30110-29 - McCrometer
Contents
1. out of the propeller Loosen the nylon point set screw 2 holding O the thrust bearing cartridge 3 If the thrust bearing car tridge was removed in the previous step it must be reinstalled in the 2 2 nose of the propeller at this time Thread the thrust bearing cartridge 0 3 into the propeller until it contacts the reverse thrust bearing Figure 2 1 cartridge 14 Continue to thread the thrust bearing cartridge into i the propeller until the ceramic thrust bearing cartridge and reverse thrust bearing cartridge are pushed out the back of the propeller Ceramic bearing cartridge 9 and drive magnet 8 should be cleaned of any foreign material and inspected for damage Using a bottle brush thoroughly clean the inside of the ceramic bearing cartridge 9 and the magnet inside diameter 8 After cleaning the propeller flush the inside out with water The outside surfaces of the propeller should also be cleaned to assure a smooth unrestricted flow across the surface of the propeller Do not use an oil based solvent in cleaning as damage to the assembly could occur Figure 3 by removing the four mounting screws 11 which thread into the gearbox drop pipe Separator o ring 13 included with the conversion kit should be covered with a thin coat of silicone grease The new one piece separator support spindle assembly 12 can then be installed in the front of the gearbox drop pipe with a firm push2. gently rotating the assembly at the same time Replace and tighten the four separator mounting screws 11 reverse thrust bearing cartridge Remove the thrust bearing cartridge 3 2 30110 29 Rev 1 4 07 09 so that it does not interfere with assembly and installation of the propeller Insert the threaded reverse thrust bearing cartridge 15 6 into the propeller with the thrust bearings pointing toward the back of the propeller Be sure the reverse thrust bearing cartridge slides all the way to the bottom of the propeller cavity Insert the ceramic bearing cartridge into the propeller with the tab on the cartridge aligned with the slot inside the propeller cavity The hole for the ceramic bearing cartridge retaining screw should line up with the hole in the side of the propeller Press the cartridge into the propeller until it stops against the shoulder in the propeller Now install the magnet and magnet retaining plate Install and tighten the magnet retaining plate screws 6 and the ceramic bearing cartridge retaining screw 5 do not overtighten 2 PROPELLER ASSEMBLY installation is now required This meter is now equipped with one piece separator spindle and threaded reverse thrust bearing cartridge The installation procedures are different than what you may have used in the past Read these instructions on installation of propeller before proceeding Note A note should be made on your original service manual for this meter
3. one half turn counterclockwise Tighten the set screw in reverse thrust bearing cartridge There should be approximately 02 clearance between the gearbox drop pipe and trailing edge of the propeller when the propeller in pulled forward away from the gearbox drop pipe The propeller must not contact the gearbox drop pipe 1 2402 1 Figure 5 6 fig 6 THRUST BEARING CARTRIDGE ASSEMBLY 3 should be inspected for dam age and replaced in the nose of the propeller The thrust bearing cartridge 3 is used to adjust the amount of longitudinal end play of the propeller assembly on its spindle 12 which should be about 1 64 inch End play can be adjusted by turning the thrust bearing cartridge assembly 3 clockwise until it tightens against the end of the support spindle 12 then turning thrust bearing cartridge 3 counterclockwise 1 8 of a turn Tighten set screw 2 Check the longi tudinal end play of the propeller to ensure it s not excessive and does not allow the propeller to contact the gearbox drop pipe Check the clearance between the propeller and gearbox drop pipe The clearance should be approximately 010 between the gearbox drop pipe and trailing edge of the propeller when the propeller in pushed back toward the gearbox drop pipe The propeller assembly must spin freely 7 PROPELLER BEARING can be checked for excessive radial play by rocking the propeller gently from side to side on the spindle Som
