Parts

Metering Valve 245846

627

621

622

*637 639*

*634

*638

626

 

 

*632

 

628

 

 

631

 

636

 

629

 

 

623

 

630

 

 

*633

 

 

635

 

645*

 

644

 

 

645*

624

 

646

*643

 

647

625

621

 

 

 

Ref.

 

 

 

No.

Part No. Description

Qty.

621

598140

ELBOW, 1/8 npt(m) x 5/32” (4 mm)

2

 

 

tube

 

622‡

 

VALVE CAP

1

623‡

 

PISTON

1

624‡

 

CYLINDER

1

625

15B545

PISTON ROD

1

626

15A834

TIE ROD

2

627

15A835

PACKING NUT

1

628

15A833

INLET HOUSING

1

629

180233

WARNING LABEL

1

630

245850

FLUID NEEDLE

1

631

111040

LOCKNUT, nylon; 5/16 UNC-3B

1

632*

 

O-RING, nitrile

1

633*

 

O-RING, nitrile

1

634*

 

O-RING, nitrile

1

Ref.

 

 

 

No.

Part No. Description

Qty.

635

109141

SPRING

1

636

102040

LOCKNUT; 1/4 UNC

2

637*

 

V-PACKING, UHMWPE

6

638*

189901

GLAND, male

1

639*

 

V-PACKING, leather

5

643*

 

O-RING, buna-n

1

644

15A830

SEAT

1

645*

107079

O-RING, PTFE

2

646

15A832

SEAT HOUSING

1

647

102637

SCREW; 3/8 UNC-2A

4

*Parts included in kit 234098.

† Parts included in kit 234131.

Not available for order from Graco.

Replacement Warning labels available at no cost.

309521J

27

Page 27
Image 27
Hitachi 309521J important safety instructions Metering Valve

309521J specifications

The Hitachi 309521J is a remarkable piece of equipment designed to meet the demands of modern industrial applications. Known for its reliability and efficiency, this model has gained a strong reputation in various sectors including manufacturing, construction, and civil engineering.

One of the standout features of the Hitachi 309521J is its powerful engine. Equipped with advanced technology, the engine provides robust performance while ensuring fuel efficiency. This translates to lower operational costs over time, making it an economical choice for businesses looking to optimize their budgets. The engine meets strict emission standards, emphasizing Hitachi's commitment to environmental sustainability.

The Hitachi 309521J also features an innovative hydraulic system that enhances productivity. The hydraulic components are designed for high performance and quick response times, allowing for seamless operation during various tasks. Whether lifting heavy loads, excavating, or performing complex maneuvers, the 309521J demonstrates efficiency and power, making it suitable for diverse applications.

In terms of design, the Hitachi 309521J prioritizes operator comfort and safety. The spacious cab is ergonomically designed, providing excellent visibility and easy access to controls. This user-friendly layout reduces operator fatigue, helping to improve overall safety and performance on the job site. Additionally, the machine is equipped with advanced safety features including automatic shut-off systems, ensuring maximum protection for the operator and personnel nearby.

Technologically, the Hitachi 309521J is packed with cutting-edge features. The model includes real-time monitoring capabilities, providing operators and managers with insights into operational efficiency, maintenance needs, and performance metrics. This helps in preventative maintenance and reduces downtime, ultimately enhancing productivity.

Durability is another key characteristic of the Hitachi 309521J. Built with high-quality materials, this machine withstands harsh working environments, maintaining optimal performance over extended periods. It is designed to endure common wear and tear, ensuring a long service life that justifies the investment.

In summary, the Hitachi 309521J stands out due to its powerful engine, efficient hydraulic system, operator-friendly design, advanced technology, and robust durability. It serves as a versatile tool in various industrial applications, helping businesses increase productivity while maintaining cost-efficiency and safety. As industries continue to evolve, the 309521J remains a solid choice for companies looking to enhance their machinery fleet with a reliable and sophisticated model.