Page 74 - Hydra-matic 6 Speed RWD Technician's Guide (October 2005)

56B
exhaust.
and exhaust.
1e 3-5 Reverse Clutch:
1f Clutch Select Valve 3:
the clutch select valve 3.
passage at the manual valve.
Page 78
3-5 REVERSE CLUTCH RELEASES:
1c 3-5 Reverse Clutch Boost Valve:
1b C35R Pressure Control Solenoid 2:
1d 3-5 Reverse Clutch Regulator Valve:
valve where excess pressure is exhausted.
COMPLETE HYDRAULIC CIRCUIT
CLUTCH
regulator valve allowing the 3-5 reverse clutch to release.
SPRAG
reverse supply fluid is routed around #5 ball check valve
valve to allow 3-5 reverse clutch fluid from the 3-5 reverse
through orifice #30 to the exhaust backfill pressure relief
fluid circuits. The reverse fluid from the #2 ball check
check valve and into the 3-5 reverse supply circuit. 3-5
3-5 reverse clutch regulator valve spring force moves the
fluid then enters the exhaust backfill fluid circuit and is routed
enter the exhaust backfill fluid circuit. 3-5 reverse clutch
clutch and clutch select valve 2 to pass through the valve and
3-5 reverse boost valve spring force moves the valve to
allow 3-5 reverse clutch feedback fluid from the 3-5 reverse
and into the 3-5 clutch reverse feed circuit and exhausts at
clutch regulator valve to enter the 3-5 reverse clutch circuit
valve and clutch select valve 3 is opened to an exhaust
3-5 reverse clutch spring force combined with a force from
The C35R pressure control solenoid 2 is commanded OFF
the compensator moves the 3-5 reverse clutch piston to release
the 3-5 reverse clutch plates and force 3-5 reverse clutch fluid
to exhaust from the 1-2-3-4 and 3-5 reverse clutch housing.
3-5 reverse clutch fluid is then routed to the 3-5 reverse clutch
spring force. 3-5 reverse feed fluid is routed around #7 ball
When reverse fluid exhausts through the manual valve, CSV3
enable fluid moves the valve against clutch select valve 3
clutch boost valve and 3-5 reverse clutch regulator valve to
allowing PCS 3-5 reverse clutch fluid from the 3-5 reverse
N.L.
C35R
N.H.
N.L.
N.L.
LINE
CB26
N.H.
N.H.
C1234
ON
TCC
ON
SHIFT
SOL 2
N.C.
SHIFT
CONTROL
CONTROL
CONTROL
PRESSURE
CONTROL
CONTROL
PRESSURE
PRESSURE
CONTROL
SOLENOID
CBR1/C456
PRESSURE
PRESSURE
SOLENOID
ON
OFF
PRESSURE
OFF
SOLENOID 5
OFF
SOLENOID 2
OFF
SOLENOID 4
SOLENOID 3
SOL 1
1b
ACT FD LIM blocks line pressure from entering the reverse and drive SOL 1 The manual valve is moved to the Neutral position and N.C. 1a Manual Valve: 1 VALVE ASSEMBLY SOLENOID occur in the hydraulic system: CONTROL solenoid 2 is commanded OFF and the following changes would operating in Reverse (R), the normally high C35R pressure control range. However, if Neutral is selected after the vehicle was hydraulic and electrical system operation is identical to Park (P) When the gear selector is moved
PCS TCC
1
N.C.
PS1
PCS LINE ACT FD LIM SOL 2 PCS 26 CL ACT FD LIM ACT FD LIM COMP FEED
ACT FD LIM
ACT FD LIM
ACT FD LIM ACT FD LIM LINE
PCS 1234 CL
PCS 35 REV CL PCS CBR1/456 CL SOL 1 CLUTCH REVERSE 3-5
LINE LINE LINE 35 REV CLUTCH 1234 CLUTCH
COMP FD COMP FD 26 COMP FD 1d
EX BF PCS 26 CL PCS TCC PCS CBR1/456 CL
1e
44
42
EX BACKFILL
36
48
PCS 35 REV CL
EX BACKFILL
EX 39 35 REV CLUTCH 1234 CLUTCH COMP FD
PCS 1234 CL
ACT FD LIM
SOL 2
35
SHTL
EX 40 456 CL 31 EX
PCS 35 REV CL
2-6 GAIN
47
EX BF 35R CL BOOST VALVE EX BF 30 LINE 456 CL BOOST VALVE EX BF PS5
EX 46 26 CL 43 CBR1/456 CL FD 38
34
35R FD 3-5 REV CL REGULATOR VALVE PS1 2-6 CLUTCH REG CBR1/C456 CL REG VALVE
ACT FD LIM EX PS3 EXHAUST BACKFILL EX
EX PRESSURE RELIEF VALVE PS5
33
PCS 1234 CL
1234 CL DFLT
PS4 1234 CL EX 35 REV CL FDBK CBR1 FDBK EX ACT FD LIM LINE
LINE
EX 35 REV CL 1c 26 CL/1234 CL FD CBR1/456 CL FD 37 DRIVE 1-6 SOL 1 PS5 ASSEMBLY CLUTCH 4-5-6
COMP FD
1234 CL FD
1-2-3-4 CL REGULATOR VALVE
26 CL 41
35 REV CL 35 REV CLUTCH 456 CLUTCH
45
50
1234 CL 1234 CL 1234 CLUTCH (Engine Running) NEUTRAL
#7
DRIVE 1-6
35R SPL #5 26 CLUTCH ASSEMBLY 2-6 CLUTCH
1234 CL FDBK
Figure 52
25
51
CBR CBR
CBR 1
49
SOL 1 SOL 1 SOL 1
ACT FD LIM ASSEMBLY CENTER SUPPORT
1234 CL
12
ACT FEED LIMIT VALVE
LINE
1f
LINE ASSEMBLY CLUTCH REVERSE LOW &
CBR1/CBR FD
35 REV CL
REVERSE
LINE
REVERSE CSV2 LA TCH DRIVE
COMP FD
PCS 1234 CL 1234 CL BOOST VALVE
DRIVE
29
1234 CL DFLT
1234 CL DRIVE BRAKE DRIVE BRAKE
1234 CL FDBK DRV B
REG APPLY
EX EX DRIVE LINE
CBR1/456 CL FD
REVERSE EX EX SOL 1
11
456 CL FD 456 CL FD 1a
456 CL
REVERSE MANUAL VALVE
SOL 2
14
EX 35 CL REV FD CBR EX
CBR1/CBR FD EX
CLUTCH SELECT VALVE 3
DRIVE 1-6
EX TCC REGULATOR VALVE SHTL CBR1/CBR FD EX
REG APPLY
13
LINE FD REG VALVE COMPENSATOR PCS TCC 21 DRIVE 1-6
CLUTCH SELECT VALVE 2
EX #2 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
57