TM 5-3805-280-24-2
UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES
FOR HYDRAULIC EXCAVATOR 230LCR/230LCRD
ITEM
INTERVAL
ITEM TO BE INSPECTED
EQUIPMENT IS NOT
NO.
PROCEDURE: DO THE PMCS AND HAVE ITEM
READY/AVAILABLE
REPAIRED, FILLED, OR ADJUSTED AS NEEDED
IF:
42
Annually
Drain Cooling System
Replace Cooling System Coolant
Drain and flush cooling systems of excavator
engine and compressor engine (Model 230LCRD)
using commercial products. Replace thermostats
and radiator caps, and refill with new coolant.
(1) Check coolant hoses (A) for cracks and leaks.
Any Class III leak evident
Replace if necessary.
(2) Tighten clamps.
(3) Check radiators and oil cooler for dirt, grease,
Any Class III leak evident
leaks, and loose or broken mountings. Clean
radiators and oil cooler fins.
WARNING: Prevent possible injury from hot
spraying water. DO NOT remove radiator
cap unless engine is cool. Then turn cap
slowly to the stop.
(4) Release air to relieve pressure. Remove filler
cap.
A-27