Wisconsin VH4D Dokumentacja Pobierz pdf (Strona 12)

GRADE OF OIL

SEASON OR TEMPERATURE

Spring, Summer or Fall

+ 120°F to + 40°F

Winter

+ 40°F to + 15°F

+ 15°F to 0°F

Below Zero

GRADE OF OIL

SAE 30

SAE 20-20W

SAE 10w

SAE 5W-20

Use Oils classified as Service SE, SF, SG or CC

Crankcase

Capacity

New engine

4 Qts.

Oil and filter change

4 Qts.

Less - filter or filter change 3~ Qts.

off the engine and check the oil level by means of

dip stick (oil gauge saber). If necessary, add enough

oil to bring level up to the full mark. The standard dip

stick location is below the oil filler-breather tube, but

can be located on starting motor side upon request.

Use only high-grade highly refined oils, corresponding

in body to the S. A. E. (Society of Automotive En-

gineers) Viscosity Numbers listed in Grade of Oil

Chart.

SERVICE CLASSIFICATION OF OIL

In addition to the S.A.E. Viscosity grades, oils are also

classified according to severity of engine service. Use oils

classified by the Americal Petroleum Institute as Serviae

SE, SFor SG. These types ofoil are for engines performing

under unfavorable or severe operating conditions such as:

high speeds, constant starting and stopping, operating in

extreme high or low temperatures and excessive idling.

Follow summer recommendations in winter if engine is

housed in warm building.

Check oil level every 8 hours of operation.

The old oil should be drained and fresh oil added

after every 50 hours of operation.

To drain oil, remove drain plug illustrated in Fig. 3.

Oil should be drained while engine is hot, as it will

then flow more freely.

OIL PRESSURE

At engine operating temperature, the oil pressure will

be about 4 to 5 pounds per square inch, and due to

this low pressure system, an oil pressure gauge is

not required. When the engine is cold the pressure

will be higher, and a relief valye is fitted to the oil

pump so that under these conditions the maximum

pressure will be limited to 15 pounds.

FUEL

These engines can be furnished with either a gravity

feed tank mounted above the carburetor fuel level, a

side mount tank, or tank mounted below the engine.

In the latter two cases, a fuel pump is furnished.

The fuel tank should be filled with a good quality

gasoline free from dirt and water. The capacity of the

tank is approximately 6 gallons. Some of the poorer

grades of gasoline contain gum which will deposit on

valve stems, piston rings, and in the various small

passages in the carburetor, causing serious trouble

in operating and in fact might prevent the engine from

operating at all.

Use only reputable, well known

brands of Unleaded gasoline.

The gasoline should have an octane rating of at least 87.

Low octane gasoline will cause the engine to detonate, or

knock, and if operation is continued under this condition,

cylinders will score, valves will burn, pistons and bearings

will be damaged, etc.

Be sure that air vent in tank cap is not plugged with dirt, as

this would prevent fuel from flowing to the carburetor.

FUEL PUMP and PRIMING (Fig. 4)

The diaghragm type fuel pump, furnished on engines

with side mount or underslung fuel tanks, is actuated

by an eccentric on the camshaft, as illustrated in

cross section of engine, Fig. 2.

Hand Primer for hand crank engine is an accessory

furnished only upon request, and is a necessary func-

tion when starting a new engine for the first time, or

when engine has been out of operation for a period of

time. Gravity feed and electric start engines do not

require hand priming.

When priming, a distinct resistance of the fuel pump

diaghragm should be felt when moving the hand lever

up and down. If this does not occur, the engine should

be turned over one revolution so that the fuel pump

drive cam will be rotated from its upper position which

prevents movement of the pump rocker arm.

Assuming the gasoline strainer is empty, approximate-

ly 25 strokes of the primer lever are required to fill

the bowl. See Fig. 4. After strainer bowl is full, an

addiUonal 5 to 10 strokes are required to fill the

carburetor bowl. When carburetor is full the hand

primer lever will move more easily.

Fig. 4

1 2 ... 7 8 9 10 11 12 13 14 15 16 17 ... 47 48

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Wisconsin VH4D Dokumentacja Strona 12

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