UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES
FOR HYDRAULIC EXCAVATOR 330LCR
ITEM TO BE INSPECTED
EQUIPMENT IS NOT
PROCEDURE: DO THE PMCS AND HAVE ITEM
REPAIRED, FILLED, OR ADJUSTED AS NEEDED
Perform Engine Speed Learning Procedure
(1) Stop engine.
(2) Push engine learning switch (C) up to top
position. Make sure that it is in the top
(3) Turn key switch ON. Wait 5 seconds.
(4) Turn key switch OFF. Wait 5 seconds.
(5) Push engine learning switch to middle position.
(6) Check engine speeds.
1000 ± 100 rpm
1200 ± 100 rpm
1900 ± 100 rpm
E (Economy) Mode
2050 ± 75 rpm
Fast Idle in Standard Mode
NOTE: If engine RPM is not to specifications,
notify direct support maintenance.
Drain Cooling System
Drain and flush cooling system using commercial
products. Replace thermostats and radiator cap, and
refill with new coolant.