DOC-20230111-WA0038.

REMOVE AND INSTALL SWING BEARING
UNDERCARRIAGE / Swing Bearing
Before removing the swing bearing, the upperstructure
must be removed first. For removal and installation of
the upperstructure, refer to “Remove and Install Main
Frame” section. In this section, the procedure starts on
the premise that the upperstructure has already been
removed.
Removal
1. Put matching marks on swing bearing (1) and
track frame (2).
Matching Mark
1 2
W105-03-01-001
2. Remove mounting bolts (3) (24 used) of the swing
bearing inner race.
: 24 mm
3
CAUTION: Swing bearing weight:93 kg
(205 lb)
3. Attach lifting tools (ST 0050) to swing bearing (4),
hoist swing bearing (4) and remove it.
W105-03-01-002
ST 0050
4
W105-03-01-003
W3-1-1