Sullair H750 CFM/300 PSI Portable Air Compressor Operator’s Manual & Parts List PDF

Description

Sullair H750 CFM/300 PSI Operator’s Manual and Parts List

This is the complete Operator’s Manual and Parts List for the Sullair H750 CFM/300 PSI portable air compressor. It covers the H750/300 two-stage rotary screw compressor package powered by a Detroit Diesel 6V 92TA engine, and it is written for the operator, rental fleet technician, and field service mechanic who needs factory procedures and part numbers in one document. The Sullair H750 CFM/300 PSI Operator’s Manual and Parts List combines day-to-day operating instructions with a fully illustrated parts breakdown covering the engine, compressor, running gear, fuel, air inlet, exhaust, cooling and lubrication, discharge, instrument panel, electrical, and Sullicon control systems.

File Details

• Manual type: Operator’s Manual and Parts List
• Brand: Sullair Corporation, a Subsidiary of Sundstrand Corporation
• Model: H750/300 (H750 CFM / 300 PSI)
• Language: English
• Page count: 102 pages
• File format: PDF
• Document sections: 7 numbered sections plus decal group
• Safety policy date shown: January 1, 1992

Chapters Covered

• Section 1 — Safety
  • 1.1 General
  • 1.2 Towing — Preparing to Tow, Towing, Parking or Locating Compressor
  • 1.3 Pressure Release
  • 1.4 Fire and Explosion
  • 1.5 Moving Parts
  • 1.6 Hot Surfaces, Sharp Edges and Sharp Corners
  • 1.7 Toxic and Irritating Substances
  • 1.8 Electrical Shock
  • 1.9 Lifting
  • 1.10 Entrapment
  • 1.11 Jump Starting
• Section 2 — Description
  • 2.1 Introduction
  • 2.2 Description of Components
  • 2.3 Sullair Compressor Unit, Functional Description
  • 2.4 Compressor Cooling and Lubrication System
  • 2.5 Compressor Discharge System
  • 2.6 Capacity Control System
  • 2.7 Air Inlet System
  • 2.8 Instrument Panel Group
  • 2.9 Electrical System
• Section 3 — Specifications
  • Table of Specifications
  • Lubrication Guide and Application Guide
  • DLQ Dimensions
• Section 4 — Operation
  • 4.1 General
  • 4.2 Purpose of Controls
  • 4.3 Initial Start-Up Procedure
  • 4.4 Subsequent Start-Up Procedure
  • 4.5 Shutdown Procedure
• Section 5 — Maintenance
  • 5.1 General — Daily Operation
  • 5.3 Maintenance After Initial 50 Hours
  • 5.4 Maintenance Every 100 Hours
  • 5.5 Maintenance Every 200 Hours
  • 5.6 Maintenance Every 500 Hours
  • 5.7 Maintenance Every 1000 Hours
  • 5.8 Parts Replacement and Adjustment Procedures (running gear lubrication, main fluid filter, air filter, control system adjustment, separator element, fluid stop valve, minimum pressure/check valve, discharge check valve, control pressure regulator, low/high pressure regulators, thermal valve, drive coupling, blowdown valves, flexible coupling, engine/compressor removal and replacement)
  • 5.9 Troubleshooting
• Section 6 — Noise Control
  • Noise Emissions Warranty
  • Tampering with Noise Control System Prohibited
  • Noise Emissions Maintenance Record Log
• Section 7 — Illustrations and Parts List
  • 7.1 Procedure for Ordering Parts
  • 7.2 Recommended Spare Parts List
  • 7.3 Engine, Compressor and Parts
  • 7.4 Frame, Running Gear and Parts
  • 7.5 Fuel System
  • 7.6 Air Inlet System
  • 7.7 Exhaust System
  • 7.8 Compressor Cooling and Lubrication System
  • 7.9 Compressor Discharge System
  • 7.10 Instrument Panel and Parts
  • 7.11 Electrical System
  • 7.12 Sullicon Control
  • 7.13 Compressor Unit Tubing
  • 7.14 Canopy and Parts
  • 7.15 Acoustical Panels
  • 7.16 Decal Group

This Sullair H750 CFM/300 PSI manual takes a technician from a cold start on a rental yard compressor through full-load operation at 300 PSIG and back to a safe shutdown, then carries that same technician into scheduled service intervals and component-level repair. The functional descriptions in Section 2 explain how the flood-lubricated two-stage rotary screw air end, thermal valve, fluid stop valve, minimum pressure/check valve, and Sullicon capacity control interact — so a fault in the discharge circuit is not misdiagnosed as an air end failure. Section 5 turns that theory into 50, 100, 200, 500, and 1000-hour service tasks with torque values, adjustment targets, and disassembly steps for the regulators, valves, and couplings. Section 7 backs every one of those jobs with part numbers and exploded views, so the same document serves as both the operating guide and the illustrated parts catalogue.

What This Manual Enables You to Do

With the Sullair H750 CFM/300 PSI Operator’s Manual and Parts List on hand, an owner or fleet mechanic can:

• Perform the correct initial and subsequent start-up sequences, including the closed-inlet start system and override button procedure, without risk of damage to the compressor.
• Interpret the instrument panel — engine water temperature, engine oil pressure, receiver pressure, compressor discharge temperature, ammeter, and tach/hourmeter — and identify readings that indicate a developing fault.
• Adjust both the low-pressure mode (150–165 PSIG) and high-pressure mode (300–320 PSIG) control regulators, set engine idle and full-load speeds, and set the inlet butterfly valve stop screw correctly.
• Troubleshoot a compressor that will not start, shuts down under air demand, builds excessive pressure, delivers insufficient air, consumes too much fluid, or overheats — using the symptom/cause/remedy charts in Section 5.9.
• Replace the main fluid filter, separator element, air filter primary and secondary elements, thermal valve elements, fluid stop valve seals, minimum pressure/check valve seal ring, discharge check valve, and blowdown valve repair kits using the correct part numbers.
• Service the E-Z Lube axle bearings, hydraulic brakes, running gear, and flexible pipe coupling.
• Order the right spare parts on the first call using the Recommended Spare Parts List and the exploded parts views with key numbers.

Why It Matters

The H750/300 is a 750 CFM, 300 PSI two-stage machine, and its control system balances air delivery against engine speed through a network of pressure regulators and a Sullicon control. Adjusting the wrong regulator, or replacing a valve without checking the sealing o-rings and lubricating them correctly, will leave the compressor cycling, hunting, or building pressure until the relief valve lifts. The torque values, adjustment pressures, temperature switch setpoints, and fluid change intervals in this manual are the ones the machine was built around — following them is what keeps the air end, the Detroit Diesel 6V 92TA, and the separator element alive between overhauls.

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The Sullair H750 CFM/300 PSI Operator’s Manual and Parts List is delivered as an instant PDF download after payment. There is no shipping and no waiting for a physical book. The file opens on any phone, tablet, laptop, or desktop computer, and every page can be printed for the shop, the service truck, or the rental counter. Keep a copy in the cab, keep a copy in the office, and keep a copy on the technician’s device.