Intermediate Planet Carrier Service - BRADEN CH400B Installation Maintenance And Service Manual

INTERMEDIATE PLANET CARRIER SERVICE

DISASSEMBLY
70
16
17
21
13
ITEM NO DESCRIPTION
13 SNAP RING
15 PLANET GEAR
16 BEARING ROLLER
17 THRUST SPACER
20 PLANET CARRIER
21 RETAINING RING
70 THRUST SPACER
1. Remove the retaining ring (13) from one of the planet
carrier posts.
2. Use a gear puller to pull the planet gear (15) off of the
planet carrier post. If a gear puller is not available, two
pry bars positioned 180 degrees apart can be used to
pry the gear off of the planet carrier post, but care must
be taken to ensure the pry bar does not contact and
damage the planet carrier post machined surface.
3. The loose rollers will scatter if dropped so take pre-
cautions to ensure they are captured during this step
of disassembly. Remove the retaining ring (21) and
thrust washer (17) and push the roller bearing out of
the gear (15).
4. Repeat the above steps for the remaining two planet
gears.
5. Thoroughly clean all parts and inspect for damage and
wear. The bearing rollers and bearing race should ex-
hibit no irregularities. If the rollers or race show any
signs of spalling, corrosion, discoloration, material dis-
placement or abnormal wear, the bearing rollers should
be replaced. The thrust washer contact areas should
be free from any surface irregularities that may cause
abrasion or friction. The gears and planet pins should
be inspected for abnormal wear or pitting.
20
21
17
15
QTY
3
3
3
6
1
6
1
ASSEMBLY
The loose roller bearings can be difficult to keep in place
during assembly. This procedure attempts to simplify this.
1. Clean and inspect parts as described in step 4 of the
disassembly procedure.
2. Place planet gear (15) on clean workbench. Install a
thrust washer (17) and retaining ring (21) in one side
of the planet gear. Set the bearing inner race near the
planet gear and coat bearing rollers (9) with enough
NLGI #2 grease to hold the bearing rollers in place on
the inner race. A rubber band can be used to hold the
bearing rollers on the inner race if needed; slide it off
once the rollers enter the gear. Slide the bearing into
the planet gear.
3. Install the remaining thrust washer (17) and then install
remaining retaining ring (21) in gear.
4. Ensure the thrust spacer (70) is in place in the plan-
et carrier before installing gears on the planet carrier
posts.
5. Apply a light coat of grease the planet carrier bearing
post and then slide the planet gear onto the planet car-
rier post.
6. Install the snap-ring (13) to secure the planet gear to
the planet carrier.
7. Repeat procedure for remaining two planet gears.
29