TM 5-3805-281-24-2
UNIT PREVENTIVE MAINTENANCE CHECKS AND SERVICES
FOR HYDRAULIC EXCAVATOR 330LCR
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:
(5) Turn radiator petcock (A) counterclockwise to
open valve. Allow coolant to drain into a
container. Dispose of waste properly.
(6) Turn engine block drain cock (A) counter-
clockwise to drain engine block. Drain coolant
into a container. Dispose of waste properly.
40
Annually
Perform Cooling System Fill and Deaeration Procedure
COOLING SYSTEM SPECIFICATION
Cooling Capacity
Approx. 22 L (6 gal)
CAUTION: Use only permanent-type low
silicate ethylene glycol base antifreeze in
coolant solution. Other types of antifreeze
may cause damage to cylinder seals.
FREEZING TEMPERATURES: Fill with
permanent-type low silicate ethylene glycol base
antifreeze (without stop-leak additive) and clean,
soft water.
FILL
Fill radiator to the bottom of the radiator fill neck.
Fill the recovery tank to FULL mark.
DEAERATION
The cooling system requires several warm-up and
cool down cycles to deaerate. It will NOT deaerate
during normal operation. Only during warm-up and
cool down cycles will the system deaerate.
(1) Start engine. Run engine until coolant reaches a
warm temperature.
A-35
