Manuals / Generac Power Systems / Lawn and Garden / Portable Generator

Generac Power Systems 941-2, 940-2 Section SHUTOFF VALVE AND REGULATOR, Adjustments, Description

Models: 941-2 940-2

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Section 4.2

Section 4.2

SHUTOFF VALVE AND REGULATOR

GENERAL

See Figure 1. The fuel shutoff valve (lockoff solenoid) and the secondary regulator are retained to a flat mounting bracket which, in turn, mounts to the gener- ator base cover. The fuel lockoff solenoid is retained to the mounting bracket by means of a u-bolt. The secondary regulator is retained to the mounting bracket with two 1/4"-20 x 3/4" long capscrews.

ITEM

QTY

DESCRIPTION

1

1

LP Gas Regulator

2

1

Fuel Lockoff Solenoid

3

1

U-Bolt-1.25" wide (5/16"-i 8)

4

2

3/4" NPT Street Elbow

5

1

3/4" NPT Close Nipple

6

1

3/8" NPT Street Elbow

7

1

1/2" x 3/8" NPT Fitting

8

1

Hose Clamp

9

1

1/2" ID Hose (11.5" long)

10

2

1/4"-20 x 3/4" Capscrew

11

2

1/4" Lockwasher

12

2

5/16" Lockwasher

13

2

5/16"-18 Hex Nut

14

1

Regulator Mounting Bracket

15

1

Sleeving (9" long)

 

 

 

 

 

 

 

 

 

 

Figure 1. Shutoff Valve & Regulator

ADJUSTMENTS

There are no adjustments on the fuel lockoff solenoid or the secondary regulator. This system is NOT equipped with a load block.

THE LP GAS REGULATOR

The secondary regulator is a GARRETSON® Model KN. It is designed for simplicity and simple operation. The regulator is suitable for use with low pressure vaporized gaseous fuels where dependable starting is a requirement. Recommended inlet pressure to the regulator is 11 inches water column.

The regulator comes with a 3l4 inch NPT fuel inlet and a 3/8 inch NPT fuel outlet.

The LOCKOFF ADJUSTMENT SCREW shown in Figure 2 has been preset at the factory. No additional adjustment is authorized.

Figure 2. LP Gas Regulator

DANGER! DO NOT ATTEMPT TO ADJUST

!THE GAS REGULATOR. REGULATOR ADJUSTMENTS SHOULD BE ATTEMPTED ONLY BY QUALIFIED GAS SERVICE TECHNI- CIANS WHO HAVE THE KNOWLEDGE AND SPECIALIZED EQUIPMENT FOR SUCH ADJUSTMENTS.

TESTING THE FUEL LOCKOFF SOLENOID

GENERAL:

The fuel lockoff solenoid is energized open by 12 volts DC power from the A6060 circuit board during engine cranking. The solenoid can also be energized open without cranking by actuating the fuel primer switch on the generator panel.

(Continued)

Page 4.2-1

Page 76 Page 78
Page 77
Image 77
Generac Power Systems 941-2 Section SHUTOFF VALVE AND REGULATOR, Adjustments, The Lp Gas Regulator, Description, General
Page 76 Page 78