Chrysler DODGE D150 1993 Service Manual page 1333

21 - 332 OVERDRIVE UNIT OVERHAUL—42RH/46RH
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GOVERNOR GOVERNOR REAR BEARING
OUTPUT SHAFT
Fig. 36 Output Shaft And
Discard the old case gasket and seals. Do not at­
tempt to salvage these parts. They are not reusable.
Replace any of the overdrive unit snap rings if dis­
torted or damaged.
Minor nicks or scratches on components can be
smoothed with crocus cloth. However, do not attempt
to reduce severe scoring on any components with
abrasive materials. Replace severely scored compo­
nents; do not try to salvage them.
Check condition of the park lock components and
the overdrive case (Fig. 36).
Replace the case if cracked, scored, or damaged.
Replace the park lock pawl, plug, or spring if worn or
damaged. Re sure the bullet at the end of the park
lock rod is in good condition. Replace the rod if the
bullet is worn or the rod itself is bent or distorted.
Do not attempt to straighten the rod.
Check the bushings in the overdrive case. Replace
the bushings if severely scored or worn. Also replace
the case seal if loose, distorted, or damaged.
Examine the overdrive and direct clutch discs and
plates (Fig. 34). Replace the discs if the facing is
worn, severely scored, or burned and flaking off. Re­
place the clutch plates if worn, heavily scored, or
cracked. Check the lugs on the clutch plates for
wear. The plates should slide freely in the drum. Re­
place the plates or drum if binding occurs.
Governor Components
Check condition of the annulus gear, direct clutch
hub, clutch drum and clutch spring (Fig. 34). Replace
the gear, hub and drum if worn or damaged. Replace
the spring if collapsed, distorted, or cracked.
Be sure the splines and lugs on the gear, drum and
hub are in good condition. The clutch plates and
discs should slide freely in these components.
Inspect the thrust bearings and spring plate (Fig.
34). Replace the plate if worn or scored. Replace the
bearings if rough, noisy, brinneled, or worn.
Inspect the planetery gear assembly and the sun
gear and bushings (Fig. 34). If either the sun gear or
the bushings are damaged, replace the gear and
bushings as an assembly. The gear and bushings are
not serviced separately.
The planetary carrier and pinions must be in good
condition. Also be sure the pinion pins are secure
and in good condition. Replace the carrier if worn or
damaged.
Inspect the overrunning clutch and race. The race
surface should be smooth and free of scores. Replace
the overrunning clutch assembly or the race if either
assembly is worn or damaged in any way.
Inspect the output shaft and governor components
(Fig. 36). Replace the shaft pilot bushing and inner
bushing if damaged. Replace either shaft bearing if
rough or noisy. Replace the bearing snap rings if dis­
torted or cracked.