Simpson V3100 warranty Basic Elements of AN Engine, Pressure Washer Terminology

BASIC ELEMENTS OF AN ENGINE

Refer to the engine manual for location and operation of engine controls.

Choke Control: Opens and closes carburetor choke valve.

Starter Grip: Pulling starter grip operates recoil starter to crank engine.

Engine Switch: Enables and disables ignition system.

PRESSURE WASHER TERMINOLOGY

PSI: Pounds per Square Inch. The unit of measure for water pressure. Also used for air pressure, hydraulic pressure, etc. Sometimes noted as “Bar”, another unit of measure.

GPM: Gallons per Minute. The unit of measure for the fl ow rate of water. Sometimes noted as L/min (Liters per Minute).

CU: Cleaning Units. GPM multiplied by PSI equals CU.

Bypass Mode: Allows water to re-circulate within the pump when the gun trigger is not pulled. This feature allows the operator to release the trigger gun and reposition themselves without having to turn the engine off in between cleaning actions.

Allowing the unit to run for more than two minutes without the gun trigger being pulled could cause overheating and damage to the pump. Do not let the pressure washer run for more than two minutes in Bypass Mode. Turn off the engine and relieve the pressure in the gun during these extended situations.

Thermal Relief Valve (not shown): When the temperature inside the pump rises too high, this valve will open and release a gush of water in an effort to lower the temperature inside the pump. The valve will then close.

Chemical Injection System: Mixes cleaners or cleaning solvents with the water to improve clean- ing effectiveness. Depending on your machine, this could either be a Detergent Siphon Tube (which is inserted into a container of detergent), or a Detergent Tank (which is fi lled with detergent and is an integral part of the pressure washer frame).

Water Supply: All pressure washers must have a source of water. The minimum requirements for a water supply are 20 PSI and 5 Gallons Per Minute.

PRESSURE WASHER OPERATING FEATURES - SPRAY WAND

Spray Wand: There are two types of spray wands that can be included with your pressure washer. Check Carton Contents section of this manual to see which Wand your pressure washer uses.

1)Variable Spray Wand. This wand includes both high and low pressure settings. The high pres- sure setting is for cleaning and rinsing, and the low pressure setting is for applying chemicals or cleaning solutions to surfaces.

Risk of fl uid injection. Do not direct discharge stream toward persons, unpro- tected skin, eyes, or any pets or animals. Serious injury will occur.

For high pressure opera- tion, pull back the nozzle of the multi-adjustable spray wand as shown.

The nozzle at the end of the variable spray wand can be rotated to change from the high pressure spray pattern from a 0º pencil stream to a 40º fan spray, as shown. Markings have been placed on the nozzle to help you select the spray pattern.

For low pressure opera- tion and detergent appli- cation, extend the nozzle of the variable spray wand as shown.

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