Swing Internal Gear - Hitachi EX27U Operator's Manual

Swing Internal Gear --- every 500 hours
CAUTION: Adding or changing swing internal
gear grease and rotating the upperstructure must
be done by one person. Before you start, clear
the area off all persons.
Each time you leave the cab
• Lower the bucket to the ground.
• Stop the engine.
• Pull the pilot control shut-off lever to the LOCK
position.
1. Park the machine on a level surface.
2. Lower the bucket and blade to the ground.
3. Run the engine at slow idle speed without load for
three minutes.
4. Turn the key switch OFF. Remove the key from the
key switch.
5. Pull the pilot control shut-off lever to the LOCK posi-
tion.
6. Remove the cover from the bottom of the un-
der-carriage.
Check if grease inside is cloudy, due to contamina-
tion by water or dirt.
7. Apply grease to grease fitting (1) shown in right draw-
ing.
8. In order to apply grease evenly to the swing gear,
raise the bucket approximately 200 mm (8 in) off the
ground, swing the upperstructure four 90° intervals
(one full turn) and apply grease at each interval. Total
grease amount with 4 times is 0.2 liter.
EX27u 2.8 to 3.1L (0.74 to 0.82 US gal)
EX35u 3.0 to 3.3L (0.79 to 0.87 US gal)
EX50u 3.2 to 3.5L (0.85 to 0.92 US gal)
MAINTENANCE
Grease Capacity
1
7-15
EX27u, EX35u
1
EX50u
M589-01-001
M573-07-003