Swash Plate/Shaft Sealing Ring/Motor Bearing Defective; Troubleshooting And Basic Settings - Kärcher HD 1090 Service Handbook

Troubleshooting and basic settings

Swash plate/shaft sealing ring/motor bearing defective

Removing swash plate
Shaft sealing ring dismantled
Removing bearing ring (heating)
Swash plate defective
– Unscrew the swash plate retaining screw.
– With an extraction tool (special tool), pull the
swash plate off the motor shaft.
– Remove the bearing ring from the swash pla-
te.
– Press a new swash plate onto the bearing
ring.
– Assemble all parts in the reverse order of
disassembly.
Shaft sealing ring defective
– Remove swash plate as described above.
– Remove motor fan wheel and rear housing
cover.
– Pull out the motor rotor from the back.
– Knock out the shaft sealing ring frontwards.
– Install a new shaft sealing ring.
– Assemble all parts in the reverse order.
Motor bearing defective
– Dismantle all parts as described above.
– Remove the unit switch.
– Heat the motor housing evenly in the region of
the bearing ring until the bearing ring falls out.
– Insert a new cold bearing ring while the hou-
sing is still hot.
– Assemble all parts in the reverse order.
– Pay attention to the torque, oil quantity, type
and viscosity (see technical data).
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