1.

Turn off system.
 

2.

Disconnect air supply to sampler.
 

3.

Use a 5/16" nut driver to remove bolts around the perimeter of the cover.
 

4.

DO NOT PUT PRESSURE ON WEIGH PLATE! LOAD CELL IS VERY SENSITIVE!
 

5.

Using a 7/16" wrench or socket to remove the 2 lower load cell bolts which exit from the bottom of the sampler unit.
 

6.

Remove the lower load cell spacer.
 

7.

VERY IMPORTANT!!!
SECURE THE WEIGH PLATE WITH THE 8 THUMB SCREWS (4 ABOVE AND 4 BELOW) SO THAT THE WEIGH PLATE IS SUPPORTED ABOVE THE BASE. THE LOAD CELL SHOULD NOT TOUCH ANY PART OF THE BASE. LEAVE THE LOAD CELL ATTACHED TO THE WEIGH PLATE.
 

8.

Once the load cell and weigh plate are secured, replace cover and remove Reliadens from mounting. (Disconnect 2 solenoid connectors and load cell wire.)
 

9.

If possible take Reliadens to clean work area for remaining service. It is easiest to work on if placed on a large bench or table.
 

10.

Once in work area remove cover and scraper hood with 5/16" nut driver.
 

11.

Using a phillips screwdriver, remove the two machine screws that attach the Pneuturn unit and spacer to the weigh plate. Note: It may be necessary to remove the red plug in the base to allow for easy access. If plug is removed, replace it when reassembling the unit. Use silicone to hold it in place.
 

12.

Using a 9/16" wrench or socket, remove the 2 bolts that hold the bearing mount in place.
 

13.

Note: This next procedure is easiest with 2 people.
 

14.

Support both ends of the cylinder assembly. Using a small torch, gently heat the shaft and cup collar area around the shaft. DO NOT MAKE THE AREA RED HOT ! Attempt to keep cup as cool as possible The heat helps loosen the adhesive which holds the cup on the shaft. Quickly tap the pin out of the cup collar and air cylinder shaft. This may require a mild amount of force. If pin does not want to come out, continue to heat the area.
 

15.

Take the Pneuturn and cylinder and lay them flat on the bench. Gently tap out pin that connects the cylinder to the shaft connector. DO NOT USE HEAT ON THIS PIECE! Unscrew the cylinder from the shaft connector.
 

16.

Remove brass nose piece and bearing from old cylinder and install them on new one. Always use Loctite #242 (Service Removable) on fasteners. Tap the bearing off the old cylinder and on to new one with a non-metallic hammer.
 

17.

Thread new cylinder into shaft connector. Screw in all the way.
 

18.

Place cup on new cylinder shaft for alignment purposes.
 

19.

When Pneuturn is rotated fully clockwise (viewing from in front of the cup) the cup should be upside down. It sometimes helps to place a piece of tape between cylinder and shaft connector so that the cylinder does rotate inside the shaft connector during this test.
 

20.

Once proper rotation is confirmed drill out the shaft connector hole with a 3/16" bit.
 

21.

Remove cup from shaft and install cylinder assembly in base.
 

22.

Apply Loctite #609 to coupling on cup. Re-install cup to shaft making sure it is installed properly. Check rotation and air cylinder clearance.
 

23.

Drill 3/16" hole in the shaft and install Stainless Steel "Groov-Pin" with Loctite #609.
 

24.

Replace 2 Pneuturn machine screw using Loctite #242 and do the same with the 2 bolts for the bearing mount. Again check alignment and proper rotation. Remember the cup should be upside down when rotated fully clockwise, and right side up when rotated fully counter clockwise.
 

25.

Replace cover and scraper hood.
 

26.

Re-install sampler in plant.
 

27.

Remove cover.
 

28.

Replace lower load cell spacer and 2 bolts. (Loctite #242 on bolts) Check proper alignment and TORQUE TO 150 INCH POUNDS.
 

29.

Re-attach air supply and turn power "on."
 

30.

Check for proper mechanical action. Replace hood.