Kärcher 570 - Page 19

PumD defects
Karcher
570
Pump runs very noisily
1. Piston jammed, swash plate worn
Remove the cylinder head.
Use the assembly screws to pull off the
housing.
Check the pistons for wear and, if necessa
-
ry, replace the pistons and springs.
Carefully lever out the oil seal rings with a
screwdriver.
Fit new oil seal rings without applying
grease or oil.
Checkthe swash plate forwear and replace
if worn.
The motor is generally replaced complete
with the swash plate.
The swash plate can only be removed
by
pressing the motor shaft out of it in the
direction of the motor cooling fan with a
hand
- lever press.
2. Motor fan defective
Pull
ofl the motor cooling fan using the
special tool.
Press a new fan onto the motor shaft.
Fit the fan cowling.