Simpson MS60850 User Manual (English)

Questions and Answers:

A
Ashley ShahJul 29, 2025
How to start a Simpson MS60850 when the engine won't start?
- C
  Christina StoneJul 29, 2025
  If your Simpson Pressure Washer's engine won't start, there are several potential causes and solutions: * **No fuel:** Add fresh fuel. * **Pressure build-up:** Squeeze the gun trigger to relieve pressure. * **Choke lever position:** If the engine is cold, move the choke to the "Choke" position. If the engine is hot, move it to the "No Choke" position. * **Spark plug wire:** Attach the spark plug wire. * **Engine switch:** Ensure the engine switch is in the ON position.
A
annaturnerAug 4, 2025
Why is there no or low pressure on my Simpson MS60850?
- D
  Dustin WiseAug 4, 2025
  If you're experiencing no or low pressure with your Simpson Pressure Washer, especially on initial use, consider these possibilities: * **Low water supply:** Ensure your water supply provides at least 5 gpm @ 20 PSI. * **Air in hose:** Turn off the engine and water source. Disconnect the water source, turn it on to remove air from the hose until a steady stream appears, then turn off the water, reconnect, and squeeze the trigger to remove remaining air. * **Leak at hose fitting:** Repair any leaks at the high-pressure hose fitting, using sealant tape if needed. * **Nozzle obstructed:** Check and clean the nozzle. * **Water filter screen clogged:** Remove and clean the water filter screen.
D
Denise OliverAug 10, 2025
What to do if my Simpson MS60850 will not draw chemicals?
- A
  Amy HobbsAug 10, 2025
  If your Simpson Pressure Washer isn't drawing chemicals, check the following: * **Chemical filter:** Clean the chemical filter. * **Spray wand pressure:** Ensure the spray wand is set to low pressure. * **Chemical screen position:** Make sure the detergent siphon hose is fully submerged in the cleaning solution. * **Chemical thickness:** Dilute the chemical if it's too thick, aiming for a consistency similar to water. * **Pressure hose length:** Use a shorter high-pressure hose and lengthen the water supply hose instead.
H
hannahcummingsAug 16, 2025
How to fix water leaking at the gun/spray wand connection of my Simpson Pressure Washer?
- H
  Heather LongAug 16, 2025
  If you notice water leaking at the gun/spray wand connection of your Simpson Pressure Washer: * **O-ring:** Check for a worn or torn o-ring and replace it if necessary. * **Hose connection:** Ensure the hose connection is tight; tighten if loose.
A
Amanda SullivanAug 21, 2025
Why does the Simpson MS60850 pump pulsate?
- D
  Devon DuffyAug 21, 2025
  If your Simpson Pressure Washer pump is pulsating, the most likely cause is: * **Nozzle obstruction:** Clean the nozzle.

Simpson MS60850 Specifications

General

Brand	Simpson
Model	MS60850
Category	Pressure Washer
Language	English

Summary

SAFETY GUIDELINES AND DEFINITIONS

Safety Symbol Definitions

Explains DANGER, WARNING, CAUTION, and NOTICE symbols used in the manual.

Carbon Monoxide (CO) Safety

Details severe risks of CO from engine exhaust and ventilation requirements.

General Operation and Injury Prevention

Covers reading manuals, injection risks, hearing protection, and California chemical warnings.

FIRE AND EXPLOSION HAZARDS

Fuel Handling and Fire Prevention

Covers safe gasoline handling, vapor ignition, fuel tank expansion, and storage.

Heat Damage and Chemical Risks

Addresses muffler heat damage, material ignition, ventilation, and chemical hazards.

RESPIRATORY AND FLUID INJECTION HAZARDS

Exhaust Fumes and Cleaning Fluid Dangers

Explains risks of breathing exhaust and hazardous cleaning fluids.

High-Pressure Fluid Injection Safety

Details dangers of pressurized fluid injection and maintenance safety.

SPRAY AND OPERATION HAZARDS

Spray Injury and Projectile Hazards

Covers risks from high-velocity spray, impacting objects, and accidental spraying.

Unsafe Operation and Kickback Control

Addresses engine starting safety, kickback, and proper gun handling.

TRANSPORT, STORAGE, AND ELECTRICAL HAZARDS

Transport and Storage Safety Precautions

Covers fuel leaks, upright storage, and moving the unit.

Electrical Shock and Chemical Burn Risks

Addresses hazards from electrical outlets and chemical contact.

BURSTING, HOT SURFACE, AND LIFTING HAZARDS

Tire Bursting and Hot Surface Burns

Covers risks of over-inflated tires and contact with hot engine parts.

Safe Lifting Procedures

Addresses precautions for lifting heavy equipment.

QUICK SETUP GUIDE

Handle Installation and Fluid Checks

Covers handle assembly and initial oil/gasoline checks.

QUICK START GUIDE - INITIAL STEPS

Safety Warnings and Hose Connections

Covers initial safety warnings and connecting garden/high-pressure hoses.

QUICK START GUIDE - OPERATING STEPS

Wand, Spray Pattern, and Water Supply Setup

Details connecting the wand, selecting spray patterns, and turning on water.

Priming and Engine Start Sequence

Guides on releasing air, checking switches, and starting the engine.

GET TO KNOW THE PRESSURE WASHER

Identifying Pressure Washer Components

Explains the location and function of major parts like the pump, engine, and hoses.

ENGINE AND ASSEMBLY

Engine Controls and Assembly Instructions

Covers engine elements and step-by-step assembly of the unit.

OPERATION TERMINOLOGY

Understanding Pressure Washer Terms

Defines key terms like PSI, GPM, CU, and Bypass Mode.

