Assessments - 3, GPA: 4.3
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Setup Connect to Water Supply Connect hose from water supply to the garden hose inlet on the pressure washer. • The supply hose should not be longer than 50 ft (15 m) in length. • Inside diameter of hose should measure at least a 3/4 in. (19 mm). ti5420ati5422a Up to 100 ft (30 m) of 3/8 in. high-pressure hose may be used. Longer hoses could affect pressure washer and chemical injector performance balance. Installing Spray Tip Install spray tip on wand. (Installing and Changing Spray Tips, page.) If you are using a Sandblasting Kit, see its separate manual for installation instructions. The water source must have a minimum flow rate equal to that of the pressure washer. CAUTION • • • Before you connect garden hose to pressure washer, check your local plumbing code regarding cross-connection to the water supply. If required, install a backflow preventer. If the inlet water pressure is over 60 psi (4.1 bar, 41 MPa), a regulating water valve must be installed at the garden hose connection. Do not exceed 160° F (70° C) inlet water temperature. ti5421a 309286K Operation 6 309286K Operation Pressure Relief Procedure Follow this procedure when you stop spraying and before cleaning, checking, servicing or transporting equipment. 1. Engage trigger lock. 2. Turn pressure washer OFF. 3. Remove ignition cap from spark plug. 4. Turn off water supply and disconnect pressure washer from water. 5. Unlock trigger lock. Trigger gun to relieve pressure. Engage trigger lock. .............. ti5424a ON OFF If you suspect the spray tip or hose is clogged or that pressure has not been fully relieved after following the pressure relief procedure, VERY SLOWLY loosen tip guard retaining nut or hose end coupling to relieve pressure gradually, then loosen completely. Clear hose or tip obstruction. ti5425a ti5427a Operation 309286K 7 Startup • Always engage the gun trigger safety latch when you stop spraying. This reduces the risk of fluid injection or splashing in eyes or on skin if the gun is bumped or triggered accidentally. Be sure latch is pushed fully down or it will not prevent the gun from being triggered. • When using a sandblasting kit, refer the sandblaster kit instruction manual for detailed operating and cleaning information. 1. Check oil level of engine and pump. 2. Check fuel level. 3. Check oil level in pump. It should be half way up the sight glass, located on the front of the pump. Add pump oil as necessary. The system is equipped with a thermal overload to help prevent severe damage. 4. Turn on water supply. . 5. Trigger gun until a constant stream of water sprays from the tip, indicating air is purged from the system. 6. Open fuel shutoff valve. Be sure spark plug ignition cable is pushed firmly on the spark plug. • All Honda engine-powered pressure washers are equipped with an engine low-oil sensor that shuts the engine off when the oil level falls below a certain level. • If the engine stops unexpectedly, check the oil and fuel levels. • Check the oil level each time you add fuel. ti5437a engaged disengaged ti5428a ti5429a Fuel level After the first 50 hours of operation, drain and refill pump oil. CAUTION Always be sure the water supply is completely turned on before you run the pressure washer. Never run pressure washer without water. Costly pump damage will result. ti5430a Oil level ti5431a ti5433a ON Operation 7. Move switch to ON position and set throttle to HALF throttle position. ONOFF ti5434a CAUTION • Do not allow pressure washer to idle for more than 10 minutes. This causes the recirculating water to overheat and can seriously damage the pump. • Turn off pressure washer if it will not be spraying at least every 10 minutes. If heated inlet water is used, reduce this time more. • Do not operate pressure washer with inlet water screen removed. This screen help keep abrasive sediment out of pump. This sediment could clog pump or damage cylinders. Keep screen clean. • Do not pump caustic materials which could corrode pump components. 8. Trigger gun to produce a constant stream of water and, at the same time, pull starter rope quickly to start the engine. Pull and return rope until the engine starts. HINT: Placing one foot on the pressure washer as a brace provides better leverage. • For easier starting, have one person start pressure washer while another triggers gun. • If engine is cold, before starting engine, close choke completely. In cool weather you might have to run engine for the first 10-30 seconds with the choke closed. In warm weather, open choke completely as soon as engine starts. • If engine is warm, start engine with choke completely open or only partially closed. When engine starts, open choke completely. OPEN HALF CLOSED ti5436a Chemical Injector Operation 1. Follow Pressure Relief Procedure (page 6). 2. Insert chemical filter (attached with clear tubing to chemical injector) into the chemical container. Insert brass coupler into chemical injector. ti5435a ti5438a 309286K 3. Install black (lar...
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