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Sullair 300HH - User Manual

Sullair 300HH
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OPERATOR’S MANUAL AND PARTS LIST
Po r t a b l e ai r Co m P r e s s o r
300HH, 375, 375H, 375HH, 425
a n d 425H
John Deere Standard and Aftercooled and Filtered
PART NUMBER:
02250169-727 R02
©
SULLAIR CORPORATION
The information in this document
is correct at the time of printing for
portable compressor serial number
200803170000
and all subsequent serial numbers.
KEEP FOR
FUTURE
REFERENCE

Table of Contents

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Questions and Answers

  • E
    Elizabeth KleinSep 3, 2025
    What to do if my Sullair 300HH Air Compressor engine does not crank or start?
    • J
      Jennifer PatrickSep 4, 2025
      If your Sullair Air Compressor engine doesn't crank or starts, check the battery cables and tighten them if they are loose. Also, inspect the ground wire for secure attachment to the frame and tighten if needed. If the issue persists, recharge or replace the battery. Examine the fuse in the wiring harness and replace it if it's blown. Check the instrument panel connectors and wires for loose connections, breaks, or corrosion, and reattach, clean, or replace as necessary. Finally, a faulty SSAM module may also be the reason, try to replace the module.
  • D
    Donald BarrSep 18, 2025
    How to fix Sullair Air Compressor that does not crank?
    • K
      kimberly04Sep 18, 2025
      If your Sullair Air Compressor doesn't crank, it might be due to low voltage or a disconnected battery. Check the battery cables and tighten them if they are loose. Also, check the ground wire for proper attachment to the frame and tighten if required. If the battery is the issue, recharge or replace it. Another potential cause is a blown fuse in the wiring harness, so remove and inspect the fuse, replacing it if necessary.
  • R
    Ronald RochaSep 16, 2025
    Why does my Sullair Air Compressor engine crank but not start?
    • L
      Lynn OrtizSep 16, 2025
      There are several potential reasons why your Sullair Air Compressor engine cranks but doesn't start: * **Low voltage or battery issues:** Check and tighten battery cables and the ground wire. Recharge or replace the battery if needed. * **Blown fuse:** Inspect and replace any blown fuses in the wiring harness. * **Loose instrument panel connectors:** Check and reattach any loose connectors. Also, inspect wires for breaks or corrosion, cleaning or replacing them as necessary. * **Faulty SSAM module:** Consider replacing the SSAM module.
  • C
    Carla GarrisonSep 14, 2025
    What to do if the Sullair Air Compressor shows a low fuel level?
    • J
      Jordan OliverSep 15, 2025
      If the Sullair Air Compressor indicates a low fuel level, check the fuel level and fill the tank if it is empty.
  • J
    Jessica CookSep 13, 2025
    What to do if the Sullair 300HH engine speed is too low?
    • D
      David PopeSep 13, 2025
      If the engine speed of your Sullair air compressor is too low, consider the following: * Check and tighten the battery cables if the battery voltage is low. * Recharge or replace the battery if necessary. * Refuel if there is no fuel. * Drain water from the fuel/water separators on the fuel filters, and siphon water from the fuel tank, cleaning the tank if necessary, if there is water or dirt in the fuel and/or filter. * Clean and replace the air filter if it is plugged. * Replace the fuel filter if it is plugged. * Check wiring and tighten all connectors, and replace the relay if the starter solenoid relay does not engage. * Check alternator 'W' terminal (7.5 ± 2.50 VAC greater than 300 HZ) if there is no input frequency from the alternator.
  • K
    Kenneth RodriguezSep 12, 2025
    What causes excessive fluid consumption in a Sullair 300HH?
    • D
      Diane HansonSep 12, 2025
      Excessive compressor fluid consumption in your Sullair Air Compressor may be due to: * A clogged return line; clear the orifice and return line strainer. * A lubrication system leak; check all pipes, connections, and components. * A separator element that is damaged or malfunctioning; change the separator element.
  • J
    Jessica JohnsonSep 9, 2025
    What causes insufficient air delivery in a Sullair Air Compressor?
    • C
      christine17Sep 9, 2025
      Insufficient air delivery in your Sullair air compressor can be caused by several factors: * The run/start valve might not be in the run position; if your compressor has idle warm-up controls, switch the valve to RUN for full operation. * A plugged air filter; replace it. * A defective idle warm-up valve; replace the valve. * A plugged air/fluid separator; replace the separator element and also change the compressor fluid and fluid filter. * A defective pressure regulator; adjust or repair it.
  • A
    Alexander AshleySep 7, 2025
    What causes high temperature in my Sullair Air Compressor?
    • T
      Todd JonesSep 7, 2025
      High compressor temperature could be due to: * An open compressor temperature switch; check the wiring connection and tighten if loose, or check switch continuity to ground and replace if necessary. * Low receiver tank fluid level; add fluid to the receiver tank as required. * A loose or broken fan belt; tighten or replace the belt. * Insufficient cooling air flow or a dirty fluid cooler core; clean the core thoroughly and check for proper ventilation. * A clogged compressor fluid filter; change the fluid filter element. * A faulty fluid thermostat; change the fluid thermostat element. * A plugged fluid cooler tube (internal); replace the cooler.
  • D
    Debra MoralesSep 5, 2025
    Why is my Sullair Air Compressor engine coolant temperature high?
    • E
      Eduardo WhiteSep 6, 2025
      Several factors can cause the engine coolant temperature to be high: * The engine coolant temperature switch may be open; check the wiring connection and tighten if necessary, or check the switch continuity to ground and replace if necessary. * Insufficient cooling airflow; clean the cooler and check for proper ventilation. * A loose or broken fan belt; tighten or replace the belt. * Low engine coolant; fill with the proper water/glycol mixture as required. * A faulty water pump; change the pump. * A defective engine thermostat; change the thermostat element.
  • C
    Christopher HansenAug 20, 2025
    What does SSAM flash code two flashes mean on a Sullair Air Compressor?
    • B
      Brittany ScottAug 21, 2025
      If your Sullair Air Compressor shows SSAM flash code two flashes, it indicates that the engine coolant temperature switch is open, insufficient cooling airflow, or a loose/broken fan belt, or no engine coolant. Check the wiring connection to the switch and tighten it if necessary. Also, check the switch continuity to ground and replace if necessary. Clean the cooler and check for proper ventilation. Check the fan belt and tighten or replace it if necessary. Fill with proper water/glycol mixture as required.

