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RF & MF VALVE REBUILDING

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Presentation on theme: "RF & MF VALVE REBUILDING"— Presentation transcript:

1 RF & MF VALVE REBUILDING
RF MF Vavle Rebuild Water King RF & MF VALVE REBUILDING Procedure for replacing piston, o-rings and injectors on Water King 1 ½” Taskmaster Valve. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

2 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Front view of typical RF / MF “Taskmaster” control valve. Note 7 day timer on right hand end of box. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

3 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Drive Motor. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

4 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Piping side of a typical RF / MF “Taskmaster” control valve. Note 1-1/2” connections for service in / out, ½” connection for brine, and ¾” connection for drain. The brine connection is plugged for filter applications. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

5 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King The brine injector is accessed by removing the ½” plug on the side of the valve (or the top, in the case of a top-mounted RF valve), directly between the inlet and outlet test tap ports. A 9/16” combination wrench usually works well for this. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

6 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King After removing the plug, the filter screen and injector can be withdrawn. A pair of small needle-nosed pliers is sometimes required to remove the injector. Make certain that both O-rings are also removed. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

7 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King When installing the injector, make sure to include both the large and small O-rings, and the filter screen. Be sure to use the correct injector for the capacity of the unit on which valve is mounted. The size of the ports in the injector determines the amount of brine that is drawn into the mineral tank during the brine cycle. Incorrect injector sizing will cause either too much or too little brine (salt) usage. This can result in the wasting of salt, incomplete rinsing – resulting in high TDS & high sodium content in the water, or incomplete regeneration, and decreased capacity of the unit. NOTE: A filter valve MUST still contain an injector. The proper injector for a filter is a special “plugged” injector, which does not allow any communication between the inlet and outlet ports during the rinse cycle. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

8 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Remove any scale, corrosion, Teflon tape, or other debris from the seating surface inside the valve. Apply a small amount of silicon grease to the O-rings, and press the injector assembly firmly into it’s seat. Care should be taken to avoid collapsing the filter screen. A blunt object such as a screwdriver handle or wood stick works well for this. Fully inserted, the end of screen will be flush, or slightly below the surface of the valve casting. Re-install the copper plug after applying two wraps of Teflon tape to the threads. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

9 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King PISTON REMOVAL Requires several steps ….. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

10 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Locate the drive link, and note the cotter pin attaching the link to the end of the piston shaft. Using needle-nosed pliers, bend the spread ends of the pin together so that the pin can be pilled out. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

11 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Grab the cotter-pin firmly with a pair of pliers pull straight out. Inspect the pin for wear or damage. Discard if it’s serviceability is at all questionable. Rotate the free end of the drive link away from the piston shaft. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

12 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Using a ¼” allan wrench, completely remove the two bolts and washers holding the plastic end cap in place. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

13 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Gently rotate and/or rock the end cap to break it’s seal. Pull the cap STREIGHT back from the valve body, and slide it past the piston shaft. NOTE that this piece can be easily damaged by hammering or prying, so care should be exercised when removing and re-installing. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

14 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King The cap on the timer end is sealed to the body by an O-ring. Don’t forget the small O-ring inside the casting. This is the shaft seal and should replaced any time the piston is serviced. A small amount of silicon grease applied to the O-ring and inside the casting will make re assembly easier, and help prevent leaks. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

15 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King The same ¼” allan wrench is used to remove the drain casting from the opposite end of the valve. These bolts can be stubborn to remove. A little penetrating oil strategically applied may assist in their removal. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

16 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Inside view of the drain casting with a flow control button, and gasket in place. Note that the flow control button is facing toward the piston. Remove any trash or scale build up. Inspect gasket closely. Replace if damaged, or badly compressed. It’s a lot cheaper to replace it now, than wish you had later. A warped drain casting can also cause leaks. If there are signs of leakage, even though the gasket looks good, check the gasket surface for warpage. This is easily done by placing a sheet of fine sand paper face up on a plate of glass (or other very smooth flat surface), then rubbing the face of the casting over the sand paper. By applying a steady even pressure, and moving in a figure-8 motion, high spots can usually be removed with a few minutes work. Badly warped or damages castings should be replace. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

17 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Behind the drain casting is a plastic “do-nut” with an O-ring on it. Note that one side is flat, and the other has a lip in the center. The flat side must go face out. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

18 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King With the drain casting removed, push the piston assembly out from the timer end. Thumb pressure should be sufficient to move the piston out. If not, check the valve ports for foreign material such as teflon tape, trash, or filter media. Then if necessary, use a section of small PVC pipe, or piece of wood, and a light hammer to drive the piston out. NEVER hammer directly on the piston shaft. Keep in mind that excessive force can ruin both the piston and the valve casting. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

19 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King The piston is drawn out of the valve casting from the drain end. Apply a firm pressure without cocking the piston to the side. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

20 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Typical RF/MF piston assembly. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

