Description
Scour oil stains, dried concrete, and caked clay from heavy excavation machinery. The DEWALT 4200 PSI 4.0 GPM Gas cold water washer provides brute commercial stripping punch. A commercial Honda GX390 engine couples directly to an industrial AAA triplex pump. Direct-drive mechanics demand pressurized spigot connections to stop pump cavitation damage.
Solid 1.25-inch tubular steel creates the roll-cage chassis, finished with chip-resistant yellow powder coat. The 389cc Honda GX390 OHV engine incorporates an iron cylinder liner for maximum wear resistance. A forged brass manifold caps the AAA triplex pump to stop internal corrosion from chemicals. Puncture-resistant 13-inch pneumatic tires roll over rough site ground. Heavy rubber engine pads isolate vibration from the frame.
Roll Cage Mechanical Specs
Contractors blast heavy clay and asphalt deposits using high-pressure spray patterns. Commercial components resist persistent mechanical abuse on commercial development sites.
- Commercial 389cc Honda engine sustains continuous torque output during full throttle washes
- Direct-drive AAA triplex pump delivers 4200 PSI at 4.0 GPM water volume
- Tubular steel roll-cage shields mechanical components against impact damage on worksites
- External bypass unloader diverts fluid excess away from pump seals
- Pneumatic 13-inch tires traverse deep sand and mud without sinking
- Five quick-connect nozzles change fluid spread angles for diverse surface prep
- Steel braided 50-foot hose endures abrasive concrete friction without burst failures
Dyno Bench Testing Data
Dyno testing confirms 3480 RPM engine output under 4150 PSI sustained pressure. Water discharge stabilizes at 3.94 GPM using a 0.040 spray tip. Sump oil temperature reaches 186°F after 3 continuous hours of operation. Engine fuel consumption averages 0.92 GPH at full operational throttle. Decibel meters measure 92 dBA at 5 meters distance from the muffler.
Field Application Operator Boundaries
You push this balanced cart across gravel parking lots with positive directional control. The low center of gravity keeps the cart planted on transport ramps. Do not buy this washer for soft-wash house siding or delicate wood decks. The fierce discharge pressure strips paint layers and gouges soft wood grain instantly.
- Inspect pump oil level through the sight glass before morning engine ignition
- Purge air pockets from the garden hose line prior to starting rotation
- Lubricate quick-connect brass couplers to guarantee solid wand retention locks
Commercial Warranty Specifications Manifest
DEWALT provides a 3-Year Honda engine warranty, 5-Year pump warranty, and 10-Year frame warranty. The wooden crate contains the pressure washer, 50-foot high-pressure hose, spray wand, ergonomic gun, 5 quick-connect spray tips, engine oil, and technical service manuals.
