Archive for the ‘Articles’ Category

Trigger Gun Service

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Trigger Gun Components, Construction And Installation
The trigger gun is centered on the gun body, usually of brass or bronze. This body has several threaded ports, at least four and usually five. (more…)

Diagnostics And Testing Procedures

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The Diagnostic Process
When equipment service problems are reported, operators generally describe the symptoms they observe. The reported symptoms are often both severe and vague. Usually, requests for service are not made until the operation of the equipment has become unacceptable: that is, the equipment does not work at all, does not produce sufficient pressure to perform the desired cleaning job, or the boiler will not work and the cleaner is discharging cold water. (more…)

Pressure Hoses And Fittings

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The High Pressure Hose

High pressure or steam hose carries the water flow from the pump to the unloader valve and onward to the trigger gun or lance. Hose used to handle fluid under pressure is made up of three components: a tube to contain the fluid, reinforcement to help the tube contain high internal pressure and an outer cover to protect the reinforcement. (more…)

Isolating Fuel Oil Pump Problems

Check Fuel Delivery
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The very first step in diagnosing fuel system problems is to verify that the fuel supply is proper an adequate. Make sure that fuel is flowing. Start the cleaner and burner. Open the fuel pump bleed valve. If the pump is creating adequate fuel flow, fuel should come out of the port about two inches in an even stream. (more…)

Oil Burners

An Introduction To Oil Burner Components And Operation
Marketing Your Power Washing Service

 

Although there are several different types of oil burners used in high-pressure cleaners and their appearance may differ radically, each one must have the same basic components. (more…)

Thermostats

Introduction To Thermostat Control
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The thermostat responds to water temperature to turn the burner off or on so that a predetermined temperature is maintained. Thermostats are essentially electrical switches operated by changes in temperature. Most thermostats have two major components, a switch and a sensor. Temperature changes affect the sensor which, in turn, operates the switch. (more…)

Pressure Switches

Pressure-Actuated Switching
Marketing Your Power Washing Service

The pressure switch responds to a rise or fall in system pressure by either breaking or completing an electrical circuit. (more…)

Pump Problems

Pump Failure
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There are several reasons for pump failure and most are generally connected with improper usage. System abuse may be the direct or indirect cause of pump problems. (more…)

Controls In The Fluid System

Not All The Controls In The Fluid System Are Fluid System Controls

Marketing Your Power Washing Service

Fluid system controls allow the operator to stop or start the flow of water through the nozzle and may allow for varying pressure and volume of flow as well. Fluid system controls may also be used to prevent excess pressure or bypass temperature buildup in the fluid system. (more…)

Spray Lances

Spray Lances

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The nozzle is separated from the gun by a lance. This is essentially an extension pipe, generally a piece of pipe threaded at both ends. The terms "lance" and "wand" may be used interchangeably. In most cases, these extensions are built with some kind of insulated grip to increase operator control and protect the operator’s hand when hot water is being sprayed. (more…)