Karcher Pressure Washers 15209900 Pump Removal

Introduction

Prerequisite guide only! This guide shows how to remove the pump for the Karcher 15209900 electric pressure washer.

Part of this procedure requires removing the pump assembly, with is partially filled with oil. You must refill the oil during reassembly. The part number for the oil is 6.288-219.0.

What you need

Step 1 Set the motor upright

Karcher Pressure Washers 15209900 Pump Removal, Set the motor upright: step 1, image 1 of 1

Set the motor assembly upright with the pump assembly on the top.
The pump assembly is filled with oil. This step prevents the oil from spilling out when you remove the pump.

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Step 2 Loosen the pump assembly

Karcher Pressure Washers 15209900 Pump Removal, Loosen the pump assembly: step 2, image 1 of 1

Use a 13mm socket to remove the four long bolts holding the pump assembly to the motor.
Re-assembly tip: The bolts hold the pump under pressure against the motor assembly. During reassembly, gradually tighten the bolts in a cross pattern.

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Step 3 Remove the pump assembly

Karcher Pressure Washers 15209900 Pump Removal, Remove the pump assembly: step 3, image 1 of 2

Karcher Pressure Washers 15209900 Pump Removal, Remove the pump assembly: step 3, image 2 of 2

Lift the pump assembly off of the motor.

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Step 4 Remove the pump oil

Karcher Pressure Washers 15209900 Pump Removal, Remove the pump oil: step 4, image 1 of 1

Pour the pump oil out of the motor housing. If the oil looks serviceable, save it for reassembly.
Reassembly tip: The piston assembly is sealed with oil, and the motor housing acts as an oil pan. Before you attach the pump to the motor, fill the piston well with oil, up to the bearing plate.