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SECTION 3 - PERIODIC MAINTENANCE
BEFORE
MAINTENANCE TASK USE
ii. check 0il level X
2. Change Enqine Oil
3. Service Air Cleaner _ _
14, Clean FuelIIIscreen .................
5. Decarbonize Muffler
i71DeC'arb0nize Engine*
8. Reface Valves*
:9. Check Valve
Clearance*
10. Prepare for
Storage
HOU_Y OPERATING INTERVAL
AFTER FIRST EVERY EVERY EVERY
20 HOURS 50 _ i00 _ 200 .....OTHER ......
X X
X
I ....
X
x
X
x
X
X
x
Tasks indicated by a single asterisk (_) should be accomplished by
a qualified engine service technician.
** Prepare unit for storage if it is to remain idle longer than 30
days.
Table 3-1. Periodic Maintenance Chart
3.1- CHECK ENGINE OIL LEVEL
Check engine crankcase oil level prior to each use, or at least every
5 hours of operation. See Paragraph 2.1.
3.2- CHANGE ENGINE OIL (Figure 3-1)
Drain crankcase completely and refill with clean, fresh oil after the
first 20 hours of operation, every i00 operating hours thereafter, as
follows:-
a. Operate engine until thoroughly warmed up, then shut down
______ lllJ
il!/
OIL FILL--J)" _ 11II
--OIL DRAIN
PLUG
Figure 3-1. Engine OIL FILL and OIL DRAIN PLUGS
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