
15
Maintenance and Service
7.1 Honda Handbook reference
Please refer to the accompanying Honda Manual regarding the correct handling of the high-pressure
pump WH 20X. Both this manual and the manual from Honda must be read and completely
understood. Your safety depends on it!
7.2 Cleaning the filter elements
Turn off the pump
Close the main valve A
Open vent valve B
Open the drain valve D (emptying)
Open the housing the cover
Close the drain valve D as soon as the filter elements are standing in
water by 1/6 only.
Put the cleaning brush over the filter element and move it
up and down 6-8 times and, at the same time, flush with
water from the pump (For this process, water must not be
filtered). Repeat the process as needed until the surface
of the filter element is clean. In addition to the dirt
particles that will be removed, some of the ceramic will
also be rubbed off in the process. That is completely
normal and desirable. In that way, you will be assured
that the filter element has totally new filter characteristics
when cleaning is completed.
Repeat the above procedure on all filter elements.