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Manafacture: DeVillbiss Air Power Company
File size: 1.68 mb
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manual abstract
The unit of measure for water pressure. Also used for air pressure, hydraulic pressure, etc. GPM: Gallons Per Minute. The unit of measure for the flow rate of water through the pressure washer. CU: Cleaning Units. GPM multiplied by PSI. Bypass Mode: In Bypass Mode, the pump is recirculating water because the trigger of the spray gun is not pulled. Chemical Injection: Feeds cleaning agents into the pump to mix with the pressurized water and help in cleaning. 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. NOTE: Any supply pressure or delivery rate less than this will not allow the pressure washer to operate at its full potential. OPERATING FEATURES OF YOUR PRESSURE WASHER BYPASS MODE During normal operation water supply is turned on, engine is running, spray gun trigger is depressed, and the cold water supply circulates inside the pressure washer pump allowing pump to maintain a safe operating temperature. When you release spray gun trigger and engine is still running, you are in bypass mode. When unit is in bypass mode, water circulating inside the pump begins to heat up. If unit is left in bypass mode for more than two (2) minutes, the water temperature will rise to a dangerous level and damage internal components of the pump. water supply or operated for more than two (2) minutes without depressing the spray gun trigger, the pump will overheat and be seriously damaged. Any damage to pump due to these causes will not be covered under warranty. THERMAL RELIEF VALVE In an effort to prevent damage, pumps are equipped with a thermal relief valve. This valve will open when the temperature inside the pump rises too high. This valve will then release a gush of water in an effort to lower the temperature inside the pump. Immediately after this occurs, the valve will close. DO NOT allow your unit to operate in bypass mode for more than two minutes at any time. Overheating of pump will cause damage to pump. PRESSURE ADJUSTMENT The pressure output of the DAPC pump on your pressure washer is preset at the factory to achieve optimum pressure and cleaning. It is not adjustable. If you need to lower the pressure, there are two methods. The first method is to back away from the surface being cleaned. The farther away you are, the less pressure is delivered to the surface being cleaned. The second method is to reduce the speed of the gasoline engine (RPM). Slow the engine down and the water pressure will go down with it. DO NOT attempt to increase pump pressure. A higher pressure setting than the factory set pressure will damage pump. 9 — ENG OPERATION OPERATION For low pressure operation, extend the nozzle of the multi-reg wand as shown. RISK OF INJECTION OR INJURY TO PERSON. DO NOT DIRECT DISCHARGE STREAM TOWARD PERSONS. WHEN USING THE HIGH PRESSURE SETTING, DO NOT ALLOW THE JET-LIKE SPRAY TO COME IN CONTACT WITH UNPROTECTED SKIN, EYES, OR WITH ANY PETS OR ANIMALS. SERIOUS INJURY CAN OCCUR. HOW TO USE WAND Your pressure washer is equipped with a multi-reg wand with both high and low pressure settings. The high pressure setting is for cleaning and rinsing, the low pressure setting is for applying chemicals or cleaning solutions to surfaces. Multi-Reg (High Pressure Setting) For high pressure operation, pull back the nozzle of the multi-reg wand as shown. The nozzle at the end of the multi-reg wand can be rotated to change the high pressure spray pattern from a narrow jet to a 25O fan shape, as shown. Markings have been placed on the nozzle to help you select the spray pattern. 25° fan spray narrow jet stream Multi-Reg (Low Pressure Setting) HOW TO SIPHON CHEMICALS/CLEANING SOLVENTS Siphoning chemicals or cleaning solvents is a low pressure operation. NOTE Use only soaps and chemicals designed for pressure washer use. Do not use bleach. To siphon chemicals: 1. Press chemical hose onto barbed fitting located near high pressure hose connection of pump as shown. Barbed Fitting 2. Place other end of chemical hose with filter on it into container holding chemical/cleaning solution. 3. Set multi-reg nozzle to low pressure setting, see How To Use Wand paragraph in this section. 4. After use of chemical, siphon clean water through chemical hose to rinse it and pump clean. Chemicals which remain in pump can damage it. Damage to pump due to chemicals will not be covered under warranty. NOTE Chemicals and soap will not siphon when multi-reg nozzle is in the high pressure position. 10 — ENG OPERATION OPERATION BEFORE STARTING 1. Move pressure washer to level ground. 2. Check engine oil level. Refer to engine manufacturer's manual for procedure. NOTE The engine on this pressure washer is equipped with a low oil sensor. The amount of oil in the engine must be correct or the engine will not start. 3. Verify that filter screen is in water inlet of pump, as shown. screen filter 4. Connect water supply hose to water inlet of pump as shown. NOTE ...
Other models in this manual:Pressure Washers - 2225CWH (1.68 mb)