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9907-031 WOODWARD

Brand:  WoodWard

Model number:9907-031 

Colour:new                  

Warranty: 12 months

Lead Time:3-day working day   

Country of origin: USA Price: Please contact us         

Product weight:0.85kg

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

9907-031   WOODWARD

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Products Name: 9907-031 WOODWARD

PRODUCT DESCRIPTION

Be prepared to make an emergency shutdown when starting the engine, turbine, or other type of prime mover, to protect against runaway or overspeed with possible personal injury, loss of life, or property damage.

Benefits:

Ballarms (110) 

 Replace the ballarms if the toes have a worn flat that exceeds .030 inch in 

width. 

Ballarm Bearings (111) 

 Replace rough or seized bearings. Replace bearing if measurable wear 

marks were found on pins (106). 

Pilot Valve Plunger (112) 

 The control and compensation land must not have nicks or scratches, and 

sharp corners must be retained. 

Thrust bearing (117) 

 Top and bottom races (116-118). Bearing race (116) must not be worn from 

ballarm toes. The rollers in bearing (117) must be clean and roll freely. 

Floating Lever (125) 

 Inspect for wear where droop pin contacts the lever. Inspect for wear in area 

of contact with the speed setting lever. 

Governor Assembly 

To prepare to assemble the governor, lay the parts in an orderly fashion on a 

clean dry work surface. Lubricate all O-rings with white petroleum jelly to facilitate 

assembly. 

Use only new O-rings, seals, gaskets and cotter pins. Careful, precise assembly 

methods will save time and help to ensure correct calibration of the governor. 

Torque all 1/4 - 20 screws to 90 lb-in (10 Nžm). 

Assembly Procedures 

1. Install O-ring (128) on needle valve (127) and install it in case (26). 

2. Install O-ring (130) on air bleed plug (129) and install it in case (26). 

3. Install stop screws (34). Leave screws (1) on cover plate (35) loose until 

after the governor is calibrated. 

4. Assemble servo piston (103) and link (102). Start double diameter pin (104) 

into the chamfered hole in servo piston (103). Align hole in link (102) with 

pin, and press the pin in. Be sure the pin does not protrude from either side 

of the piston. Install the piston assembly in the case. 

5. Turn case (26) bottom side up. Install retaining ring (99) on limit/shutdown 

pilot valve (100). Install spring (98) on the spring seat of plunger (100) and 

install this assembly in the case (Figure 5-11). 

6. Install one buffer spring (97), buffer piston (101), and second buffer spring 

(97) in the buffer bore of case (26). 

7. Place base gasket (96) on case (26). Install and secure base (95) with 

seven screws (75).


9905-973   WOODWARD

Shipping Port:  China

Payment: Bank of Chicago, Bank of Singapore

Express cooperation: fedex, DHL, UPS and your express account

Service: Professional Sales provides 24 hours /7 days online service

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