Swing Internal Gear - Hitachi Zaxis 850LC-3 Operator's Manual

Swing Internal Gear --- every 500 hours
3
WARNING: Adding or changing swing internal gear
grease and rotating the upperstructure must be done
by one person. Before you start, clear the area of 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 po-
sition.
• Use handrails.
1. Park the machine on a level surface.
2. Lower the bucket to the ground.
3. Turn the auto-idle switch off.
IMPORTANT: The turbocharger may be damaged if the en-
gine is not properly shut down.
4. Run the engine at slow idle speed without load for five
minutes.
5. Turn the key switch OFF. Remove the key from the key
switch.
6. Pull the pilot control shut-off lever to the LOCK position.
7. Remove the cover (1) on the upper structure .
8. Grease must be to the top of all internal gear teeth of the
swing bearing and be free of contamination by dirt and
water.
Add approximately 0.5 kg (1.1 lb) of grease, if required. If
the grease is contaminated, remove grease and replace
with clean grease.
9. Install the cover (1).
10. If grease shows any sign of water or mud, replace all the
grease on the internal gear.
Remove cover (2) from the bottom of the swing gear
housing, located near the center joint.
Grease capacity: 16 to 18 liter (4.2 to 4.8 US gal)
MAINTENANCE
2
7-19
1
M1J1-07-024
M116-07-042