24
English 5.906-565.0 Rev. 00 (12/12)
Disconnect the water supply hose from the cylin-
der head.
(See "Dismantling the cylinder head".)
Remove the pressure switch.
(See "Removing the pressure switch".)
Note:
If the pump is to be disassembled afterwards, loosen
all necessary screws prior to disconnecting the pump
from the motor.
Loosen 4 screws.
Pull the pump off the motor.
1 Seal
2 Fitting key
Dismount cylinder head (see "Dismounting the
cylinder head").
Place an oilpan underneath the pump.
Loosen 4 screws.
Remove the lid.
Drain and collect the oil.
Note:
If chips of destroyed pump components are visible in
the crankshaft casing or in the oil, the pump is dam-
aged and a repair no longer reasonable. In this case,
replace the entire crank drive.
Dismounting the ceramic piston (see "Replacing
the ceramic piston").
Remove copper discs.
Disconnect the pump from the motor (see "Dis-
mantling the pump")
7.15 Dismantling the pump
7.16 Replacing the oil seals
7.16.1Draining the oil
7.16.2Removing the ceramic piston
