|
Pressure
Washers by | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
If you can not find what you need "off the shelf" give us a call and we will provide a quote and build a system that will work for you.
|
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Problem | Cause | Solution |
| Low Pressure | ||
| return to top | Worn or incorrect nozzle | Replace with nozzle of correct size |
| Unloader is by-passing | Check for seal at ball and seat Check for broken components Adjust unloader for pressure increase | |
| Insufficient inlet supply Ensure water is on | Check for correct hose I.D. Check for plugged screen/filter Purge hose for gravity-fed systems | |
| Fouled or dirty valves | Check and replace if needed | |
| Plunger(s) not moving or seized | Fix or replace broken or disconnected bearing(s) / connecting rod(s) | |
| Belt slippage | Tighten or replace with correct belt | |
| Excessive water leakage | Reseal or replace damaged fittings and hoses | |
| No Pressure | ||
| return to top | Pump not turning | Check for key in shaft. Replace or install if needed or belt slippage. Tighten or replace with correct belt |
| Inlet valves damaged or broken | Check for damage and replace if needed | |
| No nozzle | Install correct size nozzle | |
| Water spraying out in all direction around the spray tip | Replace the coupler O Ring | |
| High Spike Pressure | ||
| return to top | Unloader over-adjusted | Back unloader adjustment out |
| Unloader by-passing | Check ball and seat and replace if necessary | |
| RPM on motor is too low | Adjust RPM to 3550 without load | |
| Throttle control valve | Check operation and ensure unit is getting to 3550 RPM | |
| Intermittent or No By-Pass (Cycling) | ||
| return to top | No by-pass valve | Install correct components |
| By-pass valve not sealing | Check for wear and dirt. Clean and replace as necessary | |
| Leak in discharge system | Check hose, couplings and gun for water leaks | |
| Noisy/Rough Operation | Restricted inlet or air entering the inlet plumbing | Check inlet plumbing for water or air leaks Check inlet screen/filter Clean and replace if needed |
| return to top | Stuck inlet or discharge valves | Check valves and replace if needed |
| Mechanical damage in crankcase | Check plungers, connecting rods, bearings and crankshaft for damage, and replace if needed | |
| Inlet water is too hot | Reduce temperature below 63°C (145°F) | |
| Pressure Drops After Period of Use | ||
| return to top | Nozzle is clogged | Clean nozzle or replace |
| Worn packings | Check and replace if needed | |
| Dirt in unloader | Disassemble and clean. Replace any damaged parts | |
| Valves are clogged with dirt or broken springs | Clean valves or replace | |
| Water Leaking from Under Manifold | ||
| return to top | Worn Packings | Check and install new seals as needed |
| Loose fittings | Seal or tighten fittings | |
| Scored plungers | Check and replace if needed | |
| Oil Leaking Between Crankcase and Manifold | ||
| return to top | Worn oil Seals | Check and install new seals if needed |
| Worn or scored plungers | Replace if needed | |
| Unmasked size on spacer rings | Check rings with a straight-edge and replace if needed | |
| Plungers running sideways | Check for undue stress on plungers | |
| Overflowing oil | Look for traces of oil on top Check sight glass for overfull | |
| Oil Leaking From Underside of Crankshaft | ||
| return to top | Worn crankshaft seal or improperly installed O-Ring / oil seal | Remove oil seal and replace damaged O-Ring / oil seal |
| Bad bearing | Check and replace as needed | |
| Loose cracked drain plug/sight glass | Check and tighten or replace | |
|
Pump overfilled with oil |
Check oil level. If too full oil will spit out filler cap and run down side of pump, looking like a leak from underneath | |
| Water in the Oil (Milky) | ||
| return to top | High humidity | Change pump oil. |
| High inlet pressure | Test inlet pressure and install regulator if needed | |
| Worn Seals | Check oil seals for wear and replace seals as needed | |
| Water splashing on top of pump | Operate under cover if rain Avoid spraying top of pump. Check for water entering filler cap | |
| Plungers worn | Check for scoring and replace if needed | |
| Frequent or Premature Failure of Packings | ||
| return to top | Scored plungers | Check and replace as needed |
| High inlet pressure | Reduce pressure to pump | |
| High RPM | Adjust RPM to specifications | |
| Excessive temperature | Ensure pumped fluids are not above specification | |
| Unloader is over-adjusted | Re-adjust unloader to specifications | |
| Abrasive material in pumped fluids | install proper filter on water supply | |
| Running pump dry | Ensure adequate water supply. Do not run pump without wate | |
| Improper operation of Chemical Injector (Downstream) | ||
| return to top | Wrong nozzle | Ensure soap nozzle is used |
| Adjustment closed | Open metering valve | |
| Plugged orifice in body | Remove and clean or soak in warm water | |
| Plugged filter | Replace or soak in water water to clean | |
| Ball and cone spring damaged or missing | Remove barb and clean or replace and install | |
| Pulsation (Lower Pressure) | ||
| return to top | Fouled or dirty inlet or dishcharge valves | Remove dirt from valves and manifold. Replace if needed |
| Damaged low pressure seals (Triplex) | Replace damaged seals Check for scoring on plungers | |
| Plunger(s) not moving | Fix or replace broken or disconnected bearing(s)/connecting rod(s) | |
| Faulty pulsation damper | Check precharge, recharge if low Replace if needed | |
