Installing The Crankshaft - Kärcher HD 6/15-4 Service Manual


Clean and check the gasket seat.

Place the oil seal on the installation mandrel (spe-
cial tool) and moisten with water. Do not use oil or
grease.

Drive the oil seal into the drilled hole by means of
the installation mandrel.

Lightly lubricate the piston and piston rod bearing.

Insert the piston into the crankshaft casing and
completely push towards the cylinder head.

Check the running surface of the crankshaft cas-
ing (2x bearing positions, 3x piston rods).

7.16.6Installing the crankshaft

Caution
Risk of damage for the ball bearing. When pressing
the crankshaft in, support the ball bearing at the inner
and outer ring.

Insert the crankshaft in the crankshaft casing and
press it in in small steps. Between every step, en-
sure that the piston rods are not jammed or dam-
aged by the crankshaft.
7.16.7Disassembling and assembling the shaft
seal
Replace needle bearing (if necessary):

Heat the flange - the needle bearing will fall out.

Press new needle bearing all the way in.
Caution
Risk of damage for the gasket seat. Carefully use a
screwdriver when dismantling the gasket.

Push the shaft seal ring out of the flange.

Clean and check the gasket seat.

Moisten the new sealing ring with water and press
it in.
English 5.906-565.0 Rev. 00 (12/12)
27