PRESSURE WASHER OPERATION FEATURES

Pump Protection and Water Supply

Details thermal relief valve, detergent system, and water source requirements.

Pressure Adjustment and Spray Wand Use

Explains how to adjust pressure and select spray patterns.

PRESSURE WASHER OPERATION FEATURES (Continued)

Nozzle Selection and Chemical Application

Guides on choosing nozzles for different tasks and applying cleaning solutions.

Starting Procedures Overview

Introduces the general steps for starting the pressure washer.

STARTING THE PRESSURE WASHER

Pre-Start Safety and Fueling Precautions

Emphasizes crucial safety checks before starting, including CO and fire risks.

Oil, Water, and Hose Preparation

Details checking engine oil, connecting water supply, and hose handling.

STARTING THE PRESSURE WASHER (Continued)

Filter Check and Nozzle Choice

Covers inspecting the water inlet filter and selecting the correct nozzle.

Engine Start and Operation Checks

Details the engine start sequence, trigger use, and safety during operation.

SHUTTING DOWN AND MAINTENANCE

Proper Shutdown and Chemical Rinsing

Explains how to safely turn off the unit and rinse the chemical system.

Maintenance Safety and Engine/Pump Care

Covers safety precautions during maintenance and care for engine/pump.

Nozzle Cleaning Procedure

Guides on cleaning clogged nozzles using the provided tool.

MAINTENANCE AND STORAGE

Nozzle and Filter Cleaning Details

Continues nozzle cleaning instructions and covers water inlet filter cleaning.

STORAGE PREPARATION

Fuel System Storage Treatment

Explains how to prepare the fuel system with stabilizer for long-term storage.

Pump Protection and Drainage

Details protecting the pump from damage during storage and freezing.

STORAGE AND ACCESSORIES

Injecting Pump Protector and Draining Unit

Covers the final steps for storing the pressure washer.

Accessory Compatibility and Specifications

Discusses safe accessory use and lists product specifications.

WARRANTY INFORMATION

Limited Warranty Coverage Details

Explains the terms and duration of the limited warranty.

Warranty Exclusions and Purchaser Responsibility

Lists items not covered by warranty and user responsibilities.

TROUBLE SHOOTING GUIDE

Engine Starting Problems

Addresses common issues preventing the engine from starting.

No or Low Pressure Issues

Troubleshoots common causes for lack of pressure.

TROUBLE SHOOTING GUIDE (Continued)

Chemical Draw and Pressure Loss

Addresses issues with drawing chemicals and sudden pressure loss.

Leaks and Pump Pulsation

Troubleshoots leaks at connections and erratic pump behavior.

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72 pages

Simpson MS60850 User Manual

Table of Contents

Questions and Answers:

Simpson MS60850 Specifications

Summary

SAFETY GUIDELINES AND DEFINITIONS

Safety Symbol Definitions

Carbon Monoxide (CO) Safety

General Operation and Injury Prevention

FIRE AND EXPLOSION HAZARDS

Fuel Handling and Fire Prevention

Heat Damage and Chemical Risks

RESPIRATORY AND FLUID INJECTION HAZARDS

Exhaust Fumes and Cleaning Fluid Dangers

High-Pressure Fluid Injection Safety

SPRAY AND OPERATION HAZARDS

Spray Injury and Projectile Hazards

Unsafe Operation and Kickback Control

TRANSPORT, STORAGE, AND ELECTRICAL HAZARDS

Transport and Storage Safety Precautions

Electrical Shock and Chemical Burn Risks

BURSTING, HOT SURFACE, AND LIFTING HAZARDS

Tire Bursting and Hot Surface Burns

Safe Lifting Procedures

QUICK SETUP GUIDE

Handle Installation and Fluid Checks

QUICK START GUIDE - INITIAL STEPS

Safety Warnings and Hose Connections

QUICK START GUIDE - OPERATING STEPS

Wand, Spray Pattern, and Water Supply Setup

Priming and Engine Start Sequence

GET TO KNOW THE PRESSURE WASHER

Identifying Pressure Washer Components

ENGINE AND ASSEMBLY

Engine Controls and Assembly Instructions

OPERATION TERMINOLOGY

Understanding Pressure Washer Terms

PRESSURE WASHER OPERATION FEATURES

Pump Protection and Water Supply

Pressure Adjustment and Spray Wand Use

PRESSURE WASHER OPERATION FEATURES (Continued)

Nozzle Selection and Chemical Application

Starting Procedures Overview

STARTING THE PRESSURE WASHER

Pre-Start Safety and Fueling Precautions

Oil, Water, and Hose Preparation

STARTING THE PRESSURE WASHER (Continued)

Filter Check and Nozzle Choice

Engine Start and Operation Checks

SHUTTING DOWN AND MAINTENANCE

Proper Shutdown and Chemical Rinsing

Maintenance Safety and Engine/Pump Care

Nozzle Cleaning Procedure

MAINTENANCE AND STORAGE

Nozzle and Filter Cleaning Details

STORAGE PREPARATION

Fuel System Storage Treatment

Pump Protection and Drainage

STORAGE AND ACCESSORIES

Injecting Pump Protector and Draining Unit

Accessory Compatibility and Specifications

WARRANTY INFORMATION

Limited Warranty Coverage Details

Warranty Exclusions and Purchaser Responsibility

TROUBLE SHOOTING GUIDE

Engine Starting Problems

No or Low Pressure Issues

TROUBLE SHOOTING GUIDE (Continued)

Chemical Draw and Pressure Loss

Leaks and Pump Pulsation

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