Doosan P185WDOU-T4F (F89) User Manual (English)

Questions and Answers:

J
John WalkerAug 18, 2025
How to fix a Doosan P185WDOU-T4F (F89) Air Compressor that won't start?
- M
  michaelkirkAug 18, 2025
  If your Doosan Air Compressor won’t start, there are several potential causes to investigate. Begin by checking if the battery disconnect switch is off and ensure the emergency stop is not pushed. Verify the battery voltage is adequate and the fuel filters aren't clogged. Also, check the fuel level and add fuel if needed. If the issue persists, the compressor oil temperature or engine coolant temperature might be too high, or the engine oil pressure could be too low. Additionally, inspect for loose wire connections or a defective sensor or relay. If the starter will not turn the engine over, check the battery and fuel; the engine needs 40 psi of fuel pressure to crank.
J
Jeffrey MaloneAug 20, 2025
How to decrease high oil temperature in Doosan Air Compressor?
- A
  adrian19Aug 20, 2025
  To decrease high oil temperature in your Doosan Air Compressor, first ensure that the ambient temperature is within the rated range; if not, operate in a cooler environment. Check if the compressor is level and reposition it if tilted. Verify that the compressor oil level is adequate and that you're using the correct type of oil. Clean the exterior of the coolers and move the compressor to a cleaner environment to avoid dirty operating conditions. Replace clogged compressor oil filters and service fuel filters. Ensure the operating pressure isn't too high and that there's no recirculation of cooling air by closing enclosure doors and securing access panels. Check electric fans to ensure they are operating. Also, inspect for loosen or broken belts and tighten or replace belt set.
M
Matthew AndersonAug 23, 2025
Why did my Doosan P185WDOU-T4F (F89) stop unexpectedly?
- A
  Amanda FreemanAug 23, 2025
  If your Doosan Air Compressor stopped unexpectedly, several factors could be the cause. Check if the compressor is out of fuel and add clean fuel if necessary. The compressor oil temperature or engine coolant temperature might be too high, or the engine oil pressure could be too low. Inspect for loose or broken belts and tighten or replace them as needed. Also, check for loose wire connections at switches and connectors. If the fuel level is adequate, inspect the fuel level sender device. Furthermore, a defective sensor or malfunctioning relay could be the reason. Finally, examine the fuse and replace it if it's blown.
P
Pamela JacksonAug 26, 2025
What to do if my Doosan Air Compressor shows high engine coolant temperature?
- C
  Casey DanielAug 26, 2025
  If your Doosan Air Compressor is showing a high engine coolant temperature, start by checking the coolant level and adding coolant if it's low. Inspect the belts for looseness or breakage, and tighten or replace them as necessary. Ensure that the ambient temperature is within the rated range; if it's too high, operate the compressor in a cooler environment. If the operating conditions are dirty, move the compressor to a cleaner environment. Clean the exterior of the coolers and make sure the compressor is level. Reduce the pressure to the rated operating pressure if it's too high. Confirm that there is no recirculation of cooling air by closing enclosure doors and securing access panels. Check the fan clutch operation and unplug the fan clutch wire connection.
F
Frederick DouglasAug 28, 2025
Why is the oil pressure low in my Doosan Air Compressor engine?
- J
  James AlexanderAug 28, 2025
  If you're experiencing low engine oil pressure in your Doosan Air Compressor, begin by checking the oil level and adding oil if it's low. Ensure the compressor is level, as being tilted can affect oil pressure. Verify that you're using the correct engine oil and replace the oil if necessary. Replace the engine oil filter if it's clogged.
M
Mary LewisAug 30, 2025
How to troubleshoot low air delivery in Doosan Air Compressor?
- J
  Jeremy BrownAug 30, 2025
  To troubleshoot low air delivery in your Doosan Air Compressor, start by cleaning or replacing the air filter element(s) if they are clogged. Ensure the pressure regulation is correctly adjusted. Inspect the inlet unloader/butterfly valve and make necessary adjustments. Verify that the correct air filter element(s) are installed. Locate and repair any compressed air leaks.
L
lhernandezSep 2, 2025
What causes low engine speed in a Doosan P185WDOU-T4F (F89)?
- J
  John MoodySep 2, 2025
  Low engine speed in a Doosan Air Compressor can be caused by several factors. The fuel filters may be clogged, so service them and add clean fuel. If the operating pressure is too high, reduce it to the rated level. Check the air filter element(s) and clean or replace them if clogged. Ensure the correct air filter elements are installed.
L
Lindsey JacksonSep 4, 2025
How to fix low electrical system voltage on Doosan P185WDOU-T4F (F89) Air Compressor?
- T
  Timothy VazquezSep 4, 2025
  To address low electrical system voltage on your Doosan Air Compressor, start by tightening or replacing any loose or broken belts. Check the wires at switches and connectors for loose connections and repair them. Inspect the battery condition, recharge if necessary, check the electrolyte level, add if needed, and clean and tighten cable connections. If these steps don't resolve the issue, the alternator may be malfunctioning and require repair or replacement.
J
Jennifer GlassSep 7, 2025
Why is my Doosan P185WDOU-T4F (F89) vibrating excessively?
- A
  Amber SotoSep 7, 2025
  Excessive vibration in your Doosan Air Compressor can stem from several issues. Check if the rubber mounting isolators are loose or damaged, and tighten or replace them as needed. A defective or imbalanced fan can also cause vibration, so consider replacing it. Additionally, inspect the airend drive coupling for defects and replace it if necessary.
X
xgarciaSep 10, 2025
What causes the safety valve to open on a Doosan P185WDOU-T4F (F89) Air Compressor?
- E
  Elizabeth SwansonSep 10, 2025
  The safety valve on a Doosan Air Compressor may open due to several reasons. If the operating pressure is too high, reduce it to the rated level. A malfunctioning inlet unloader can also cause this issue, so inspect the valve and make necessary adjustments. The safety valve itself might be defective and require replacement. Check the pressure regulator and regulation lines for leaks. Ice in regulation lines or the regulation orifice can also cause the safety valve to open; apply heat to these components and check the operation of DC electric heaters, if equipped.

