Not meant for the IMPORTANT SAFETY INSTRUC-3 vacuum of dust. TIONS – The appliance is not intended to vacu- Start up 4 um up larger amounts of fluids from hor- Description of the Appliance 4 izontal surfaces, such as from a tipped Charge the battery 5 drinking glass (max. 0,8 oz.). Start working 5 – Only use this appliance with conven- Interrupting the work 5 tional window cleaners (no spirit, no Emptying the reservoir during opera-5 foam cleaners). tion– Please use this appliance only with ac-

Therefore carry out the adjustment at the pressure control valve (14) and at the concentrate control valve (13) only in small steps, and wait until checking the respective effect. (1) Flow of drinking water has decreased from _____ to _____ l/h Read off the amount of drinking water at the flow meter (42) and compare with the value taken when starting operation (see operational start-up record). If the flow of drinking water has decreased to _____ l/h , the following fine adjustment is to be carr

This is why we offer all servicing engineers regular basic training and further qualification courses for the whole product range. In addition, we compile service manuals for the main units which can be used as instructions to start with and as a reference work later on. In addition, we issue regular Service Information about on-going developments of our products. The texts and pictures can only be copied and duplicated or passed on to third parties after obtaining explicit permission from: ALFR

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– Slacken: loosen adjusting sleeve (6) and screw nut (7) against it. • For coupling cables with load- removal spring (8): Before making an adjustment the spring must be unhooked and afterwards hooked on again. The coupling cable is correctly adjusted when the spring expands 2 to 3 cm when coupling takes place. – Tighten: Screw lock-nut (9) upwards. – Slacken: Screw lock-nut (9) downwards. Checking the drive system (STH 5.56, STH 8.66, STH 10.66 C) Figure 13 Caution Risk of damage to the machine

• To reduce the travel speed, press down on the side handle. Working on slopes ! Risk of injury from machine tipping over Work slowly and carefully, especially when you change direction. Guide the machine up or down the slope, not crosswise to it. Watch out for obstacles, do not work near inclines. Do not use the machine on slopes with a gradient greater than 20 %. Tips on clearing snow • Clear snow immediately after it has stopped snowing; later on, the underneath layer will ice up and will mak

• Tip the machine forwards again, check the setting and repeat as necessary. Adjust the skids (STH 5.56, STH 8.66, STH 10.66 C) Figure 7 With the skids (1), the distance between the ground and the clearing plate (5) can be set in such a way that no parts of the ground (e.g. earth or stones) can be taken up. • (STH 10.66 C) Set setting lever (Figure 4, item 1) to position II. • Loosen nuts (2) on both sides of the machine. • Adjust skids to conform to the ground conditions: – lower for uneven or

Store these instructions in a safe place for future use. For whom are these instructions intended • All users Users are persons who have received instruction on how the system functions, operators and trained specialists. • Trained specialists Trained specialists are persons who are professionally qualified to install and commission this type of system. Environmental protection Please dispose of the packaging in an environmentally friendly way. The packaging materials are recyclable. Please do n

3 Safety instructions.................................... 4 Preparing the Appliance........................... 5 Quick Reference ...................................... 6 Operation ................................................. 7 How to Use the Accessories....................9 Maintenance and care ........................... 11 Troubleshooting ..................................... 12 Helpline .................................................. 13 Technical specifications .......................