SAFETY INSTRUCTIONS

2Sharpening your chain and adjusting raker clearance

!The risk of kickback is increased with a badly sharpened chain!

AGeneral information on sharpening cutting teeth

• Never use a blunt chain. When the chain is blunt you have to exert more pressure to force the bar through the wood and the cuttings will be very small. If the chain is very blunt it will not produce any cuttings at all, just wood powder.

It is very difficult to sharpen a chain correctly without the right equipment. We recommend you use a file gauge. This will help you obtain the maximum kickback reduction and cutting performance from your chain.

The following faults will increase the risk of

! kickback considerably.

A sharp chain eats its way through the wood and produces long, thick cuttings.

The cutting part of the chain is called the CUTTING LINK and this consists of a CUTTING TOOTH (A) and the RAKER LIP (B). The cutting depth is determined by the difference in height between the two.

A

B

FILE ANGLE TOO

 

LARGE

CUTTING ANGLE

 

TOO SMALL

FILE DIAMETER

TOO SMALL

B Sharpening cutting teeth

When you sharpen a cutting tooth there are five important factors to remember.

FILING ANGLE

CUTTING ANGLE

FILE POSITION

ROUND FILE DIAMETER

FILE DEPTH

1

5

See the ”Technical data” section for information about sharpening your saw chain.

To sharpen cutting teeth you will need a ROUND FILE and a FILE GAUGE. See the ”Technical data” section for information on the size of file and gauge that are recommended for your saw chain.

1Check that the chain is correctly tensioned. A slack chain is difficult to sharpen correctly.

2Always file cutting teeth from the inside face, reducing the pressure on the return stroke.

File all the teeth on one side first, then turn the saw over and file the teeth on the other side.

3File all the teeth to the same length. When the length of the cutting teeth is reduced to 4 mm (0,16") the chain is worn out and should be replaced.

min 4 mm

(0,16")

12 – English

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Jonsered 625, 670, 630 Sharpening your chain and adjusting raker clearance, General information on sharpening cutting teeth

630, 670, 625 specifications

The Jonsered 625, 670, and 630 chainsaws represent a robust line of products designed specifically for both professional and amateur users who require reliability, power, and efficiency in their cutting tasks. These models are a testament to Jonsered's commitment to innovation and performance in the forestry and outdoor equipment sector.

The Jonsered 625 features a compact design, making it ideal for users who need a lightweight tool for trimming, pruning, or cutting smaller trees. This model is equipped with a powerful engine that delivers an impressive power-to-weight ratio, enabling users to handle tough jobs without feeling fatigued. One of the standout features of the 625 is its ergonomic design, including a comfortable handle and optimized balance, which significantly reduces operator strain during extended use.

Meanwhile, the Jonsered 670 is tailored for those who need a bit more power and capacity. It is versatile enough to handle medium-sized cutting tasks as well as heavy-duty use. This model is designed with advanced vibration dampening technology, minimizing vibrations transferred to the user's hands, thus enhancing comfort and precision. The 670 also incorporates the Easy Start system, which makes starting the saw simple, even after long periods of inactivity.

The Jonsered 630 stands at the higher end of this trio, aimed at professional users who demand peak performance. With an increased engine size and enhanced cutting speed, the 630 can tackle larger trees and tougher materials with ease. This model features a high-performance air filtration system that ensures the engine remains clean and runs efficiently. Additionally, the 630 incorporates a centrifugal air cleaning system that prolongs service intervals and reduces maintenance needs.

All three models come equipped with cutting-edge technologies such as the X-Torq engine, which lowers fuel consumption and exhaust emissions, making them environmentally friendly options in today's market. These chainsaws incorporate safety features like chain brakes and low kickback chains, ensuring user safety during operation.

In summary, the Jonsered 625, 670, and 630 chainsaws each offer distinct advantages catering to various user needs, from homeowners tackling light-duty tasks to professionals requiring robust, high-performance machinery. The blend of technology, ergonomic design, and safety ensures that Jonsered continues to be a trusted name in outdoor power equipment. These chainsaws not only deliver superior cutting performance but also provide a seamless user experience.