21 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King After removing the piston, inspect the bore of the valve casting. All sealing surfaces must be smooth and clean. Any lengthwise scores in the sealing surface will cause leakage past the piston, and improper valve operation. Also check for ridges or groves on the perimeter of the sealing areas. Pay particular attention to this if there has been a complaint of them piston jamming, or hanging up. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

22 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King The piston assembly is held together by bolt threaded into the end of the shaft. This bolt may be difficult to remove, due to time and build up of scale, etc. Care should be taken to avoid damage to the piston, or the bolt, or the fingers. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

23 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King After removing the retaining bolt, the various o-rings, seals, and keepers slide off the end of the shaft. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

24 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Get all your ducks (parts) in a row! There are a lot of small parts in the piston. The best way to keep from getting mixed up, is to lay them out in a row as you take the piston apart. Re-assemble using new seals and o-rings in the reverse order. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

25 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King The drain casting uses a flat rubber gasket. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

26 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Re-assemble the valve in the reverse order. Note that there is a gasket and O-ring required on the drain end of the valve, and 2 O-rings on the motor end of the valve. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

27 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Before re-assembly, the valve casting should be thourghly cleaned. Remove any foreign material, such as rust, scale, and softener/filter media. Apply a light coat of silicon grease to the sealing surfaces and shaft of the piston. Insert shaft end in first from the drain casting end. Hand pressure should be all that is required to press the piston all the way through. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

28 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Coat the O-rings with silicon grease before installing. 1 O-ring piston head seal. Press the plastic piece into the casting until the flat face is even with the gasket surface. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

29 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Install the large and small O-rings on the shaft end seal. Some patience may be required to get the small O-ring into the inside groove of this piece. Slide the end seal over the piston shaft an into recess on the casting. Note: there is NO flat rubber gasket on this end. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

30 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Washers are required on this end to prevent damage to the plastic end cap from the bolts. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

31 RF MF Valve Rebuild Proceedures
Water King RF MF Valve Rebuild Proceedures

32 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King No flat washers are required on this end, but a flat rubber gasket is. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

33 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Tighten all bolts snugly. Excessive tightening will create more problems that it solves! Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

34 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Rotate the piston so that the flat blade of the drive link will slide into the notch. If the link is in the service position, the piston will need to be pushed all the way in before the drive link can be attached. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

35 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Insert the cotter pin and flair the bottom ends slightly. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

36 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Ready to go! Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

37 RF MF Valve Rebuild Proceedures
Water King RF MF Valve Rebuild Proceedures

38 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King “RF” tank adaptor and gasket Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

39 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King A rubber collar is used to seal the tank adaptor to the internal distributor pipe Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

40 RF & MF VALVE TIMER SECTION
RF MF Vavle Rebuild Water King RF & MF VALVE TIMER SECTION Procedure for replacing timer, And solving timer related problems Water King 1 ½” Taskmaster Valve. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

41 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King The timer is attached by two screws through the outside of the box. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

42 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King After removing the two phillips head screws, Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

43 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Withdraw the timer from the box. The wiring harness is unplugged after the timer is removed Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

44 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King If timer is to be completely removed, separate the multi-pin plug, and remove the green ground wire from the timer assembly. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

45 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King PINS mark the time! The number and location of pins in the timer wheel determine the time and duration of each cycle. Each pin or pin hole represents a TWO MINUTE time period. This is a typical FILTER pin configuration. This filter, at the regeneration command, will BACKWASH for 8 minutes – then SETTLE for minutes – then RINSE for 6 minutes. – then return to service. Note: It takes the timer 170 MINUTES (2.8 hours) to return HOME. A second regeneration command can not be started until 170 minutes after the first regeneration was started unless the wheel is rotated by hand. IMPORTANT NOTE: If timer cycles are advanced by hand ( by turning the timer wheel) it is important to stop hand rotation at least 5 minutes rotation prior to the home position. If the timer is not allowed to return to HOME POSITION under its own power, there will be slack built up in the gear train of the timer. If this slack is not made up during the 3 MINUTE start signal from the controller, the wheel will not turn far enough to close the first “run” micro switch, and regeneration will not be carried out. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

46 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King This is a typical softener timing wheel layout. This system will BACKWASH for 10 minutes – then draw brine and slow rinse for 60 minutes – then fast rinse for 10 minutes. Note: It takes the timer 170 MINUTES (2.8 hours) to return HOME. A second regeneration command can not be started until 170 minutes after the first regeneration was started unless the wheel is rotated by hand. IMPORTANT NOTE: If timer cycles are advanced by hand ( by turning the timer wheel) it is important to stop hand rotation at least 5 minutes rotation prior to the home position. If the timer is not allowed to return to HOME POSITION under its own power, there will be slack built up in the gear train of the timer. If this slack is not made up during the 3 MINUTE start signal from the controller, the wheel will not turn far enough to close the first “run” micro switch, and regeneration will not be carried out. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

