| If you have a pressure washer business
| |
| | pulsate. When the water level in your
|
| you will eventually need to change out or
| |
| | tank reaches a point below the leak in
|
| repair the pump. There are a few things
| |
| | the hose, air will replace the water and
|
| you should know to make such change outs
| |
| | you'll get zero pressure. That makes it
|
| easy. You may also need to study up on
| |
| | very hard to wash anything.Low pressure
|
| preventative maintenance so that you do
| |
| | in the pump can be caused by a number of
|
| not have to worry about pump failure.
| |
| | things; these are by far the most common,
|
| Your pressure washer probably has one of
| |
| | but this is not a complete list,
|
| two different pumps if it is industrial
| |
| | generally if you go thru this list the
|
| grade. Either a Cat Pump or a General
| |
| | problem will be solved, check the easiest
|
| pump; both are industry standards.
| |
| | things first such as water supply:Faulty
|
| General is the leader in the industry for
| |
| | pressure gauge (Replace)Out of water
|
| sales and many prefer Cat as it sucks
| |
| | (Fill up tank)Old or worn out tip at gun
|
| better from plastic water tanks.Your pump
| |
| | nozzle (Replace)Incorrect tip (Remove and
|
| is powered by two parallel belts
| |
| | replace)Belt slippage (Tighten belt)Hose
|
| connected to your engine. You should
| |
| | leaks (Fix leaks)Faulty unloader
|
| make sure not to starve your pump from
| |
| | (Replace)Mis-adjusted unloader
|
| water. When the water tank is empty turn
| |
| | (Re-adjust)Worn packing in pump (Take it
|
| off the engine. Starving a pump will
| |
| | to dealer)Inline filter clogged with dirt
|
| burn it out in about thirty-five minutes.
| |
| | (Clean it)Obstruction in spray nozzle tip
|
| The manufacturer says five to ten
| |
| | (Remove it)Chemical metering valve
|
| minutes, but that's not life threatening.
| |
| | sucking air (Turn it off)Slow engine rpm
|
| Your pump has a safety feature whereby
| |
| | (Check engine)If you have a pulsating
|
| when you are not spraying the water, it
| |
| | issue at the gun or the machine is
|
| will automatically by pass into the tank
| |
| | Fluctuating pressure, this is a
|
| provided there is enough water for the
| |
| | completely different problem than low
|
| complete loop. Thank you. We also
| |
| | pressure. You should check for: Worn
|
| thought it was one of our great ideas.
| |
| | piston packing (Call dealer). Pump
|
| You should change the oil in the pump
| |
| | sucking air (Fix hole), Blockage in valve
|
| every month. Make sure your pressure
| |
| | (Remove, check valves and take out
|
| washer rig is on level ground and fill
| |
| | blockage). If it is fluctuating and very
|
| the pump to the red dot on the center of
| |
| | noisy or if your pump is only noisy check
|
| the eyeglass. Over filling is a really
| |
| | for:Air in suction line (Check water
|
| bad idea.On your pump you will notice six
| |
| | supply and connections)Broken or weak
|
| large bolts. Inside of the holes are
| |
| | inlet or discharge valve springs (Call
|
| check valves with springs. After 300-500
| |
| | dealer)Excessive matter in valves (Check
|
| hours you should change them. You can do
| |
| | and clean if necessary)Worn bearings
|
| this yourself. The valve kits are
| |
| | (Check and replace. If necessary, call
|
| $60.000. It's very easy:Unscrew
| |
| | dealer)Vibrations from mounting (Tighten
|
| boltsRemove old valveReplace valveMake
| |
| | it. If unable, call dealer)If you find
|
| sure to seat the valve evenlyScrew the
| |
| | the presence of water in the pump oil, it
|
| bolt back in by handMake sure the O-ring
| |
| | could be caused by: Blown pump head
|
| on the bolt is snugTighten with wrench
| |
| | seals, High humidity in air (Change oil
|
| pretty tightInspecting The PumpIf you
| |
| | more often) or Piston packing worn then
|
| drain the oil and it's got bubbles in it
| |
| | call your dealer. If water or oil drips
|
| or has turned white, then you have a
| |
| | from the bottom of the pump this could be
|
| blown seal and water is getting into the
| |
| | a number of things such as Piston packing
|
| oil because: It overheated due to water
| |
| | worn, the O-ring plunger retainer is
|
| starvation; The casing cracked because of
| |
| | worn, Oil seal worn, Pump head seal shot
|
| vibration; You forgot to change the oil,
| |
| | or Crack in pump head. If any of these
|
| dummy ($600 mistake and one lost day's
| |
| | call the dealer and see if they have the
|
| work if you can get the parts that
| |
| | parts in stock, you may be able to fix it
|
| fast).Check to see if the belts are
| |
| | yourself if you feel confident, if not
|
| tight. If not tighten them. Look for
| |
| | you will need to leave your machines with
|
| water drips. A slow drip on the exit
| |
| | the dealer for repairs.Pump lubrication
|
| side of the pump could cost you as much
| |
| | should be done every three months or 500
|
| as 150 PSI at the nozzle. A fast drip
| |
| | hours, which ever comes first. Use SAE
|
| (two to three drops per second) could be
| |
| | 40 weight oil or equivalent for Cat
|
| a 250-300 PSI loss at the nozzle. A
| |
| | pumps. Use 20/30 weight non-detergent
|
| steady drip stream might be a 500 plus
| |
| | oil for General pumps. It should be
|
| PSI loss. When you see water leaking,
| |
| | hydraulic oil with anti-wear and rust
|
| fix the leak ASAP. Be sure to use ample
| |
| | inhibitor additives. The oil level should
|
| Teflon tape when re-tightening fittings.
| |
| | be checked by looking in the window on
|
| This will stop future leaks, prevent rust
| |
| | the side of the pump. Only fill oil half
|
| and make fittings easy to separate in the
| |
| | way to the red dot.As a pressure washing
|
| future.A hole in a hose or leak on the
| |
| | contractor you must understand how to
|
| inlet side of the pump causes air to get
| |
| | maintain and repair your equipment, think
|
| in. The pump will act as if it's
| |
| | about it.Lance Winslow - Online Think
|
| starving for water. It might even
| |
| | Tank forum board.
|
