Mystic meter repairs
Cylinder replacement
Repairs on meter should take place on a clean flat surface. Container for loose parts is handy. Cleanliness is important for best results. The need for cylinder replacement is typified by the meters inability to deliver specified quantities of tanning lotion. Hesitation for lotion to deliver at nozzles during a tan cycle will be first indicator.
Running a full tan cycle without wash, prior to removal of meter from booth, will reduce amount of tanning fluid residual in cylinders. Wiping rags/towel should be handy during work.
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- With meter removed from booth and on bench, remove checkvalves from tubing, remove four screws that secure cover to meter. |
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- Taking care not to injure wiring, remove four screws that hold connector and remove the connector from the housing. |
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- Slide meter out of housing to expose washdown button and remove washdown button. |
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Telemecanique switch can be removed by release contact block from rear of bushbutton.
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IDEC switch is removed by first prying out the lens cap, then screwing off the silver retaining ring. The contacts together with pushbutton can then be removed.
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- Remove meter and hoses from housing. Remove hoses from cylinder barbs. |
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- Remove reed switch clamp screws and clamps. Switches are delicate. |
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- Use 1/2" wrench to remove nuts from end of rods on 3 solution cylinders. - 11/16" wrench is required remove nut from end of rod on wash cylinder. |
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Make sure to retain all nuts and bushings from disassembly. Do not push rods into cylinders as fluid may be present in cylinders. |
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- While securely bracing meter, use a 15/16" wrench to remove cylinder retaining nuts. Remove cylinder from assembly . Repeat for remaining cylinders. |
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Meter drive and meter cover can now be wiped to clean. Do not immerse meter drive in wash. |
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Follower plate can be unscrewed from drive screw to assist in cleaning. |
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- From all cylinders, remove checkvalves, and brass fittings. All fittings should be cleaned of sealing tape. Use compressed air to clean inside of fittings. |
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- Assemble fittings onto new cylinders, using sealing tape on threads.
solution cylinder wash cylinder wash plus 3 lotion |
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- Prior to assembly,ensure sufficient clearance between cylinder and meter drive. |
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It may be necessary to increase clearance by filing the relay mounting plate with a file. The extended hex standoff may also require slight rotation to provide cylinder clearance. |
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- Clean drive screw by wiping with a cloth. Screw follower plate onto drive screw several turns. Do not lubricate screw at this time to prevent contamination during assembly. |
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- Mount cylinders into meter using Loctite on threads. Do not over tighten nuts as rod binding may occur. Position brass barbs to point toward centre of meter. |
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Wash cylinder requires a spacer
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Use Removable (Blue) loctite
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** At least one cylinder must have a magnetic piston in order to actuate the reed relays.** |
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It's position within the meter is important so that it fits with the wiring harness. This cylinder is located diagonally across from the larger wash cylinder. |
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- Apply narrow style nuts and the brass bushings onto rod. Nuts only need to be hand tight. Do not grip cylinder rods with wrench.Wash cylinder does not have a bushing. |
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- Pull cylinder rods into follower plate. make sure bushings are in bore. With Loctite on threads, apply nuts. Do not grip cylinder rod. Nut should be snug, not overly tight. Cylinder rods should be free to float in the follower plate. Loctite will hold the nut in place. |
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- Install reed switches onto cylinder with clamps. The switches are used to prevent the drive from running past the ends of the cylinder stroke. The switches are adjusted by sliding them up or down the length of the cylinder. Position as per photo. Adjustment procedures can be found here. |
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- Cut 4 pieces 24" flexible 1/4" tubing. install onto lower barbs of all four cylinders. |
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- Install wash pushbutton |
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- Feed hoses through appropriate holes in cover and lay meter into cover. Install connector with four screws. |
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- Position meter and install the four cover to meter screws. |
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- Lubricate the drive screw with white lithium grease |
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- Attach checkvalves to hoses with arrows pointing towards meter. |
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- Turn meter speed potentiometer fully clockwise. Speed adjustment will be made when meter is installed into booth. Meter now ready to install. |
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