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Product: CHALLENGER
Model: 75D CHALLENGER 5AR
Configuration: Challenger 75D Agricultural Tractor 5AR00001-UP (MACHINE) POWERED BY 3176C Engine
Operation and Maintenance Manual
CHALLENGER 65D, CHALLENGER 75D, AND CHALLENGER 85D AGRICULTU
Media Number -SEBU7034-00
Publication Date -26/08/1996 Date Updated -11/10/2001
Product Identification and Serial Number Locations
The Product Identification Number (PIN) will be used to identify a powered machine that is designed for an operator to ride.
Caterpillar products such as engines, transmissions, and major attachments, etc., not designed for an operator to ride are identified by Serial Numbers.
For quick reference, record the identification numbers in the spaces provided below the photographs.
Product: CHALLENGER
Model: 75D CHALLENGER 5AR
Configuration: Challenger 75D Agricultural Tractor 5AR00001-UP (MACHINE) POWERED BY 3176C Engine
Operation and Maintenance Manual
CHALLENGER 65D, CHALLENGER 75D, AND CHALLENGER 85D AGRICULTU
Media Number -SEBU7034-00
Publication Date -26/08/1996 Date Updated -11/10/2001
Specifications and Model Views
Radiator (1), engine (2), operator's compartment (3), fuel tank (4), and hydraulic oil tank (5).
Belt tensioning cylinder (6), drive belt (7), idler (8), suspension spring (9), and drive wheel (10)
Engine start switch (11) and system monitoring lamps (12).
Challenger 75D/Challenger 85D
Challenger 65D
Basic machine shipping specifications are listed below.
Challenger 75D/Challenger 85D
Basic machine shipping specifications are listed below.
Copyright 1993 - 2024 Caterpillar Inc.
Network For SIS Licensees. Sat Dec 7 22:33:32 UTC+0530 2024
Product: CHALLENGER
Model: 75D CHALLENGER 5AR
Configuration: Challenger 75D Agricultural Tractor 5AR00001-UP (MACHINE) POWERED BY 3176C Engine
Operation and Maintenance Manual
CHALLENGER 65D, CHALLENGER 75D, AND CHALLENGER 85D
AGRICULTU
Media
Foreword
Literature Information
The operation and maintenance manual should be stored in the operator's compartment in the literature holder or seat back literature storage area.
The operation and maintenance manual contains safety, operation, transportation, lubrication and maintenance information.
Some photographs or illustrations in the operation and maintenance manual show details or attachments that can be different from your machine. Guards and covers might have been removed for illustrative purposes.
Continuing improvement and advancement of product design might have caused changes to your machine which are not included in the operation and maintenance manual. Read, study and keep the operation and maintenance manual with the machine.
Whenever a question arises regarding the machine, or the operation and maintenance manual, please consult any Caterpillar dealer for the latest available information.
Safety
The Safety Section lists basic safety precautions. In addition, this section identifies the text and locations of warning signs used on the machine.
Read and understand the basic precautions listed in the Safety Section before operating or performing lubrication, maintenance and repair on the machine.
Operation
The operation information is a reference for the new operator and a refresher for the experienced one. This information includes a discussion of gauges, switches, machine controls, attachment controls, transportation and towing information.
Photographs and illustrations guide the operator through correct procedures of checking, starting, operating and stopping the machine.
Operating techniques outlined in the operation and maintenance manual are basic. Skill and techniques develop as the operator gains knowledge of the machine and its capabilities.
Maintenance
The maintenance information is a guide to equipment care. The illustrated, step-by-step instructions are grouped by servicing intervals. Items without specific intervals are listed under When Required topics. Items in the Maintenance Interval Schedule are referenced to detailed instructions that follow.
Maintenance Interval Schedule
Use the service hour meter to determine servicing intervals. Calendar intervals shown (daily, weekly, monthly, etc.) can be used instead of service hour meter intervals if they provide more convenient servicing schedules and approximate the indicated service hour meter reading. Recommended service should always be performed at the interval that occurs first.
Under extremely severe, dusty or wet operating conditions, more frequent lubrication than is specified in the Maintenance Intervals chart might be necessary.
Perform service on items at multiples of the original requirement. For example, at Every 500 Service Hours or 3 Months, also service those items listed under Every 250 Service Hours or Monthly and Every 10 Service Hours or Daily.
California
Proposition 65 Warning
Diesel engine exhaust and some of its constituents are known to the state of California to cause cancer, birth defects, and other reproductive harm.
