Dodge 2001 Ram 1500 Owner's Manual page 1827

21 - 192 AUTOMATIC TRANSMISSION - 42RE
ACCUMULATOR (Continued)
Fig. 60 Accumulator in SECOND Gear Position
1 - BOTTOM OF BORE
2 - LINE PRESSURE
3 - SHUTTLE VALVE
INSPECTION
Inspect the accumulator piston and seal rings (Fig.
61). Replace the seal rings if worn or cut. Replace the
piston if chipped or cracked.
Check condition of the accumulator inner and
outer springs (Fig. 61). Replace the springs if the
coils are cracked, distorted or collapsed.
Fig. 61 Accumulator Components
1 - INNER SPRING
2 - ACCUMULATOR PISTON
3 - OUTER SPRING
4 - SEAL RINGS
BANDS
DESCRIPTION
KICKDOWN (FRONT) BAND
The kickdown, or "front", band (Fig. 62) holds the
common sun gear of the planetary gear sets. The
front (kickdown) band is made of steel, and faced on
its inner circumference with a friction-type lining.
One end of the band is anchored to the transmission
case, and the other is acted on with a pushing force
by a servo piston. The front band is a single-wrap
design (the band does not completely encompass/
wrap the drum that it holds).
Fig. 62 Front Band
1 - FRONT BAND
2 - TRANSMISSION HOUSING
LOW/REVERSE (REAR) BAND
The low/reverse band, or "rear", band (Fig. 63) is
similar in appearance and operation to the front
band. The rear band is slightly different in that it
does not use a link bar, but is acted directly on by
the apply lever. This is referred to as a double-wrap
band design (the drum is completely encompassed/
wrapped by the band). The double-wrap band pro-
vides a greater holding power in comparison to the
single-wrap design.
OPERATION
KICKDOWN (FRONT) BAND
The kickdown band holds the common sun gear of
the planetary gear sets by applying and holding the
front clutch retainer, which is splined to the sun gear
driving shell, and in turn splined directly to the sun
gear. The application of the band by the servo is typ-
ically done by an apply lever and link bar.
BR/BE