-------- Original Message -------- Subject: RE: Broken map drawers]] Date: Wed, 11 Aug 2004 14:39:55 -0400 From: Barry, John W. [C] <[log in to unmask]> To: 'Maps and Air Photo Systems Forum' <[log in to unmask]> ------------------ If you decide to grease your bearings (or other metal to metal surfaces), use White Lithium grease, a non-petroleum-based corrosion- and oxidation-resistant lubricant that goes on (and cleans up) easily. John W Barry [C] National Geospatial-Intelligence Agency (NGA) Software Engineer EDC / e-Library Team Bethesda, MD (T) 301-227-2103 (F) 301-227-5059 "To understand your enemy, you must walk a mile in his shoes. Then, if he is still your enemy, you are a mile away and he has no shoes." -----Original Message----- From: Johnnie D. Sutherland [mailto:[log in to unmask]] Sent: Wednesday, August 11, 2004 1:25 PM To: [log in to unmask] Subject: Re: Broken map drawers]] -------- Original Message -------- Subject: Re: Broken map drawers] Date: Wed, 11 Aug 2004 09:03:49 -0700 From: Brian Bach <[log in to unmask]> To: [log in to unmask], [log in to unmask] ------------------ Ilene, Having achieved a sort of mechanical apprenticeship tinkering with old DeSotos and Chrysler Imperials in my youth, I consequently feel confident enough to effect nearly all map drawer maintenance myself. Most problems have to do with the guide wheels, as you have pointed out. I've found that the screw or bolt that mounts the wheel to the framework has sometimes come loose, so that the wheel wobbles and causes all sorts of mayhem, including scraping (metal filings are a telltale sign!) and misalignment. Solution: tighten said screw or bolt - firmly. There should be some sort of lock washer in there to keep it tight. Otherwise, it's pretty much a case of lubrication. I would avoid using WD40. Though it is heavily marketed as a fix-all solution, it tends to dry out mechanisms over time, and thus is only a quick fix. The best lubrication is grease, boldly but discreetly slapped into the 'race', that orbital channel where the ball bearings live. This should be sufficient for years, depending on usage. Also, check to see if the ball bearings themselves are intact. Work the lubrication around by moving all the parts to ensure complete coverage. Map drawer wheels aren't on the same plane as say, the running gear in a diesel/electric locomotive, but the principles of lubrication are the same. Any automotive store will have grease of all kinds. Just tell 'em what you need it for. If the grease factor is a bit forbidding, good old 3-in-1 oil will suffice, but because it's a pretty lightweight oil, it won't have the same staying power. This process is one of the very few activities in which one can literally get one's hands dirty in a Map Room. Hope this helps. Good luck. Brian Brian P. Bach Maps Specialist Documents/Maps Brooks Library Central Washington University 400 E. University Way Ellensburg, WA 98926-7548 USA [log in to unmask] >>> [log in to unmask] 8/10/2004 1:36:43 PM >>> -------- Original Message -------- Subject: Broken map drawers Date: Tue, 10 Aug 2004 13:20:35 -0600 From: Ilene Raynes <[log in to unmask]> To: <[log in to unmask]> ------------------ The Map Library at the University of Colorado is in the midst of a large collection shift and we're quickly discovering that many of our map drawers are in need of repair (they stick and/or are hard to close and open). We've called in facilities management and they've managed to make a few drawers a bit better, but many are still in bad shape. Has anyone had experience getting their map drawers fixed? If yes, who did you call? Has anyone ordered new wheels for map drawers? How about ordering new drawers to fit existing cabinets? If yes to either of these questions, who did you contact for these services? Finally, has anyone tried good old-fashioned oiling w/WD40? We'd of course take the maps out of the cases before trying this. Any suggestions would be greatly appreciated. Thanks- Ilene Ilene Raynes Jerry Crail Johnson Earth Sciences and Map Library University of Colorado - Boulder Campus Box 184 Boulder, CO 80309 (303) 492-4487 [log in to unmask]