P 5/ 19

Repair

[4] DISASSEMBLY/ASSEMBLY

[4]-1. V-belt 5-800, Cutting device (cont.)

ASSEMBLING

Assemble their parts by reversing the disassembly procedure.

(1)Assemble one of Ball bearing 6203LLU to Cutting holder, then snap Retaining ring R-40 into the groove of Cutting device to secure the bearing.

(2)Insert Spindle into the other Ball bearing 6203LLU, then assemble them to Cutting device until they stop.

Note: Use two 1R030 as drawn in Fig. 7 so that their inner retainers of Ball bearings 6203LLU can be held without load to the other portions.

This retains the proper tensions to their inner retainers.

(3)Insert Lock shaft into the place of Cutting device, then set Sliding disc and Impact plate. Push Lock shaft from Belt cover side toward Blade installation side until the top bumps against Impact plate. (Fig. 8)

(4)Belt tension must be adjusted by turning M6 Tension screw clockwise until M6 Hex nut is aligned to a line between plus mark and minus mark. (Fig. 9.)

(5)Holder of Water supply set can be set to Belt cover by turning clockwise/ counterclockwise to 90° .

Fig. 7

1R030 to hold the inner retainer of Ball bearing 6203LLU

1R030 to hold the inner retainer of Ball bearing 6203LLU

Fig. 8

[Belt cover side]

Impact plate

Align the flat end of Impact plate to that of Hood complete.

Lock shaft

[Blade installation side]

Fig. 9

Holder

M6 Square nut

Line

Belt cover

M6 Tension screw

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Image 5
Makita EK7650H, EK7651H dimensions Assembling

EK7650H, EK7651H specifications

The Makita EK7650H and EK7651H are robust and powerful cut-off saws designed for professional contractors and construction workers. These models are ideal for cutting through concrete, masonry, asphalt, and other tough materials with precision and efficiency. Their advanced engineering and innovative features set them apart in the competitive landscape of power tools.

One of the standout features of both models is the 4-stroke engine technology, which provides a significant reduction in emissions and noise compared to traditional 2-stroke engines. This makes them environmentally friendly while also allowing for longer operating times without the need for frequent fuel refills. The powerful 6.6 HP engine delivers exceptional cutting performance, enabling users to tackle even the most challenging jobs.

The EK7650H and EK7651H are equipped with a “Fast Start” technology that allows for easy starting, reducing the effort required to get the saw up and running. This is especially useful for users who need to work quickly and efficiently on-site. Additionally, the saws feature an automatic choke that enhances starting reliability in various weather conditions.

Comfort and usability are central to the design of these models. The dual anti-vibration technology minimizes vibrations during operation, significantly reducing user fatigue. The ergonomic handle provides a secure grip, allowing for greater control during cutting tasks. This is particularly beneficial for prolonged use in demanding work environments.

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Both models come with an adjustable cutting depth feature, enabling users to achieve precise cuts for various materials. The easy-to-access air filter and fuel system ensure simple maintenance, extending the life of the saws.

In summary, the Makita EK7650H and EK7651H are powerful, efficient, and user-friendly cut-off saws that cater to the needs of professional users. With their advanced features, including a 4-stroke engine, ergonomic design, and versatility in blade sizes, these saws are indispensable tools for anyone looking to perform cutting tasks with precision and ease.