DSH 700 DSH 700-X DSH 900 DSH 900-X Printed: 17.05.
Printed: 17.05.
1 Information about the documentation 1.1 • • • About this documentation Read this documentation before initial operation or use. This is a prerequisite for safe, trouble-free handling and use of the product. Observe the safety instructions and warnings in this documentation and on the product. Always keep the operating instructions with the product and make sure that the operating instructions are with the product when it is given to other persons. 1.2 Explanation of symbols used 1.2.
1.3 Product-dependent symbols 1.3.
1.5 Product information products are designed for professional users and only trained, authorized personnel are permitted to operate, service and maintain the products. This personnel must be specifically informed about the possible hazards. The product and its ancillary equipment can present hazards if used incorrectly by untrained personnel or if used not in accordance with the intended use. The type designation and serial number are printed on the rating plate.
Wear protective gloves when changing the cutting disc. Touching the cutting disc presents a risk of injury (cuts or burns). Make sure fire extinguishers are available for use as there is a risk of fire due to flying sparks and the use of flammable fuel. Do not use reducing sleeves. Use of the wet cutting method is preferable in order to reduce the amount of dust produced when cutting mineral materials and asphalt. Avoid skin contact with the slurry created when using the wet cutting method.
▶ ▶ ▶ 2.5 ▶ ▶ ▶ ▶ ▶ ▶ ▶ ▶ ▶ ▶ ▶ ▶ 2.6 ▶ ▶ ▶ ▶ ▶ ▶ ▶ ▶ ▶ ▶ 2.7 Don’t refuel the product at the workplace area. When refueling, take care to avoid fuel spillage. Use a suitable funnel. Avoid inhaling gasoline vapors and exhaust fumes. Take care to ensure adequate ventilation. Don’t use the gasoline or other flammable liquids for cleaning. Cutting work using cutting discs Use only cutting discs with a rated maximum permissible speed that’s at least as high as the highest spindle speed.
6 English Printed: 17.05.
English Printed: 17.05.
3 Description 3.1 Product overview 3.1.1 Gasoline-powered cut-off saw 8 English Printed: 17.05.
@ ; = % & ( ) + § / : ∙ $ £ | Guard Water supply Front grip Water valve Pull start Fuel tank cap Choke lever / half-throttle lock (DSH 700 OR DSH 900) Throttle trigger Rear grip Type identification plate Fuel-level sight glass Guide rollers Cutting disc Clamping screw Clamping flange ¡ Q W E E R T Z U I O P Ü Spark plug connector Decompression valve Throttle safety grip Start/stop switch (DSH 700 OR DSH 900) Start/stop switch with integrated halfthrottle lock (DSH 700-X OR DSH 900-X) Primer bulb Water co
3.1.2 @ ; = % & 3.2 Saw trolley (accessory) Grip Throttle trigger Cutting depth adjustment Hold-down device Water tank ( ) + § Water connection Axial adjustment Throttle cable Machine cradle Intended use The product described is a gasoline-powered cut-off saw for the wet or dry cutting of asphalt, mineral construction materials or metals using diamond cutting discs or abrasive cutting discs. It can be held and guided by hand or mounted on a saw trolley.
3.3 Recommendations for use We recommend: • Use of the wet cutting method is preferable in order to reduce the amount of dust produced when cutting. By using the self-priming water pump (accessory) you can work without need for a water supply pipe. The water can be drawn, for example, directly from a container. • Do not cut right through the workpiece in one pass. Move the saw back and forward several times until it gradually reaches the desired cutting depth.
Cubic capacity Weight without cutting disc, fuel tank empty DSH 900 35/14" / DSH 900-X 35/14" DSH 900 40/16" / DSH 900-X 40/16" 26.5 lb (12.0 kg) 27.3 lb (12.4 kg) 5.3 in³ (87 cm³) Weight with saw trolley, without cutting disc, fuel 94.8 lb tank empty (43.0 kg) Rated power at 7500 rpm in accordance with ISO 7293 Maximum spindle speed Maximum cutting depth 4.2 5.8 hp (4.3 kW) 5,100 /min 4.9 in (125 mm) 5.3 in³ (87 cm³) 95.7 lb (43.4 kg) 5.8 hp (4.3 kW) 4,700 /min 5.
