From ard@siva.bris.ac.uk Mon Sep 5 09:11:46 PDT 1994 Article: 3002 of vmsnet.pdp-11 Newsgroups: vmsnet.pdp-11 Path: nntp-server.caltech.edu!elroy.jpl.nasa.gov!usc!howland.reston.ans.net!pipex!warwick!bsmail!siva.bris.ac.uk!ard From: ard@siva.bris.ac.uk (PDP11 Hacker .....) Subject: Re: Low-Cost OS Software for Home & Museum Use (was: Micro PDP-11 - is...) Message-ID: <5SEP199416423227@siva.bris.ac.uk> News-Software: VAX/VMS VNEWS 1.41 Sender: usenet@info.bris.ac.uk (Usenet news owner) Nntp-Posting-Host: siva.bris.ac.uk Organization: University of Bristol Physics Department References: <1994Sep2.134621.8572@muvms6> <> <33nu3s$kv6@paperboy.ids.net> <33t2gp$lvq@umbc8.umbc.edu> <1994Aug31.172557.8504@muvms6> <4SEP199410144430@almach.caltech.edu> Date: Mon, 5 Sep 1994 15:42:00 GMT Lines: 51 In article <4SEP199410144430@almach.caltech.edu>, shoppa@almach.caltech.edu (Timothy D. Shoppa x4256) writes... >In article <258202905wnr@candub.demon.co.uk>, agd@candub.demon.co.uk writes... >>In article: <1994Sep2.134621.8572@muvms6> copley1@muvms6.wvnet.edu (Ronald Copley) writes: >> >>> We need a "How to Ship/Pick Up a PDP" FAQ! >> >The procedure for locking the heads (and drive motors, where appropriate) >is usually very simple. As a matter of fact, it is usually perfectly >obvious if you take a peek inside. I'll try to prepare a simple >little FAQ for some common drives. (RL0n, RM0n, RA60, RA8n, and >RK05 are the ones I have experience with & manuals for.) Lets see now : RK05 : Remove top cover (10 screws). Check that positioner assembly is fully retracted into the large magnet at the rear. If a pack is present, remove front plate on the underside of the drive, and fiddle with the rotary solenoid to release the front door. Slide pack out, and ship separately. Now lock positioner - there is a small 'L' shaped bracket on the magnet casing. Unscrew this, use to hold the coil inside the magnet, screw back in place, so that the positioner coil can't move. Refit top cover. RK05j - as RK05 RK05f : Remove top cover, leave pack (fixed pack) in place. Lock positioner as for RK05. Refit cover RL01/02. Should not need locking - positioner is quite stiff. But, remove access cover on top, and release pack access door. Lift Read/Write module and check heads are fully retracted. Remove pack if present. There is a locking bracket on the positioner chassis, accessable from inside the pack holder, unless I've forgotten something. Reassemble drive RK06/07. These drives are self-locking, but it's worth removing the rear access cover (2 screws), and checking the positioner is fully retracted and locked. Remove pack if present by inserting a screwdriver blade above the catch button on the front and pushing inwards. Open door, retract brushes with the knob inside, remove pack. Reassemble R80, RA80, RM80. Open main upper chassis (not logic cover) by inserting a screwdriver into the front catch and swinging the cover up. Lock the head positioner with the white catch on the HDA casing. Release the belt tension with the lever on the right. >Tim. (shoppa@altair.krl.caltech.edu) >Kellogg Radiation Lab, Caltech. -tony Bristol University takes no responsibility for the views expressed in this posting. They are the personal views of the user concerned.