Dodge RAM TRUCK 1500 1995 Service Manual page 1520

46RH/47RH TRANSMISSION OVERHAUL 21 - 239
3-4 ACCUMULATOR HOUSING DISASSEMBLY
(FIG. 127}
(1) Remove end plate from housing.
(2) Remove piston spring.
(3) Remove piston. Remove and discard piston
seals.
3-4
ACCUMULATOR
HOUSING
COVER
PLATE
AND
SCREWS
J932M56
Fig. 127 Accumulator Housing Components
VALVE BODY CLEANINO ANi INSPECTION
The only serviceable valve body components are:
• solenoid and connector assembly
• solenoid gasket
• park rod and E-clip
® switch valve and spring
• pressure adjusting screw bracket
• throttle valve lever
• manual lever
• manual shaft seal, washer, and E-clip
• fluid filter
• detent ball and spring
The remaining valve body components are serviced
only as part of a complete valve body assembly.
Clean the valve body components with a standard
parts cleaning solution only. Do not use gasoline, ker­
osene, or any type of caustic solution.
Dry the parts with compressed air. Make sure all
passages are clean and free from obstructions. Do
not use rags or shop towels to dry or wipe off
valve body components. Lint from these materi­
als will stick to the valve body components.
Lint will interfere with valve operation and
may clog filters and fluid passages.
Inspect the throttle and manual valve levers and
shafts. Do not attempt to straighten a bent shaft or
correct a loose lever. Replace these components if
worn, bent, loose or damaged in any way.
Inspect all of the valve body mating surfaces for
scratches, nicks, burrs, or distortion. Use a straight­
edge to check surface flatness. Minor scratches may
be removed with crocus cloth using only very light
pressure.
Minor distortion of a valve body mating surface
may be corrected by smoothing the surface with a
sheet of crocus cloth. Position the crocus cloth on a
surface plate, sheet of plate glass or equally flat sur­
face. If distortion is severe or any surfaces are
heavily scored, the valve body will have to be re­
placed.
CAUTION: Many of the valves and plugs, such as
the throttle valve, shuttle valve plug, 1-2 shift valve
and 1-2 governor plug, are made of coated alumi­
num (Fig. 128). Aluminum components are identi­
fied by the dark color of the special coating applied
to the surface (or by testing with a magnet). Do not
polish or sand aluminum valves or plugs with any
type of material. This practice could damage the
special coating and cause the valves and plugs to
stick and bind.
Inspect the valves and plugs for scratches, burrs,
nicks, or scores. Minor surface scratches on steel
valves or plugs can be removed with crocus cloth but
do not round off the edges of the valve or plug
lands. Maintaining sharpness of these edges is vi­
tally important. The edges prevent foreign matter
from lodging between the valves and plugs and the
bore.
Inspect all the valve and plug bores in the valve
body. Use a penlight to view the bore interiors. Re­
place the valve body if any bores are distorted or
scored. Inspect all of the valve body springs. The
springs must be free of distortion, warpage or broken
coils.
Check the two separator plates for distortion or
damage of any kind. Inspect the upper housing,
lower housing, 3-4 accumulator housing, and transfer
plate carefully. Be sure all fluid passages are clean
and clear. Check condition of the upper housing and
transfer plate check balls as well. The check balls
and ball seats must not be worn or damaged.
Trial fit each valve and plug in its bore to check
freedom of operation. When clean and dry, the valves
and plugs should drop freely into the bores.
Valve body bores do not change dimensionally with
use. If the valve body functioned correctly when new, it
will continue to operate properly after cleaning and in­
spection. It should not be necessary to replace a valve
body assembly unless it is damaged in handling.