4. 30110 29 Rev 1 4 07 09 ATER PECIALTIES PROPELLER METER CONVERSION INSTRUCTIONS FOR STANDARD SPINDLE TO ONE PIECE SEPARATOR SPINDLE AND THREADED REVERSE THRUST BEARING FEATURING ONE PIECE SEPARATOR SPINDLE WITH CERAMIC SLEEVE BEARING CERAMIC BEARING CARTRIDGE PROPELLER THREADED REVERSE THRUST BEARING CARTRIDGE E McCROMETER 3255 WEST STETSON AVENUE HEMET CALIFORNIA 92545 7799 U S A PHONE 951 652 6811 FAX 951 652 3078 VISIT OUR WEBSITE Www mecrometer com 30110 29 Rev 1 4 07 09 he following instructions are intended to guide you through a change over from a standard spindle configuration to a one 4 PROPELLER must now be reassembled with the new threaded fig 1 PROPELLER REMOVAL be accomplished by first turning the fig 2 2 1 CERAMIC BEARING CARTRIDGE 9 drive magnet 8 fig 3 SEPARATOR amp SPINDLE ASSEMBLY 10 must be removed piece separator spindle amp threaded reverse thrust bearing cartridge It is necessary to remove the standard propeller assembly replace the standard reverse thrust bearing cartridge assembly with a threaded version and remove and replace the separator spindle with a one piece separator spindle assembly 3 O clock position propeller so that the allen wrench clearance hole is at the 3 o clock position for set screw when facing the front of the propeller to line up with the set screw 1 in the
5. e play 15 required for proper operation of the water lubricated ceramic sleeve bearing 30110 29 Rev 1 4 07 09 ONE PIECE SEPARATOR SPINDLE WITH THREADED REVERSE THRUST BEARING CARTRIDGE PARTS LIST 1 1101 8 5 SET SCREW REVERSE THRUST BEARING CARTRIDGE 1 1125 6 SET SCREW THRUST BEARING CARTRIDGE 3 2356 THRUST BEARING CARTRIDGE ASSEMBLY SUPPORT SPINDLE 1 1116 8 6 SCREW CERAMIC BEARING CARTRIDGE MOUNTING 1 1115 3 18 SCREW DRIVE MAGNET RETAINING PLATE 1 2428 DRIVE MAGNET RETAINING PLATE 1 1601 2 DRIVE MAGNET 4 2426 A CERAMIC BEARING CARTRIDGE ASSEMBLY SEPARATOR ASSEMBLY WITH SPINDLE NON THREADED 1 1103 8 7 SCREW SEPARATOR SPINDLE MOUNTING 4 2455 2 SEPARATOR SUPPORT SPINDLE ASSEMBLY THREADED O RING SEPARATOR REVERSE THRUST BEARING ASSEMBLY NON THREADED 3 2402 2 REVERSE THRUST BEARING ASSEMBLY THREADED Consult factory for complete part number NOTE Please refer to your meter service manual for complete parts and price list information CONVERSION KIT SHOULD INCLUDE Service manual for meter with one piece separator spindle Conversion instructions Separator and support spindle assembly threaded 4 2455 2 item 12 Reverse thrust bearing assembly threaded 3 2402 2 item 14 Bearing Tool 2 2402 1 Separator o ring 1 1551 24 item 13 O
6. indicating that the meter is now equipped with a one piece separa tor spindle and threaded reverse thrust bearing cartridge You should have received a new service manual with the conversion kit If you did not receive a new service manual contact McCrometer for the proper manual Figure 4 5 fig 5 PROPELLER INSTALLATION is accomplished by following these steps a The reverse thrust cartridge set screw 1 should be protruding out of the reverse thrust bearing cartridge so it will not bind up on the spindle thread NOTE Look through the end of the propeller and hole in the reverse thrust cartridge to be sure the set screw is not showing b Slide the propeller assembly onto the support spindle 12 until the reverse thrust bearing cartridge 15 contacts the threads on the end of the spindle 12 Using Tool T 2402X 1 thread the reverse thrust bearing cartridge onto the spindle If you feel any resistance when threading the reverse thrust cartridge on stop at once and check to be sure the set screw 1 is not binding on the thread Be careful not to cross thread the reverse thrust bearing cartridge Thread the reverse thrust bearing cartridge 15 onto the spindle 12 until the trailing edge of the propeller contacts the gearbox drop pipe Set the proper end play by inserting a 5 64 allen wrench into the reverse thrust bearing set screw through the side of the propeller and loosen the reverse thrust bearing cartridge 15
7. side of the reverse thrust bearing cartridge 14 If the set screw 1 is not in the proper location 3 o clock then turn the propeller slowly until the set screw is accessible through the allen wrench clearance hole Using a 5 64 inch allen wrench loosen the set screw 1 in the reverse thrust bearing cartridge 14 until it is approximately one half the depth of the allen wrench clearance hole NOTE If the bearing area appears to be clogged with dirt or sediment making it difficult to locate the set screw then the thrust bearing cartridge 3 see fig 2 should be removed for visible access to the reverse thrust bearing cartridge Removal of the thrust bearing cartridge 3 is accomplished by loosening the nylon point set screw 2 and unscrewing the thrust bearing cartridge 3 The bearing area should be flushed out with water Pulling lightly slide the propeller assembly off the support spindle 4 If the propeller assembly does not come off with only minimal force loosen the set screw 1 another thread or two then try again Figure 1 Figure 2 and drive magnet retaining plate 7 must be removed in order to replace the standard reverse thrust bearing cartridge 714 with the threaded reverse thrust bearing cartridge Remove the ceramic bearing cartridge retaining screw 5 Remove the drive magnet retaining plate mount 1 ing screws 6 Pull the drive 14 magnet retaining plate 7 9 and drive magnet 8
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