3-28
PC290-ENG
23. MAINTENANCE SCHEDULE CHART
SERVICE ITEM PAGE
EVERY 1000 HOURS SERVICE
Change oil in swing machinery case 3-65
Check oil level in damper case, add oil 3-66
Check all tightening parts of turbocharger 3-66
Check play of turbocharger rotor 3-66
Check and adjust valve clearance (1
st
1000 hour only) 3-66
Check fan belt tensioner bearing, belt and fan hub 3-67
Check fan belt tension 3-67
EVERY 2000 HOURS SERVICE
Change oil in final drive case 3-68
Clean hydraulic tank strainer 3-69
Clean, check turbocharger 3-70
Check alternator, starting motor 3-70
Check vibration damper 3-70
Change antifreeze 3-70
Check and adjust valve clearance 3-70
EVERY 4000 HOURS SERVICE
Check water pump 3-71
EVERY 5000 HOURS SERVICE
Change oil in hydraulic tank 3-71
23.2 MAINTENANCE WHEN USING
HYDRAULIC BREAKER
For machines equipped with a hydraulic breaker, the hydraulic oil
deteriorates faster than for normal bucket digging operations, so set the
maintenance intervals as follows.
• Replacing hydraulic filter element
On new machines, replace the element after the first 100 to 150 hours,
then carry out further replacement of the element according to the ta-
ble on the right.
• Changing oil in hydraulic tank
Change the oil according to the table on the right.