Cleaning And Maintenance - Scheppach HWW900 Original Bedienungsanleitung

The printing of the type designation on the connection cable is mandatory. For sin-
gle-phase AC motors, we recommend a fuse rating of 16A (C) or 16A (K) for machines
with a high starting current (starting from 3000 watts)!
AC motor 230 V~/ 50 Hz
Mains voltage 230 V~ / 50 Hz.
The mains connection and the extension cable have to be three-core cables = P + N +
SL. - (1/N/PE). Extension cables up tp 25m long must have a minimum cross-section of 1.5
mm². Mains fuse protection is 16 A maximum.

10. Cleaning and Maintenance

Attention!
Only carry out maintenance, cleaning and adjustment work when the mains plug is pulled
out. We recommend that you clean the device directly after every use.
Clean the device at regular intervals using a damp cloth and a little soft soap.
Do not use any cleaning products or solvents - they could attack the plastic parts of the
universal machine stand. Make sure that no water can penetrate the device interior.
• The pump is largely maintenance-free. However, for a long service life, we recommend
regular checking and care.
• Before extended periods of inactivity or through the winter, the pump should be thorough-
ly flushed through with water, emptied completely and then stored dry.
• To empty the pump housing, loosen the water drain screw (5) and tilt the pump slightly.
• If there is a risk of frost the pump must be completely emptied.
• After longer periods of storage check the pump by switching on/off briefly in order to check
that the rotor turns normally.
• In the event of the pump being jammed connect the pressure line to the water supply line
and remove the suction hose. Open the water supply line. Switch the pump on for ca. two
seconds several times. This method rectifies blockages in most cases.
• To clean the pre-filter (9), unscrew the pre-filter cap (8) and remove the filter unit. Clean
the pre-filter with warm water.
• The pressure in the pressure vessel should be approx. 1.5 bar max. If the air pressure
is too low, it should be increased again. To do this unscrew the valve cover (10) on the
container and add the missing pressure with a tyre inflator gauge via the valve (11). Then
screw the valve cover back on.
Connections and repairs
Connections and repairs of electrical equipment may only be carried out by an electrician.
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