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North Star M1578112A - User Manual

North Star M1578112A
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2008 Northern Tool + Equipment
TM
M1578112A
ITEM NUMBERS: 1578112, 1578172
1578132, 1578182
1578152, 1578202
1577543, 1577544
Owner’s Manual
Pressure Washer: Machine that cleans dirty
surfaces with high pressure water.
Any Questions, Comments, Problems or Parts Orders
Call NorthStar Product Support 1-800-270-0810
Engine is shipped without oil.
- Before starting engine, fill engine oil.
- See engine manual for engine oil requirements.
Pump is shipped with oil.
- Remove shipping plug and install vented fill cap. (Comet Pumps)
- Remove shipping tape from pump oil fill cap. (Cat Pumps)
- See pump oil cap section of this manual.
Closely inspect all components.
-If you have damaged components then: Contact the freight company that
delivered the unit and file a claim.
-If you have missing components then: Contact Customer Service at
1-800-270-0810.
Read this manual.
Serious injury or death can result if safety instructions are not followed.
WARNING

Table of Contents

Questions and Answers

  • P
    Pamela FloresJul 30, 2025
    Why is my North Star M1578112A Pressure Washer experiencing low or surging pressure, or no water flow?
    • W
      William GutierrezJul 30, 2025
      There are several reasons why your North Star Pressure Washer might have low or surging pressure, or no water flow: * Insufficient water supply: Consult the water supply section of this manual. * Plugged pump inlet filter: Refer to the maintenance section of this manual. * Wrong nozzle: Ensure you are using the high-pressure nozzle. * Plugged nozzle: Remove the nozzle and check for blockages. * Worn nozzle: Replace the nozzle. * Leak in the pressure hose: Replace the pressure hose.
  • R
    richardrodriguezAug 13, 2025
    Why is there no chemical injection in my North Star M1578112A Pressure Washer?
    • C
      Crystal MurphyAug 14, 2025
      If your North Star Pressure Washer isn't injecting chemicals, it could be due to: * Wrong nozzle: Ensure you are using the correct chemical nozzle. * Back pressure from an extra-long discharge hose: Try using a shorter hose. * Leak in the chemical siphon hose: Replace the hose, using hose clamps if necessary. * Chemical strainer not submerged: Make sure the strainer is completely submerged in the chemical solution.

Summary

Hazard Signal Word Definitions

Important Safety Rules

Read Owners Manual

Importance of reading the manual for safety.

Skin Puncture Hazard

Risk of injury from high-pressure fluid injection.

Risk of Fire and Explosion

Hazards associated with gasoline and hot exhaust.

Poisonous Gas

Danger of carbon monoxide poisoning from engine exhaust.

Warning Label Locations

Assembly Instructions

Unpack

Identify and separate pressure washer components from packaging.

Machine Component Identification

Pump Oil Cap and Pump Component Identification

Operation Instructions

Water Supply

Guidelines for connecting and checking water supply for the pressure washer.

Maintenance and Storage

Maintenance Mode

Steps to prepare the pressure washer for maintenance.

Maintenance Schedule

Routine checks and tasks for maintaining the pressure washer.

Troubleshooting

Specifications

Parts Exploded View

Pump Exploded View

North Star M1578112A Specifications

General IconGeneral
BrandNorth Star
ModelM1578112A
CategoryPressure Washer
LanguageEnglish

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