Generac Power Systems quietpact 85d Owner's Manual page 8

General Information
Some installations using a "shared" fuel tank may have a gen-
erator fuel pickup tube that is shorter than the vehicle's engine
pickup tube. Such an arrangement causes the generator engine
to "run out of fuel", while adequate fuel for the vehicle engine
remains in the tank.
Also, appropriate care should be taken in applications where
extremely low ambient temperatures are possible, to ensure the
temperature of the diesel fuel is not allowed to fall below levels
where "gelling" could occur.
1.5.2 FUEL CONSUMPTION (GAL/HR)
Model No Load
005432-0 0.28
1.5.3 ENGINE OIL REQUIREMENTS
Use a high-quality detergent oil with American Petroleum Institute
(API) classification "For Service CC." Detergent oils keep the
engine cleaner and reduce carbon deposits. Use oil having the
following SAE viscosity rating, based on the ambient temperature
range anticipated before the next oil change:
Temperature
Above 100° F (38° C)
40° to 100° F (4.4° to 38° C)
Below 40° F (4.4° C)
Crankcase and oil filter capacity is approximately 4.35L or 4.6 U.S.
quarts. Do NOT use special additives. See "Checking the Engine Oil
Level" and "Changing the Engine Oil and/or Filter" sections for oil
level checking and changing procedures.
1.5.4 COOLANT
Use a 50:50 mixture that is half low silicate, ethylene glycol base
antifreeze and half soft water. Use only soft water and only low
silicate antifreeze. If desired, a high-quality rust inhibitor to the
recommended coolant mixture may be added. When adding cool-
ant, always add the recommended 50-50 mixture.
DO NOT remove the radiator pressure cap

while the engine is hot; otherwise, serious
burns from boiling liquid or steam could
result.
6
NOTE:
Half Load Full Load
0.49 0.78
Oil Grade (Recommended)
SAE 15W-40* or SAE 40
SAE 10W-30 or SAE 30
SAE 5W-20 or 5W-30
* - in units from the factory
Ethylene glycol base antifreeze is poisonous.

DO NOT use mouth to siphon coolant from
the radiator, recovery bottle, or any contain-
er. Wash hands thoroughly after handling.
NEVER store used antifreeze in an open con-
tainer because animals are attracted to the
smell and taste of antifreeze, even though it
is poisonous to them.
Do not use any chromate base rust inhibi-

tor with ethylene glycol base antifreeze; or
else, chromium hydroxide ("green slime")
will form and cause overheating. Engines
that have been operated with a chromate
base rust inhibitor must be chemically
cleaned before adding ethylene glycol base
antifreeze. Using any high-silicate antifreeze
boosters or additives will also cause over-
heating. DO NOT use any soluble oil inhibitor
for this equipment.
1.5.5 ENGINE
Type of Engine .................................................................................ISM Diesel
Cylinder Arrangement .........................................................................3, in-line
Displacement .................................................................. 69.02 in 3 . (1131 cc)
Bore ......................................................................................3.03 in. (77 mm)
Stroke ...................................................................................3.18 in. (81 mm)
Compression Ratio ......................................................................... 23.56-to-1
Combustion Chamber Type ....................................................Pre-Combustion
Rated Horsepower ................................................................15 @ 1,950 rpm
Cylinder Block .................................................................................... Cast Iron
Number of Main Bearings ...............................................................................4
Number of Teeth on Flywheel .................................................................... 104
Type of Governor ...................................................... Mechanical, Fixed Speed
Fuel Filter .....................................................Full Flow Spin-On (Part # 69858)
Oil Filter .................................................................Full Flow with Bypass Valve
Oil Pressure ...................................................................................... 29-71 psi
Type of Cooling System .................................... Pressurized, Closed Recovery
Cooling Method .......................................................................... Liquid-cooled
Type of Cooling Fan ...............................................................Centrifugal Puller
Cooling System Capacity .................................................1.4 U.S. gals (5.3 L)
Air Cleaner ................................................... Disposable Filter (Part # C4880)
Starter .................................................................................12-volt DC Electric
Recommended Battery ........................................... 70 Ah, 600 Cold-cranking
Maximum Cranking Current .............................................................220 Amps
Ground Polarity ...................................................................................Negative
(Part # 126-70939)
Amps (Minimum ratings)