Komatsu PC400LC-5 Operation & Maintenance Manual page 169

23. MAINTENANCE SCHEDULE CHART
SERVICE ITEM
EVERY 1000 HOURS SERVICE
PAGE
Change oil in swing machinary case 3-62
Check oil level in damper case, add oil 3-63
C.heck all tightening parts of turbocharger 3-63
Check play of turbocharger rotor 3-63
Replace corrosion resistor cartridge 3-64
EVERY 2000 HOURS SERVICE
Change oil in final drive case
Change oil in hydraulic tank, clean strainer
Clean engine breather
Clean, check turbocharger
Check alternator, starting motor
Check engine valve clearance, adjust
Check vibration damper
EVERY 4000 HOURS SERVICE
Check water pump
3-65
3-66
3-68
3-69
3-69
3-69
3-69
3-70
23.2 MAINTENANCE INTERVAL 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.
l Replacing hydraulic element
On new machines, replace the element after the first 100 to 150
hours, then carry out further replacement of the element accord-
ing to the table on the right.
l Changing oil in hydraulic tank
Change the oil according to the table on the right.
l Replacing additional filter element for breaker
Use a guideline of 250 hours for use of the breaker (operating
ratio for the breaker: 50 % or more), and replace the element
according to the table on the right.
200
5
z 150
5
2 ._
5 100
Fi
9
Q 50
a
Hydraulii tank
filter element
Additional
filter element
AD098430
3-25