Engine Maintenance; Adjust Valve Lash; Changing Engine Oil And Oil Filter - Briggs & Stratton 40336 Manual Del Operador

Engine Maintenance

WARNING Unintentional sparking could cause fire or
electric shock resulting in death or serious injury.
WHEN ADJUSTING OR MAKING REPAIRS TO YOUR
GENERATOR
• Disconnect the spark plug wire from the spark plug and
place the wire where it cannot contact spark plug.
WHEN TESTING FOR ENGINE SPARK
• Use approved spark plug tester.
• DO NOT check for spark with spark plug removed.
When all engine servicing is complete, replace 15 Amp
fuse in control board and reset exercise timer.

Adjust Valve Lash

1. Valve lash adjustment must be performed on a
COLD engine.
2. Remove both spark plugs to ease manual rotation
of engine crankshaft.
3. Access to rotate the engine by hand is available by:
a. Removing the engine intake screen in the
battery compartment such that the crankshaft nut is
accessible. Care must be taken when reassembling
this screen using the self tapping screws as over-
torqueing will strip out the partition material.
b. OR remove the front alternator outlet air scoop
by removing the four screws that secure it. The
crankshaft may be rotated via the aluminum
alternator fan. Care should be taken not to damage
the fan, and to reinstall the alternator outlet air
scoop in the proper orientation.
4. Set the No. 1 cylinder at ¼" (6mm) past Top Dead
Center (TDC) on the compression stroke.
5. Using a feeler gage (A), measure the valve clearance.
6. The proper valve clearance is .005" (0.13mm) for
both the intake and exhaust.
7. Adjust the clearance by loosening the lock nut (B),
then turn the adjusting screw (C).
8. Once the clearance is properly set, hold the adjusting
screw while torqueing the lock nut to 70 in-lbs (8Nm).
9. Repeat for cylinder No. 2
A
B
C
Engine Oil
The engine is filled with synthetic oil (API SJ/
CF 5W-30). This allows for system operation in the
widest range of temperature and climate conditions.
We recommend the use of Briggs & Stratton Warranty
Certified oils for best performance. Other high-quality
detergent oils are acceptable if classified for service SJ
or higher. DO NOT use special additives.
Outdoor temperatures determine the proper oil viscosity
for the engine. Use the chart to select the best viscosity
for the outdoor temperature range expected.
NOTICE Synthetic oil meeting ILSAC GF-2,
API certification mark and API service symbol
with "SJ/CF ENERGY CONSERVING" or
higher, is an acceptable oil at all temperatures.
Use of synthetic oil does not alter required oil
change intervals.
* Below 40°F (4°C) the use of SAE 30 will result in hard
starting.
** Above 80°F (27°C) the use of 10W30 may cause increased
oil consumption. Check oil level more frequently.

Changing Engine Oil and Oil Filter

Open roof and remove front panel to access the oil filter
and to add engine oil.
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