P/N 57017, Rev. 3 Page 49
5 MAINTENANCE
5.1 Recommended lubricants
Rotational drive, axial feed units
Union UNAX AW32
Anti-wear hydraulic oil
5.2 Boring bar/lead screw assembly
Clean the lead screw and boring bar frequently during operation. Keep chips away
from the lead screw threads. Lubricate the lead screw periodically with light oil to
ensure smooth travel of the tool carrier assembly. Before storage, lightly oil the bar to
prevent rusting. Do not grease the leadscrew.
5.3 Axial feed unit
Under normal conditions, the mechanical axial feed unit is maintenance free.
5.4 Rotational drive unit
The RDU has sealed lubrication. Under normal use, it is maintenance free.
5.5 Bearing support assembly
Before using the boring bar and periodically during long machining operations,
grease the bearings. Add grease slowly while the bar is rotating until a slight bead of
grease forms at the seals.
Periodically apply anti-seize to jacking bolts of the ID-mounting bearing.
5.6 Tool head assembly
5.6.1 Boring head assembly
Lightly oil all parts to prevent rusting.