
Servicing a Lewmar winch is not just about keeping gear clean, it’s about ensuring smooth sailing and avoiding sudden breakdowns on deck. A sailor knows that grease, springs, pawls, and even the smallest screw play a big role in how a self-tailing or older Lewmar system performs.
With time, old grease and dirt stiffen the moving parts, and without attention, the drum, spindle, and shaft can wear down. The truth is, a winch only works as well as the care you put into it.Servicing Lewmar winches starts with disassembly, using a service manual or diagram to keep track of pawls and springs, washers, and the tiny details.
A bucket, toothbrush, mineral spirits, and degreaser will help clean away buildup, while light oil on pawls and a light coat of winch grease on gears bring everything back to life. Taking photos during the process makes reassembly far easier, especially for first-time users. With a service kit, winch handle, and even a simple winch cover, the task becomes a routine that every practical sailor can manage.

Introduction to Lewmar Winches
Lewmar winches are designed to make handling sails smoother, whether using a self tailing or 2 speed model. Over time, even the best gear can feel stiff without proper attention. That’s why servicing Lewmar winches regularly keeps everything working as intended. From pawls to gears, every moving piece relies on care to stay reliable.
Overview of Lewmar Winch Functionality
These devices were designed to make managing sails easier by giving sailors extra power when needed. Whether using a self-tailing or a 2 speed model, the mechanics reduce strain and allow smoother handling on deck. Older designs can feel stiff, but with attention, they perform for decades.
The real beauty lies in how such systems turn steady effort into reliable movement. Practical sailor guides often compare them to similar gear like Harken, showing shared principles in operation. By understanding the movement of the shaft and bearings, you can appreciate how each part works together. For those who enjoy hands-on care, learning how to service our winches becomes part of the sailing experience.
Importance of Regular Winch Service on a Boat
Taking time to maintain the system ensures smoother handling and safer sailing. Neglecting upkeep can lead to stiff operation or sudden failure.
Key reasons to keep winches serviced:
- Extends mechanical life
- Prevents sudden breakdowns
- Improves efficiency under load
- Reduces crew fatigue
Types of Lewmar Winches Used on Sailboats
Type | Description | Best Use Case | Key Feature |
---|---|---|---|
Self-Tailing | Holds the line automatically after cranking | Short-handed sailing | Reduces need for extra crew |
2 Speed | Offers both fast and slow gear ratios | Handling heavy loads efficiently | Switches speed under load |
Standard (Non-Self-Tailing) | Classic design requiring manual line handling | Traditional sailing style | Simple and reliable |
Electric Assisted | Powered option for easier operation | Larger yachts or limited crew | Push-button convenience |
Compact Models | Smaller size for light applications | Daysailers and small craft | Lightweight and efficient |
Tools and Materials Needed for Lewmar Winch Service
When starting service, a few basics make the job easier: a winch handle, machine oil, grease, and some fresh water for cleaning. A toothbrush or small brush works well for getting into tight spaces around the winch. Using the right tools ensures servicing Lewmar winches feels less like a chore and more like routine care.
Essential Tools for Winch Maintenance
Having the correct tools makes the entire process easier and safer. A few basics are enough to carry out reliable upkeep.
Useful tools for the job include:
- Screwdrivers
- Winch handle
- Small wrenches
- Soft mallet
- Needle-nose pliers
Cleaning Supplies and Lubricants
Proper cleaning materials keep the moving parts clear of salt and dirt. Using the right lubricants ensures smooth action for longer.
Cleaning and lubrication essentials:
- Fresh water
- Degreaser
- Mineral spirits
- Light oil
- Winch grease
Safety Gear for Working on Boat Winches
Staying safe while handling mechanical parts is just as vital as the work itself. Protecting your hands and eyes avoids painful mistakes.
Recommended safety items:
- Protective gloves
- Safety glasses
- Non-slip shoes
- Lightweight coverall
- Bucket for small parts
Preparing the Lewmar Winch for Service
The first step is to rinse away salt and dirt with fresh water before you unscrew anything. Having a clean surface makes disassembly smoother and prevents grit from damaging moving parts. Preparation sets the stage for a clean and efficient service of your winch.
Removing the Winch from the Sailboat
Before beginning disassembly, take photos around the unit to remember placement. Using a winch handle, unscrew the screws carefully so no small washer or spring is lost. Keeping a bucket nearby helps catch loose pieces during the process. Removing the system properly avoids unnecessary damage and makes the job manageable. Many sailors note that comparing Harken and Lewmar removal methods reveals similar steps. Patience is needed, especially if there’s old grease and dirt stuck in place. A clear work area around the deck makes this step far more efficient.
Inspecting for Wear and Damage
Once the parts are laid out, inspect each bearing, shaft, and washer for wear. A toothbrush and degreaser can remove old layers of grease and dirt. Inspection is where you truly learn what needs attention and what can keep going. Small cracks in springs or worn pawls often show up only under close light. Practical sailor diagrams can help identify subtle flaws. Even Harken gear shows the same patterns of use over time. Taking the time to inspect prevents failures during heavy sailing conditions.
