DOC-20230111-WA0038.

UNDERCARRIAGE / Travel Device
Assemble Travel Motor
• Be sure to read “Precautions for Disassembly and
Assembly” thoroughly on page W1-1-1 before
starting the assembly work.
CAUTION: Housing (30) weight: 20 kg
(44 lb)
IMPORTANT: Apply the inner surface of oil seal
(26) with grease and the outer
surface with THREEBOND #1104 or
#1215.
1. Place housing (30) horizontally. Install oil seal (26)
into the housing with the lip facing bearing (24)
using special tool (ST 7278).
2. Install servo pistons (22) (2 used) into housing
(30).
IMPORTANT: When installing retaining rings (25),
(23) on shaft (18), take care not to
damage shaft (18).
3. Install retaining ring (25) to shaft (18).
IMPORTANT: When installing bearing (24), be sure
with the clamp facing spline teeth on
shaft (18).
4. Press bearing (24) onto shaft (18). Then, install
retaining ring (23) on the shaft.
5. Press the shaft (18) assembly into housing (30).
7. Place housing (30) horizontally, with the brake
releasing circuit downward. Align the notch of
swash plate (17) with the hole of pins (19) (2
used), install swash plate (17) onto plate (20).
8. Install disc springs (13) and spherical bushing
(14) onto rotor(12).
9. Install plungers (16) (9 used) to retainer (15).
Install the plunger assembly to rotor (12).
10. Aligning the spline, install the rotor (12) assembly
on shaft (18).
11. Place housing (30) vertically. Install plates (10) (4
used) into housing (30) and friction plates (11) (3
used) into rotor (12) by matching their grooves
and installing them one by one alternatively.
IMPORTANT: Apply the grease to O-rings (5) and
(6).
12. Install O-rings (5 and 6) on piston (4).
IMPORTANT: Install disc spring (3) so that the
inner surface makes contact with
piston (4). Apply the grease to O-
rings (27) (2 used) and (28).
13. Install piston (4), disc spring (3), and O-rings
(27) (2 used) and (28) into housing (30).
IMPORTANT: When assembling, the slit on plate
(20) shall be aligned with bearing
(24).
6. Install pins (19) (2 used) onto plate (20). Install the
plate in housing (30) so that the hole of knock pin
(21) aligns with knock pin (21).
W3-2-17