BRADEN CH400B Installation Maintenance And Service Manual page 24

Thoroughly clean all parts and inspect for damage. In-
spect all machined surfaces for irregular wear.
the ring gear and planet gear teeth for nicks, pitting, and
any signs of wear. Inspect the gear cover (5) for signs of
abnormal wear. Inspect the thrust washers (1 and 4) for
wear or damage and replace as required.
ASSEMBLY
Before beginning assembly of the hoist drive, assemble
the brake cylinder assembly, overrunning clutch assem-
bly, primary planet carrier assembly, intermediate planet
carrier assembly, and final planet carrier assembly follow-
ing procedures in this manual.
1. Clean all metal parts in solvent and allow to dry.
2. Place bearing carrier (61) on clean work bench. Ap-
ply Loctite Aviation Gasket Sealant or equivalent non-
hardening sealant to outside diameter of seal and in-
stall seal (33) in bearing carrier (61).
3. Install bearing (35) in bearing carrier (34). Install re-
taining ring (60) above bearing (35).
4. If the bearing carrier (61) was removed from the ring
gear (65), install O-ring (39) in the bearing carrier
groove and lubricate lightly with grease then set the
bearing carrier onto the ring gear. Using marine grade
antiseize compound, install lockwashers (23) and cap-
screws (24) that fasten the bearing carrier (34) to the
ring gear (65). Torque capscrews to 200 ± 15 lb •ft
(271 ± 20 N•m) alternating capscrews across the ring
gear.
5. Install the overrunning clutch assembly into the brake
cylinder assembly. Ensure the brake discs are aligned
before trying to seat the overrunning clutch inner race
onto the bearing in the brake cylinder. The brake cyl-
inder may need to be pressurized with a hand pump to
align the brake discs.
6. Install O-ring (38) on motor adapter (40) and lightly
grease. Install motor adapter onto the brake cylinder.
For the SAE C motor flange, install and torque the four
capscrews (79) which secure the motor adapter to the
brake cylinder.
7. Set the brake cylinder assembly on the workbench
Inspect with the motor end down. Place spacer blocks under
the brake cylinder so the overrunning clutch inner race
does not contact the work bench (needed for SAE C
flange motor if the motor adapter is not installed). Ap-
ply a light coat of grease to the bearing and seal sur-
faces on the brake cylinder and the inner race of the
bearing and seal in the bearing carrier.
8. Use 5/16 eyebolts 180 degrees apart in the ring gear
cover holes to lower the bearing carrier and ring gear
assembly onto brake cylinder taking care not to dam-
age the bearing carrier seal (33). Install retaining ring
(36) in brake cylinder.
9. Lower final planet carrier assembly (400) into ring gear
ensuring teeth on planet carrier engage with teeth on
ring gear. Install final sun gear (64) in between final
planet gears.
10. Install intermediate planet carrier assembly (300) in
ring gear engaging intermediate planet carrier teeth
with final sun gear teeth (64). Install intermediate sun
gear (3) between intermediate planet gears.
11. Install primary planet carrier assembly (200) in ring
gear and ensure primary carrier gear teeth engage
with intermediate sun gear (3) teeth.
12. Install gear shaft (63) through the sun gears and into
the overrunning clutch inner race splines. Install pri-
mary sun gear (2) between primary gear teeth and
gear shaft (63) splines.
13. Apply multipurpose grease to the thrust button (1) and
the thrust washer (4) to hold in place in the cover (5).
Ensure grease will hold thrust button and thrust wash-
er in place and lower the cover (5) onto the ring gear.
14. Align cover (5) holes with ring gear threaded holes.
Apply Loctite 242 to capscrews (12) and install with
lockwashers (14) to secure the cover (5) to the ring
gear (65). Torque to 25 ± 5 lb•ft (34 ± 7 N•m).
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