Will Bosch pressure washer lance fit in karcher pressure washer

SOURCE: pressure washer

Dear Davidpaulson,
There are many reasons why there is no pressure. The simplest one is try a new lance. The lance you say it is not blocked, but it could have a wider hole with wear and tear.
The second most possible reason is, faulty valves. The suction valves are the most that give low pressure when they are faulty. To check the suction valves, put on the machine in the normal way and as it is working, disconnect the water supply. Than check if air or water is blowing out from the inlet. This is not 100% but you can have a picture of the function of the suction valves.
On the other hand if you do this exercise with the outlet, after removing the gun, you can check for the delivery valves. If you feel suction at the outlet, than the delivery valves can be faulty.
If all is correct, than there must be a fault in the swash plate. This could become loose and so the pistons will stop moving. Also another fault could be broken springs.
Also if the machine is leaking, the high pressure and low pressure seals are damaged. This also lowers pressure.
Other faults are related to the famous spill valve. Also faults could be to internal water leakages, due to corrosion in heads. Finaly I like to add that a faulty electric motor, could also not deliver enough rotation and power, and this also reduces pressure. This could be rewinded or changed for a new one.
Regards,
MG.

SOURCE: Karcher pressure washer won't start

Dear ralph_birtwi,
Most pressure washers when their gun is released, the machine stops automaticaly. This is done ny means of a control valve. When the gun is closed...pressure is built and the control valve moves and switches a micro switch off. In your case the micro switch is still closed in off position. Now this happens if a machine is left and stored with pressure in it., This control valve could get jammed and leaving the micro switch in off position. It could also stay in off position by sticking, due to incorrect chemical.
So the control valve or even called spill valve, must be renewed.
Sometimes a little lubrication with the right type of silicon grease will get the control valve working again. This job is sometimes delicate and better done by a qualified technician.
Regards,
fulltech.

SOURCE: When I switch my karcher k4.97 washer on it just

you have an internal crack in the out let head of the machine very comon in thease machine and not expencive to fix

SOURCE: Unloader Valve - Karcher Pressure Washer

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

SOURCE: karcher pressure washer leaking oil

Usually electric pressure washers only have oil on the pump, so its very likely that you will find the problem there. I'd say check all the pump seals and if that doesnt solve the problem, you can check to see if all bolts are tight when you close the pump back.
If by any chance you are looking for a new machine and/or parts for your machine, log in to www.roncoshop.com where you will be able to find pretty much anything for your preassure washer.