Generac 005605-0 User Manual

Page of 20
13
Section 3 — Maintenance
Portable Generator System
NOTE:
The rocker arm jam nut must be held in place as the pivot ball 
stud is turned.
When valve clearance is correct, hold the pivot ball stud in place 
with the allen wrench and tighten the rocker arm jam nut. Tighten 
the jam nut to 174 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.
• 
NOTE:
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. Replace spark plug.
Re-attach the spark plug wire to the spark plug.
• 
3.7 GENERAL
The generator should be started at least once every seven days and 
be allowed to run at least 30 minutes. If this cannot be done and 
the unit must be stored for more than 30 days, use the following 
information as a guide to prepare it for storage.
DANGER
  NEVER store engine with fuel in tank indoors 
or in enclosed, poorly ventilated areas where 
fumes may reach an open flame, spark or pilot 
light as on a furnace, water heater, clothes dryer 
or other gas appliance.
3.8  LONG TERM STORAGE
It is important to prevent gum deposits from forming in essential 
fuel system parts such as the carburetor, fuel hose or tank during 
storage. Also, experience indicates that alcohol-blended fuels 
(called gasohol, ethanol or methanol) can attract moisture, which 
leads to separation and formation of acids during storage. Acidic 
gas can damage the fuel system of an engine while in storage.
To avoid engine problems, the fuel system should be emptied 
before storage of 30 days or longer, as follows:
Remove all gasoline from the fuel tank.
• 
DANGER
  Drain fuel into approved container outdoors, 
away from open flame. Be sure engine is cool. 
Do not smoke in the vicinity or light a cigarette.
Start and run engine until engine stops from lack of fuel.
• 
While engine is still warm, drain oil from crankcase. Refill with 
• 
recommended grade.
Remove spark plugs and pour about 1/2 ounce (15 ml) of 
• 
engine oil into the cylinders. Cover spark plug hole with rag. Pull 
the recoil starter a couple times to lubricate the piston rings and 
cylinder bore..
  Avoid spray from spark plug holes when 
cranking engine.
Install and tighten spark plugs. Do not connect spark plug 
• 
wires.
Clean the generator outer surfaces. Check that cooling air slots 
• 
and openings on generator are open and unobstructed.
Store the unit in a clean, dry place.
• 
3.9  OTHER STORAGE TIPS
Do not store gasoline from one season to another.
• 
Replace the gasoline can if it starts to rust. Rust and/or dirt in 
• 
the gasoline will cause problems with the carburetor and fuel 
system.
If possible, store the unit indoors and cover it to give protection 
• 
from dust and dirt. BE SURE TO EMPTY THE FUEL TANK.
If it is not practical to empty the fuel tank and the unit is to be 
• 
stored for some time, use a commercially available fuel stabilizer 
added to the gasoline to increase the life of the gasoline.
Cover the unit with a suitable protective cover that does not 
• 
retain moisture.
DANGER
  NEVER cover the generator while engine and 
exhaust area are warm. Allow unit to cool 
entirely.