Page 61 - Hydra-matic 6 Speed RWD Technician's Guide (October 2005)

50B
3.

circuit.

3c Torque Converter:
PRESSURE REGULATION
CLUTCH COMPENSATORS:
throughout the transmission.
converter clutch control valve.
3a Converter Feed Limit Valve:

3b Torque Converter Clutch (TCC) control valve:
TORQUE CONVERTER (RELEASED POSITION ONLY)
clutch, 3-5 Reverse clutch and 4-5-6- clutch assemblies.
apply circuit and passes through the TCC control valve into
the cooler feed circuit. Cooler feed fluid is routed through
converter feed limit fluid to enter the TCC release fluid
TCC release fluid is routed to the torque converter, keeping
a constant flow of fluid through the converter to keep it
cool. Fluid leaves the torque converter through the TCC
valve regulate compensator feed fluid pressure. Compensator
feed fluid is then routed to the compensators of the 1-2-3-4
fluid circuit. Compensator feed fluid routed to the end of
the valve and spring force acting on the other end of the
Converter feed fluid is routed through the valve and into the
specific maximum pressure as it is routed to the torque
Spring force holds the valve in the released position allowing
converter feed limit circuit. Spring force and converter feed
fluid at the valve limits converter feed limit pressure to a
the cooler and into the lube fluid circuit to provide lubrication
2
TCC APPLY routed through the valve and into the compensator feed Line pressure at the compensator feed regulator valve is 2a Compensator Feed Regulator Valve: 2. control solenoid line (PCS line) fluid circuit. regulates actuator feed limit fluid pressure into the pressure Controlled by the TCM, the line pressure control solenoid 1c Line Pressure Control Solenoid: regulator valve. solenoid, C1234 pressure control solenoid and 3-5 clutch line pressure control solenoid, C35R pressure control solenoid, CB26 pressure control solenoid, shift s
COOLER FEED
TCC RELEASE CONVERTER TORQUE
1
EX
COMP FD
TCC APPLY
TCC REL
COOLER FD
TCC CONTROL VALVE 7 (LOCATED IN PUMP) VALVE PRESSURE RELIEF
14
COMPENSATION
EX REG APP 3 LINE
LINE 13 FD REG VALVE COMPENSATOR PCS TCC CONV FD LIMIT CONV FD LIMIT
COMP FD 3b TCC RELEASE TCC APPLY
EX 2a LUBE FRONT CONV FD LIMIT 6 3a ASSEMBLY CONVERTER TORQUE 3c

DECREASE 2 CONV FD 1a LINE REGULATION 1
SUMP
FILTER
PRESSURE
ISOLATOR PRESSURE REGULATOR VALVE LINE COMMON HYDRAULIC FUNCTIONS FOR ALL RANGES
SUCTION
3
ACT FD LIM
EX
Figure 46
2A
FLUID
5
PUMP
12
LINE
LINE
ACT FEED LIMIT VALVE 1b ACT FD LIM
PCS LINE
LINE
LINE N.L. CB26 N.H. N.L. LINE
1c
N.L.
C35R
N.H.
LINE
N.H.
C1234
CONTROL
CONTROL
CONTROL
PRESSURE
PRESSURE
SOLENOID 2
OFF
PRESSURE
SOLENOID 5
OFF
SOLENOID
ACT FD LIM ON SOL 2 SOL 2 SHIFT N.C. PCS LINE OFF SOLENOID 4 CONTROL PRESSURE ACT FD LIM ON SOLENOID 3 CONTROL PRESSURE CBR1/C456 ACT FD LIM PCS TCC OFF SOLENOID CONTROL PRESSURE TCC ACT FD LIM ON SOL 1 SOL 1 SHIFT N.C. LINE
ACT FD LIM
ACT FD LIM
ACT FD LIM
ACT FD LIM ACT FD LIM
PCS LINE PCS 26 CL PCS CBR1/456 CL PCS TCC
PCS 1234 CL
PCS 34 REV CL
ACT FD LIM
51