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Summary of Contents for Durst LABORATOR 184
- Page 1 Instructions for: LABORATOR 184 Counter-weight spring adjustment. DURST-PRO-USA, Inc. 1600 NE 25th Avenue Hillsboro, Oregon 97124 Phone 503 846 1492, fax 503 640 1878 www.durst-pro-usa.com email: durst-pro-usa@msn.com...
- Page 3 Breaking the seal on this envelope, to access the manual, constitutes your full consent to the above – if you do not consent DO NOT break the seal and return the envelope for a full refund – return freight is free of charge using the DURST- PRO-USA, Inc. UPS account # 6404XW.
- Page 4 WARNING! DO NOT ATTEMPT TO CARRY OUT THE SPRING ADJUSTMENT ALONE! SPRING ADJUSTMENT IS A TWO-PERSON JOB. If this person continues the travel of the tool in a downwards direction the force of the spring will make the enlarger travel in the direction of the red arrow, it will pull you of the ladder and possible hit you in the head with the end of the tool.
- Page 5 WARNING! DO NOT ATTEMPT TO CARRY OUT THE SPRING ADJUSTMENT ALONE! SPRING ADJUSTMENT IS A TWO-PERSON JOB. If this person continues the travel of the tool in a downwards direction the force of the spring will make the enlarger travel in the direction of the red arrow, as soon as you start the upwards motion.
- Page 6 The two springs inside the spring hous- ing are each 4” wide, 1/8” thick and fastened to a ½” chrome steel axle. The front plate on the spring housing is 4mm thick plate aluminum. If the spring is allowed to uncoil uncontrolled it will knock off this plate, ripping ALL SIX 4mm screws from their sockets.
- Page 7 On this picture you will see the effect of a spring accident. The force of the spring knocked the ½ - 1” thick alumi- num housing almost ½ inch out of shape. If you look careful at the image below you can see that the entire 10 pound alu- minum housing has been knocked out of shape by more than 1/4”.
- Page 8 The correct way to work SPRING ADJUSTMENT IS A TWO-PERSON JOB. This is the correct way to operate the spring tension tool. The person hold- ing on to the chassis should be able to exert a force equal to lifting approx 50 pounds.
- Page 9 MANUAL FOR SPRING TENSION AND SPRING REPLACEMENT ON A DURST LABORATOR 184. REMOVE THE LIGhT HEAD FROM THE ENLARGER and drive the head carriage to its BOTTOM position, this will move the camera out of the way andit will ensure that the spring-wire is in its most exposed position.
- Page 10 In order to remove the camera on an L184 it is only necessary to remove one screw. When this screw is removed the camera will slide off the support arm. Here it is also helpful to be two persons, one per- son to hold on to the chassis and one to pull the camera off.
- Page 11 Move the enlarger head / head carriage to it’s bottom position. Moving the head to to the bottom posi- tion will thighten the counter weight spring .Continue by removing the cover from the right side of the spring housing. Please NOTE the round hole inside the chrome axle.
- Page 12 Install the tension tool on the bolt on the left side of the spring housing. Slide the tool onto the chrome nut in a position approximately as shown. SECURE the tool with the enclosed 4” long bolt, the bolt screws into the threaded hole in the end of the chrome axle.
- Page 13 with a cross rod for this purpose. If the tool is not equipped with a cross rod use tape or a rubber band to make sure that it will not slide and loose the grip on the tension tool. This whole procedure is done with the purpose of rendering the wire slack enough to make it possible to remove the wire on the right side of the spring hous-...
- Page 14 When the wire disk in the right side has Tighten the spring entirely without been removed and the wire hanging loose any wire disks installed in either side. it is possible to bring the tension tool back A)Release the spring 0.5 to 1 turn. to a position where it is parallel with the B) Install the “C”...
- Page 15 portant to keep the wire tight. If it gets caught between the spring housing and the wire disk it will get “kinked” and you will have to start all over again. A) When the spring is completely tight- ened secure the tension tool using the “C” bracket B) Remove the nut in the left side of the spring housing.
- Page 16 RESUME: Head carriage in bottom position. Spring is tight. Install tension tool Turn to slack wire. Secure tension tool with “C” bracket. Remove wire disk in opposite side of tension tool. Slack spring until it is fully slack or blocked by wire taken up. Install nut and pin in side without wiredisk installed.
- Page 17 Note. It is possible to simplify the process by using the locking feature built into the spring housing. The two screws indicated with arrows are lock screws that can be used to lock the two wire wheels in position, one at a time, without using the tension tool to lock the spring.
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