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4. Attach a tag to the engine indicating the viscosity
and classification of the oil in the crankcase.
5. Remove the spark plug and pour two or three
tablespoons of clean, fresh engine oil into the
spark plug threaded openings. Reinstall and
tighten the spark plug.
6. Remove the battery and store it in a cool, dry
room on a wooden board. Never store the battery
on any concrete or earthen floor.
7. Clean and wipe the entire generator.
3.12.2 RETURN TO SERVICE
To return the unit to service after storage, proceed
as follows:
1. Check the tag on the engine for oil viscosity and
classification. Verify that the correct recom-
mended oil is used in the engine (see "Engine Oil
Requirements"). If necessary, drain and refill with
the proper oil.
2. Check the state of the battery. Fill all cells of
unsealed batteries to the proper level with dis-
tilled water. DO NOT USE TAP WATER IN THE
BATTERY. Recharge the battery to 100 percent
state of charge, or, if defective, replace the battery.
3. Clean and wipe the entire generator.
4. Reconnect the battery. Observe battery polarity.
Damage may occur if the battery is connected
incorrectly.
5. Turn OFF all electrical loads. Add fuel if neces-
sary and then start the engine.
6. Allow the unit to run for several minutes to warm
up.
7. Apply electrical loads to at least 50 percent of the
unit’s rated wattage capacity.
8. When the engine is thoroughly warmed up, shut
it down.
9. The generator is now ready for service.
3.13 ADJUSTING VALVE CLEARANCE
After the first 50 hours of operation, adjust the valve
clearance in the engine.
When adjusting valve clearance, the engine should be
at room temperature and the piston should be at Top
Dead Center (TDC) of its compression stroke (both
valves closed). Correct clearance is 0.001-0.003 inch
(0.03-0.07mm). Adjust valve clearance as follows:
1. Loosen the rocker arm jam nut. Use an allen
wrench to turn the pivot ball stud while checking
clearance between the rocker arm and the valve
stem with a feeler gauge (Figure 3.7).
Figure 3.7 — Adjusting Valve Clearance
FEELER GAUGE
ALLEN WRENCH
2. When valve clearance is correct, hold the pivot
ball stud with the allen wrench and tighten the
rocker arm jam nut with a crows foot. Tighten
the jam nut to 65-85 inch-pounds torque. After
tightening the jam nut, recheck valve clearance to
make sure it did not change (Figure 3.8).
Figure 3.8 — Tightening Jam Nut
CROW'S
FOOT
3.14 RV GENERATOR SERVICE
INTERVAL
50 Hours ................................ Clean Spark Arrestor
100 Hours ...........................Change Engine Oil/filter
100 Hours .................................. Clean Air Pre-filter
100 Hours ................................ Inspect Spark Plugs
250 Hours ............ Replace Paper Air Filter Element
400 Hours ...................................Replace Fuel Filter
500 Hours ................................Replace Spark Plugs
1st 50 Hours-then
every 500 Hrs. ..........................Adjust Valve Lash
Section 3 – Maintenance
Recreational Vehicle Generator