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HD 1050
Basic settings
9
B. Basic settings
1. Checking the pump delivery
Fit the shut off valve (special tool) to the high
pressure outlet, connect the high pressure hose
(without hand gun and spray lance).
Start the cleaner.
Close the shutoff valve as far as necessary to
bring the cleaner up to working pressure (see
technical data) and measure the quantity of
water delivered into a suitable container in litres
per minute.
2. Checking the relief valve opening
pressure
Connect the standard equipment to the cleaner
(Servopress hand gun, spray lance, nozzle and
hose).
Start the cleaner
Set the Servopress hand gun to Position 1
Read the pressure on the pressure gauge.
Required pressure: (see technical data)
3. Adjusting the relief valve
If the pressure is incorrect, it should be adjusted
to bring it to the required pressure.
Adjustment is best done when the cleaner is not
under pressure.
Loosen the lock nut.
Adjust by turning the adjusting nut. If need be,
hold the rod with a screwdriver.
To increase the pressure, turn the nut clockwise
(increase the spring pressure). To reduce the
pressure, turn the nut counterclockwise (reduce
the spring pressure).
Summary of Contents for HD 1050 B
Page 1: ...Service Handbook HD 1050 5 905 032 07 97...
Page 26: ...Notes HD 1050 26...
Page 27: ...HD 1050 Notes 27...