Doosan P185WDOU-T4F (F89) Specifications

General

Brand	Doosan
Model	P185WDOU-T4F (F89)
Category	Air Compressor
Language	English

Summary

Foreword

Information

Provides essential instructions for compressor installation, operation, and maintenance.

Safety

Safety Precautions and General Warnings

Covers essential warnings and guidelines for safe compressor operation and maintenance.

Operating Safety Guidelines

Details safe practices for operating the compressor, including operator qualifications and PPE.

Service Safety Procedures

Outlines safety procedures and precautions for servicing and maintaining the compressor.

System-Specific Safety

Covers safety related to the Battery, Exhaust System, and Coolant System.

Material Handling and Air System Safety

Addresses hazards from materials used and safe air connection practices.

Safety Decals and Symbols

Explains the meaning and importance of safety decals and symbols used on the compressor.

Lifting, Transporting and Preparation

Lifting the Compressor

Provides instructions and precautions for safely lifting and moving the compressor unit.

Compressor Mounting

Details methods and considerations for mounting the compressor package onto vehicles or frames.

Preparing for First Use

Steps to follow before initial operation, including checks for damage and fluid levels.

Noise Emission

Noise Control System Prohibitions

Discusses federal law prohibiting tampering with the noise control system.

Noise Emission Maintenance Schedule

Outlines a schedule for inspecting and maintaining noise emission controls.

General Data

P185WDOU-T4F Specifications

Presents detailed technical specifications for the P185WDOU-T4F model.

XP185WDOUA-T4F Specifications

Provides comprehensive technical data for the XP185WDOUA-T4F model.

Auxiliary Power Use

Details the horsepower available for driving auxiliary equipment.

Operating Instructions

Control Panel and Indicators

Explains the components, functions, and indicators of the main control panel.

Quick View Screens and Parameters

How to navigate and view operating parameters on the display unit.

Fault and Alert Management

Procedures for handling and acknowledging system faults and alerts.

Service Interval Setup

Instructions for configuring and managing service reminders for the compressor.

Display and Language Settings

How to adjust display settings and configure language and unit preferences.

Before Starting and Startup Procedures

Critical checks and steps required before starting the compressor engine.

Normal Operation and Shutdown

Explains standard operating modes and procedures for shutting down the compressor.

Engine Operation

Engine Operation and Maintenance

General guidance on efficient engine maintenance and troubleshooting.

Engine Management Practices

Key practices for managing engine health, including fuel, oil, and coolant.

Startup and Shutdown Procedures

Step-by-step instructions for initial startup, operation, and shutdown of the engine.

