Replace Hydraulic Oil Return Filter (After First 250 Hours); Change Pilot Filter (After First 250 Hours); Inspect Pins And Bushings Of Front End Attachments For Signs Of Wear; Check Fluid Levels In Batteries - Doosan DX140R Operation & Maintenance Manual

Replace Hydraulic Oil Return Filter (After
First 250 Hours)
NOTE: Replace hydraulic oil return filter after first 250 hours
of operation or rebuild, then every 1,000 hours
thereafter (See page 4-48).

Change Pilot Filter (After First 250 Hours)

NOTE: Change pilot filter after first 250 hours and every
1,000 hours thereafter (See page 4-49).
Inspect Pins and Bushings of Front End
Attachments for Signs of Wear

Check Fluid Levels in Batteries

See "Inspection of Battery Electrolyte Level" on page 4-69 for
further information.
Inspect for Any Loose or Missing Nuts and
Bolts
Inspect Fuel System Hose Clamps
Inspection, Maintenance and Adjustment
4-36
DX140R/DX140LCR