TM 5-3805-261-10
OPERATION UNDER UNUSUAL CONDITIONS - CONTINUED
0007 00
OPERATE IN EXTREME COLD - CONTINUED
7.
Machine Operation.
a.
Test brakes and vehicle controls carefully.
b.
Move all implement controls slowly to warm the hydraulic oil. Cycle each control several times. Normal warm-up
period in extreme cold is 30 minutes.
c.
Operate under a light load for the first five minutes of operation.
d.
Start driving very slowly for about 100 yds (91.4 m). If a problem is noted, notify Unit Maintenance as required.
8.
Parking Machine.
a.
If machine will be parked for a short period, park in a sheltered area out of wind. If shelter is not available, park
machine so that radiator does not face into the wind.
b.
If machine will be parked for a long shutdown period, try to park on high ground and use planks or brush to make
a raised and relatively dry surface. Keep tires out of snow, water, ice, and mud, if possible.
c.
Clean snow, ice, and mud from machine as soon as possible after shutdown.
d.
If machine will be parked for a long period of time, have Unit Maintenance prepare machine for storage.
e.
Ensure tires are properly inflated.
OPERATE IN EXTREME HEAT
0007 00
General. During very hot weather, altering operating procedures may be necessary to prevent machine from overheat-
1.
ing. Avoid continuous high engine RPM.
a.
You must be alert for the possibility of overheating.
b.
Keep a close eye on EMS engine coolant and hydraulic oil temperature indicators.
c.
If coolant or hydraulic temperature indicators come on, you may operate at three-fourths workload until indicators
go out.
d.
It is important to maintain engine RPM to help cooling.
e.
If indicators stay on after more than 10 minutes of reduced workload, stop the machine and notify Unit Mainte-
nance.
2.
Cooling System.
WARNING
DO NOT service cooling system unless engine has been allowed to cool down. This is a pressurized
cooling system and escaping steam or hot coolant will cause serious burns.
DO NOT remove cooling system radiator cap when engine is hot. Allow engine to cool down. 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.
a.
Check coolant level at frequent intervals and keep radiator cap tight.
b.
Be sure the radiator is free of bugs, dust, and other foreign matter.
c.
Check fan belt tension frequently. Report any damaged or loose belts to Unit Maintenance.
0007 00-3
