Doosan DX700LC, Operation And Maintenance Manual

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OP001122 Operation
3-2
Lubrication and Filters
1. Change engine oil and replace oil filter after first 50 hours
of operation.
2. Change swing reduction device oil after first 250 hours of
operation.
3. Change hydraulic oil return filter after first 250 hours of
operation.
4. Replace travel and reduction gear oil after first 250 hours
of operation.
NOTE: For the replenishment of oil or grease, refer to
“Inspection, Maintenance and Adjustment” on
page 4-1 of this manual.
STARTING AND STOPPING THE
ENGINE
Inspection Before Starting Engine
Before starting engine, inspect the following items;
1. Electric system - Check for damaged electric cables, and
loose or missing connectors.
2. Fuel system - Drain water and sediment from fuel tank and
water separator.
3. Hydraulic system - Check for hydraulic oil leaks, damaged
tubing and hoses, and interference points of components.
4. Lubrication - Perform all daily and periodic maintenance
services. Perform services according to reading shown on
hour meter.
5. Safety - Perform a machine walk-around. Make sure that
no one is under the machine or performing any
maintenance on it, before starting engine.
6. After starting machine - Check that all operational controls
and components, are in proper operating condition, and
are functioning correctly. Stop operation and correct any
malfunction before continuing work.
WARNING
If a flammable materials such as leaves, paper, etc. are
allowed to accumulate on high temperature components,
such as the engine muffler and turbo, a fire may occur.
Fuel, lubricant and hydraulic oil leaks, may cause a fire. If
there is anything wrong, perform the appropriate corrective
action.