Practice Safe Maintenance - Hitachi EH 5000AC-3 Technical Manual

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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 dump body to the frame rail.
3. Place shift lever in the NEUTRAL position.
4. Apply the parking brake to ensure that the parking brake
is holding the machine.
5. Run the engine at slow idle speed without load for 5
minutes.
6. Make sure the hoist lever is in the FLOAT position.
7. Check that all switches and controls are in the OFF
position.
8. Turn the key switch to the OFF position to stop engine.
9. Ensure hydraulic system pressure relieves to tank.
10. Remove the key from the key switch.
11. Attach a "Do Not Operate" tag to the steering wheel.
12. Allow the engine to cool.
If a maintenance procedure must be performed with the
engine running, do not leave the machine unattended.
If the dump body must be raised, securely support the
dump body by using the prop pins.
Inspect certain parts periodically and repair or replace as
necessary. Refer to the section discussing that part in the
"MAINTENANCE" chapter in operator's 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.
Pull the battery disconnect switch lever down to the OFF
position before making adjustments to electrical systems
or before performing welding on the machine.
SAFETY
SA-21
SA-028
SA-527

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