Summary

SAFETY

General Safety and Towing Procedures

General safety precautions, towing instructions, and preparation steps.

Parking, Pressure Release, and Fire Safety

Guidelines for parking, releasing pressure, and preventing fire/explosion hazards.

Operational Hazard Awareness

Safety regarding moving parts, hot surfaces, sharp edges, and toxic substances.

Electrical, Lifting, and Entrapment Safety

Precautions for electrical shock, lifting, and preventing entrapment.

Jump Starting and Lockout;Tagout

Procedures for jump starting and implementing lockout/tagout for maintenance.

California Proposition 65 Warning

Warning regarding California Proposition 65 concerning engine exhaust and battery components.

AIR CARE SEMINAR TRAINING

DESCRIPTION

2.1 Introduction and Components Overview

Overview of Sullair compressors and identification of main components.

2.3-2.6 System Functional Descriptions

Functional descriptions of compressor unit, cooling, discharge, and capacity control systems.

2.7-2.8 System and Panel Descriptions

Descriptions of air inlet system and instrument panel group functions.

Diagnostic Gauge and Engine Information Access

How to use the diagnostic gauge for engine info, configuration, and codes.

2.9 Wiring Diagram

Schematic diagram illustrating the compressor's electrical wiring.

2.10-2.13 System Descriptions and Codes

Descriptions of electrical, shutdown, aftercooled, and diagnostic codes systems.

SPECIFICATIONS

3.1 Model Specifications

Technical specifications for 300HH, 375, and 375H John Deere models.

3.2 Model Specifications

Technical specifications for 375HH, 425, and 425H John Deere models.

3.3-3.5 Lubrication and Application Guides

Guides for compressor and engine lubrication, and fluid application.

GENERAL

4.2 Purpose of Controls

Explanation of the function and location of various compressor controls and indicators.

4.3-4.4 Startup, Shutdown, and Restart Procedures

Step-by-step instructions for initial startup, shutdown, and subsequent restarts.

MAINTENANCE

5.1-5.7 Maintenance Schedules and Procedures

Daily, interval-based, and initial hour maintenance tasks for the compressor.

5.8 Part Replacement and Adjustment

Procedures for replacing parts and making adjustments to compressor components.

5.9 Trouble Shooting

Troubleshooting common symptoms, causes, and remedies for compressor issues.

NOISE CONTROL

6.1 Noise Emissions Warranty

Warranty information related to the noise emissions of the air compressor.

6.3 Noise Emissions Maintenance

Maintenance logs and procedures for noise emission control systems.

ILLUSTRATIONS AND PARTS LIST

7.1 Procedure for Ordering Parts

How to order replacement parts for the compressor, including contact information.

7.2 Recommended Spare Parts List

A list of recommended spare parts for the compressor.

7.3 Engine, Compressor and Parts

Illustrated parts breakdown for the engine and compressor assembly.

7.4 Radiator & Compressor Fluid Cooling System

Illustrated parts list for the radiator and fluid cooling system.

7.5 Air Inlet System & Exhaust System

Illustrated parts list for the air inlet and exhaust systems.

7.6 Control Parts & Discharge Parts

Illustrated parts list for control and discharge components on 375 and 425 models.

7.7 Control Parts & Discharge Parts

Illustrated parts list for control/discharge components on 300HH, 375H, 375HH, 425H models.

7.13 Electrical Parts

Illustrated parts list for the compressor's electrical system components.

7.14 Instrument Panel & Parts

Illustrated parts list for the instrument panel and its components.

7.16 Frame, Axle & Parts and Axle Assembly

Illustrated parts list for the frame, axle, and related assembly components.

7.18 Canopy, Acoustical Panels & Parts

Illustrated parts list for canopy and acoustical panels.

7.19 Decal Locations

Diagrams showing the location of various decals on the compressor.

7.20 Panel Color Part Number Reference

Reference table for part numbers based on panel color.

Sullair 300HH Specifications

General IconGeneral
Model300HH
Flow Rate300 cfm
Weight6, 100 lbs (2, 767 kg)
TypeRotary Screw Air Compressor
Drive TypeDirect

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