hitachi — REMOVE AND INSTALL SWING BEARING

UNDERCARRIAGE / Swing Bearing REMOVE AND INSTALL SWING BEARING Before removing and installing 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 the matching marks on inner race (1) of swing bearing and track frame (2). 2. Remove bolts (3) (36 used) from the inner race of swing bearing. Matching Mark 1 2 W105-03-01-001 : 41 mm W158-03-01-001 CAUTION: Swing bearing (4) weight: 510 kg (1125 Ib) 3. Attach lifting tools (ST 0050) onto swing bearing (4).

Hoist and remove swing bearing (4) from track frame (2). W3-1-1 3 ST 005 0 2 4 W110-03-01-