SUB-SECTION 6D
SWING TRANSMISSION
A. PIace bronze washer (11) in the center of panel
If the bearing carrier assembly has been disassembled,
carrier (9).
assemble it as described below, and then install it as just
described.
B. Install planet gears (3) in planet carrier (9). lnsert
bronze shafts (8) through the planet carrier and
A. Install bearing cups (31 and 44) in bearing carrier
planet gears so that the hole in the shaft will be
(28).
aligned with the hole in the planet carrier.
B. Press small bearing cone (33) on output shaft (36). Be
C. Install roll pins (2).
sure the bearing cone is seated tightly against the
shoulder on the output shaft.
7. Install brake assembly (17) in the top of housing (53).
Be sure to position the brake assembly in the same position
C. Insert output shaft (36) into bearing carrier (28) from
it was before it was removed. Secure the brake assembly
the inside of the bearing carrier.
with snap ring (6).
D. Press large bearing cone (43) onto output shaft (36).
If the brake assembly has been disassembled, assemble it as
described below, and then install it as just described.
E. Install seal journal (42) and locknut (41) on output
shaft (36). lighten the locknut to 15 inch-pounds
A. Install back-up plate (16) in brake cylinder (17).
(0.17 m-kg), and then install roll pins (40) to secure
locknut (41) in place.
B. Alternately install a brake disc (14) and then a fric-
tion disc (15) in brake cylinder (17).
F. Install oil seal (32) in the bore of seal carrier (30).
Install O-ring (29) in the groove of the seal carrier.
NOTE
Lubricate the oil seal and O-ring with a small amount
of clean grease, and install the seal carrier on bearing
Place input shaft (12) in the center of brake cylinder
carrier (28). Install capscrews (45) and lockwashers
(17) to align the brake discs.
(46).
C. Install O-rings (19 and 21) and back-up rings (20 and
G. Install O-ring (25) in the pilot portion of bearing car-
22) in the proper groove in brake cylinder (17). Lub-
rier (28). Lubricate the O-ring with a small amount of
ricate the O-rings with clean hydraulic oil.
clean grease.
D. Lubricate piston (23) with clean hydraulic oil, and
4. Invert the assembly and check the final planetary reduc
install it in brake cylinder (17).
tion for freedom of movement by turning the output shaft.
If the final planetary reduction does not turn freely, correct
NOTE
the problem before continuing with the assembly proce-
dure.
It may be necessary to tap the piston lightly with a
plastic hammer to seat the piston in the brake cylin-
5. Install snap ring (13) on sun gear (24). and then install
der.
the sun gear in final planet assembly (26).
E. Install sixteen brake springs (18) in piston (23).
6. Place primary planet assembly (9) in housing (53).
Rotate the planet assembly until planet gears (3) mesh with
F. Install spring plate (10) over brake springs (18). Place
the ring gear in the housing, and planet carrier (9) meshes
the assembly in a press and apply pressure to spring
with sun gear (24).
plate (10) until snap ring (7) can be installed.
Check the assembly for freedom of movement by turning
G. Lubricate O-ring (5) with a small amount of clean
the output shaft. If the assembly does not turn freely, cor-
grease, and install it in the groove on the outer diam-
rect the problem before continuing the assembly procedure.
eter of brake cylinder (17). Install spacer ring (4) over
the external splines of brake cylinder (17).
If the primary planet assembly has been disassembled,
assemble it as described below, and then install it as just
8. Install the swing pinion on the output shaft, and secure
described.
6D-5
