April 2, 2025
General Overview
Installation & Setup
Oil and Lubrication
Controls and Hydraulics
Trolling Capabilities
Common Issues and Troubleshooting
Parts and Rebuild Kits
Maintenance and Service Intervals
Disassembly and Reinstallation
Storage, Shipping, and Off-Season Use
Miscellaneous and Tips
Videos About Twin Disc Transmissions
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April 2, 2025
Proper Storage Practices
Why Proper Storage Matters
Sealing All Open Ports
Using Desiccant Packs or Anti-Corrosion Spray
Desiccant Packs
Vapor Corrosion Inhibitor (VCI) Sprays
Fogging Oil
Environmental Considerations
Shipping Considerations
Crating and Lifting Points
Lifting Safely
Crating Guidelines
Labeling Hydraulic Line Locations
Off-Season Maintenance
Draining Fluids
Periodic Shaft Rotation
Off-Season Inspection Checklist
Reactivating After Storage
Long-Term Storage: Best Practices Summary
Frequently Asked Questions
Final Thoughts on Long-Term Care for Your MG5114A
Videos About Twin Disc Transmissions
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April 2, 2025
Most Common Replacement Parts
Clutch Discs and Separator Plates
Gaskets and Seals
Bearings and Thrust Washers
Recommended Rebuild Kits
What’s Included in a Typical Rebuild Kit
OEM Match Aftermarket Options from Diesel Pro Power
When to Choose a Full Rebuild vs. Component Service
Complete Rebuilt Transmissions
Advantages for High-Hour or Damaged Units
When a Replacement Is More Cost-Effective Than a Repair
Tips for a Successful Rebuild
Frequently Asked Questions
Final Thoughts on Rebuild Kits and Parts Replacement
Videos About Twin Disc Transmissions
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April 2, 2025
Control Valve and Actuator Functions
Understanding the Hydraulic Shift Logic
Components in the Valve System:
Troubleshooting Valve Body Issues
Common Valve Body Symptoms:
Oil Pump Functionality
Gear or Vane-Type Pump Explanation
Functions of the Oil Pump:
Symptoms of a Failing Pump
Servicing the Valve Body
Disassembly Precautions
What to Inspect:
Cleanliness and Reassembly Tips
Post-Service Function Test
Tools and Supplies Checklist
When to Replace the Valve Body or Pump
Summary Troubleshooting Table
Final Thoughts on MG5114A Hydraulic Control System
Videos About Twin Disc Transmissions
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April 2, 2025
Clutch Pack Inspection
Understanding the Clutch Packs
Signs of Wear or Heat Damage
Replacement Guidelines
Gear Teeth and Bearing Condition
Inspecting the Gear Train
Pitting, Scoring, or Spalling
Proper Visual Inspection Techniques
Bearing Inspection
Output Shaft Wear and Inspection
Endplay Checks
Oil Seals: Wear and Replacement Advice
Input and Output Shaft Seals
Signs of Seal Wear
Replacement Process
Best Practices:
Common Internal Inspection Mistakes to Avoid
Final Notes: When to Rebuild vs Replace
Rebuild If:
Replace If:
Videos About Twin Disc Transmissions
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April 2, 2025
Removal Procedure for Twin Disc MG5114A Marine Gear
Step 1: Disconnecting Control Cables and Hydraulic Lines
Step 2: Draining the Transmission
Step 3: Supporting Transmission Weight Safely
Step 4: Removing Bolts from Bellhousing and Mounts
Installation Procedure for Twin Disc MG5114A Marine Gear
Step 1: Flywheel Housing Alignment
Step 2: Bolt Torque and Sequence (General Reference)
Step 3: Reconnecting Hydraulic Lines and Linkage
Step 4: Initial Startup and Testing
Reinstallation Tips from the Field
Common Mistakes to Avoid
Final Thoughts on Removing and Reinstalling the MG5114A
Videos About Twin Disc Transmissions
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International: 305-545-5588
