PCS 4LHD User Manual

Page 1
Ph: 804.227.3023
10511 Old Ridge Rd. Ashland, VA 23005
4LHD/4LHDX Application Manual
Powertrain Control Solutions
REV 1.1
Section 1. Transmission Specications and Attributes
1.1 General Description
The 4LHD/4LHDX is a fully automatic, electronically controlled, RWD/4WD transmission. It consists primarily of a three
element hydraulic torque converter with a converter clutch, two planetary gear sets, various clutches, an oil pump, and
a control valve body. There are four forward driving gear ranges in addition to neutral, reverse, and park. The torque
converter clutch is available in 2nd, 3rd, and 4th (overdrive) gear. Park range is available in applications that do not
exceed the GVW ratings provided in Section 1.2.5. The mass of a complete system package is estimated to be between
87-113 kg (192-250 lb). This does not include cooler lines, radiator, uid within the external cooling system, shifter cable,
shifter bracket assembly, rear transmission mount isolator, external sensors (such as TPS), and otherwise anything else
vehicle specic not included in Section 1.2.1.
Figure 1.1-1
RevSheet 924214609
CASE
ASSEMBLY
REVERSE
INPUT CLUTCH
INPUT CLUTCH
HOUSING
OVERRUN
CLUTCH
FORWARD
CLUTCH
FORWARD
SPRAG CL
ASSEMBLY
3-4
CLUTCH
INPUT
PLANETARY
GEARSET
LO AND
REVERSE
CLUTCH
TORQUE
CONVERTER
ASSEMBLY
STATOR
ROLLER
CLUTCH
PUMP
ASSEMBLY
LO ROLLER
CLUTCH
ASSEMBLY
REACTION
PLANETARY
GEARSET
TURBINE
SHAFT
2-4
BAND
ASSEMBLY
INSIDE
DETENT LEVER
MANUAL
SHAFT
CONTROL VALVE
ASSEMBLY
PARKING LOCK
ACTUATOR ASSEMBLY
OUTPUT
SHAFT
PARKING
PAWL
SPEED
SENSOR
SHIFT SOLENOID
2-4
REVERSE
OVERRUN FORWARD
FORWARD
3-4 LO/ROLLER LO/REV.
RANGE GEAR
1-2 2-3
BAND
INPUT
CLUTCH CLUTCH
SPRAG CL.
CLUTCH CLUTCH CLUTCH
CLUTCH ASSEMBLY
PARK ON* ON* APPLIED
REVERSE ON* ON* APPLIED APPLIED
NEUTRAL ON* ON*
1st ON ON APPLIED HOLDING HOLDING
2nd OFF ON APPLIED APPLIED HOLDING
D
3rd OFF OFF APPLIED HOLDING APPLIED
4th ON OFF APPLIED APPLIED APPLIED
1st ON ON APPLIED HOLDING HOLDING
D 2nd OFF ON APPLIED APPLIED HOLDING
3rd OFF OFF APPLIED APPLIED HOLDING APPLIED
1st** ON ON APPLIED APPLIED HOLDING HOLDING
2
2nd OFF ON APPLIED APPLIED APPLIED HOLDING
1
1st ON ON APPLIED APPLIED HOLDING HOLDING APPLIED
2nd
*** OFF ON APPLIED APPLIED APPLIED HOLDING
* SHIFT SOLENOID STATE IS A FUNCTION OF VEHICLE SPEED AND MAY CHANGE IF VEHICLE SPEED INCREASES SUFFICIENTLY IN PARK,
REVERSE OR NEUTRAL. HOWEVER, THIS DOES NOT AFFECT TRANSMISSION OPERATION.
** MANUAL SECOND – FIRST GEAR IS ELECTRONICALLY PREVENTED UNDER NORMAL OPERATING CONDITIONS.
*** MANUAL FIRST – SECOND GEAR IS ONLY AVAILABLE ABOVE APPROXIMATELY 48 TO 56 KM/H (30 TO 35 MPH).
FIGURE 2.1-1 General Arrangement
2.1. General Description
The Hydra-matic 4L60-E is a fully automatic, electronically controlled, rear-wheel drive transmission. It
consists primarily of a three element hydraulic torque converter with a converter clutch, two planetary gear
sets, various clutches, an oil pump, and a control valve body. There are four forward driving gear ranges in
addition to neutral, reverse, and park. The torque converter clutch is available in 2nd, 3rd, and 4th
(overdrive) gear. Park range is available in all GVW applications.
Abuse
Protection
Solenoid
Abuse
Protection
Solenoid

PCS 4LHD Specifications

General

Brand	PCS
Model	4LHD
Category	Microphone system
Language	English