Westinghouse WPX2700H/WPX3100H High Pressure Cleaning Machine

Operation process (assembly+start+stop)

1. Assembly and preparation

Installation of wheels and handles: Use axle pins and split pins to secure the wheels to the body bracket, and install the handles with buckles to ensure they are locked in place.

Add engine oil: Open the oil filling port on a level surface, add the recommended model of engine oil to between the "L" and "H" marks on the dipstick, and tighten the dipstick.

Add fuel: Open the fuel cap, slowly add qualified gasoline, tighten the fuel cap and clean any spilled fuel.

Connect the waterway: Connect the garden hose to the water inlet (ensure that the inlet filter is intact), open the water source, and press the trigger of the spray gun to discharge the air in the pipeline.

Install nozzle: Select the nozzle according to the cleaning requirements, pull the lance collar of the spray gun into the nozzle, release and lock it.

2. Start the process

Preprocessing: Confirm that the fuel valve is open, the engine switch is set to "ON", the throttle is set to "CHOKE" (cold start), and the spray gun trigger lock is locked.

Startup operation: Hold the startup rope and slowly pull until there is resistance, then quickly pull to start; After starting the engine, gradually adjust the throttle to the "RUN" position and run it without load for 1-2 minutes to preheat.

Cleaning operation: Unlock the spray gun trigger, aim at the cleaning target, maintain a safe distance and start spraying; When soap solution is needed, replace the black nozzle, insert the siphon hose into the soap solution tank, spray soap solution to soak for 3-5 minutes, and then replace the high-pressure nozzle for flushing.

3. Shutdown process

Normal shutdown: Turn off the water source, press the trigger of the spray gun to release system pressure, turn the engine switch to "OFF", and close the fuel valve.

Emergency shutdown: In case of leakage, abnormal noise, overheating, etc., directly turn the engine switch to "OFF" to forcibly shut down.

Cleaning and organization: Disconnect all pipelines, drain the hoses and residual water in the pump body, clean the nozzle (use special tools to remove blockages), and store the spray gun and hoses.

Maintenance and Storage

1. Routine maintenance

Maintenance project cycle operation content

Check the oil level before each use, and if it is below the "L" mark, replenish it

Oil change for the first 5 hours/every 50 hours thereafter. After heating up, drain the oil, replace with new oil, and drain the bolt seal gasket

Check the air filter maintenance every 25 hours/replace the foam filter element every 50 hours, clean it with detergent, dry it in the air, and then apply a small amount of engine oil; The additional paper filter element of WPX3100H needs to be blown with compressed air

Spark plug maintenance: Check every 100 hours/replace annually to clean carbon deposits, check gaps, and replace damaged ones

Clean the nozzle with a specialized tool after each use to remove any blockages and ensure even spraying

Clean the spark suppressor every 50 hours by removing the muffler cover, cleaning the carbon buildup on the filter screen, and replacing it if it is damaged

Clean the inlet filter before each use, remove the inlet filter and flush impurities to avoid clogging the pump body

2. Storage requirements

Short term storage (≤ 3 months): Clean the equipment, drain the pipeline water, fill with fresh gasoline and add stabilizer, and store in a dry and ventilated place.

Long term storage (>3 months): Drain the fuel tank and carburetor, replace with new engine oil; Inject 1 tablespoon of engine oil into the cylinder and pull the starting rope several times (to prevent rust); Disconnect the spark plug wire and cover it with a dust cover.

Winter storage: After following the long-term storage process, inject RV specific antifreeze (6 ounces/177mL) into the pump body to prevent freezing and cracking.

Common troubleshooting

Possible causes and solutions for the fault phenomenon

Unable to start battery depletion (some models), insufficient/deteriorated fuel, incorrect throttle position, spark plug failure, low fuel protection triggering refueling or replacement with fresh fuel; Adjust the position of the air door; Clean or replace spark plugs; Add engine oil

Insufficient pressure/no pressure inlet flow, nozzle blockage, inlet filter blockage, high-pressure hose leakage, pump body failure increase water source flow; Clean the nozzle and inlet filter screen; Replace damaged hoses; Check the sealing components of the pump body

Unstable engine operation, clogged air filter, poor fuel supply, and air damper not adjusted to the "RUN" position. Clean or replace the air filter; Check if the fuel pipeline is blocked; Adjust the air damper to a stable operating state

The soap cannot be suctioned out, the siphon hose is blocked, the black nozzle is not used, and the soap tank level is too low. Clean the siphon hose; Replace the black nozzle; Supplement soap solution

Avoid running the pump without load for more than 5 minutes due to overheating, insufficient water intake, and malfunction of the heat release valve; Check if the water inlet is unobstructed; Contact after-sales service for maintenance of the heat release valve