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Ingersoll-Rand 7/31 - User Manual

Ingersoll-Rand 7/31
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7/31, 7/41, 7/51,
7/71, 12/56
OPERATION AND MAINTENANCE MANUAL
C.C.N. : 54626486 GB
DATE : FEBRUARY 2002
This manual contains
important safety information
and must be made available to
personnel who operate and
maintain this machine.
5200067/71, 12/56 –>
7/51
–>
3600017/41 –>
3200017/31 –>SERIAL No :
SERIAL No :
SERIAL No :
SERIAL No :
Doosan purchased Bobcat Company from Ingersoll-Rand Company in
2007. Any reference to Ingersoll-Rand Company or use of trademarks,
service marks, logos, or other proprietary identifying marks belonging
to Ingersoll-Rand Company in this manual is historical or nominative
in nature, and is not meant to suggest a current affiliation between
Ingersoll-Rand C
ompany and Doosan
Company or the products of
e
ith
er.
Revised (10-12)

Table of Contents

Questions and Answers

  • C
    christopher10Aug 10, 2025
    Why is my Ingersoll-Rand Air Compressor engine overheating?
    • M
      Michael DavidAug 10, 2025
      Your Ingersoll-Rand Air Compressor engine may be overheating due to several reasons. It could be due to a cooling system defect, such as insufficient coolant volume, fan belt slippage, thermostat malfunction, a radiator filler cap malfunction, a fouled cooling system interior, or a clogged radiator. Other potential causes include engine overload due to improper servicing, a clogged air cleaner element, insufficient airflow, or restricted coolant flow (due to high concentration of antifreeze, for example).
  • O
    ortegalauraAug 15, 2025
    Why is my Ingersoll-Rand Air Compressor consuming excessive oil?
    • S
      Scott HarrisonAug 15, 2025
      Excessive oil consumption in your Ingersoll-Rand Air Compressor can stem from several issues. Ensure you're using the correct type and viscosity of oil and that the oil quantity isn't too high. The engine might be burning oil due to faulty piston rings or damaged cylinder bores. Other potential causes include a faulty valve stem seal, oil leakage from damaged seals (including the turbocharger seal), loose joints/gaskets, or improper installation of the filter and piping.
  • V
    vjohnsonAug 20, 2025
    Why is my Ingersoll-Rand Air Compressor engine producing low output?
    • C
      Chelsea SullivanAug 20, 2025
      Low engine output in your Ingersoll-Rand Air Compressor can arise from various factors. These include incorrect injection pump adjustment (incorrect injection timing, too far advanced or retarded), injection nozzle malfunction (incorrect injection pressure or spray condition), or insufficient fuel supply to the injection pump (lack of fuel in tank, air in injection pump, fuel filter clogged, or overflow valve malfunction). Governor malfunction (incorrect engine control adjustment or deteriorated governor spring) or low cylinder compression pressure (cylinder compression leakage, incorrect valve clearance adjustment, injector nozzle misalignment, or cylinder bore wear) can also contribute. Finally, insufficient air intake volume (clogged air cleaner or restricted air flow) may be the cause.
  • B
    brianna10Aug 26, 2025
    Why is my Ingersoll-Rand Air Compressor battery overdischarging?
    • B
      brianarnoldAug 26, 2025
      A battery overdischarge in your Ingersoll-Rand Air Compressor can be caused by a low electrolyte level, potentially due to a crack in the battery body or natural consumption. It could also be due to a charging failure, such as a loose or damaged belt or a faulty alternator. Damaged wiring or contact failure can also contribute, as well as excessive electrical loads, indicating insufficient battery capacity for the application.
  • M
    Michael AlvarezAug 30, 2025
    Why does my Ingersoll-Rand 7/31 have improper exhaust?
    • J
      Julie FordAug 30, 2025
      Your Ingersoll-Rand Air Compressor might have improper exhaust due to several reasons. This includes excessive black smoke (potentially due to a clogged air cleaner, damaged or wrong injector nozzle, incorrect injection timing, excessive injection volume, or incorrect fuel) or excessive white smoke (possibly due to water mixing in fuel, low compression pressure, incorrect injection timing, low coolant temperature, or a faulty turbocharger).
  • M
    Matthew PrattSep 4, 2025
    Why is my Ingersoll-Rand 7/31 Air Compressor consuming excessive fuel?
    • R
      Robert LucasSep 4, 2025
      Excessive fuel consumption in your Ingersoll-Rand Air Compressor might be caused by fuel leakage from damaged seals, improper component installation or tightening, excessive injection volume, or a defective injection pump. It could also be due to excessive mechanical loads.

Ingersoll-Rand 7/31 Specifications

General IconGeneral
BrandIngersoll-Rand
Model7/31
CategoryAir Compressor
LanguageEnglish

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