Machine Description
Challenger 85D
The Challenger 65D is equipped with a direct injection 3306B turbocharged and aftercooled diesel engine.
The Challenger 75D is equipped with a direct injection 3176C turbocharged and air-to-air aftercooled diesel engine.
The Challenger 85D machine is equipped with a direct injection 3196 turbocharged and air-to-air aftercooled diesel engine.
All Challenger machines are equipped with the Mobil-trac System, which combines the best features of wheels and track.
All Challenger machines are equipped with the following features:
* Direct drive, full powershift transmission (10 speeds forward and 2 speeds reverse).
* Closed center, load sensing hydraulics.
* Inboard wet service brakes.
* Differential steering.
The Challenger 85D has a variable horsepower engine with three electronically controlled horsepower settings. See the topic Specifications and Model Views in the General Section of this manual.
Machine Storage
For complete machine storage information, refer to Special Instructions, SEHS9031, Storage Procedure for Caterpillar Products and, SEHS7392, Storage of Diesel Engines. Copyright 1993 - 2024 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees.
Product: CHALLENGER
Model: 75D CHALLENGER 5AR
Configuration: Challenger 75D Agricultural Tractor 5AR00001-UP (MACHINE) POWERED BY 3176C Engine
Operation and Maintenance Manual
CHALLENGER 65D, CHALLENGER 75D, AND CHALLENGER 85D AGRICULTU
Literature Reference Materials
Caterpillar Reference Material
The following literature can be obtained through any Caterpillar dealer.
NENG2500, Tools and Shop Products Guide
SEBD0518, Know Your Cooling System
SEBD0640, Oil and Your Engine
SEBD0717, Diesel Fuels and Your Engine
SEBD0970, Coolant and Your Engine
SEBU6989, Caterpillar Extended Life Coolant (ELC)
SEHS7392, Storage of Diesel Engines
SEBU6981, Emissions Warranty
SEHS7633, Battery Test Procedure
SEHS7768, 6V-2150 Starting/Charging Analyzer Group
SEHS8729, Installation of 8T-8652 Implement Status Switch Kit
SEHS8867, Using the 1N-6661 Pop (Injector) Tester
SEHS8884, 1.1 Liter Fuel Injection Test Specifications
SEHS9031, Storage Procedure for Caterpillar Products
SEHS9719, Installation of High Level Cab Air Inlet
SEHS9874, Challenger Tractors in Scraper Applications
SEBU5898, Cold Weather Recommendations Operation and Maintenance Manual
SEBU6365, Safety Manual
SENR9430, Service Manual
SENR9430, Disassembly & Assembly Manual
SENR5664, Air Conditioning and Heating Systems with R-134A Refrigerant
SEBP2440, Parts Manual - Challenger 65D
SEBP2583, Parts Manual - Challenger 75D
SEBP2584, Parts Manual - Challenger 85D
Operation & Maintenance Manuals are available in other languages. Contact any Caterpillar dealer for a manual.
Machine Decommissioning and Disposal
Machine decommissioning and disposal varies with local regulations. Contact the nearest Caterpillar dealer for additional information.
Emissions Warranty
The engine in this machine may be certified and covered by an emissions warranty. A detailed explanation of the emissions warranty, applicable to certified engines, is found in SEBU6981. The engine is certified if it has a special certification label. A Caterpillar dealer can inform you if the engine is certified.
Additional Reference Material
ASTM D2896 TBN Measurements (Can normally be obtained from your local technological society, library or college.)
SAE J313 Diesel Fuels (Found in the SAE handbook or can be obtained from any local library, college or technological society.)
SAE J754 Nomenclature (Normally found in the SAE handbook.)
SAE J183 Classification (Normally found in the SAE handbook.) Copyright 1993 - 2024 Caterpillar Inc. All Rights Reserved.
Network For SIS Licensees. Sat Dec 7 22:24:02 UTC+0530 2024
Product: CHALLENGER
Model: 75D CHALLENGER 5AR
Configuration: Challenger 75D Agricultural Tractor 5AR00001-UP (MACHINE) POWERED BY 3176C Engine
Operation and Maintenance Manual
CHALLENGER 65D, CHALLENGER 75D, AND CHALLENGER 85D AGRICULTU
Caterpillar's Extended Life Coolant
Caterpillar's Extended Life Coolant anti-corrosion package is different from the conventional antifreezes that have been used. Extended Life Coolant is an ethylene glycol-based coolant/antifreeze containing organic corrosion inhibitors and anti-foam agents with fewer nitrites than conventional coolants.
Extended Life Coolant was specifically designed for use in diesel engine cooling systems and natural gas engine cooling systems.
Extended Life Coolant extends coolant life to 6000 service hours or four years, whichever comes first. One addition of Caterpillar's Extender is required to maintain Extended Life Coolant.
Major Extended Life Coolant advantages:
* Twice the coolant life
* Considerably less maintenance
* Improved corrosion protection
* Better aluminum protection
* Better liner protection
* Fewer additives (chemicals) and no chemical drop out
* Longer radiator life
* Increased water pump seal life
Extended Life Coolant is available as a 50 percent Extended Life Coolant and 50 percent deionized water solution or in concentrate. See the table for quantities that are available.
NOTE: A 50 percent Extended Life Coolant and 50 percent deionized water solution provides freeze protection to -37°C (-34°F) and anti-boil protection to 108°C (226°F). DO NOT use Extended Life Coolant at reduced concentrations (less than 50 percent), as the additives would be reduced along with the antifreeze. Extended Life Coolant concentrate is available to lower the coolant freeze point when used in arctic conditions. Extended Life Coolant concentration can be increased to 60 percent for -52°C (-62°F) freeze protection.
Extender
Extender should be added to the cooling system at the 3000 service hours or two years, whichever comes first. See the table to determine the recommended amount of Extender to add to Extended Life Coolant.
Extended Life Coolant Cooling System Maintenance
NOTICE
Use only Caterpillar products or commercial products that have passed Caterpillar's EC-1 specification for premixed or concentrated coolants.
Use only Caterpillar Extender with Extended Life Coolant.
Mixing Extended Life Coolant with other products reduces the Extended Life Coolant service life. Failure to follow the recommendations included in this section can reduce cooling system component life.
In order to maintain the correct balance of antifreeze and additives, care should be taken to maintain the proper Extended Life Coolant concentration. Reducing the amount of antifreeze lowers the proportion of additive, thus lowering the coolant's ability to protect the cooling system from pitting, cavitation, erosion, and deposits.
Proper Extended Life Coolant Additions
NOTE: DO NOT add Extended Life Coolant Concentrate as a makeup solution for routine cooling system top-off. Adding concentrated Extended Life Coolant increases the concentration of glycol in the cooling system.
During normal maintenance, use a premixed solution of approved water and Extended Life Coolant as a top-off to the cooling system to bring the coolant to the proper level. Use Extended Life Coolant or a coolant that meets Caterpillar's EC-1 specification. If a coolant that meets EC-1 is not available, use distilled or de-ionized water as a make-up. Check the glycol level of the cooling system with the 1U-7298 Coolant Tester (°C) or the 1U-7297 Coolant Tester (°F). Use Extended Life Coolant Concentrate to restore the proper glycol concentration before the engine is exposed to freezing temperatures.
NOTICE
Do not use conventional coolant to top off a cooling system using Extended Life Coolant.
Do not use supplemental coolant additives other than extender in cooling systems filled with Extended Life Coolant.
If a cooling system using Extended Life Coolant has been topped off with a small amount of conventional coolant or if a supplemental coolant additive was added to the system by mistake, the system will not be harmed.
Should the cooling system become contaminated with conventional coolant or supplemental coolant additive exceeding 10 percent of the cooling system's total capacity, perform one of the following actions:
* Drain the cooling system and refill the cooling system with Extended Life Coolant, or
* Maintain the cooling system as if the cooling system is filled with conventional coolant.
Extended Life Coolant Cooling System Cleaning
NOTE: No cleaning agents are to be used when a cooling system using Extended Life Coolant is drained, flushed, and refilled.
Clean water is the only system cleaning/flushing agent required when Extended Life Coolant is drained from the cooling system.
Extended Life Coolant can be recycled. The drained coolant mixture can be "distilled" to separate the ethylene glycol and water for reuse. Contact your Caterpillar dealer for more information.
After draining and refilling the cooling system, operate the engine with the radiator filler cap removed until the coolant reaches normal operating temperature and the coolant level stabilizes. Add coolant mixture as necessary to fill the system to the proper level.
Converting a Cooling System from Conventional Coolant to Extended Life Coolant
NOTE: When the coolant is changed from conventional coolant to Extended Life Coolant, a Caterpillar cleaner should be used. After the use of Caterpillar cooling system cleaners, the system MUST be thoroughly flushed with clean water.
To convert the cooling system from conventional coolant to Extended Life Coolant, perform the following procedure:
1. Drain the coolant.
2. Flush the system with clean water to remove any debris.
3. Use a Caterpillar cleaner to clean the system. Follow the instructions on the label. Caterpillar cleaner is available from your Caterpillar dealer.
4. Drain the cleaner. Flush the cooling system with clean water.
5. Fill the cooling system with clean water. Operate the engine until the cooling system temperature is 49 to 66°C (120 to 150°F).
6. Drain and flush the cooling system with clean water.
7. Repeat Step 5 and Step 6.
8. Fill the cooling system with Extended Life Coolant.
9. Attach a label to the cooling system to indicate the system has been converted to use Extended Life Coolant.
Copyright 1993 - 2024 Caterpillar Inc. All Rights Reserved. Private Network For SIS Licensees.
Product: CHALLENGER
Model: 75D CHALLENGER 5AR
Configuration: Challenger 75D Agricultural Tractor 5AR00001-UP (MACHINE) POWERED BY 3176C Engine
Operation and Maintenance Manual
CHALLENGER 65D, CHALLENGER 75D, AND CHALLENGER 85D AGRICULTU
Media Number -SEBU7034-00 Publication Date -26/08/1996 Date Updated -11/10/2001
Cooling System Specifications
General Coolant Information
Many engine failures could be avoided with proper cooling system maintenance. Cooling system maintenance is as important as fuel and lubricating system maintenance. Coolant quality is as important as the quality of fuel and lubricating oil.
The three main functions that coolant serves are:
* Adequate heat transfer and anti-boil protection
* Cavitation erosion and corrosion protection
* Freeze protection
Coolant is normally composed of three elements:
* Water
* Additives
* Glycol
Water
Distilled or deionized water is recommended for use in cooling systems. DO NOT use hard water, tap water, or salt softened tap water in engine cooling systems. If distilled or deionized water is NOT available, use water that meets the minimum acceptable requirements.
NOTICE
Water that does not meet the minimum acceptable limits will reduce engine service life when used in cooling systems.
If you are not sure of the content of the water, contact your Caterpillar dealer, your local water department, your agricultural agent, or an independent laboratory to analyze the water.
Additives
Additives must be included in all coolant mixtures. Additives help prevent the formation of rust, scale, and mineral deposits. Additives protect metals from corrosion, prevent liner cavitation, and contain anti-foaming agents. Additives are depleted during engine operation and need to be replenished. Additives can be replenished through the addition of supplemental coolant additives (used with conventional coolants) or Extender (used with Caterpillar Extended Life Coolant).
Nitrites or nitrite and molybdate additives protect the cylinder liner from cavitation corrosion. Nitrites are depleted, creating the need for additives or Extender. Additives and Extender also contain other inhibitors that can be depleted from cooling systems.
An insufficient additive concentration does not provide adequate protection for cooling systems. An excessive additive concentration can cause additives to drop out of the solution, deposit inside the cooling system, or form a gel in the radiator. Deposits can be in the form of sludge and scale which accumulate on hot engine surfaces. Deposits reduce cooling system effectiveness, or cause water pump leaks.
To maintain conventional cooling system protection, it is necessary to monitor supplemental coolant additive concentration. Maintain the proper additive levels in the cooling system.
Glycol
Engine coolant glycol is normally either ethylene or propylene. Glycol raises the boiling point of water to help prevent boil-over, provides freeze protection, helps prevent water pump cavitation, and reduces cylinder liner pitting.
NOTICE
For ambient temperatures requiring lower freeze protection (higher than 50 percent glycol), use ethylene glycol. DO NOT use propylene glycol.
Proper freeze/boil protection requires the proper ratio of glycol and acceptable water. Use the following charts to determine glycol concentrations to mix with acceptable water.
Use the 1U-7298 Coolant Tester (°C) or the 1U-7297 Coolant Tester (°F) to check the coolant solution periodically to ensure adequate freeze/boil protection. The refractometers give immediate, accurate readings and can be used with ethylene or propylene glycol.
NOTE: For more detailed specifications, refer to: Know Your Cooling System, SEBD0518, and Coolant and Your Engine, SEBD0970, or contact your Caterpillar dealer.
Coolant Recommendations
* Preferred - Caterpillar's Extended Life Coolant (ELC).
* Recommended - Caterpillar's Diesel Engine Antifreeze/Coolant (DEAC).
* Acceptable - Any low silicate coolant that meets Truck Maintenance Council (TMC) Recommended Practice (RP) 329, TMC RP330, or ASTM D4985 requirements when used with supplemental coolant additives.
* Permitted - A mixture of acceptable water and a supplemental coolant additive, where freeze protection is not necessary.
