Tighten Model D PM5 arm?

Maintenance, accessories, operation. Anything to do with making your erg work.
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multi21
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Tighten Model D PM5 arm?

Post by multi21 » November 26th, 2023, 10:09 pm

Hi all, I have a 15” screen mounted on the tablet holder that came with my RowErg (purchased 2022). The monitor arm is leaning forward and I cannot for the life of me figure out how to tighten it. I have tried holding one end of the bolt holding it in place with a pair of pliers and tightening the other, with no success.

I saw a diagram online with instructions on adjusting the arm but it seems to be an older version that does not match the arm on my machine. (https://www.concept2.com/files/pdf/us/i ... stment.pdf)

Would be grateful for any advice!

Cyclist2
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Re: Tighten Model D PM5 arm?

Post by Cyclist2 » November 26th, 2023, 11:05 pm

You need a 9/16" wrench, or two. On the machine end of the monitor arm, you need two. On the monitor end of the arm the head of the bolt is held in the arm, you need the 9/16" wrench on the other side.
Mark Underwood. Rower first, cyclist too.

gvcormac
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Re: Tighten Model D PM5 arm?

Post by gvcormac » November 27th, 2023, 8:59 am

That's a lot of weight for a pivot-friction-held cantilever arm. I'm not sure that any amount of tightening will be satisfactory, but your can try. You might break the platic core if you tighten too much.

I can think of alternative solutions, but they aren't all that pretty. One is a bungee cord on the back spine attached near the monitor and perhaps around the top of the front leg. Another is to install a counterweight: Something like an ordinary hammer with handle strapped to the cantilever, and head hanging as far as possible away from the screen.

multi21
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Re: Tighten Model D PM5 arm?

Post by multi21 » December 2nd, 2023, 11:44 pm

Cyclist2 wrote:
November 26th, 2023, 11:05 pm
You need a 9/16" wrench, or two. On the machine end of the monitor arm, you need two. On the monitor end of the arm the head of the bolt is held in the arm, you need the 9/16" wrench on the other side.
Worked perfectly, thank you! Just needed a bit of tightening.

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