27
11. The roll pin should be slightly recessed in the carrier
when properly installed. Use a punch to stake the car-
rier next to the pin hole so the pin will not back out
when the unit is in operation.
12. Repeat steps 9, 10 and 11 for each planet gear.
PRIMARY AND SECONDARY
PLANET CARRIERS
1. The preferred method of removing the planet pin, is to
first remove the roll pin. 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. 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 removed. Adequately support the as-
sembly and drive or press out one planet pin, shearing
the roll pin.
2. Slide the planet gear out of the carrier and remove the
thrust washers and loose roller bearings.
3. Repeat steps 1 and 2 for each planet gear.
4. Remove the retaining ring holding the sun gear in the
planet carrier and remove the sun gear.
Thoroughly clean all parts and inspect for damage and
wear. The bearing rollers should be examined for any
signs of spalling, corrosion, discoloration, material dis-
placement or abnormal wear. If any of these conditions
are found, the rollers 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.
5. Engage the sun gear with the splines on the planet
carrier and install the retaining onto the sun gear.
6. Liberally coat the bore of a planet gear with a good
grade of oil soluble grease.
7. Set a thrust washer on a clean flat work surface. Set
the planet gear on the thrust washer with the bore in
the gear centered over the washer. Install a row of
loose rollers around the bore of the gear, using addi-
tional grease as required to hold them in place.
8. Set another thrust washer on top of the rollers and slide
the gear and bearing assembly into place in the planet
carrier. Align the gear with one of the planet pin bores
in the carrier and install a planet pin. Align the hole
in the pin with the hole in the carrier and install a new
roll pin.
NOTE:
Always use
NEW
pins.
9. The roll pin should be slightly recessed in the carrier
when properly installed. Use a punch to stake the car-
rier next to the pin hole so the pin will not back out
when the unit is in operation.
10. Repeat steps 5 through 9 for the remaining planet
gears.
Summary of Contents for CH330
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