Simpson Mini Brute Trailer MBT-4040152E - Pressure washer

Mini Brute Trailer MBT-4040152E - Pressure washer Simpson - Free user manual and instructions

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Product Type Gas-Powered Trailer Pressure Washer
Brand Simpson
Model Mini Brute Trailer MBT-4040152E
Engine Honda GX390 (estimated)
Pressure Rating 4,000 PSI
Flow Rate 4.0 GPM
Pump AAA Triplex Plunger Pump (commercial grade)
Power Source Gasoline
Fuel Capacity 5 gallons
Hose Length 50 feet steel-braided
Nozzle Tips 5 quick-change (0°, 15°, 25°, 40°, and soap)
Detergent Tank 5 gallon onboard
Hose Reel Manual crank, 50 ft capacity
Wheel Size 4.10/3.50-4 pneumatic
Trailer Dimensions (L x W x H) 48 x 30 x 40 inches
Weight 165 lbs (dry)
Thermal Relief Valve Yes, to protect pump
Low Oil Shutdown Engine-mounted sensor
Maintenance Check oil, air filter, spark plug; winterize before storage
Warranty 3 years limited (pump), 1 year engine

Frequently Asked Questions - Mini Brute Trailer MBT-4040152E Simpson

What type of oil does the engine use?
Use SAE 10W-30 or 10W-40 engine oil, API service class SJ or higher. Check dipstick before each use.
How do I start the pressure washer?
1. Connect hose and water supply. 2. Turn on water. 3. Set choke to 'Choke' position. 4. Move throttle to 'Fast' position. 5. Pull recoil starter handle until engine starts. 6. Let warm up, then move choke to 'Run'.
Can I use bleach or other chemicals?
Only use pressure washer-safe detergents. Use the onboard soap tank with a low-pressure nozzle tip. Avoid bleach or acidic cleaners as they may damage pump seals.
What is the maximum pressure?
The unit delivers up to 4,000 PSI at 4.0 GPM. Use the correct nozzle for the job to avoid damage.
How do I store the pressure washer in winter?
Winterize to prevent freeze damage: flush pump with RV antifreeze, drain all water, add fuel stabilizer to gas, change oil, and store in a dry place.
Why is the pressure fluctuating?
Possible causes: clogged nozzle, low water supply (minimum 5 GPM), air in hose, or worn pump unloader valve. Check and clean nozzle, ensure water flow.
What type of nozzle should I use?
Use the five color-coded tips: red (0° for stripping), yellow (15° for heavy cleaning), green (25° general), white (40° for light cleaning), black (soap application).
How often should I change the oil?
Change engine oil after first 5 hours of break-in, then every 50 hours or annually. Use 10W-30. Check oil level before each use.
The pump is leaking water. What should I do?
Small drips from pump seals are normal. If excessive, check hose fittings or replace pump seal kit. Ensure thermal relief valve is not stuck.
Where can I buy replacement parts?
Contact Simpson customer service or visit their website for authorized parts. Use model MBT-4040152E for correct fit.

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Product information

Brand : Simpson

Model : Mini Brute Trailer MBT-4040152E

Category : Pressure washer