Generac 004692-2 owner manual Engine Governor Adjustment, Set Pin

Section 2 — Post Installation Start-up and Adjustments

Air-cooled 8.5 kW Generator

3.	Turn on appliances, lights, pumps, etc., that are
	on the emergency circuits in an attempt to fully
	load the generator. Be cautious not to overload
	the generator. Use the following chart as a guide:
	Unit	120 Volts	240 Volts
	8.5 kW	70.8 amps	35.4 amps
4.	When full load has been achieved. Connect a fre-
	quency meter to the output lugs of the generator’s
	main line circuit breaker.

Do not make any unnecessary adjustments.

!Factory settings are correct for most applica- tions. However, when making adjustments, be careful to avoid overspeeding the engine.

If this procedure or equipment are not available, locate the nearest Generac Dealer and they can per- form the adjustments.

5.The fuel regulator is fitted with two adjustment screws. While watching the frequency meter, slowly turn the adjustment screws clockwise or counterclockwise one at a time until the highest frequency is read on the meter. (Figures 2.1 and 2.2).

Figure 2.1 — Dual Fuel Regulators

V-twin

Adjustment	Adjustment
	Screw
Screw
	(One Side
(Both Sides)
	Only)

Set Pin

(Both Sides)

6.When the highest frequency is reached maximum power has been set. From this point, turn both adjustment screws 1/4 turn clockwise. The regu- lator is now set.

NOTE:

A service fee may be charged for this adjustment.

2.7ENGINE GOVERNOR ADJUSTMENT

If both AC frequency and voltage are correspondingly high or low, adjust the engine governor as follows:

1. Loosen governor clamp bolt (Figure 2.3).

Figure 2.3 — V-twin Engine Governor

Adjustment

Idle Spring

Governor

Shaft

(Rotate

Clockwise)

Governor Clamp Bolt	No Load Idle
	Adjustment Screw

Figure 2.2 — Placement of Regulator

Adjustment Screw

7.Turn UTILITY power to the main distribution panel back on. This can be done by switching the service main breaker to the on or closed position. Allow the generator to shut down.

12 Generac® Power Systems, Inc.

2.Completely remove the idle spring.

3.With governor arm at wide open throttle position, rotate governor shaft fully clockwise. Tighten clamp bolt to 84 inch-pounds.

4.Start unit and apply full load. Use full load speed adjust screw (Figure 2.4) to adjust frequency to 58 Hz.

5.Remove load, stop engine, loosen the idle adjust screw and reconnect the idle spring.

6.Using a hand, push the governor arm to the closed throttle position. Make sure the idle spring does not stretch at all.

7.Restart the unit.

8.Slowly turn the idle adjust screw to adjust the no- load idle frequency to 63-63.5 Hz.

9.The governor is now set.