Overview
The comprehensive guidance document for the Westinghouse WPX3000e (3000 PSI maximum pressure/1.76 GPM maximum flow) and WPX3400e (3400 PSI maximum pressure/2.0 GPM maximum flow) electric high-pressure cleaning machines covers product safety specifications (such as prohibiting direct spraying of human/electrical objects, anti electric shock/anti freezing measures), detailed parameters, assembly steps (including installation of wheels, handles and other components), operating procedures (preparation before start-up, power on/off, nozzle selection and use), maintenance (cleaning, storage, replacement of vulnerable parts) and troubleshooting, while emphasizing the need for product registration to protect warranty rights.
Core parameters and configuration of the product
1. Comparison Table of Model Parameters
Parameter category WPX3000e WPX3400e
Water temperature requirement: Cold Water Only
Maximum pressure (PSI) 3000 3400
Rated pressure (PSI) 2600 3000
Maximum Flow Rate (GPM) 1.76 (6.7 LPM) 2.0 (7.57 LPM)
Rated flow rate (GPM) 1.1 (4.16 LPM) 1.1 (4.16 LPM)
Power parameters 120V AC/60Hz/13A 120V AC/60Hz/14A
Core protection double insulation structure, GFCI leakage protection double insulation structure, GFCI leakage protection
2. Standard accessory list
Main components: high-pressure cleaning machine body, spray gun handle, spray long gun, front panel
Nozzle group: 0 ° turbine nozzle (high pressure), 15 ° nozzle (medium pressure), 25 ° nozzle (medium pressure), soap nozzle (low pressure)
Auxiliary accessories: 2 wheels, axle pins, washers, wire clamps, high-pressure hoses, handles, nozzle storage racks, screws/bolts

Safety Operation Standards (Key)
1. Environment and usage restrictions
Prohibited scenarios: indoor/enclosed spaces (carbon monoxide free, this is electric, mainly to prevent electric shock), rainy/snowy/damp floors, near electrical appliances/combustibles (≥ 6 feet distance), using hot water (only cold water, hot water will damage pump seals).
Water source requirements: Only tap water is allowed, and the use of lake water, pool water, and swimming pool water (which can clog the filter) is prohibited. The inlet pressure should be ≤ 150 PSI.
2. Electrical safety
GFCI protection: The plug has built-in GFCI and needs to be tested monthly (press the TEST button to hear a "click" sound, then press RESET to reset). To replace the plug/wire, accessories with GFCI of the same specifications are required.
Extension cable restrictions (not recommended, use only when absolutely necessary):
WPX3000e: wire diameter ≥ 16 AWG, length ≤ 50 feet;
WPX3400e: wire diameter ≥ 14 AWG, length ≤ 25 feet;
Do not use damaged extension cords to avoid voltage drop causing motor overheating.
3. Operation taboos
It is prohibited to directly spray human bodies, animals, glass, and electrical appliances (which are prone to injury/damage/electric shock);
The pump body should not idle for more than 1 minute (after cutting off water), otherwise the motor/pump will overheat and be damaged;
Before disassembling the nozzle, it is necessary to stop the machine, release pressure (press the spray gun to release pressure), and lock the trigger;
Children are not allowed to operate it, and adults should avoid using it under the influence of alcohol/drugs.
Assembly steps
1. Key assembly process (tools required: screwdriver, wrench)
Wheel installation: Place the body on the side, pass the shaft through the wheel and washer → insert into the body bracket → fix with the shaft pin;
Install the handle: slide the handle into the slot of the body, press the buckle until it makes a "click" sound to ensure stability;
Wire clamp and nozzle holder: Align the holes of the wire clamp/nozzle holder and fix them on the side of the machine with screws;
Connect the spray gun and hose: One end of the high-pressure hose is connected to the threaded interface of the machine body (tighten the locking nut), and the other end is connected to the spray gun (insert after pulling the collar and tighten the locking nut).

Complete operational process
1. Preparation before startup
Water source connection: Connect the garden hose to the machine's water inlet. First, rinse the hose for a few seconds to remove impurities and check the inlet filter screen (no damage/blockage);
Oil/Consumables: For the new machine, add 10W30 4-stroke engine oil (to the H-L range of the dipstick), and add a special high-pressure cleaning machine to the soap tank using a remover (dilute according to the instructions, do not use detergent/laundry detergent, as it may clog the nozzle);
Load check: Disconnect all nozzles, ensure trigger lock, and reset circuit breaker.
2. Startup and operation
Step operation details
1. Open the water source, press the trigger of the spray gun to release air until the water flow is stable (without bubbles), and then lock the trigger
Plug in the GFCI plug and press the power switch to "ON". The device will run for 1-2 seconds before shutting down (automatic start stop function, normal)
3 nozzle options: Install nozzle after shutdown and pressure relief (0 ° turbine for paint removal/concrete washing, 15 °/25 ° brick and stone washing, soap spray detergent)
Email:wang@kongjiangauto.com