Ingersoll-Rand Sierra H 350 User Manual

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SL, SM & SH 90, 110, 132, 150, 200, 250 & 300 (50Hz)

L, H & HH 125, 150, 200, 250, 300, 350 & 400 (60Hz)

This manual contains

important safety information

and must be made available

to personnel who operate and

maintain this machine.

OPERATION AND MAINTENANCE MANUAL

LIBRO D’USO E MANUTENZIONE

MANUAL DE MANEJO Y MANTENIMIENTO

MANUAL DE OPERAÇAO E CONSERVAÇAO

C.C.N. : 80441306

REV. : D

DATE : JANUARY 2010

en pt it es

ENGLISH

PRINT LANGUAGE

PORTUGUESE

SPANISH

ITALIAN

Table of Contents

Questions and Answers:

N
Nicole TurnerAug 25, 2025
What causes a Ingersoll-Rand Sierra H 350 Air Compressor to fail to load?
- S
  Scott BullockAug 25, 2025
  If your Ingersoll-Rand Air Compressor fails to load, start by checking for leaking seals in the hydraulic cylinder. If the cylinder doesn't fully stroke when the 'Load' button is pressed, overhaul the hydraulic cylinder. Also, check for a defective load solenoid valve by removing the tube that runs from the load solenoid valve to the hydraulic cylinder. Start the compressor and press the 'Load' button; if oil doesn't come out of the solenoid valve, replace it.
P
pwilsonAug 27, 2025
How to get rid of water in Ingersoll-Rand Sierra H 350 system?
- R
  Ryan Ward IIAug 27, 2025
  If you find water in your Ingersoll-Rand Air Compressor system, start by inspecting the moisture separator/drain trap for defects and clean if required; replace if defective. Check the trap drain and drain piping for any blockages and clean them. Inspect and clean the aftercooler core if it's dirty. Ensure all enclosure panels are in place. If the unit lacks an aftercooler, consider installing one. Finally, ensure the drain line/drip leg is correctly installed, sloping the drain line away from the trap and installing a drip leg.
J
jason15Aug 31, 2025
Why is my Ingersoll-Rand Air Compressor making so much noise?
- C
  Cory NewtonAug 31, 2025
  If your Ingersoll-Rand Air Compressor has an excessive noise level, inspect and tighten any loose component mountings. Ensure that all enclosure panels are in place. If the compressor itself is defective, contact an authorized distributor immediately and do not operate the unit.
L
Linda ReedSep 4, 2025
What to do with excessive vibration of Ingersoll-Rand Sierra H 350?
- S
  Sheila GomezSep 4, 2025
  If your Ingersoll-Rand Air Compressor is experiencing excessive vibration, inspect and tighten any loose components. If the motor or compressor bearing has failed, contact an authorized distributor immediately and do not operate the unit. Inspect the area for other equipment that may be causing external vibrations.
Z
Zachary WongSep 8, 2025
Why does the pressure relief valve keep opening on my Ingersoll-Rand Sierra H 350 Air Compressor?
- L
  Lawrence GrantSep 8, 2025
  If the pressure relief valve on your Ingersoll-Rand Air Compressor opens, it could be due to the compressor operating over pressure; adjust the controller set points. Alternatively, the valve itself may be defective and require replacement.

Ingersoll-Rand Sierra H 350 Specifications

General

Model	Sierra H 350
Manufacturer	Ingersoll-Rand
Power Source	Electric
Motor Power	350 hp
Type	Rotary Screw
Full Load Operating Pressure	125 PSIG
Cooling Method	Air-Cooled

Summary

SAFETY

BREATHING AIR PRECAUTION

Precautions for using compressed air for breathing purposes.

Compressed Air and Electrical Safety

Hazards and precautions for compressed air and electrical systems.

INSTALLATION / HANDLING

LOCATION IN THE PLANT

Recommendations for optimal placement of the compressor.

COMMISSIONING AND UNPACKING

Procedures before service and safe removal from packaging.

Piping and Connections

Water System Management

Motor Installation Checks

OPERATING INSTRUCTIONS

Control Panel Basics

Calibration and Alarms

MAINTENANCE

Routine Maintenance Schedule

Fluid and Filter Maintenance

Procedures for changing air filters, oil, and oil filters.

Component Maintenance

Motor Bearing Lubrication

TROUBLE SHOOTING

Starting and Shutdown Issues

Remedies for compressor failure to start or unexpected shutdowns.

System Pressure and Air Issues

Troubleshooting low air pressure, leaks, and unloading problems.

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