Hilti DSH 900-X Mode D'emploi Original page 45

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. All other adjustments
must be carried out by Hilti Service.
Tampering with the carburetor settings may cause damage to the engine.
▶ Clean the air filter. → page 35
▶ Allow the product to run until it reaches its normal operating temperature.
▶ Use a suitable flat screwdriver (tip width 4 mm/ ⁵/₃₂ ") and do not force the adjusting screw beyond its
intended adjustment range.
▶ Adjust the idling speed jet (T) so that the engine runs smoothly when idling but the cut-off wheel does
not begin to rotate.
7.7 Care and maintenance of the machine
To help ensure safe and reliable operation, use only genuine Hilti spare parts and consumables. Spare
parts, consumables and accessories approved by Hilti for your product can be found at your local
Hilti Center or online at: www.hilti.group
▶ Keep the product, especially its grip surfaces, clean and free from oil and grease.
▶ Do not use cleaning agents containing silicone.
▶ Clean the outer surfaces of the machine at regular intervals with a slightly damp cloth or a dry brush. Do
not use a spray, steam pressure cleaning equipment or running water for cleaning.
▶ Do not allow foreign objects to enter the interior of the product.
7.8 Maintenance
1. Check all external parts of the product and the accessories for damage at regular intervals and check
that all controls operate faultlessly.
2. Do not use the product if parts are damaged or if operating controls do not function faultlessly. Have the
product repaired by Hilti Service.
7.9 Checks after care and maintenance work
▶ After carrying out care and maintenance, check that all protective and safety devices are fitted and that
they function faultlessly.
8 Transport and storage
▶ Switch the product off before transporting it.
▶ Remove the cut-off wheel from the product after use. The cut-off wheel may suffer damage during
transport with the wheel fitted.
▶ Handle the cut-off wheel carefully and store it in accordance with the manufacturer's instructions.
▶ Always store and transport the product in an upright position, not lying on its side.
▶ Do not carry the saw trolley and the product together. Remove the water tank before transporting the
saw trolley.
▶ Do not lift the product and the saw trolley by crane. This is not permissible.
▶ Store the product in a secure place when not in use. Products which are not in use must be stored in a
dry, high place or locked away out of reach of children.
▶ When laying the product down, make sure that it stands securely.
▶ After use, allow the product to cool down before packing it away or placing a cover over it.
▶ Store gasoline and oil in a well-ventilated room in fuel containers that comply with regulations.
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