26
PLANET CARRIER SERVICE
OUTPUT PLANET CARRIER
1. The preferred method of removing the planet pin (Item
73), is to first remove the roll pin (Item 79). This can
usually be done by using a punch or small pry bar to
drive or push the roll pin out of the planet carrier (Item
72). Access to the roll pin is gained through a drilled
hole in the end of the planet pin. If this method is not
successful, the roll pin must be sheared by driving or
pressing the planet pin out of the carrier. A piece of
pipe or tubing long enough to hold the planet pin may
be used to support the carrier while each pin is re-
moved. Adequately support the assembly and drive
or press out one planet pin, shearing the roll pin.
2. Slide the planet gear out of the carrier and remove the
bearing cones. Clean and inspect the bearing cups
in each end of the gear. If they are determined to be
in serviceable condition, no further disassembly is re-
quired.
3. If the bearings need to be replaced, remove the bear-
ing cups, spacer and internal retaining ring from the
bore of the planet gear.
4. Repeat steps 1, 2 and 3 for each planet gear.
Thoroughly clean all parts and inspect for damage and
wear. The bearings should be examined for any signs of
spalling, corrosion, discoloration, material displacement or
abnormal wear. The bearing cages should be inspected
for wear or deformation. If any of these conditions are
found, the bearing should be replaced. Gears should be
inspected for abnormal wear or pitting and replaced as
necessary. Inspect all machined surfaces and bearing
bores for signs of damage or excessive wear.
NOTE:
Steps 5 through 8 are necessary only if the planet
gear bearings are being replaced.
5. Install a retaining ring (Item 78) in the bore of a planet
gear. Be sure it is completely seated in the groove.
6. Install a bearing spacer (Item 77) into the bore of the
planet gear. Be sure the step on the spacer is toward
the retaining ring.
7. Install a bearing cup (Item 75) into each end of the
gear. The cups should firmly contact the spacer.
8. Repeat steps 5, 6 and 7 for each planet gear.
9. Install a bearing cone (Item 74) into each end of a
planet gear and slide the gear and bearings into the
planet carrier, aligning the bearing bores with the plan-
et pin bore.
10. Install a planet pin through the planet carrier and bear-
ings, aligning the hole in the pin with the roll pin hole in
the carrier. Drive a new roll pin (Item 79) into place in
the carrier.
NOTE:
Always use
NEW
roll pins.
Summary of Contents for CH330
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