Case 638, 648, 658, 678, 688 Round Baler Service Manual
479 pages · Publication 87012726
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- Models
- 638, 648, 658, 678, 688
- Manual type
- Service Manual
- Pages
- 479
- Publication
- 87012726
- Condition
- Brand new

What's inside
From the manual's own table of contents: 88 sections, 194 entries. See sample pages (PDF, 428 KB)
Introduction1 topic
- Precautionary Statements
Fluid Safety4 topics
- Handle Fluids Safely
- Avoid Heating Near Pressurized Fluid Lines
- Use Care Around High-pressure Fluid Lines
- Safe Service Procedures
Technical Information11 topics
- Hardware
- Thread Locking Compounds
- Retaining Compounds
- Sealants
- Standard Torque Data for Hydraulic Tubes and Fittings
- Lubrication
- Recommended Lubricants and Coolants
- Roller Chains
- Wear Limits On Roller Chains
- Standard Roller Chain Sizes (New Chains)
- Conversion Charts
Specifications1 topic
- Model 638
Drive Shaft and Clutch1 topic
- Removal - Model 638
31 201 Main Drive Slip Clutch7 topics
- Driveline Removal
- Disassembly
- Inspection
- Assembly
- Installation
- Burnishing the Main Drive Slip Clutch
- Checking Main Drive Slip Clutch Setting
Floor Roll Drive Clutch1 topic
- Checking Floor Roll Drive Clutch Setting
Show all 88 sections
Special Tools6 topics
- Drive Chain Lock-up Tool
- Tool Handle
- Main Clutch Tool
- Floor Roll Clutch Tool
- Sledge Roll Clutch Tool
- General Procedures
Tailgate Lift System4 topics
- Lift Cylinder Removal
- Lift Cylinder Repair
- Tailgate Lockout Valve Adjustment - Models 648, 658, 678, and 688
- Lockout Valve Repair
Belt Tension System6 topics
- Belt Tension System Operation
- Adding Oil
- Density Cylinder(s)
- Density Cylinder Repair
- Relief Valve Operation
- Relief Valve Replacement
Pickup Lift System1 topic
- Pickup Lift Cylinder Repair
55 000 General Information1 topic
- Components
Operation4 topics
- Twine or Net
- Twine Wrapping Cycle
- Net Wrapping Cycle
- Bale Slice Operation
Adjustments7 topics
- Tailgate Sensor
- Net Counter Roll Sensor
- Actuator Sensor (Twine Tubes)
- Bale Size Sensor And Bracket
- Net Actuator Sensor
- Bale Shape Sensors
- Bale Slice Actuator Position Sensor
Electric Components Replacement12 topics
- Operator’s Panel
- Bale Size Sensor
- Actuator, Twine
- Actuator, Net
- Position Sensors
- Counter Roll Sensor and Magnet
- Troubleshooting
- Electrical Diagrams
- Error Messages at Start-up
- Error Messages While Operating
- Diagnostic Tests
- Tailgate, Twine Actuator, and Net Counter Roll Position Sensor Diagnostic Tests
Test Procedures3 topics
- Bale Shape, Net Actuator, and Slice Actuator Position Sensor
- Twine Actuator Position, Tailgate and Counter Roll Sensor Test
- Status Light Test
55 000 Connector Repair5 topics
- 18-pin Connector
- Round Connector Repair
- Gray Rectangular Connector Repair
- Light Plug Repair
- Power Plug Repair
Lights Circuit2 topics
- Light Module
- Light Wiring Diagram
Bale Slice1 topic
- Bale Slice Knife Carriage and Roll Assembly
Belt Lacing Instructions2 topics
- Removing Belt Tension
- Belt Tracking
Endless Belts1 topic
- Repair and Replacement
68 000 Twine Wrapper9 topics
- Operation
- Adjustments
- Extendable Twine Tubes Assembly 648 And 658
- Twine Tube “Bullets” Assembly
- Twine Tube Bracket and Pivot Repair
- Replacing The Breakaway Replacement
- Pivot Link Replacement
- Knife Operating Slide Replacement
- Twine Knife Support Bearing Replacement
Net Wrapper16 topics
- Net Wrapper Adjustments
- Knife Safety Latch
- Knife Safety Latch Spring
- Net Roll Brake
- Net Roll Brake Tension
- Duckbill Override Spring
- Duckbill Baffles
- Knife Latch
- Knife Latch Repair
- Knife Reset Linkage Repair
- Knife and Knife Support Repair
- Duckbill Assembly Repair
- Duckbill Pivot Linkage Repair
- Cam Plate Replacement
- Brake Linkage Repair
- Counter Roll and Brake Replacement
Inside this manual
Real pages from this service manual (479 pages). Open the sample pages (PDF, 427 KB)
- Specifications, page 113: SECTION 31 - IMPLEMENT DRIVELINE - CHAPTER 3
- Troubleshooting, page 183: SECTION 55 - ELECTRICAL SYSTEMS - CHAPTER 1
- Diagram, page 204: SECTION 55 - ELECTRICAL SYSTEMS - CHAPTER 1
Other manuals for this machine
Save 10% on 2 manuals, 15% on 3 or more. Other manuals for the 688 are listed below. Editions cover different serial number ranges: check the serial coverage and tick only the ones that match your machine.
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This is a service manual
Here's how it compares to the other manual types.
Service manual
Factory repair procedures and technical information such as specifications, troubleshooting, and wiring and hydraulic diagrams, for the models and systems the manual covers. See What's inside for its topics.
Operator's manual
Safe operation, controls, maintenance schedules, lubrication points, inspections, and basic checks. Repair procedures are in the service manual.
Parts manual
Illustrated diagrams with factory part numbers for identifying components and ordering parts. Repair procedures are in the service manual.
Engine service manuals are sometimes sold separately, since certain machine models were offered with more than one engine option.
What it's used for
Factory manual for in-house farm and construction shop use. Straightforward, complete, and easy to follow. It contains the OEM information dealership service departments and parts counters use to diagnose problems, identify components, and perform maintenance or repairs correctly.
Service shops and owner/operators who repair their own equipment
Identifying correct parts and seeing how assemblies come apart and go back together
Keeping equipment running with less downtime
Factory manual, 479 pages
Quantity one is the manual described above.
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Ships in 1 business day.
60-day returns
Free if the mistake is ours. A manual ordered in error must come back unopened in its shrink-wrap; you pay return shipping and a 20% restocking fee applies. Return policy
Binder not included
Manuals over about 300 pages may need a standard 3-ring binder, which you can buy locally to keep the pages organized for shop use.
Questions about model, serial number, engine coverage or contents? Contact us before purchasing and we'll help confirm it's the right manual. Please verify the manual type, machine model, serial number range and engine coverage before purchasing: manuals ordered in error carry a 20% restocking fee (return policy).