Hobart 9OC24S Operation Manual page 113

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OPERATION, MAINTENANCE , AND OVERHAUL MAN UAL, TM-240A
SELF-PROPELLED GENERATOR SET, SPEC. NO. 5381A
(b) Indicating lights
Check lamps (bulbs) in all of the indicating lights at each start up. Fault
indicating lights in the protective relay tray may be tested by pressing the
lens housing. Check fuses if lights fail to operate.
(c) Output cable plug connector
Check the output cable plug connector for damaged contactors each time
the connector is attached to an aircraft.
D. "B" Checks and Operations (200 Hours or 3 Months)
(1) Engine
(a) Change crankcase oil
See 2-2, Para. 2, D, (4) for details.
(b) Change oil filter element
Change oil filter element each time crankcase oil is changed. See
2-2, Para. 2, D, (5) for details.
(c) Check and record oil pressure
After each oil change,
check and record oil pressure at idle speed after
oil has warmed to approximately 140 deg F. Record oil pressure under
identical conditions at each oil change interval. A comparison of pres-
sure at idle speed with previous readings will give an indication of pro-
gressive wear of oil pump, bearings, shafts, etc. Investigate any ab-
normal change in pressure readings,
(d) Alternator and starter lubrication
Most alternators contain sealed bearings and require no periodic Iubrica-
tion. The starting motor is lubricated at assembly and should be re-lubri-
cated only when the starter is removed and disassembled. Check both of
these accessories to determine if they have lubrication fittings.
(e) Injectors and valves
At the first engine oil change, check, and adjust injectors and
va Ives if necessary. Thereafter check and adjust at 1200 hours.
(2) Electrical (12-V DC system)