Apple 400k Floppy Drive Lube Repair [1984 Macintosh]
Lubrication is the most common repair for the 400k floppy drive (OA-D34V) used in the Macintosh 128k and Lisa 2 in 1984, as well as the 512k and Macintosh XL in 1985. My video shows what you need to know.
☝️ If my video helped fix your 400k drive, I would appreciate your visiting my iFixit page to click the blue « Give the author +30 points! » button here: https://bit.ly/2FTBHiM
0:00 Intro
0:20 Opening the Mac
2:10 Discharging the CRT
3:58 Removing Motherboard & Floppy Drive
6:56 Cleaning Moving Parts
10:25 Head Cleaning
11:16 Lubrication
17:01 Reassembly
23:34 Testing
27:18 Closing Thoughts
📝 NOTE: This video does not cover all possible problems that could be wrong with your single-sided 400k floppy drive. The lubrication repair shown is usually sufficient to fix most 400k drives because hardened grease has prevents key mechanical parts from moving. Also note the later Macintosh 512Ke and Plus (1986) have 800k floppy drives which are not covered by this video guide (drive lubrication points are different).
🛠️ Required Items:
• Torx T15 with LONG neck: https://amzn.to/2ScAskx
• Bulldog Clip (helpful to pry off back case): https://amzn.to/2H7lIhF
• 99% ISO Alcohol: https://amzn.to/39IAnPy
or
• 99.9% ISO Alcohol: https://amzn.to/2MkjS3h
or
• 99% ISO Alcohol: https://amzn.to/2YsK8v3
💁♂️3 alcohol choices because it’s often out of stock. 70% will work, 91% is better, but 99% is best for electronics cleaning.
• Silicone Grease: https://amzn.to/2UbTASh
or
• Super Lube 21030 Synthetic PTFE Grease (NOT Silicone!): https://amzn.to/3f54Hn7
• Cotton Swabs
• Phillips Screwdriver (+)
• Anti-Static Wrist Strap: https://amzn.to/2uSTy74
• Flat-head (-) Screwdriver (for CRT discharging)
• Wire with alligator clips at both ends (for CRT discharging)
🔋 PRAM Battery: https://amzn.to/2R1qYZE
💵 NOTE: Your price on Amazon (US only) is the same even if you don’t click the « amzn.to » Affiliate links above, but if you do kindly click and purchase within 24 hours, Amazon may pay me a small commission on all qualifying items in your Cart (even items not linked above).
📚 Useful Information:
• 400k Floppy Drive Specifications: https://bit.ly/2T5sNGC
• Lubrication Tips: https://bit.ly/35rMN8Y
• Clicking sound Fix: https://bit.ly/36yTjfB
• « Disks always locked » cause: https://bit.ly/2QVbh5l
🗣 Join us at http://68kmla.org and the « Vintage Apple Macintosh Enthusiasts » FaceBook group for more vintage Mac tips, trade and help.
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