I had the Nikon FMOriginal fatal shutter problem when my camera stopped working during a shoot. I found out that broken plastic collars inside the shutter caused it. After replacing the parts, my FM camera worked perfectly again.
If you’re having trouble with your Nikon FMOriginal shutter, you might notice it doesn’t open at speeds like 1/60 or faster. The curtains may stay stuck together. While the camera is still usable, these problems, along with light-tight issues, could be expensive to repair unless you have a specific model like the 640xxxx series.
Struggling with your Nikon FMOriginal shutter? If it’s not opening at faster speeds, we’ve got solutions! Keep reading to find out how to fix the shutter and maintain your camera for the long run.
What is the Nikon FMOriginal Fatal Shutter Problem? – Understand the issue!
The fatal shutter problem in the Nikon FM refers to a mechanical failure where the camera’s shutter locks up and refuses to fire. This issue is mainly caused by worn-out plastic collars, which play a crucial role in preventing metal components from rubbing against each other.
When these collars degrade, metal parts make direct contact, causing friction and mechanical failure. If left unaddressed, the shutter may become permanently damaged, requiring an expensive repair or replacement.
Symptoms of the Nikon FM Shutter Problem
- Shutter won’t fire or gets stuck mid-cycle.
- Film advance lever feels stiff or jammed.
- Shutter speeds seem inconsistent.
- Camera suddenly locks up during use.
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Causes of the Nikon FMOriginal Fatal Shutter Problem – Explore reasons!
Understanding the root cause of this shutter issue can help in preventing it. Here are the main reasons why the Nikon FM’s shutter fails:
Worn-Out Plastic Collars (Main Cause)
The Nikon FM’s shutter uses small plastic collars to prevent metal parts from touching. Over time, these plastic collars wear out, crack, or break. This leads to the fatal shutter problem, causing the shutter to stop functioning properly.
Metal-to-Metal Contact & Friction
When the plastic collars break down, metal parts inside the shutter start to rub against each other. This friction causes damage and eventually leads to the shutter jamming. The absence of the plastic collars worsens the problem.
Forced Film Advance Lever
Users often force the film advance lever when it gets stuck, putting extra pressure on the shutter mechanism. This pressure exacerbates the damage, accelerating the breakdown of the already worn-out parts.
Lack of Maintenance & Lubrication
Cameras like the Nikon FM need regular servicing to keep them running smoothly. Dried-out lubrication in the shutter can increase wear, causing the parts to degrade faster and leading to shutter problems.
Age of Components
The Nikon FM is a vintage camera, and many units haven’t been serviced in years. Over time, the natural aging of materials contributes to the breakdown of key components, especially the plastic collars in the shutter mechanism.
How to Identify If Your Nikon FM Has This Shutter Problem? – See the signs!
If you suspect your Nikon FMOriginal Fatal Shutter Problem, follow these steps to check for signs of failure:
Step 1: Remove the Bottom Cover
- Use a precision screwdriver to remove the screws at the base of the camera.
- Carefully lift the bottom cover to expose the inner components.
Step 2: Check for Collar Fragments
- Look for small plastic fragments near the shutter mechanism.
- If you find broken collar pieces, your camera is at risk of jamming.
Step 3: Test the Shutter Without Film
- Advance the film lever and press the shutter button.
- If the shutter fires inconsistently or gets stuck, the problem is likely occurring.
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How to Fix the Nikon FMOriginal Fatal Shutter Problem – (Step-by-Step Guide)!
If your Nikon FM is experiencing this issue, follow these repair methods to fix it.
Quick Fix (Beginner-Friendly – No Disassembly Required)
- Remove the bottom cover and locate broken collar pieces.
- Gently clean out loose plastic fragments.
- This may allow the shutter to function temporarily, but it is not a permanent fix.
Advanced Repair (Full Disassembly & Collar Replacement)
Warning: This repair requires expertise in camera servicing. If you are uncomfortable disassembling your camera, seek professional repair services.
Tools Required
- Precision screwdrivers
- Tweezers
- Lubricant (safe for cameras)
- Replacement collars (Japan-sourced tubing)
Step 1: Disassemble the Shutter Assembly
- Remove the bottom cover and identify the three collar positions.
- Disassemble the shutter blade housing and remove the tension from three springs.
Step 2: Replace the Worn Collars
- Carefully remove the damaged plastic collars.
- Replace them with high-quality tubing that matches the exact size of the original parts.
Step 3: Reassemble and Test
- Carefully reassemble the shutter mechanism, ensuring proper alignment.
- Test multiple shutter speeds to confirm smooth operation.
Nikon FM Model Variations and Shutter Differences – Discover differences!
The Nikon FM came in three versions, each with small design changes. The first version had a knurled shutter release ring, speed dial, and rewind knob for better grip. The second version removed the shutter release ring but kept the knurled speed dial. Over time, Nikon also changed the knurled rewind knob to a smooth one, like the Nikon FE.
The third version only kept the knurled speed dial and shared more parts with the FE.Even though the shutter system stayed the same, many Nikon FM cameras now have worn-out collars, which can cause shutter problems. Knowing these model changes helps with repairs and replacements.
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How to Prevent the Nikon FM Shutter Problem? – Prevent damage!
To extend the life of your Nikon FM’s shutter, follow these maintenance tips:
Never Force the Film Advance Lever
If the film advance lever feels stuck, don’t force it. Forcing the lever can cause further damage to the already fragile shutter mechanism. Gently troubleshoot the issue before attempting to advance the film again.
Regular Cleaning & Lubrication
Keep the shutter assembly clean by removing dust and dirt. Apply lubrication that’s safe for cameras to reduce friction and keep parts functioning smoothly. Regular maintenance can help prevent excessive wear over time.
Store in a Cool, Dry Place
Humidity can damage plastic parts in the shutter mechanism, leading to degradation. Store your camera in a dry environment, ideally in a sealed dry box, to protect it from moisture and keep it in top condition.
Have the Shutter Serviced Every Few Years
Have your Nikon FM professionally serviced every few years to ensure the shutter remains in good working order. A complete cleaning and lubrication will prevent problems caused by aging components and keep your camera performing optimally.
FAQs:
Where can I get replacement collars for my Nikon FM?
The original collars are no longer available, but high-quality replacement tubing can be sourced from Japanese suppliers that match the original size and density.
How difficult is it to replace the shutter collars?
Replacing the third collar is easier, but replacing the first and second collars requires removing the shutter blades, springs, and speed governor, making it a complex repair.
Will my Nikon FM work if I don’t replace the collars?
It may continue working for a while, but metal-to-metal contact can cause severe damage to the shutter over time, making repairs impossible.
Can a professional camera repair service fix the Nikon FM shutter problem?
Yes, many camera repair specialists can replace the collars and fully service the shutter for long-term reliability.
Can I still use my Nikon FM if the shutter problem starts?
It depends on how severe the issue is. If the shutter still fires but occasionally jams, it might work temporarily. However, continued use without repair may cause more damage.
Conclusion:
The Nikon FMOriginal fatal shutter problem happens when the plastic collars inside the shutter break. This can cause the shutter to jam or stop working. You can do a quick fix by removing broken pieces, but for a permanent solution, the collars need to be replaced.
This problem can happen in any Nikon FM model since they all use the same shutter design. If you know how to repair cameras, you can fix it yourself with the right parts. If not, it’s best to get professional help. To keep your Nikon FM working well, avoid forcing the shutter and do regular maintenance. With proper care, your camera can last for many more years.
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