47 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Timer is in HOME position when the follower on the bottom micro-switch has dropped into the large indent on the wheel. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

48 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King The drive motor will not move the piston out of SERVICE position until the top follower is lifted by the first pin. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

49 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King This tank is in the service position. In a twin alternating unit, it could either on line, or in stand-by waiting for the second tank to be exhausted. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

50 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King SERVICE position Piston is in its full in position. Drive link is pointing straight toward valve body. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

51 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Piston will be as far as possible into the valve. Drive link points directly toward the piston. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

52 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King The piston will not move again until the white follower falls off the last pin (at 10 minutes). The drive motor will then advance the piston the its second position. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

53 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King REGENERATION has started. White pointer is lifted. Drive motor rotates 180 degrees. Piston is in FULL OUT position. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

54 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Piston shaft is fully draw out from the valve body. The end of the shaft will be 2-15/16” from the surface of the end cap. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

55 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Red regeneration light remains on until the valve returns to service position. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

56 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Piston has moved to it’s second position. It will not move again until the top follower is raised by the next pin. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

57 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King BRINE / SLOW RINSE Drive rotates another 45 degrees. Drive link is approximately 90 degrees to valve body. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

58 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Piston is being pushed back into valve. End of shaft is 1-15/16” from the surface of the end cap. This position is critical for proper brine draw! Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

59 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Red regeneration light remains on until the valve returns to service position. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

60 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King About to move to next position. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

61 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King The top follower has been lifted. The piston moves to it’s third (Fast rinse) position and will remain there until the white pointed drops off the last pin. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

62 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King RINSE The white pointer is riding on the second set of pins. The drive link has moved forward another 30 degrees. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

63 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Piston continues to be pushed in towards “service” position. The end of the piston shaft extends 1-7/16” from the surface of the end cap. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

64 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Red regeneration light remains on until the valve returns to service position. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

65 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Heading home! When the pointer drops off the last pin, the drive motor starts again moving the piston back to service position. Even though the valve in in service(or stand-by) position, the timer will continue to run for another 90 minutes, until the back follower drops into the large notch. It is now “HOME” and can start another regeneration cycle. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

66 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Back to service position. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

67 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Piston will be as far as possible into the valve. Drive link points directly toward the piston. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

68 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King This tank is in the service position. In a twin alternating unit, it could either on line, or in stand-by waiting for the second tank to be exhausted. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

69 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King HOME at last. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

70 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King Face of a Model day timer. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

71 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King The timer must to set to the correct time of day. Although having the correct time shown on the timer does not directly effect operation of the valve, The timer is designed to start regeneration at 2:00 AM. If the timer is several hours off, regeneration could begin at a less desirable time. To adjust the time of day, depress and hold down the red button. The outer numbered ring is now free to turn. Spin the time ring until the correct time lines up with the white pointer, then release the red button. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

72 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King The regeneration time can be adjusted. Disconnect the power source. Depress the red button, and rotate the time wheel to reveal the three screws as they pass the indent in the large knob. Loosen each screw slightly to allow the time plate to rotate on the 24 hour gear. Again press the red button, and rotate the 24 hour gear to reveal the black regeneration arrow.(if it has never been changed, it will be aligned with 2 AM) Release the red button. Rotate the time plate until the desired regeneration time aligns with the black pointer. Press the red button and rotate the 24 hr. gear and the time plate together. As each screw is revealed in the notch, tighten each of the three screws. After all three screws are tightened, continue to turn the 24 hr. gear, and again locate the regeneration marker. Verify that time plate did not shift from its desired position. Reset to the correct time of day and restore power to the unit. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

73 RF MF Valve Rebuild Proceedures
RF MF Vavle Rebuild Water King The day(‘s) of regeneration is determined by the pins on the smaller “skipper” wheel. There is one slide for each day. (a 12 day timer will have 12 slides) These pins slide either toward the hub or away from the hub towards the edge of the wheel. A finger will extend past the edge of the wheel when the slider is moved fully out. A regeneration cycle will occur on each day for which the pin is slid out towards the edge of the wheel. No regeneration will take place in the days whose pins are set near the hub. The current day is indicated by the red pointer. If desired, the tripper wheel can be rotated so that the number on the wheel corresponds to a day of the week. For example, you may want to set day 1 as Sunday. Before rotating the skipper wheel by hand, move all slide to the IN position. Then rotate the wheel until the red pointer lines up with the desired day. NOTE: The pointer remains stationary. The wheel does not spin freely, and will snap to each days position. Water King RF MF Valve Rebuild Proceedures Water King Service Proceedures

74 RF MF Valve Rebuild Proceedures
The End Water King RF MF Valve Rebuild Proceedures

75 WATER KING, INC. 102 Charbonnet Road Duson, LA 70529
Phone: (337) Fax: (337) Web site: Water King RF MF Valve Rebuild Proceedures


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