TM 9-2320-360-10
2-12. DRIVING HET TRACTOR (CONT)
CAUTION
If OIL PRESS gage does not show engine oil pressure with 10-15
seconds after starting engine, shut down engine immediately.
Notify unit maintenance. Lack of lubrication may damage engine.
NOTE
At idle, oil pressure can go as low as 5 psi (34 kPa).
(5) Check that OIL PRESS gage (8) reads 50-70 psi (345-483 kPa) at 1800-2100 rpm.
(6) Check that AIR PRESS gage (9) reads 60-120 psi (414-827 kPa). LOW AIR indicator (6) lights
(red) and warning alarm (7) will sound until both needles reach 60-75 psi (414-517 kPa).
NOTE
Approximate cruising range of HET Tractor is 325 mi (523 km) with
full fuel tanks.
(7)
Check that FUEL gage (10) shows fuel.
(8)
Check that WATER TEMP gage (11) does not read over 210F (100C).
(9) Check that BATTERY gage (24-volt system) (12) reads between 26 and 30 volts.
(10) Check that BATTERY gage (12-volt system) (13) reads between 13 and 15 vols.
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