Kärcher ARMADA BRC 40/22 C Manual page 27

Using the Torx 20 driver, remove the two screws hold-
ing the solenoid mounting bracket to the upper deck.
To remove the harness from the pivot, disconnect the
harness from the brush motor and solenoid valves.
Work each connector through the hole in the pivot
until the harness is removed.
Remove the screw holding the hose clamp on the black hose from the
pump. Depress the outer ring push the hose into the fitting then pull it
out. To separate the pivot from the upper deck, remove the 4 screws
holding it on.
It is critical to inspect the snap-ring groove in the pivot for
damage. If the upper lip is cracked or partially missing it the
pivot needs to be replace.
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