DANGER Risk of fire and explosion. Gasoline vapors are highly flammable. ▶ Never smoke while refueling. ▶ Don’t refuel the product at the area where you are working (move at least 3 meters (10 feet) away from the working area). ▶ Don’t refuel the product while the engine is running. Wait until the engine has cooled down. ▶ Make sure there are no naked flames or sparks that could ignite the gasoline vapors. ▶ Take care to avoid fuel spillage. If fuel is spilled, clean up the areas affected immediately.
5.2 Assembly and adjustment WARNING Risk of injury. Contact with the rotating cutting disc can lead to injury. Hot parts of the machine or a hot cutting disc may cause burning injuries. ▶ Before fitting or adjusting any parts of the product, make sure that the engine is switched off, that the cutting disc has completely stopped rotating and that the product has cooled down. ▶ Wear protective gloves. 5.2.1 Fitting a cutting disc WARNING Risk of injury and damage.
9. Insert the locking pin in the locking hole in the drive belt cover and turn the cutting disc until the locking pin engages. 10. Tighten the clamping screw securely (tightening torque: 25 Nm). 11. Remove the locking pin. After fitting a new cutting disc allow the product to run at full speed under no load for approx. 1 minute. 5.2.2 Adjusting the guard DANGER Risk of injury. Flying fragments or sparks could cause injury.
5.4 1. 2. 3. 4. 5. 6. 7. 8. Mounting the gasoline-powered saw on the saw trolley (accessory) Remove the water tank from the saw trolley. Move the cutting depth adjustment lever into the upper position. Open the hold-down device by releasing the screw knob. Fit the saw into the forward mount with the wheels as shown and swing the grip of the saw under the hold-down device. Secure the saw by tightening the screw knob. Fit the water tank after filling it. Adjust the grip to a convenient working height.
5.5 Fitting the water pump (accessory) 1. Release the three pump cover retaining screws, remove the parts and store the pump cover in a safe place. The pump cover must be fitted if the tool is used without the water pump. 2. Hold the water pump in position and turn the cutting disc slightly to bring the splines of water pump and clutch bell into alignment so that the splines engage. ◁ The position is keyed so it is not possible to position the pump incorrectly. 3.
6 Operation 6.1 Starting the engine DANGER Risk of asphyxiation. Carbon monoxide, unburned hydrocarbons and benzene in the exhaust gas may cause asphyxiation. ▶ Don’t work in closed rooms, trenches or pits and make sure the area is well ventilated. WARNING Risk of burning injury. The exhaust system gets extremely hot when the engine is running. It stays hot for a long time after the engine is switched off. ▶ Wear protective gloves and avoid touching the exhaust system.
▶ If the following conditions are met, also take this action: Conditions: The engine is hot. Pull the choke lever upwards and then push it back down again. ◁ This engages half throttle. The choke is not engaged. Check that the cutting disc is free to rotate. Position your right foot over the lower part of the rear grip. Pull the starter handle slowly with your right hand until resistance is felt. Pull the starter handle vigorously.
2. Check that the start/stop switch is functioning correctly. Move the start/stop switch to the “stop” position. 3. If the following equipment exists, also take this action: DSH 700 DSH 900 If the engine doesn’t stop, push the choke lever upwards. If the engine still doesn’t stop, pull the spark plug connector off the spark plug and bring the product to Hilti Service. 4. If the following equipment exists, also take this action: ▶ DSH 700-X DSH 900-X ▶ 6.
Reasons for the cutting disc stalling: • The cut is too deep. • The kerf closes (e.g. when cutting pipes or slabs). • The cutting disc is off-square in the kerf. • The cutting disc is unsuitable for the job (the cutting disc becomes clogged). • The cutting disc is inserted too quickly into an existing kerf. The hazardous situations that result from stalling differ, depending on the working position. • • • Forward pull can occur when a horizontal cut is being made (e.g. in the ground).