Engine Break-in Period

Specific guidelines for the initial 50 hours of engine operation to ensure longevity.

Operation in Winter

Recommendations for operating the engine in cold weather conditions.

Regular Engine Inspection

Procedures for routine checks to maintain engine performance and longevity.

Lubrication

General Lubrication Information

Importance of lubrication for compressor life and adherence to schedules.

Compressor Oil Change Procedures

Procedures and warnings related to changing the compressor oil.

Compressor Oil Specification Chart

Guidance on selecting the correct compressor oil based on pressure and temperature.

Maintenance

General Maintenance Information

Overarching principles and cautions for maintaining the equipment.

Maintenance Safety Precautions

Essential safety measures before performing any maintenance tasks.

Scheduled Maintenance Tasks

Details on regular maintenance tasks and intervals for various components.

Compressor Oil Filter Maintenance

Steps for removing, inspecting, and installing the compressor oil filter.

Compressor Oil Separator Element Replacement

Procedures for replacing the compressor oil separator element.

Heat Exchanger Maintenance

Guidance on cleaning and maintaining the compressor oil cooler and radiator.

Air Filter Element Maintenance

Procedures for inspecting, replacing, and maintaining air filter elements.

Troubleshooting

Troubleshooting Introduction

Explains the approach and methodology for troubleshooting the compressor.

Troubleshooting Chart

A guide to common complaints, their causes, and recommended corrections.

Compressor Diagnostic Codes

Lists and explains diagnostic codes displayed by the compressor system.

Preventive Maintenance Schedule (PMS)

P185WDOU-T4F Maintenance Schedule

A detailed schedule for routine maintenance tasks and intervals for the P185WDOU-T4F model.

Torque Values

Fastener Torque Specifications

Tables providing torque values for inch and metric fasteners.

Wheel Torque Chart

Specifications for torque values related to wheel mounting.

Wiring Diagrams

Compressor and Engine Harness Wiring

Visual representation of the electrical connections for the compressor and engine.

Control System Wiring Diagram

Diagram illustrating the electrical layout of the compressor and engine control systems.

Generator Option Wiring Diagram

Wiring diagram specific to the generator option for the P185WDOU model.

Warranty

General Warranty Information

Overview of general warranty terms and coverage for Doosan products.

Emission Control Systems Warranty

Limited warranty information for federal and California emission control systems.

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Doosan P185WDOU-T4F (F89) User Manual

Table of Contents

Questions and Answers:

Doosan P185WDOU-T4F (F89) Specifications

Summary

Foreword

Information

Safety

Safety Precautions and General Warnings

Operating Safety Guidelines

Service Safety Procedures

System-Specific Safety

Material Handling and Air System Safety

Safety Decals and Symbols

Lifting, Transporting and Preparation

Lifting the Compressor

Compressor Mounting

Preparing for First Use

Noise Emission

Noise Control System Prohibitions

Noise Emission Maintenance Schedule

General Data

P185WDOU-T4F Specifications

XP185WDOUA-T4F Specifications

Auxiliary Power Use

Operating Instructions

Control Panel and Indicators

Quick View Screens and Parameters

Fault and Alert Management

Service Interval Setup

Display and Language Settings

Before Starting and Startup Procedures

Normal Operation and Shutdown

Engine Operation

Engine Operation and Maintenance

Engine Management Practices

Startup and Shutdown Procedures

Engine Break-in Period

Operation in Winter

Regular Engine Inspection

Lubrication

General Lubrication Information

Compressor Oil Change Procedures

Compressor Oil Specification Chart

Maintenance

General Maintenance Information

Maintenance Safety Precautions

Scheduled Maintenance Tasks

Compressor Oil Filter Maintenance

Compressor Oil Separator Element Replacement

Heat Exchanger Maintenance

Air Filter Element Maintenance

Troubleshooting

Troubleshooting Introduction

Troubleshooting Chart

Compressor Diagnostic Codes

Preventive Maintenance Schedule (PMS)

P185WDOU-T4F Maintenance Schedule

Torque Values

Fastener Torque Specifications

Wheel Torque Chart

Wiring Diagrams

Compressor and Engine Harness Wiring

Control System Wiring Diagram

Generator Option Wiring Diagram

Warranty

General Warranty Information

Emission Control Systems Warranty

Related product manuals