Simpson MSH3125-S User Manual

Part No. 7104573 Rev. 5 JUN2016
3100 PSI
2.5 GPM
PREMIUM PRESSURE WASHER
INSTRUCTION
MANUAL
MANUAL DE
INSTRUCCIONES
MODEL
MODELO
MSH3125-S
MS31025HT-S
If your pressure washer is not working properly or if there are parts missing or broken,
please DO NOT RETURN IT TO THE PLACE OF PURCHASE. Contact our customer
service department at 1-877-362-4271 or www.simpsoncleaning.com
Si su lavadora a presión no trabaja correctamente ó encuentra partes rotas
ófaltantes, por favor NO LA REGRECE AL LUGAR DONDE LA COMPRO.
Contáctese con nuestro Departamento de Servicio al Cliente llamando al
1-877-362-4271 ou www.simpsoncleaning.com
IMPORTANT: Please make certain that the person who is to use this equipment carefully
reads and understands these instructions before operating.
IMPORTANTE: Aségurese por favor de que la persona que vaya a utilizar este equipo lea
con cuidado y comprenda estas instrucciones antes de operar.
VEA EL ESPAÑOL EN LA CONTRAPORTADA. INSTRUCTIVO DE OPERACIÓN,
CENTROS DE SERVICIO Y PÓLIZA DE GARANTÍA. ADVERTENCIA:
LÉASE ESTE INSTRUCTIVO ANTES DE USAR EL PRODUCTO.
SAVE THIS MANUAL FOR FUTURE REFERENCE
CONSERVE ESTAS INSTRUCCIONES PARA FUTURAS CONSULTAS

Simpson MSH3125-S Specifications

General

Flow Rate	2.5 GPM
Hose Length	25 ft
Nozzle Types	0°, 15°, 25°, 40°, Soap
Frame Material	Steel
Wheel Type	Pneumatic
Nozzle Tips	0°, 15°, 25°, 40°, Soap
Power	3100 PSI
Pump Type	OEM Technologies Axial Cam
Engine	Honda GX390
Pump	Triplex plunger pump
Hose Material	Rubber

Summary

Safety Guidelines and Definitions

Understanding Safety Symbols and Warnings

Defines DANGER, WARNING, CAUTION, and NOTICE symbols for hazardous situations.

Important Safety Instructions: CO and Injection Risks

Highlights critical risks like carbon monoxide poisoning and fluid injection injuries.

Fire and Explosion Prevention

Spark Arrester Requirements

Details legal requirements for spark arresters in California and other areas.

Preventing Fire and Explosion Hazards

Guidelines to prevent ignition from fuel, heat, and explosive environments.

Health and Fluid Injection Hazards

Breathing Hazards: Carbon Monoxide

Warns about the deadly, odorless gas carbon monoxide from engine exhaust.

Fluid Injection and Laceration Risks

Explains severe injury risk from high-pressure fluid leaks and contact.

Spray and Operation Safety

Injury from High-Velocity Spray

Covers risks from flying objects and high-speed fluid spray.

Safe Operation Practices

Details how to avoid injury from kickback, fatigue, and unsafe practices.

Storage, Electrical, and Chemical Safety

Transporting and Storing Safety

Precautions for transporting and storing the pressure washer to prevent leaks and damage.

Electrical Shock Prevention

Warns about the risk of fatal shock from water spray near electrical sources.

Chemical Burn Hazards

Advises on safe use of chemicals and protective measures against burns.

Bursting, Hot Surfaces, and Lifting Safety

Tire Bursting and Hot Surface Risks

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

Injury Prevention from Lifting

Highlights the need for assistance when lifting the heavy pressure washer.

Quick Setup Guide

Initial Setup Steps

Steps for installing the handle, checking oil, and adding gasoline.

Quick Start Safety Precautions

Essential safety warnings for starting the engine, including CO and fluid risks.

Connecting Components for Operation

Hose and Wand Assembly

Instructions for connecting garden hose, high-pressure hose, and spray wand.

System Preparation for Starting

Steps for connecting nozzles, turning on water, and releasing air.

Getting to Know Your Pressure Washer

Starter Grip and Choke Operation

How to use the recoil starter grip and adjust the choke for engine ignition.

Pressure Washer Component Identification

Diagram identifying key parts of the pressure washer for familiarization.

Assembly and Component Identification

Basic Pressure Washer Parts

Lists and describes the main components of the pressure washer system.

Assembly Instructions

Step-by-step guide for assembling the handle, nozzle holder, and nozzles.

Operation Basics and Terminology

Pressure Washer Terminology Explained

Defines PSI, GPM, CU, and Bypass Mode for understanding pressure washer functions.

Pump Overheating and Thermal Relief

Explains the risk of pump overheating and the function of the thermal relief valve.

Using the Spray Wand and Nozzles

Changing Spray Nozzles

Instructions on how to safely change nozzles for different cleaning tasks.

Nozzle Application Guide

Chart detailing nozzle colors, spray patterns, uses, and suitable surfaces.

Applying Chemicals and Starting Procedure

Safe Chemical Application

Guidelines for using cleaning solvents with the pressure washer safely.

Starting Engine Safety Warnings

Critical warnings about fluid injection and carbon monoxide risks during startup.

Preparing for Engine Start

Fueling and Oil Level Checks

Instructions for adding gasoline and checking engine oil before starting.

Water Supply and Hose Connections

Steps for connecting the water source and checking filter screen.

Engine Start and Shutdown Procedures

Starting the Engine and Water Flow

How to start the engine and initiate water flow, including safety tips.

Proper Shutdown Sequence

Steps for safely shutting down the unit after use, including rinsing and pressure release.

Maintenance and Nozzle Cleaning

General Maintenance Precautions

Warnings and schedule recommendations for performing maintenance safely.

Cleaning Clogged Nozzles

Instructions for clearing obstructions from the spray nozzle using the cleaning tool.

Water Filter Cleaning and Storage Preparation

Cleaning the Water Inlet Filter

Procedure for checking and cleaning the screen filter at the water inlet.

Fuel Stabilization for Storage

Steps to prevent fuel-related problems during long-term storage.

Storage Procedures and Specifications

Pressure Washer Storage Steps

Instructions for draining hoses and securing the unit for storage.

Product Specifications

Key technical details including PSI, GPM, hose length, and water requirements.

Warranty Information

Limited Warranty Coverage

Details the 90-day and one-year limited warranties for components and pump/frame.

Warranty Exclusions and Purchaser Responsibilities

Outlines what is not covered by the warranty and user obligations.

Troubleshooting Engine Issues

Engine Will Not Start

Identifies causes and solutions for engine starting problems.

Low or No Pressure Issues

Addresses common causes for lack of pressure during initial use.

Troubleshooting Operational Issues

Chemical Draw and Pressure Problems

Solutions for issues with drawing chemicals and low pressure after use.

Leaks and Pulsating Pump Solutions

Diagnoses and fixes for leaks at connections and pump pulsation.