Honeywell HW3000, hw400 service manual Valve Lash, Governor Adjustment

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VALVE LASH

7.6 VALVE LASH

CAUTION

Valve lash inspection and adjustment must be performed with the engine cold.

1.Remove the cylinder head cover and carefully remove the gasket for re-use. (Inspect and replace gasket, if necessary.)

2.Remove the spark plug to reduce engine compres- sion resistance.

3.Turn the engine crankshaft using the recoil starter, positioning engine at top, dead center, of the com- pression stroke. This can be verified by the piston position in the cylinder.

4.Insert a feeler gauge between the rocker arm and valve spring to measure valve lash.

LOCK NUT

FIGURE 7-17:Lock Nut Location

7.7 GOVERNOR ADJUSTMENT

1.Start the engine and run with no load.

2.Attach a frequency meter and adjust the limiting screw on the governor stop to 62.5 Hz ± 0.5.

3.Stop the engine.

4.If frequency is out of range, see the “GOVERNOR RANGE ADJUSTMENT” procedure below.

5.Repeat steps 1 through 3. If frequency still out of range, see ENGINE DIAGNOSTICS (ALL MODELS), page 8-10

7.8GOVERNOR RANGE ADJUSTMENT

1.Remove the generator control panel for access.

2.Loosen the nut on the governor arm pinch bolt (see illustration).

NUT

GOVERNOR ARM SHAFT

 

GOVERNOR ARM

PINCH BOLT

GOVERNOR

SPRING

GOVERNOR ARM

LIMITING

IN.

Standard valve lash

0.005±0.001 in (0.125±0.025 mm)

SCREW

ANTI-SURGE SPRING

EX.

TABLE 7-5.Standard Valve Lash

0.007±0.001 in (0.175±0.025 mm)

THROTTLE

FIGURE 7-18:Governor Arm Assembly

A—ROCKER ARM

B—LOCK NUT

12 N•m (9 lb. ft.)

A

B

3.

Rotate the governor arm shaft counter-clockwise until

 

the throttle is completely open and hold in position.

4.

Tighten the nut on the governor arm pinch bolt to

•To increase valve lash,

screw pivot nut out.

• To decrease valve lash, screw pivot nut in.

C—PIVOT BOLT

30 N•m (22 lb. ft.)

C

5.Hold the rocker arm pivot and loosen the lock nut (see B in illustration).

6.Turn the rocker arm pivot (see C in illustration) to obtain specified valve lash.

7.Retighten the lock nut while holding rocker arm pivot and torque to 12 N•m (9 lb. ft.).

8.Check valve lash again after tightening lock nut.

9.Repeat steps 4 through 7, as needed, until valve lash is within specifications.

10.Reassemble the spark plug, cylinder head cover, and gasket.

 

maintain position.

5.

Confirm the governor arm and throttle move smoothly

 

and do not bind.

6.

Reinstall the generator control panel.

Honeywell Portable Electrical Generator Service Manual

www.honeywellgenerators.com

7-7

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Page 30 Page 32
Contents Read and Save These Instructions Page Contents This page Intentionally Left Blank Safety Messages Important Safety InstructionsArds Electric Shock Hazards Safety MessagesWarranties Northshore Power Systems Consumer Limited WarrantyWarranties Warranty StatementQuestions Northshore Power Systems Replacement Parts Limited Warranty Specifications Specifications and Wiring DiagramsBolt and Fastener Torque Information Bolt and Fastener Torque InformationWiring Diagrams Wiring DiagramsHW4000 & HW4000L HW5500 & HW5500L HW5500E & HW5500EL HW6200 & HW6200L HW7000E, HW7000EL, HW7500E, & HW7500EL Components This page Intentionally Left Blank Required Tools Preparing for ServiceTransporting Generator This page Intentionally Left Blank Operation Service Repair Time Analysis & Flat Rate ScheduleMisc Service Repair Time AnalysisConsumer Maintenance Schedule MaintenanceConsumer Maintenance Schedule AIR Filter Maintenance AIR Filter MaintenanceTer more frequently Remove foam air filters Coat the air filter with clean engine oilSqueeze out excess oil Cleaning Fuel Sediment CUP Cleaning Fuel Sediment CUPSpark Plug Service Cleaning Spark Arrestor Screen Cleaning Spark Arrestor ScreenValve Lash Governor AdjustmentValve Lash Yuasa 12N14-3A Battery ServiceBattery Service XtremeTroubleshooting Electrical Diagnostics HW3000/L Models Electrical Diagnostics HW3000/L ModelsAlternator Refer to Illustrations on Brush Assembly Electrical Diagnostics ALL Models Except HW3000/L Electrical Diagnostics ALL Models Except HW3000/L7000 Refer to Illustrations on AVR TAP Engine Diagnostics ALL Models Engine Diagnostics ALL ModelsControl Panel Service and DisassemblyNm 3 lb. ft Cylinder Head Bolts 48 Nm 35 lb. ft See WHEEL, LEG, & Handle ASSEMBLY,Engine and Alternator Engine and AlternatorAlternator AlternatorAlso known as Automatic Voltage Regulator or AVR Fuel Tank System Fuel Tank SystemEvaporative Emissions Control System Evaporative Emissions Control SystemNm 1.5 lb. ft Muffler MufflerCarburetor CarburetorCheck for continuity Starting SystemStarting System Starter Solenoid Terminal Nut 6 Nm 4 lb. ftCheck for wear or damage Install with recoil starter handle position as shownRecoil Starter Recoil StarterFAN Cover Remove and install with the recoil starter assemblyInstall with the recoil starter handle position as shown FAN CoverWHEEL, LEG, & Handle Assembly HW3000/L Models WHEEL, LEG, & Handle Assembly25 Nm 18 lb. ft WHEEL, LEG, & Handle Assembly ALL Models Except HW3000/LIndex Northshore Power Systems, LLC

hw400, HW3000, L specifications

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