Question about Garden
Leak at handle where lance attaches. I think seal or washer is missing but have no manual.....any help??
numbers on bottom of machine reads
Bosch air 120 auto stop
typ 0 600 816 06nr 021529 76416
SOURCE: pressure washer
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.
Posted on Nov 05, 2008
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.
Posted on Apr 12, 2009
Hi Guys there isnt a problem with your machine you just need to pull the end of the spray lance out -the lumpy bit where the water exits the machine (it kinda clicks out)
Posted on Jun 27, 2008
SOURCE: pressure washer leaks
I had a Karcher water sprayer that did the same thing , the repair man told me it could be repaired IF he could get parts , guess what, he COULDNT get parts so i had to buy another one , the answer to your question is yes they can be fixed provided you take it somewhere that can get parts . hope this helps
ps i could have fixed it myself with the right part, its not a hard job to strip it and rebuild it
Posted on May 26, 2009
Most likely your air filter is plugged or dirty, or the crank case vent valve needs to be cleaned.if it still does it check that the oil level is at the full mark, if overfilled it would cause the same problem.
Posted on Jun 22, 2009
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