 3d 1
3b
DRV B CBR1/456 CL FD
EX DRIVE REVERSE
11
DRIVE EX MANUAL VALVE
REVERSE ASSEMBLY CENTER SUPPORT
456 CL FD EX EX SOL 1
14
EX M
456 CL
EX CLUTCH SELECT VALVE 2
EX TCC REGULATOR VALVESHTL DRIVE D
CBR
CLUTCH SELECT VALVE 3
REG APPLY
13
LINE FD REG VALVE COMPENSATOR PCS TCC CBR1/CBR FD CBR1/CBR FD REVERSE N
EX R
35 CL REV FD
COMP FD 21 ASSEMBLY CLUTCH REVERSE LOW &
EX 3c
1234 CL DFLT P
EX 10 9 4c 1234 CL DFLT FD DRIVE #2
SOL 1 SOL 2 EX
CSV3 ENABLE
1234 CL DFLT FD
20
35 REV CL
456 CL
CSV2 ENABLE
#3
4d
22
53