Single to dual brake pedals

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regular122
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Single to dual brake pedals

Post by regular122 » Tue May 05, 2020 10:13 pm

I recently purchased a set of dual brake pedals to convert my single set. I am guessing these will use the same brake system that the single set uses but the system of levers applies pressure from the right seat. Are there any pitfalls or advice I should be aware of on installation? Steve
Dual Brake Pedals.jpg
Dual Brake Pedals.jpg (119.98 KiB) Viewed 252 times

V529
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Re: Single to dual brake pedals

Post by V529 » Wed May 06, 2020 12:40 pm

It helps to know someone that is very flexible............Other than that. A straight forward installation. No surprises.

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6643
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Re: Single to dual brake pedals

Post by 6643 » Wed May 06, 2020 2:03 pm

IIRC, those bearing blocks are magnesium. Unless they're in pristine shape, get the plastic replacements. Tape the nut to the tip of your finger and hold it in place while you thread each bolt in... (Find the right finger tip ahead of time!)

regular122
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Re: Single to dual brake pedals

Post by regular122 » Wed May 06, 2020 8:48 pm

Thanks guys! I will let you know how it goes. Steve

regular122
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Re: Single to dual brake pedals

Post by regular122 » Sun May 10, 2020 7:19 pm

OK guys, dumb question time. Are there still only two springs when you convert the single brake set of peddles to the dual? Or are there four? The parts manual only shows a diagram of single brake peddles and the forum Cessna Reference Manual has nothing at all. Reason I ask is that the set I purchased is missing the spring with the long hooks and its attaching clip (see attached pic). Can I just migrate the existing springs on my single set or do I need more than two springs? Any help is appreciated.
Dual Brake Pedals back.jpg
Dual Brake Pedals back.jpg (117.62 KiB) Viewed 156 times
And John, thanks for the note on the magnesium. We went back and gave them a careful look. They appear to be in good shape. If one were to get the plastic mounts, where is the source for those? Are the plastic mounts for the Cessna 150 interchangeable? Thank you. Steve

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Re: Single to dual brake pedals

Post by 2356 » Sun May 10, 2020 11:20 pm

There will only be two springs. The 150 bearing blocks are the same.

regular122
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Re: Single to dual brake pedals

Post by regular122 » Mon May 11, 2020 9:48 am

Thank you!

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Re: Single to dual brake pedals

Post by regular122 » Sat May 23, 2020 3:51 am

Another dumb question -- does this installation require an STC & 337 given this was optional factory equipment? Thanks, Steve

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Re: Single to dual brake pedals

Post by 6643 » Sat May 23, 2020 11:49 am

No. An STC is approval to install something that is not otherwise approved. Any thing on the type certificate is automatically approved and the installation is a minor modification. An STC amends the type certificate.

A 337 is the form used to record a major repair or a major modification. Not major, no 337...

regular122
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Re: Single to dual brake pedals

Post by regular122 » Sat May 23, 2020 12:54 pm

Thank you.

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