Hitachi ZW 120-6, Operator'S Manual

Page: 34 / 364

SAFETY
S-24
Practice Safe Maintenance
To avoid accidents:

Understand service procedures before starting work.

Keep the work area clean and dry.

Do not spray water or steam inside cab.

Never lubricate or service the machine while it is moving.

Keep hands, feet and clothing away from power-driven
parts.
Before servicing the machine:
1. Park the machine on a level surface.
2. Lower the bucket to the ground.
3. Run the engine at low idle speed without load for 5
minutes.
4. Turn the key switch to OFF to stop the engine.
5. Relieve the pressure in the hydraulic system by moving
the control levers several times.
6. Remove the key from the key switch.
7. Attach a “Do Not Operate” tag on the control lever.
8. Turn the control lever lock switch to the lock ( ) position.
9. Lock bar connects the front and rear frames.
10. Allow the engine to cool.

If a maintenance procedure must be performed with the
engine running, do not leave machine unattended.

Never work under a machine raised by the lift arm.

Inspect certain parts periodically and repair or replace as
necessary. Refer to the section discussing that part in the
“MAINTENANCE” chapter of this manual.

Keep all parts in good condition and properly installed.

Fix damage immediately. Replace worn or broken parts.
Remove any buildup of grease, oil, or debris.

When cleaning parts, always use nonflammable
detergent oil. Never use highly flammable oil such as fuel
oil and gasoline to clean parts or surfaces.

Disconnect battery ground cable (-) before making
adjustments to electrical systems or before performing
welding on the machine.
SA-028
SA-527
SA-312
SA-134