4
TM 5-3805-291-23-1
THERMOSTAT REPLACEMENT
THIS WORK PACKAGE COVERS
Removal, Cleaning and Inspection, Installation
INITIAL SETUP
Personnel Required
Maintenance Level
MOS 62B, Construction Equipment Repairer
Unit
Equipment Conditions
Test Equipment
Machine parked on level ground (TM 5-3805-291-
Test stand, automotive (Item 87, WP 0232 00)
10)
Tools and Special Tools
Work tool lowered to ground (TM 5-3805-291-10)
Tool kit, general mechanic's, automotive (Item 90,
Parking brake engaged (TM 5-3805-291-10)
Wheels chocked
Shop equipment, automotive maintenance and
repair: organizational maintenance, common no.
Battery disconnect switch in OFF position (TM 5-
1 (Item 70, WP 0232 00)
3805-291-10)
Materials/Parts
Hood opened (TM 5-3805-291-10)
Antifreeze (Item 1, WP 0233 00)
Steering frame lock connected (TM 5-3805-291-
10)
Cap set, protective (Item 6, WP 0233 00)
Cooling system pressure cap removed (TM 5-3805-
Cleaning compound, solvent, type III (Item 7, WP
291-10)
Rag, wiping (Item 35, WP 0233 00)
Drawings Required
TM 5-3805-291-23P, Figure 43
Tag, marker (Item 43, WP 0233 00)
O-ring (2)
Estimated Time to Complete Task
1.5 hr
Seal
WARN I N G
DO NOT service cooling system unless engine has be n allowed to cool down. This is a pressurized
cooling system and escaping steam or hot coolant may result in serious burns.
DO NOT remove cooling system radiator cap when en ine is hot. Allow engine to cool down. Loosen
g
cap to first stop and let any pressure out of cooling system, then remove cap. Failure to follow this
warning may result in serious burns to personnel.
Wear effective eye, hand, and skin protection whenhandling coolants. Failure to do so may result in
injury to personnel.
Engine coolant used in the performance of maintenance can be very slippery. Immediately wipe up any
spills. Failure to follow this warning may result in injury to personnel.
C AU T I O N
Wipe area clean around all connections to be opened during removal. Cap lines and hoses and plug open-
ings after removing lines. Contamination of system could result in premature failure.