Adjusting Ohv-432 Valve Clearance; Cooling System - Home Depot 0H9681 El Manual Del Propietario

Maintenance
The electrolyte is a dilute sulfuric acid that

is harmful to the skin and eyes. It is electri-
cally conductive and corrosive. The follow-
ing procedures are to be observed:
• Wear full eye protection and protective clothing.
• If electrolyte contacts the skin, wash it off
immediately with water.
• If electrolyte contacts the eyes, flush thorough-
ly and immediately with water and seek medical
attention.
• Spilled electrolyte is to be washed down with
an acid neutralizing agent. A common practice
is to use a solution of 1 pound (500 grams)
bicarbonate of soda to 1 gallon (4 liters) of
water. The bicarbonate of soda (baking soda)
solution is to be added until the evidence of
reaction (foaming) has ceased. The resulting
liquid is to be flushed with water and the area
dried.

Lead-acid batteries present a risk of fire
because they generate hydrogen gas. The
following procedures are to be followed:
• DO NOT SMOKE when near the battery.
• DO NOT cause flame or spark in battery area.
• Discharge static electricity from body before
touching the battery by first touching a ground-
ed metal surface.
Be sure the AUTO/OFF/MANUAL switch is

set to the OFF position before connecting
the battery cables. If the switch is set to
AUTO or MANUAL, the generator can crank
and start as soon as the battery cables are
connected.


Be sure the utility power supply is turned off
and the 7.5A fuse is removed from the gener-
ator control panel, or sparking may occur at
the battery posts as the cables are attached
and cause an explosion.
4.8 ADJUSTING OHV-432 VALVE
CLEARANCE
After the first six (6) months of operation, check the valve clear-
ance in the engine, adjust if necessary.
Important: If feeling uncomfortable about doing this procedure
or the proper tools are not available, please contact the Dealer for
service assistance. This is a very important step to ensure longest
life for the engine.
To check valve clearance:
• The engine should be cool before checking. If valve clearance
is 0.006" - 0.008" (0.15 - 0.20mm), adjustment is not needed.
• Remove spark plug wire and position wire away from plug.
• Remove spark plug.
20
• Make sure the piston is at Top Dead Center (TDC) of its com-
pression stroke (both valves closed). To get the piston at TDC,
remove the intake screen at the top of the engine to gain access
to the flywheel nut. Use a large socket and socket wrench to
rotate the nut and hence the engine in a clockwise direction.
While watching the piston through the spark plug hole. The
piston should move up and down. The piston is at TDC when it
is at its highest point of travel.
To adjust valve clearance (if necessary):
• Make sure the engine is at 60° to 80° F.
• Make sure that the spark plug wire is removed from the spark
plug and is out of the way.
• Remove the four screws attaching the valve cover.
• Loosen the rocker jam nut. Use a wrench to turn the pivot ball
stud while checking clearance between the rocker arm and the
valve stem with a feeler gauge. Correct clearance is:
• Intake — 0.005-0.007 inch (0.13-0.17 mm)
• Exhaust — 0.007-0.009 inch (0.18-0.22 mm)
Hold the rocker arm jam nut in place as the pivot ball stud is
turned.
When valve clearance is correct, tighten the rocker arm jam nut.
Tighten the jam nut to 70 to 106 in/lbs. torque. After tightening the
jam nut, recheck valve clearance to make sure it did not change.
• Install new valve cover gasket.
• Re-attach the valve cover.
Start all four screws before tightening or it will not be possible
to get all the screws in place. Make sure the valve cover gasket
is in place.
• Install spark plug.
• Re-attach the spark plug wire to the spark plug.
4.9

COOLING SYSTEM

Air inlet and outlet openings in the generator compartment must
be open and unobstructed for continued proper operation. This
includes such obstructions as high grass, weeds, brush, leaves
and snow.
Without sufficient cooling and ventilating air flow, the engine/gen-
erator quickly overheats, which causes it to quickly shut down.
(See Figure 4.4 for vent locations.)
Make sure the door and roof are in place during operation as
running the generator with them removed can affect cooling air
movement.

The exhaust from this product gets extremely
hot and remains hot after shutdown. High
grass, weeds, brush, leaves, etc. must
remain clear of the exhaust. Such materi-
als may ignite and burn from the heat of the
exhaust system.
NOTE:
NOTE: