Complete service repair manual for Challenger 680B Combines, with all the technical information to maintain, diagnose, repair, and rebuild like professional mechanics.

Challenger 680B Combine workshop service & repair manual includes:
* Numbered table of contents easy to use so that you can find the information you need fast.
* Detailed sub-steps expand on repair procedure information
* Numbered instructions guide you through every repair procedure step by step.
* Troubleshooting and electrical service procedures are combined with detailed wiring diagrams for ease of use.
* Notes, cautions and warnings throughout each chapter pinpoint critical information.
* Bold figure number help you quickly match illustrations with instructions.
* Detailed illustrations, drawings and photos guide you through every procedure.
* Enlarged inset helps you identify and examine parts in detail.

79024357A - Challenger 680B Combine Service Manual.pdf

Total Pages: 2,374 pages
File Format: PDF (bookmarked, ToC, Searchable, Printable, high quality)
Language: English

MAIN SECTIONS
01 - General Information
02 - Specifications
03 - Engine-Drives and Cooling and Fuel
04 - Material Handling
05 - Material Discharge
06 - Rear Axle
07 - Threshing and Separating
08 - Front Axle
09 - Hydraulics
10 - Electrical
11 - Electronics
12 - Cab and HVAC
13 - Grain Header
14 - Corn Header
15 - Reserved

SERVICE MANUAL
79024357 A Rev.
01 - General Information
Contents
GENERAL INFORMATION
Safety Alert Symbol ... 01-1
Signal Words ..... 01-1
Travel On Public Roads ..... 01-8
Rear Hook .. 01-9
Header Lift Cylinder Stop ..... 01-10
Safety Signs ..... 01-11
Shield Latches ..... 01-27
How A Combine Works .... 01-28
Cutting and Feeding .. 01-28
Threshing and Separating ..... 01-29
Cleaning .... 01-29
Combine Identification ..... 01-30
Machine Serial Number ..... 01-30
Engine Serial Number ... 01-30
Transmission Serial Number ..... 01-30
Final Drive Serial Number ..... 01-31
Headers ... 01-31
Diesel Fuels ..... 01-32
Important Storage and Handling Precautions ... 01-32
Fueling the Combine ..... 01-32
Fuel Specifications .... 01-33
Fuel Conditioners .. 01-33
Lubrication and Maintenance ... 01-34
Lubricants .... 01-34
Service Procedures ..... 01-34
Service Periods .... 01-34
Lubrication and Maintenance ... 01-35
Lubrication Details ... 01-41
Front of Combine ... 01-43
Left-hand Side ... 01-46
Right-hand Side ..... 01-48
Rear Axle ... 01-51
Engine .. 01-53
Type of Engine Oil ..... 01-53
Oil Additives .. 01-53
Checking Oil Level .... 01-53
Oil Change Intervals .. 01-53
Changing Engine Oil and Filter ..... 01-53
Brakes .. 01-55
Master Cylinder Oil Reservoir ... 01-55
Master Cylinder Adjustment .. 01-55
Parking Brake Adjustment ..... 01-55
Rotor Gearbox ..... 01-56
Transmission ... 01-56
Checking and Changing Lubricant .... 01-56
Final Drive .... 01-57
Without Risers ... 01-57
With Risers .... 01-57
Rear Wheel Bearings (Standard Axle) ..... 01-57
Tires and Wheels ..... 01-58
Tire Pressure ..... 01-58
Removing Wheel from Combine and Removing Tire. ... 01-58
Tire Mounting .... 01-59
Wheel Installation .. 01-60
Wheel Bolt Torque ..... 01-60
Maintenance of Tires ..... 01-61
Drive Belts ... 01-62
Banded Drive Belt ..... 01-62
Maintenance of Belts ..... 01-63
Belt Installation .. 01-64
Belt Sheave Alignment .. 01-65
Belt Problem and Wear Guide ... 01-66
Roller Chains ... 01-80
Inspection of Drive Chains and Sprockets .... 01-80
Drive Chain Adjustment and Tightening .... 01-80
Drive Chain Sprocket and Idler Alignment .... 01-81
Drive Chain Elongation and Sprocket Wear .. 01-82
Normal Tooth Wear ... 01-82
Not Normal Tooth Wear .... 01-83
Worn Chain on New Sprockets ..... 01-83
Drive Chain Service Tips ... 01-84
Cleaning and Lubricating Chains .. 01-85
Drive Chain Lubrication ..... 01-86
Drive Chain Lubricants .. 01-86
Good Drive Chain Lubrication ... 01-87
Belt and Chain Adjustments .... 01-88
Combine Drives - Left-hand Side ..... 01-88
Left-hand Pivot Shaft Drive Belt .... 01-88
Main Countershaft Drive .... 01-89
Belt Replacement .. 01-89
Hydrostatic Rotor Pump Drive ... 01-90
Spring Adjustment Hydrostatic Rotor Pump Drive .... 01-90
Feeder Reverser ... 01-91
Hydrostatic Propulsion Pump Drive ... 01-91
Front Beater Drive ..... 01-92
Spring Adjustment Hydrostatic Propulsion Pump Drive .... 01-94
Unloader Drive .. 01-95
Shoe Pitman Drive .... 01-96
Clean Grain Elevator Drive .... 01-97
Grain Tank Cross Auger Drive .. 01-97
Combine Right-Hand Drives .... 01-98
Feeder House Jack Shaft Drive Belt ..... 01-98
Fixed Speed Header Drive Belt - Standard ... 01-99
Variable Speed Header Drive Belt - If Equipped ..... 01-100
Grain Tank Filling Auger Drive Chain .. 01-100
Return Elevator and Auger Drive .... 01-101
Cleaning Fan Drive .. 01-102
Straw Spreader / Chopper Primary Drive .... 01-103
Straw Spreader / Chopper Secondary Drive ... 01-104
Feeder Elevator ..... 01-105
Conveyor Adjustment .. 01-105
Clean Grain And Returns Elevators ... 01-106
Clean Grain Elevator Chain Adjustment .. 01-106
Return Elevator Chain Adjustment .. 01-107
Installing Elevator Chains .... 01-108
Replacing Elevator Chain Paddles .. 01-108
Engine Drive Belt ... 01-108
Drive Belt ..... 01-108
Engine Compartment ..... 01-109
Engine Fuel System ... 01-111
Fuel Handling .. 01-111
Fuel Vent Breather .. 01-111
Fuel Filter and Water Separator .. 01-112
Engine Cooling System ..... 01-113
Coolant Change Period ... 01-113
Engine Cooling System Coolant .. 01-113
Checking Coolant Level .. 01-113
Radiator ... 01-114
Thermostat .. 01-114
Draining System .. 01-114
Filling System .. 01-115
Coolant System Monitoring ..... 01-115
Monitor Warnings .... 01-115
Engine Air Cleaner ..... 01-116
Outer Filter Element .... 01-116
Inner Filter Element ..... 01-116
Cleaning Outer Element .. 01-117
Electrical System ... 01-118
Batteries .. 01-118
Battery Disconnect Switch ... 01-118
Battery Charging ..... 01-119
Starter .. 01-120
Alternator ..... 01-120
Primary Circuit Breaker ... 01-120
Fuse Panel .. 01-121
Hydraulics .. 01-122
Checking Oil Level .. 01-122
Changing Hydraulic Oil .... 01-122
Hydrostatic Drives .. 01-124
Hydrostatic Oil Filters .. 01-124
Hydrostatic Oil Cooler ..... 01-124
Air Conditioning System .... 01-125
Condenser ... 01-125
Cab Air Filters .... 01-126
Cab Filter - Primary ..... 01-126
Cab Filter - Secondary .... 01-126
Recirculation Filter ... 01-126
Air Filter Cleaning Procedure .. 01-127
Storage Preparation ... 01-128
Combine .. 01-128
Engine ..... 01-128
Preparation For Use After Storage .... 01-128
Combine .. 01-128
Engine ..... 01-128
Torque Charts .... 01-129
Standard Torque Specifications .. 01-129
Metric Capscrew Markings and Torque Values ... 01-130
Metric Conversions .... 01-131
INDEX ... 01-133

Challenger Combines 680B Repair Service Manual (79024357A)