Valve Lash, Governor Adjustment | Honeywell HW3000, hw400 instruction

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.)

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.)

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

hw400, HW3000, L specifications

Honeywell is renowned for its innovative solutions in various domains, including manufacturing, aerospace, and building technologies. Among its many offerings, the Honeywell L, HW3000, and HW400 series stand out for their advanced features, technologies, and characteristics, tailored to meet the evolving demands of industries worldwide.

The Honeywell L Series is recognized for its versatility and reliability in process control applications. Designed to accommodate a range of industrial needs, these controllers provide enhanced flexibility with modifiable configurations that suit diverse operating conditions. With advanced user interfaces, intuitive programming options, and robust execution capabilities, they optimize performance while simplifying system maintenance.

The HW3000 series takes innovation a notch higher, featuring cutting-edge process automation technologies. It leverages advanced algorithms and communication protocols, facilitating seamless integration with existing systems and enhancing overall efficiency. This series is designed for high-performance operations, offering real-time data monitoring and control. The HW3000's modular architecture allows for easy upgrades and scalability, making it ideal for businesses planning for growth.

On the other hand, the Honeywell HW400 series is engineered for precision and reliability. It is equipped with state-of-the-art sensors and control mechanisms that ensure optimal performance in demanding environments. The HW400 model emphasizes sustainability, incorporating energy-efficient technologies that align with global initiatives for greener operations. Users benefit from advanced diagnostics and predictive maintenance capabilities, which minimize downtime and enhance productivity.

All three series—L, HW3000, and HW400—share a commitment to security and data integrity. Honeywell incorporates cybersecurity measures to protect sensitive information and facilitate secure communications. Moreover, they embrace a user-friendly design philosophy, ensuring that operators can easily interface with the systems, regardless of their technical background.

In summary, Honeywell's L, HW3000, and HW400 series highlight the company’s dedication to innovation, efficiency, and reliability. With advanced technologies and robust features, these products cater to a wide range of industrial applications, making them essential tools for businesses aiming to optimize their operations. Whether for process control, automation, or precision management, Honeywell continues to provide solutions that drive success in the modern industrial landscape.

Honeywell HW3000, hw400 service manual Valve Lash, Governor Adjustment

Models: hw400 HW3000 L