Comet Blue Professional K 250 TSR Manuel D'instruction page 27

ADDITIONAL WARNINGS FOR MACHINES WITH COMBUSTION ENGINE
• To supply the maximum power, the combustion engine must be run-in for at least 10 hours
at a load less than 15÷20% in relation to the maximum performance of the machine.
• The maximum power that the internal combustion engine can supply diminishes as
the altitude and ambient temperature increase (there is an approx drop of 3.5% every
305 m/1000 ft above sea level and 1% every 5.6 °C/42 °F over 16 °C/61 °F). If the machine is
used at high altitudes or high ambient temperatures, refer to the instruction manual of the
combustion engine for any precautions to be taken.
• Ideally the engine should be left to warm up for a few minutes before expecting the maximum
performance of the machine.
• Do not leave the high-pressure water cleaner in by-pass for more than three minutes (gun
closed) unless an optional thermostatic valve has been installed by a QUALIFIED TECHNICIAN.
Nevertheless, remember that the thermostatic valve can only be installed if the machine will
always operate with a mains water supply.
ADDITIONAL PRECAUTIONS FOR HOT WATER FED MACHINES
• If the machine is used at an altitude over 1000 m/3281 ft, contact a QUALIFIED TECHNICIAN
for a control and to make any necessary adjustments to the combustion.
• If diesel fuel for agricultural purposes or for heating is used or if it is dirty it will cause excessive
deposits on the burner thereby compromising its correct functioning.
• Before proceeding with the "STOP" procedure after use, run the machine with the burner
off for a few minutes in order to cool the delivery circuit.
• To avoid malfunctions on machines equipped with high-pressure detergent distribution, keep
the detergent adjustment knob FULLY closed, with the tank empty.
• FULLY close the detergent adjustment knob when finished with the detergent.
• To prevent problems with the metering pump, in the absence of descaling fluid, fill the related
tank with water.
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