7.1 Maintenance table Before use Check that the tool is complete, in perfect condition and free of leaks. Have it repaired if necessary. X Check that the controls function correctly. Have repairs carried out if necessary. X Check for dirt and foreign matter. Clean if necessary. Check that the cutting disc is in perfect condition. Replace if necessary. Check that all externally accessible nuts and screws are securely tightened. Check that the fuel filter is clean. Replace it if necessary.
7.3 Replacing a broken starter cord CAUTION Risk of damage. The housing may suffer damage if the starter cord is too short. ▶ Never continue to use a broken starter cord. Replace it immediately. 1. Unscrew the three securing screws and remove the starter assembly. 2. Remove the remaining pieces of the starter cord from the spool and the starter handle. 3. Make a secure knot in the end of the replacement starter cord and then pass the free end of the cord through the hole in the spool from above. 4.
1. Remove the cap from the fuel tank. 2. Pull the fuel filter out of the fuel tank. 3. Check the condition of the fuel filter. ◁ Replace the fuel filter if it is very dirty or clogged. 4. Slide back the clip on the hose and remove the dirty fuel filter. 5. Fit a new fuel filter and secure it with the clip on the hose. 6. Push the fuel filter back into the fuel tank. 7. Close the fuel tank. 7.5 Cleaning the spark plug, setting the spark plug gap or replacing the spark plug CAUTION Risk of injury.
7. Pull the starter cord (press the decompression valve first). ◁ An ignition spark must now be clearly visible. 8. Use the spark plug wrench to screw the spark plug into the cylinder (tightening torque: 12 Nm). 9. Fit the ignition cable connector to the spark plug. 7.6 Adjusting the carburetor The carburetor of this product has been factory set for optimum performance and sealed to prevent tampering (jets H and L). The idling speed of the machine (jet T) may be adjusted by the user.
8 Transport and storage 8.1 Transportation in a vehicle DANGER Risk of fire and explosion. If the product tips over during transport, fuel may run out of the fuel tank. ▶ Empty the product’s fuel tank completely before packing and shipping it. ▶ Transport the product, as far as possible, in its original packaging. WARNING Fire hazard. Hot parts of the machine could ignite material lying about in the surrounding area.
Trouble or fault The saw doesn’t start or is difficult to start. Possible cause DSH 700 Action to be taken ▶ DSH 900 The engine is flooded (spark plug wet). DSH 700-X ▶ ▶ Remove the spark plug, dry the plug and allow the cylinder to dry out. ▶ Empty the fuel tank and flush out the tank and fuel supply line. Fill the fuel tank with the correct fuel. DSH 900-X The engine is flooded (spark plug wet). Wrong fuel mixture. ▶ Air in the fuel line (no fuel reaching the carburetor).
Trouble or fault Low engine power / poor cutting performance Possible cause Drive belt or cutting disc slips. Action to be taken ▶ ▶ Cutting disc rotates while the engine is idling. Cutting disc doesn’t rotate. Starter assembly doesn’t work. 10 Check that the cutting disc is clamped securely. Have the product repaired by Hilti Service. Engine compression is too low. ▶ The product is used at an altitude greater than 1500 meters above sea level. ▶ Have the carburetor adjusted by Hilti Service.
condition exists, Hilti will repair at no cost to you. Expenses covered under warranty include diagnosis, parts and labor. Manufacturer’s warranty coverage All 2001 and later small non-road engines are warranted to meet the applicable EPA and CARB requirements for two years. If any emission related part on your engine (as listed above) is defective, the part will be repaired or replaced by Hilti.
Hilti Inc. 7250 Dallas Parkway, Suite 1000 Plano, TX 75024 CS.InboundUS@hilti.com In Canada: 800.343.4458 Hilti (Canada) Corporation 2360 Meadowpine Blvd Mississauga, ON L5N 6S2 CanadaSalesSupport.English@hilti.com CanadaSalesSupport.French@hilti.com This constitutes Hilti’s entire obligation with regard to warranty and supersedes all prior or contemporaneous comments and oral or written agreements concerning warranties. 30 English Printed: 17.05.
Printed: 17.05.
Printed: 17.05.
Printed: 17.05.
Hilti = registered trademark of Hilti Corp., Schaan Printed: 17.05.
