ARMY TM 9-6115-642-10
AIR FORCE TO 35C2-3-455-11
MARINE CORPS TM 09247A/09248A-10/1
The generator set can be operated continuously at any load from no load up to and including rated load; However, at
light loads (less than 25% of set rating) and oily residue (unburned fuel oil) may occasionally be noticed in the exhaust
system outlet and around connection joints in the exhaust system. This residue is caused by the inability of the fuel in-
jection system to consistently meter the small amount of fuel required to operate at these low load levels. It is not a de-
fect in the fuel system. The oily residue could affect engine performance and create a cosmetic problem on and around
the generator set. Operation at rated load will bum off this oily residue. The length of time required at rated load de-
pends on the amount of residue. The muffler may also need to be removed and cleaned if excessive build up occurs.
This oily residue can be prevented by increasing the electrical load on the set.
TABLE 2-4. Operator Preventive Maintenance Checks and Services
Change 1 2-9