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How do I clean the inlet filter on karcher 2.87 pressure washer?

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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Karcher Power Washer Problem

I had the same problem with my Karcher. The recall was lifted Aug. 0f 2007. Tried numerous people at Karcher....head of Customer Service, vice president, etc. No one returns telephone calls not even cutomer service....poor, very poor customer service. Thinking about calling Germany.

Posted on Jun 14, 2008

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SOURCE: need help getting to an cleaning stuck unloader

The cart body makes this process a little confining but it can be carried out without removing the pump from the motor.

Diagram courtesy of: pressureparts.gif


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  1. Refer to assembly 9 in the diagram. Remove the splash cup by working the push-on nut off the top of the cup.
  2. Remove two Torx fasteners (13) and twist the nylon valve retainer gently while pulling up to remove it. Be aware of the small parts under the retainer.
  3. The objective is to get the valve (12) out of the bore (A). Connect the hose and wand to the pump, make sure the wand valve is closed. Connect the water supply to the pump and turn on the water flow.
  4. Place a shop towel over the valve bore and with the throttle in the off position, pull the start cord briskly several times to see if enough pressure builds to pop the valve out of the bore. If not, set the throttle to low and start the engine. Unless the valve bore is really corroded, this should pop the valve out.
  5. If this process fails, you may have to unmount the pump and employ a more brutal approach that will likely require a new valve.
I have worked on my washer for the last 2-3 years to keep it going but I've opted to replace the pump this year. My replacement is an "AR RMV2G25D" (~$170) .

Posted on Jun 04, 2009

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SOURCE: clean and unloader valve on Karcher hd3500

Hi:
Cleaning it is not enough. You need to make sure the o-rings are in good shape and grease it with a very very good waterproof grease. Here is a schematic of the pump. The unloader is parts 7 to 13 on D-2

Posted on Sep 10, 2009

  • 1 Answer

SOURCE: Unloader Valve - Karcher Pressure Washer

where is the unloader valve locaed on a Briggs Stratton pressure washer?

Posted on Oct 03, 2009

  • 1 Answer

SOURCE: my karcher washer has lost

The lance hose that attaches to the pressure washer keeps coming off when the power to the machine is turned on, i've only used this product four times since new in January this year.

Posted on Sep 08, 2010

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1 Answer

Karcher k 5.700 very low presure and how to fix it thanks


1 water inlet filter clean ?? not limed or ??
2 nozzle clean.
3 pressure control valve properly screwed
Sometimes water hoses are provided with a slot at the hose connection with an internal water seal, which is the wrong way to the water tap instead of to the machine

Jan 23, 2016 | Karcher Garden

1 Answer

I have no pressure and the pump surges when i release the trigger on my electric karcher modle k 2.360


If you have a Karcher then you should always post your machines barcode.

Because you have the low pressure and pulse this will be the valve block. Your machine has 3 piston and each has 2 valves (inlet and outlet). Because you dont have the barcode, i cant be sure if you will buy a valve kit of 6 valves or a pre-assembled manifold block.

it could be this machine and spares :
http://www.sparesgiant.com/cleaning-equipment/pressure-washers/karcher/k-series-parts/k2-range/k2-36m16724300/

The karcher barcode is on a silver sticker and is usually 15 digits long. Example 156987400000123 is actually model 1.569-874.0 and serial number 00123....

Sep 01, 2013 | Karcher K238CCK 1600 PSI 13 GPM Electric...

2 Answers

IT HAS PRESSURE BUT IT PULSATES INSTEAD OF STEADY SPRAY


I have same model with same problem. Tried the easy fixes:
unloader valve lube and clean, inlet water sufficient, and nozzles and hose are fine. Broke down pump and called for parts (about $50 for 3 inlet valves and some seals) hopefully this will fix it. Mine has been used in my business pretty hard for a few years, so not bad.
Joebro

Jun 11, 2011 | Karcher G 2600 VH Gas Pressure Washer

3 Answers

I have a Karcher Pressure and cannot get any pressure out of the unit.


karcher K3.97 MB when connected up to tap and switched on pressure poor and motor seems slow cleaned hose end, and filter looks clean

Apr 19, 2011 | Karcher Garden

1 Answer

I have a pressure washer that runs but no pressure, I was using it at the time and all of a sudden no more pressure.


when running your pressure washer, if your running it at home make sure other appliances are not running also like a dishwasher or washing machine. when their pulling water it decreases the volume of water going to your pressure washer. if this is not the case. check the inlet from the water hose to the pressure washer, make sure the filter is clean. also the tips on the wand, make sure there is no hardwater build up. good luck!

Nov 22, 2010 | Karcher 2500 PSI Pressure Washer

1 Answer

Motor running, water supply adequate but when


clean whole water supply and outlet from all debris, clean inlet filter as well. connect water and pressurise washer, pull trigger and wait about 3sec for pump to activate, if pump do not activate adn you have pressure from nozzle as it will be from main, this determines pressure sensor (it is extremelly rare for pump itself) is damaged.

check if you have still warranty,this will qualify as warranty repair, if warranty is expired, pressure sensor need to be replaced.

if you find my advice useful, please do not hesitate to leave your remarks and vote for me, thanx!

Jul 31, 2010 | Karcher 1750 Psi Elec Pressure Washer

1 Answer

I have a k7.91 pressure washer the motor runs but stops or pulses


This sounds like a problem with the pressure sensor which is located on the water inlet side of the pump. This switches the power to the motor when there is sufficient inlet pressure and water flow. This pressure switch can get partially siezed up, and not operate correctly.

You will need to dismatle the unit and identify the pressure switch, dismantle it and lubricate it with silicone grease.

Feb 28, 2010 | Karcher PSI Electric Pressure Washer

1 Answer

Clean and unloader valve on Karcher hd3500 pressure washer -intermittent pressure on and off. Cleaned inlet screen. Think unloader valve is is under pressure knob? Will cleaning help?


Hi:
Cleaning it is not enough. You need to make sure the o-rings are in good shape and grease it with a very very good waterproof grease. Here is a schematic of the pump. The unloader is parts 7 to 13 on D-2

Sep 08, 2009 | Karcher Garden

1 Answer

My Karcher high pressure sprayer is delivering intermitant pressure.Every 15 seconds or so it developes high pressure for only about two seconds. Why is it not delivering a constant high pressure stream?


Check that the water supply is constant , it sounds like the pump might be pushing out more water than can be delivered , or it could be a dirty inlet filter

May 17, 2009 | Karcher PSI Electric Pressure Washer

1 Answer

Kracher k3 97, low pressure


your pressure relief valve is stuck open. try adjusting the nut shaped stem on the front of the valve to see if you can unstick it. if not you'll have to take apart and clean.

Jul 13, 2008 | Karcher 2500 PSI Pressure Washer

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