6.4 Plunge sawing

The plunge sawing technique should be used only on soft materials and when the orbital action is switched off. A little practice is required in order to be able to plunge the blade into the material while the tool is run-

en ning and thus make cut-outs without first drilling a hole. Plunge sawing is possible only with short saw blades. Plunge cuts may be started with the tool in one of two different positions:

in the normal position

or in the reversed position

1.Hold the tool with the front edge of the contact shoe against the workpiece.

2.Press the transport lock and then press the control switch.

3.Press the tool firmly against the workpiece and begin the plunge movement by reducing the angle of the tool (contact shoe) to the workpiece. It is important to ensure that the tool is running before the blade is brought into contact with the workpiece. The tool may otherwise stall or kick-back.

4.Once the blade has passed through the workpiece, bring the tool into the normal working position (the entire surface of the shoe in contact) and then con- tinue sawing along the line.

7. Care and maintenance

Unplug the supply cord from the mains socket.

7.1 Care of blades

Clean off dirt and dust deposits and protect your blades from corrosion by wiping them from time to time with an oil-soaked rag.

7.2Care of the tool

Keep the blade clamp clean.

The tool was lubricated adequately when it was man- ufactured. After long periods of heavy use it is rec- ommended that the tool is inspected at a Hilti repair center. This will increase the life expectancy of the tool and avoid unnecessary repair costs.

Repairs to the electrical section of the tool may be car- ried out only by a trained electrical specialist.

The outer casing of the tool is made from impact-resis- tant plastic. Sections of the grip are made from an elas- tomer material.

Never operate the tool when the ventilation slots are blocked. Clean the ventilation slots carefully using a dry

brush. Do not permit foreign objects to enter the interior of the tool. Clean the outside of the tool at regular intervals using a slightly damp cloth. Do not use a spray, steam pressure cleaning equipment or running water for cleaning. This may negatively affect the electrical safety of the tool. Always keep the grip surfaces of the tool free from oil and grease. Do not use cleaning agents which contain silicone.

7.3 Maintenance

Check all external parts of the tool for damage at regular intervals and check that all controls operate faultlessly. Do not operate the tool if parts are damaged or when the controls do not function faultlessly. If necessary, your electric tool should be repaired at a Hilti repair center.

Repairs to the electrical section of the tool may be car- ried out only by trained electrical specialists.

7.4 Checks after care and maintenance

After care and maintenance, check that the hand guard and contact shoe are fitted and that they function fault- lessly.

8. Blades and accessories

Saw blades

Pipe cutting adaptor

Side handle / Side handle adaptor

8

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Hilti WSR900-PE, WSR1250-PE, WSR1400-PE operating instructions Care and maintenance, Blades and accessories

WSR1250-PE, WSR900-PE, WSR1400-PE, WSR900 specifications

Hilti offers a range of advanced cordless reciprocating saws, including the WSR900, WSR1400-PE, WSR900-PE, and WSR1250-PE, each designed for professionals in construction and industrial sectors. These tools combine high-performance power with innovative technologies to meet the demanding needs of users.

The Hilti WSR900 is a lightweight and compact reciprocating saw, making it ideal for tight spaces or overhead applications. It features a brushless motor for increased efficiency and longer lifespan, providing consistent cutting power. The saw is designed with a tool-free blade change system, allowing users to switch blades quickly and easily, which enhances productivity on the job site. Additionally, the WSR900 offers an adjustable speed control feature that enables users to tailor the cutting speed to the material being worked on, from wood to metal.

The WSR1400-PE is a step up, featuring a more powerful 1,400-watt motor. This model is particularly effective for heavy-duty applications, such as demolition work or cutting through thick materials. It offers precise blade control with its integrated electronic speed control, allowing for versatility with different materials. This saw is ergonomically designed for comfort during extended use, reducing user fatigue.

On the other hand, the WSR900-PE combines the compactness of the WSR900 with the robust features of the PE line. It is equipped with an energy-efficient motor and features an integrated LED light to illuminate the cutting area, enhancing visibility in dim conditions. The WSR900-PE also includes vibration dampening technology which minimizes user fatigue and improves cutting accuracy.

Lastly, the WSR1250-PE offers the most power in the lineup at 1,250 watts, making it suited for the toughest applications. It features a dual speed setting that allows users to switch between fast cutting and precision cutting modes. This saw also incorporates Hilti's patented dust extraction system, which helps maintain a clean work environment and improves visibility. Its robust design ensures durability under rigorous working conditions.

In conclusion, the Hilti WSR series of reciprocating saws provides a comprehensive range of options suitable for various applications and user preferences. With features such as brushless motors, tool-free blade changes, ergonomic designs, and advanced dust extraction systems, these tools are engineered to enhance productivity, efficiency, and comfort in demanding work environments.