OPERATION UNDER UNUSUAL CONDITIONS - CONTINUED
CAU T I ON
During very hot weather, operating procedures may require altering to prevent machine overheating.
Avoid continuous high engine rpm.
N OT E
Refer to FM 90-3, Desert Operations.
Watch out for Machine Monitoring System (MMS) alert indicators and coolant, transmission, and hydraulic tem-
If MMS alert indicators signal an alert or if a temperature gage reads unusually high, stop and perform trouble-
c. If indicators stay on after more than 10 minutes of reduced workload, stop machine and notify Unit Maintenance.
WARN I N G
· DO NOT service cooling system unless engine has cooled. This is a pressurized cooling system and escap-
ing steam or hot coolant will cause serious burns.
· DO NOT remove cooling system radiator cap when engine is hot. Allow engine to cool down. Loosen cap
to first stop and let any pressure out of cooling system, then remove cap. Failure to follow this warning
may cause serious burns.
· Wear effective eye, glove, and skin protection when handling coolants. Failure to follow this warning
may cause injury to personnel.
Check coolant level in coolant overflow tank. If necessary, add coolant to correct level (WP 0012 00).
Be sure radiator is free of bugs, dust, and other foreign matter.
Check V-belt tension frequently. Report any damaged or loose belts to Unit Maintenance.
Use lubricants specified at the end of PMCS (WP 0012 00), with the temperature range that applies to the highest
expected ambient temperature.
Notify Unit Maintenance to shorten differential and final drive oil change interval.