Dodge Ram Truck 1500-2500-3500. Manual — part 1798
ADJUSTMENTS - THROTTLE VALVE CABLE
A correctly adjusted throttle valve cable (1) will cause
the throttle lever on the transmission to move simulta-
neously with the throttle body lever (3) from the idle
position. Proper adjustment will allow simultaneous
movement without causing the transmission throttle
lever to either move ahead of, or lag behind the lever
on the throttle body.
ADJUSTMENT VERIFICATION
1. Turn ignition key to OFF position.
2. Remove air cleaner.
3. Verify that lever on throttle body is at curb idle
position. Then verify that the transmission throttle
lever is also at idle (fully forward) position.
21 - 1124
AUTOMATIC TRANSMISSION - 48RE - SERVICE INFORMATION
DR/DH
4. Slide cable off attachment stud on throttle body
lever.
5. Compare position (B) of cable end to attachment
stud on throttle body lever:
•
Cable end and attachment stud should be
aligned (or centered on one another) to within 1
mm (0.039 in.) in either direction (B).
•
If cable end and attachment stud are misaligned
(off center), cable will have to be adjusted as
described in Throttle Valve Cable Adjustment
procedure.
6. Reconnect cable end to attachment stud. Then with
aid of a helper, observe movement of transmission
throttle lever and lever on throttle body.
•
If both levers move simultaneously from idle to
half-throttle and back to idle position, adjustment
is correct.
•
If transmission throttle lever moves ahead of, or
lags behind throttle body lever, cable adjustment
will be necessary. Or, if throttle body lever pre-
vents transmission lever from returning to closed
position, cable adjustment will be necessary.
ADJUSTMENT PROCEDURE
1. Turn ignition switch to OFF position.
2. Remove air cleaner if necessary.
3. Disconnect cable end (3) from attachment stud on
throttle lever (1). Carefully slide cable off stud.
Do not pry or pull cable off.
4. Verify that transmission throttle lever is in fully
closed position. Then be sure lever on throttle body
is at curb idle position.
5. Pry the T.V. cable lock (A) into the UP position.
This will unlock the cable and allow for readjust-
ment.
6. Apply just enough tension on the T.V. cable (B) to
remove any slack in the cable.Pulling too tight
will cause the T.V. lever on the transmission to
move out of its idle position, which will result
in an incorrect T.V. cable adjustment. Slide the
sheath of the T.V. cable (D) back and forth until the
centerlines of the T.V. cable end (B) and the throttle
bell crank lever (C) are aligned within one millime-
ter (1mm).
7. While holding the T.V. cable in the set position
push the T.V. cable lock (A) into the down position.
This will lock the present T.V. cable adjustment.
DR/DH
AUTOMATIC TRANSMISSION - 48RE - SERVICE INFORMATION
21 - 1125
NOTE: Be sure that as the cable is pulled forward and centered on the throttle lever stud, the cable housing
moves smoothly with the cable. Due to the angle at which the cable housing enters the spring housing, the
cable housing may bind slightly and create an incorrect adjustment.
8. Reconnect the T.V. cable (B) to the throttle bellcrank lever (C).
9. Check cable adjustment. Verify transmission throttle lever and lever on throttle body move simultaneously.
CONVERTER-TORQUE
DESCRIPTION
The torque converter is a hydraulic device that cou-
ples the engine crankshaft to the transmission. The
torque converter consists of an outer shell with an
internal turbine (1), a stator (4), an overrunning clutch,
an impeller (2), and an electronically applied converter
clutch (6). The converter clutch provides reduced
engine
speed
and
greater
fuel
economy
when
engaged. Clutch engagement also provides reduced
transmission fluid temperatures. The torque converter
hub drives the transmission oil (fluid) pump.
The torque converter is a sealed, welded unit that is
not repairable and is serviced as an assembly.
CAUTION: The torque converter must be replaced
if a transmission failure resulted in large amounts
of metal or fiber contamination in the fluid.
21 - 1126
AUTOMATIC TRANSMISSION - 48RE - SERVICE INFORMATION
DR/DH
IMPELLER
The impeller is an integral part of the converter housing. The impeller consists of curved blades placed radially
along the inside of the housing on the transmission side of the converter. As the converter housing is rotated by the
engine, so is the impeller, because they are one and the same and are the driving members of the system.
Impeller
1 - ENGINE FLEXPLATE
4 - ENGINE ROTATION
2 - OIL FLOW FROM IMPELLER SECTION INTO TURBINE
SECTION
5 - ENGINE ROTATION
3 - IMPELLER VANES AND COVER ARE INTEGRAL
DR/DH
AUTOMATIC TRANSMISSION - 48RE - SERVICE INFORMATION
21 - 1127
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст