Seite 80
15.2 Extended service instruc-
tions
15.2.1 Replacing the shaft sealing
ring of the high-pressure
pump EH2009
To remedy any oil leakages on the shaft out-
put side of the high-pressure pump, the shaft
sealing ring must be replaced.
Dismantling
»
Close the fresh water water stop-
cock.
»
Switch-off unit by means of control
switch.
»
Open the drain screw (2) (pay atten-
tion to the sealing).
»
Let the oil drain and dispose accord-
ing to legal regulations.
»
Dismantle the water connection
lines of the high-pressure pump
»
Remove the 4 fixing screws (3) (2
screws are hidden in fig.) of the cou-
pling bell and separate the coupling
bell with the pump from the motor
(pull in the direction of the arrow in
the fig.)
»
Place the high-pressure pump with
the coupling bell on a suitable sur-
face.
»
Rotate pump shaft (9) until the later-
ally attached securing screw (8) is
visible through the slot (5) of the
bell-shaped top.
»
Loosen screw (8) and pull thecou-
pling piece (6) from the shaft (9).
»
Loosen the 4 screws (7) that hold
the coupling bell housing (4) from
the inside of the coupling bell and
remove the bell-shaped top from the
high-pressure pump.
2
Position of drain screw
3
4
5
7
6
High-pressure pump with
coupling bell on motor
6
9
8
Inner sight of the coupling bell with pump
shaft and coupling piece