C4.4 Industrial Engine Severe Service Application Caterpillar


Severe Service Application
`
1.1. Severe Environmental Factors
2.1. Severe Operating Conditions
3.1. Improper Maintenance Procedures (Maintenance Procedures Which May Contribute to a Severe Service Application)

An engine which operates outside of normal conditions is operating in a severe service application.

An engine that operates in a severe service application may need more frequent maintenance intervals in order to maximize the following conditions:

  • Reliability

  • Service life

The number of individual applications cause the impossibility of identifying all of the factors which may contribute to severe service operation. Consult your AVSpare dealer for the unique maintenance that may be necessary for your engine.

An application is a severe service application if any of the following conditions apply:

Severe Environmental Factors

  • Frequent operation in dirty air

  • Frequent operation at an altitude which is above 1525 m (5000 ft)

  • Frequent operation in ambient temperatures which are above 32° C (90° F)

  • Frequent operation in ambient temperatures which are below 0° C (32° F)

Severe Operating Conditions

  • Frequent operation with inlet air which has a corrosive content

  • Operation with inlet air which has a combustible content

  • Operation which is outside of the intended application

  • Operation with a plugged fuel filter

  • Extended operation at low idle (more than 20% of hours)

  • Frequent cold starts at temperatures below 0° C (32° F)

  • Frequent dry starts (starting after more than 72 hours of shutdown)

  • Frequent hot shutdowns (shutting down the engine without the minimum of 2 minutes to 5 minutes of cool down time)

  • Operation above the engine rated speed

  • Operation below the peak torque speed

  • Operating with fuel which does not meet the standards for distillate diesel fuel as stated in Special Publication, SEBU6250, "AVSpare Machine Fluids Recommendations", "Distillate Diesel Fuel"

  • Operating with a blend of distillate fuel which contains more than 20 percent biodiesel

Improper Maintenance Procedures (Maintenance Procedures Which May Contribute to a Severe Service Application)

  • Inadequate maintenance of fuel storage tanks from causes such as excessive water, sediment, and microorganism growth.

  • Inadequate maintenance of diesel exhaust fluid storage tanks from causes such as excessive water, sediment, and microorganism growth.

  • Extending maintenance intervals beyond the recommended intervals

  • Using fluids which are not recommended in Special Publication, SEBU6250, "AVSpare Machine Fluids Recommendations"

  • Extending maintenance intervals for changing the engine oil and engine coolant without S·O·S validation

  • Extending maintenance intervals for changing air filters, oil filters, and fuel filters

  • Failure to use a water separator

  • Using filters which are not recommended by Special Publication, PEWJ0074, "2008 Cat Filter and Fluid Application Guide"

  • Storing the engine for more than 3 months but less than 1 yr (For information about engine storage, refer to Special Publication, SEHS9031, "Storage Procedure for AVSpare Products")

Information System:

950M and 962M Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Drive Shaft
3516E Generator Set Engine Aftercooler - Two Stage Aftercooler
C3.4B Engines Electrical Power Supply - Test
Installation Procedure for Mounting the Rear Radar On Certain Cat Products{7347, 7605}
Procedure for Installing Retrofit Radar Holder for Cat Object Detection Systems {7347, 7605}
D7E Track-Type Tractor Systems Electronic Control (HVAC System)
950M and 962M Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Location of Components (Fan Hydraulic System)
826K Landfill Compactor, 825K Soil Compactor and 824K Wheel Dozer Machine Systems Piston Pump (Steering) - Remove and Install
D3K2, D4K2 and D5K2 Track-Type Tractors Systems Switch Circuits - Test
950M and 962M Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Electrohydraulic Control
826K Landfill Compactor, 825K Soil Compactor and 824K Wheel Dozer Machine Systems Hydraulic Tank - Assemble
C3.4B Engines ECM Memory - Test
826K Landfill Compactor, 825K Soil Compactor and 824K Wheel Dozer Machine Systems Main Control Valve - Remove and Install
950M and 962M Wheel Loaders Hydraulic System Oil Filters - Replace
Guard Rail Installation Procedure for D11T Track-Type Tractors{7150, 7256}
D7E Track-Type Tractor Systems Location of Components (HVAC System)
631K and 637K Wheel Tractor-Scraper Systems Calibration Procedures
631K and 637K Wheel Tractor-Scraper Systems Electronic Control Module (ECM) - Configure
631K and 637K Wheel Tractor-Scraper Systems Electrical Connector - Inspect
950M and 962M Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Fixed Axle (Front)
Procedure to Install a Suction Side Pressure Switch and a Compressor Protection Module to the Air Conditioning Arrangement on Certain D8R Series II Track-Type Tractors{1805, 1808, 7320}
C4.4 Engines for Caterpillar Built Machines Fuel Injection
950M and 962M Wheel Loaders Power Train, Steering, Braking, Hydraulic, and Machine Systems Oscillating Axle (Rear)
C3.4B Engines Glow Plug Starting Aid - Test