* Unacceptable - Any high silicate coolant that is classified as meeting ASTM D3306.
NOTICE
Most commercial engine coolant/antifreezes are formulated for gasoline engine applications and have high silicate content. High silicates are condusive to cylinder liner cavitation and corrosion. Caterpillar DOES NOT recommend high silicate coolant/antifreezes.
NOTE: Due to individual engine applications, engine cooling system maintenance practices may need periodic evaluation.
NOTICE
Never operate without thermostats in the cooling system. Thermostats maintain the engine coolant at the proper operating temperature. Cooling system problems can arise without thermostats.
NOTICE
Never add coolant to an overheated engine. Allow the engine to cool first. Do not add coolant too quickly. Filling the cooling system at over 19 L (5 US gal) per minute can create air pockets in the cooling system. Engine damage can result.
When filling or adding coolant to the system, premix the coolant solution prior to pouring it into the cooling system. Pure, undiluted glycol will freeze at -23°C (-10°F). Use a coolant solution that is in a range which will provide protection to the lowest expected outside (ambient) temperature and provide the required boil-over protection.
1993 - 2024 Caterpillar Inc.
Product: CHALLENGER
Model: 75D CHALLENGER 5AR
Configuration: Challenger 75D Agricultural Tractor 5AR00001-UP (MACHINE) POWERED BY 3176C Engine
Operation and Maintenance Manual
CHALLENGER 65D, CHALLENGER 75D, AND CHALLENGER 85D AGRICULTU
Media Number -SEBU7034-00 Publication Date -26/08/1996 Date Updated -11/10/2001
Every 10 Service Hours or Daily
You must read and understand the warnings and instructions contained in the Safety section of this manual before performing any operation or maintenance procedures.
Walk-Around Inspection
Inspect Machine
NOTICE
Accumulated grease and oil on a machine is a fire hazard. Remove this debris with steam cleaning or high pressure water, at least every 1000 hours or each time any significant quantity of oil is spilled on a machine.
NOTE: Keep a close watch for leaks. If leaking is observed, find the source and correct the leak. Check the fluid levels more frequently than the recommended periods if leaking is suspected or observed.
* Inspect the implements for damage or excessive wear. Repair if damaged.
* Inspect three-point hitch cylinders and linkage (if equipped) for damage or excessive wear. Repair if damaged.
* Inspect the alternator for trash build-up. Clean out chaff and debris from the outside screen. Make sure that no debris is underneath the screen. Clean as needed.
NOTICE
Operation of an alternator with plugged screens can drastically reduce service life.
* Inspect the flood lamps, headlamps, and taillamps for broken bulbs and lenses. Replace if broken.
* Remove any trash build-up in the engine compartment. Inspect and repair any engine compartment leaks.
* Inspect the cooling system for leaks, faulty hoses and trash build-up. Correct any leaks and remove any trash from radiator.
* Inspect the alternator, fan, and air conditioner belts for looseness. If a belt appears too loose, see the topic Alternator, Fan and Air Conditioner Belts under Every 250 Service Hours or Monthly in the Maintenance Section of this manual.
* Inspect the engine air lines clamps for tightness. A leaking air line downstream of the air filter can cause engine damage by allowing unfiltered air to enter the engine.
* Service the air filter elements when the yellow piston enters the red area in the restriction gauge.
* Inspect the hydraulic system for leaks. Inspect the tanks, hoses, tubes, plugs, joints, and fittings. Correct any leaks.
* Inspect final drives for leaks.
* Make sure that covers and guards are firmly in place. Inspect for damage.
* Inspect and repair any transmission leaks.
* Maintain the fuel level to the bottom of the fill neck. Clean the filler cap as necessary.
NOTICE
Overfilling the fuel tank will not allow sufficient air space for normal expansion and can cause loss of fuel out the vent.
* Drain moisture and sediment, as required, from the fuel tank and primary fuel filter (if equipped).
* Inspect the steps, walkways, and handholds for their condition and cleanliness. Inspect the Rollover Protective Structure (ROPS) for damage. Contact your Caterpillar dealer for repairs if necessary.
* Make sure that the horn, lights, hazard lamps, guards, etc., are in proper working order. Adjust the mirror in order to allow proper viewing from the seat in order to see close behind the machine. See the topic Monitoring Systems and Cab Features in the Operation Section of this manual.
* Inspect the operator's compartment for cleanliness. Keep the operator's compartment clean.
* Check for oil leaks on suspension pivots, midroller hubs and front idler hubs. Repair if necessary.
