New indoor rower + some drag factor/damper data

General discussion on Training. How to get better on your erg, how to use your erg to get better at another sport, or anything else about improving your abilities.

Re: New indoor rower + some drag factor/damper data

Postby jamesg » May 8th, 2017, 1:41 am

One wonders why C2 fits bearings and chains that last for ever, but can't stop dust getting into the cage. Maybe it's intentional, or needless; after all, the lower the better and I don't see why I should second guess C2. Surely it's not beyond us oarsmen to learn to use a fast boat.
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Re: New indoor rower + some drag factor/damper data

Postby hjs » May 8th, 2017, 2:00 am

jamesg wrote:One wonders why C2 fits bearings and chains that last for ever, but can't stop dust getting into the cage. Maybe it's intentional, or needless; after all, the lower the better and I don't see why I should second guess C2. Surely it's not beyond us oarsmen to learn to use a fast boat.


Yeah right. Toprowers often use 140 ish drag, a bit of dust kills that easily.
The chain needs oiling to, easy job but still it has to done. A firty fan can also easily be cleaned, its plain laziness
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Re: New indoor rower + some drag factor/damper data

Postby gcanyon » May 8th, 2017, 10:31 am

Anth_F wrote:Another reason why i would never buy ex gym used machine.


I've seen people at my gym using the rail as a temporary weight rack. I almost yelled at them.
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Re: New indoor rower + some drag factor/damper data

Postby gcanyon » May 8th, 2017, 10:45 am

jimmyshand wrote:The table attached shows the results of my DF/Damper check on 4 machines. It seems that they might need a good clean!


I had the same problem: the one erg at my gym was like your #3, no setting would produce a drag factor >=100. I asked the staff several times to clean it, with no success, until I printed the cleaning instructions and took them in to give to the staff. Thanks to jackarabit for the suggestion! The instruction PDF is here: http://www.concept2.com/files/pdf/us/indoor-rowers/DE_FlywheelCleaning.pdf
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Re: New indoor rower + some drag factor/damper data

Postby nick rockliff » May 8th, 2017, 2:58 pm

Anth_F wrote:
nick rockliff wrote:Got my D back in 2004, don't think I've ever needed to clean the fan housing and lever position in relation to DF hasn't changed. Would think this is because probably 90% of my work has been outdoors.



You have checked the max DF on damper setting 10? That can go down as the machine gets older and used a lot (natural wear and tear)

Shouldn't go down too much though if it's kept clean. If it's never dropped from 123 DF and you never had to change lever position over all these years is good.


Just checked DF on lever setting 10, comes out at 198 which ain't bad after quite a lot of abuse over the last 13 years especially as four of those were out in China with me :D
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Re: New indoor rower + some drag factor/damper data

Postby jimmyshand » May 18th, 2017, 6:14 am

Just a little update on this topic...

I mentioned this issue to the guys who work in the gym, fully expecting nothing to be done but... next time I go in they have cleaned them all. Here's the difference in DF between one machine, with pre-cleaned DF (second column) and post-cleaning DF (final column). I think this is a good result. The machines are about 10 years old.

D
1 72 79
2 77 88
3 85 97
4 91 108
5 98 121
6 105 134
7 112 147
8 119 167
9 121 180
10 125 185
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Re: New indoor rower + some drag factor/damper data

Postby gcanyon » May 19th, 2017, 1:01 pm

Great!
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Re: New indoor rower + some drag factor/damper data

Postby Carl Watts » May 19th, 2017, 11:47 pm

Much better but they probably didn't clean the fan housing 100%. This needs more than a brush or a vacuum it needs soapy water and a bit of a painstaking brush to clean out the holes properly then compressed air and the DF will be in the 200's.

Just finished putting the Model D back together and the DF on 10 is 225.

At least you can now get up to 140 so they are usable again.
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