Hitachi ZAXIS 120-6 class Operator's Manual page 344

Lubricating with the Electric Grease Gun
Installing cartridge grease
IMPORTANT: Take care not to allow sand and/or dust to
mix in grease when installing cartridge grease (5).
1. Turn to remove oil barrel (6) from motor assembly (2).
2. Fully pull out chain (7) from oil barrel (6). Attach chain (7)
to a notch on the bottom of oil barrel (6).
3. After removing cap (4) from cartridge grease (5), install
cartridge grease (5) to the screw threads on motor
assembly (2).
IMPORTANT: Be alert that if cartridge grease (5) is
diagonally or forcibly screwed in, damage to the screw
threads may result so that the cartridge grease may
not be installed to motor assembly (2).
4. Screw oil barrel (6) in the original position on motor
assembly (2). Detach chain (7) from the notch.
MAINTENANCE
7-50
6
7
6
7
4
2
MJAG-13-011
M16J-07-042
5
M16J-07-043