Identifying Parts That Require Cleaning or Replacement
Mineral spirits or a light coat of degreaser help clean away grime from the spindle and pawls. When parts are too worn, the service kit provides replacements such as springs or washers. Knowing what to replace ensures the mechanism keeps working without sudden failure. Some sailors even compare spare part quality between brands like Harken and Lewmar. Light oil on the pawls and lightly grease on moving parts keep them smooth. Regular inspection highlights which elements can last and which should be swapped. The process builds confidence when we service our winches.
Step-by-Step Guide to Service a Lewmar Winch
Disassemble the unit by removing the drum and taking out pawls, springs, and gears carefully. Apply oil on the pawls and lightly grease the gears before reassembling. The key is to go slowly, making sure each part is cleaned and treated with care. Photos during disassembly can help a lot when putting everything back together.
Disassembling the Lewmar Winch
Breaking down the unit step by step helps avoid losing small parts. Taking photos during disassembly makes reassembly easier.
Steps for safe disassembly:
- Unscrew the cover
- Remove the drum carefully
- Lift out washers and bearings
- Place all parts in a container
- Keep a diagram nearby
Cleaning and Inspecting Gears, Bearings, and Pawls
Every moving part should be thoroughly checked for wear or cracks. A careful inspection now prevents bigger problems later.
Focus areas during inspection:
- Gear teeth condition
- Bearing surfaces
- Pawl movement
- Shaft alignment
- Signs of rust or pitting

Reassembling and Lubricating the Winch for Optimal Performance
After everything is cleaned, begin to reassemble the unit step by step, using the photos as a guide. Apply light oil on the pawls and lightly grease other moving parts to prevent stiffness. Proper lubrication transforms stiff action into smooth, steady performance. Make sure every screw and washer is back in its place, as missing parts can cause uneven wear. Sailors often prefer machine oil for certain bearings and a light coat of winch grease for gears. Harken models follow nearly the same approach, so the method is widely trusted. When we consistently service our winches, they remain dependable for many seasons.
Testing and Maintaining the Lewmar Winch
Once reassembled, give the winch a spin to test smoothness and check for any stiff areas. A drop of machine oil around the winch can improve performance. Testing right after servicing confirms the job was done correctly. Regular spins also help spot early signs of wear.
Checking Winch Operation After Service
Once reassembled, the winch should run smoothly without stiffness. Testing under light load ensures the work was successful.
Testing steps to confirm performance:
- Rotate handle fully
- Switch between speeds
- Listen for grinding sounds
- Check pawl engagement
- Test under moderate load
Troubleshooting Common Winch Issues
When things feel rough or unresponsive, small fixes usually help. Recognizing early symptoms can stop bigger failures at sea.
Frequent issues to look for:
- Stiff movement
- Clicking noise
- Slipping under load
- Loose drum fit
- Uneven speed shift
Adjustments for Smooth Sailing Performance
Adjustment | Purpose | When to Apply | Benefit |
---|---|---|---|
Handle Position | Ensures ergonomic cranking motion | Before trimming sails | Less strain on the sailor |
Line Tension | Balances pulling force | While adjusting sheets | Keeps sails efficient |
Lubrication | Reduces friction on moving parts | After cleaning or inspection | Restores smooth operation |
Speed Shift | Switch between fast and slow ratios | During heavy load changes | Provides power or speed as needed |
Cover Protection | Keeps dirt and water away | When docked or stored | Extends working life |
Best Practices for Ongoing Lewmar Winch Maintenance
Rinsing with fresh water after sailing and applying light oil on the pawls every season extends life. Compare your gear care with others, like Harken models, and you’ll see how service habits matter more than brand. When we consistently service our winches, they stay dependable for years of sailing. A cover also helps protect the unit from dirt and salt.
Recommended Service Intervals for Sailboats
Regular maintenance timing varies with usage and environment. More frequent service is needed in salty waters.
General service recommendations:
- Light use: once a year
- Heavy cruising: twice a year
- Racing: every few months
- After storms: quick check
- Before storage: full service
Tips to Extend the Life of Your Lewmar Winch
Consistent care ensures reliability and smooth performance over time. Small habits can greatly add to long-term durability.
Practical tips for longer life:
- Rinse with fresh water
- Keep it lightly greased
- Cover when not in use
- Avoid forcing under strain
- Store tools nearby
Preventative Measures for Saltwater and Harsh Environments
Salt and grit are the biggest enemies of winch mechanisms. A proactive routine keeps corrosion from setting in.
Preventative actions worth taking:
- Use protective covers
- Apply anti-corrosion spray
- Rinse after each trip
- Grease moving parts often
- Inspect seals regularly