Northern Industrial Tools 10000 BDG owner manual Installation, To determine belt tension

ALWAYS remove the spark plug or spark plug wire before working on the engine or generator, this prevents accidental starting.

ALWAYS provide adequate ventilation. Do not operate generator in any enclosed or narrow space. Engines consume oxygen and give off deadly carbon monoxide, a poisonous gas. Improper ventilation will cause damage to generator and possible injury to

The generator shaft is 28 mm diameter X 2.38” long with a 8mm key way. The table below shows the recommended horsepower and sheaves .

The shaft speed of the generator must be between 3480-3780 RPM. At no load the correct speed is 3780 RPM. If the engine is a 3750 RPM engine, then a

	Double Sheave Dia. Double Sheave Dia.
Engine Hp	V-Belt Type	V-Belt Type

people.

00039

Quantity	Quantity
6.60”	6.00”

ALWAYS remove all oil or gasoline deposits and accumulated dirt from generator and immediate area. Keep generator head and engine clean.

NEVER operate the generator under the following conditions:

A. Excessive change in engine speed, slow or fast.

B.Overheating in load connecting devices.

C.Sparking or arcs from generator.

D.Loss of electrical output.

E.Damaged receptacles.

F.Engine misfire.

G.Excessive vibration.

H.Enclosed compartments, or confined areas.

I.Flame or smoke.

J.Rain, snow or wet conditions.

K.Operator non-attendance.

L.Without proper guarding in place.

WARNING Keep fire extinguisher close by your generator and be familiar with how to use it. Consult your local fire department for correct extinguisher type.

INSTALLATION

OUTDOORS: Choose a location where the generator will not be exposed to rain, snow or direct sunlight. Position the generator on secure, level ground so it will not tip or slide down a hill. Place the generator so that the exhaust fumes will not be

directed towards people. The installation site must be free from water, moisture, or dust. All electrical components should be protected from excessive moisture or the insulation system will deteriorate and result in

grounding or shorting out of the generating system. Foreign matters, such as dust, dirt, sand, lint or

abrasive materials can cause damage to the generator head and engine if allowed into the cooling system.

POWER TRANSMISSION: The recommended method to transfer the power from the engine to the generator is by using sheaves (pulleys) and a V-belt.

18 Hp	B Belt	3VX Belt
	2	2

sheave diameter ratio of 1:1 should be used. This means that the diameter of the sheave on the engine is the same as the diameter of the sheave on the generator. If smaller than recommended sheaves are used, the life of the belt will be shortened. The possibility of belt slippage also increases with a smaller sheave.

The engine and generator should be mounted to a plate or surface that can withstand the constant vibration and stresses that will be produced. See figure 3 for a possible mounting configuration.

Figure 3

NOTE: Guards are removed to show details

DANGER	00291
	Always have proper guarding

of the V-belt(s) and sheaves to prevent access to any pinch points. Failure to guard the power transmission mechanisms may result in serious injury or death.

			Foot print of
			mounting feet
	The		is shown at left.
		user shall determine the proper belt
	tensioning method for their specific use.		Use 7/16”
			grade 5 bolts.
	To determine belt tension:
	Measure L - the center to center distance of the two
	sheaves.		00292
	Measure d - the deflection of the belt.
5		Optional mount kit (item #165935) is available in
	00307	the Northern catalog and the NorthStar parts

catalog. Includes 2 plates and mounting hardware.