[CAUT] New Renner underlever system

[Alan McCoy]

One thing though is that before installing the springs, tighten them. It's
easier to tighten them before installation than after. Once installed, then
measure tension and weaken them as needed per spec.

Alan


-- Alan McCoy, RPT
Eastern Washington University
amccoy at mail.ewu.edu
509-359-4627
509-999-9512


> From: Jim Busby <jim_busby at byu.edu>
> Reply-To: "College and University Technicians <caut at ptg.org>" <caut at ptg.org>
> Date: Tue, 06 May 2008 10:40:17 -0600
> To: "College and University Technicians <caut at ptg.org>" <caut at ptg.org>
> Conversation: [CAUT] New Renner underlever system
> Subject: Re: [CAUT] New Renner underlever system
> 
> List,
> 
> I might point out that Rick says the picture on the Renner site shows the
> posts flipped BACK, but Rick says they should be forward.
> 
> Jim Busby
> 
> ________________________________
> From: caut-bounces at ptg.org [mailto:caut-bounces at ptg.org] On Behalf Of Jim
> Busby
> Sent: Tuesday, May 06, 2008 10:19 AM
> To: College and University Technicians
> Subject: Re: [CAUT] New Renner underlever system
> 
> 
> List,
> 
> A "duh" moment... (Rick Baldassin is close by and he helped write the manual.
> Probably should have consulted him first.)
> 
> I called Rick and he says to measure the grams "with the underlever horizontal
> and the posts tipped forward".  Luckily this is how I have (inadvertently)
> been doing it.
> 
> As I tried several methods it came out quite different. Posts tipped backwards
> = about 2 grams less. At rest vs. horizontal = about 4 grams difference. Rick
> says this will make a big difference in the touch and that using the grams
> recommended in the manual should give the best outcome.
> 
> Use a scale under the tray with the tray on blocks if you don't have the right
> gauge.
> 
> Jim Busby