| No key in keyway and friction causes pump to turn slightly | Check to ensure key is properly located | |
| No Soap (Chemical Injector Problem) | ||
| return to top | Can't get soap to come out of the wand | Wrong nozzle tip is being used Change tip to black soap tip. |
Incorrect chemical injector metering valve position |
Make sure the chemical injector metering valve (brass valve located on the pump where the clear vinyl tubing is attached) is in the middle position. Turning the valve all the way to the right "clockwise" turns the soap off - Turning the valve "counter clockwise" opens the valve to full open position. | |
| Chemical injector hose is not submerged | Make sure chemical injector hose is submerged into liquid soap or water and try the test again. | |
| Faulty gun | Turn everything off and remove wand. Turn water back on and test for soap. If there is soap the gun need to be replaced. | |
| Problem with injector | f the injector used to work but has recently stopped after not using the machine for a while you may have the ball stuck shut with dried soap (from last usage). In this case, remove the metering valve and carefully remove the ball and spring inside for a cleaning. After cleaning, re-install (spring goes first into injector body on pump with ball in metering valve). If this does not correct the problem replace complete chemical injector assembly. | |
| No Hot Water (STYLE WITH ENGINE COIL GENERATING POWER) | ||
| return to top |
Burner will not fire. Fuel is pumping into the burner but will not ignite. |
It is advisable to seek a trained technician
to correct burner problems. (Unit has a 12V burner system that relies on a good battery) Here are some troubleshooting types to narrow this problem down onsite: Test unit with good battery / use a jumper cable to attach a car battery (for test purposes only) If burner fires replace the battery If still no fire / bypass the adjustable thermostat switch (round knob located at end plate of machine) by removing the end plate and jumping the connector pins - re-test. Leave the jumper on and go to next step. If still no fire / bypass the pressure switch by taking the cover off it and pushing the plunger in (simulating pressure activation) If still no fire test the electrodes for spark. Under the burner there is a square box with a hinge. Open this box . You will need to cover the photo electric eye with electrical tape so it does not see light. Wrap a jumper wire on each springs and position the free ends of the jumper wires within 0.25 inch of one another to simulate a burner electrode. With a good 12V battery (or jumper attached) inch you should get an arc. If you do not get an arc then you probably need a new Igniter . |
| No Heat - Burner not firing (Style with Magneto Powered/Gasoline Drive/Diesel Burner) | ||
| return to top | No Heat - Burner not Firing | It is advisable to seek a trained technician
to correct burner problems If you are not sure of what you are doing........leave it to the experts. 1. Tilt back burner hood and run pressure washer 2. Check the sight glass on the top of the burner for orange light (the burner is always on) 3. No spark - open the magneto door located in on the same end as the cart handle / mid section of the burner / held in place with two bolts (just in past the top of the diesel tank) 4. Turn the pressure washer over by hand and make sure magneto is turning. 5. Not turning - replace belt or check belt tensioner 6. Turning - ensure the spark electrodes (located on top of burner assembly) have a 1/4" gap. You can view this by removing the diesel nozzle line (located in the middle top of burner) 7. Gap is okay - the problem must be with the ignition coil. Remove engine and pump as a unit and inspect that the coil has clearance from the flywheel. You may use a business card folded over to make sure there is gap between the coil and magneto flywheel. If the coil is hitting the flywheel - no spark will occur 8. Still no spark- replace ignition coil |
| Preventative maintenance and freeing up tight plungers | ||
| return to top | Binding of the plungers at the high pressure seals caused by hard water and preventing oxidation | After every use run the unit with R .V.
antifreeze. How ?------ Connect a 6 ft garden hose to the inlet port of the unit, and with the help of a funnel pour R.V.antifreeze in and run unit. When you see antifreeze coming out the high pressure side then stop. |
| Tight plungers caused by oxidation | Make sure that the unit is unplugged from the power supply; then with a thin long screw-driver and from the handle side of the unit spin the motor fan a few times. This will free up the bound plungers. | |
| return to top | Fuel Shortage Caused by plugged pilot circuit or bad or old fuel | You may be able to check this by partially moving the choke lever in around the middle position to see if the engine runs more consistent under load. |
| Dirt in the unloader valve | Do you still have an inlet screen on the garden hose connector? If your spray tips had dirt lodged into them it is very probable that your pressure regulator valve has some trapped dirt in it as well. You may want to try installing the Black soap tip in the end of the wand and do a repeated On / Off trigger for 15 - 30 seconds, this may help clear any debris that is trapped inside the unloader. You should also try adjusting the unloader knob (black) on pump. Back the knob off a turn or so and see if that helps the machine run more consistent - then turn it back in again. You may want to repeat this a few times while under load. |
If you can't find it here...
It doesn't exist