48990 Preset Counter Installation Manual-A
Contents
1. 2 Washer 2 Self Tapping Screw 8 Retainer E Ring Self Tapping Screw 2 Washer Gear Washer Face Gear Detent 3 Number Wheel Shaft Number Wheel Bushing 3 Number Wheel Spacer Number Wheel 3 Units Wheel Comb Comb Shaft Upper Comb Spring 5 Trigger Counter Drive Shaft Register Drive Bushing Latch Spring Emergency Stop Spring Sear Spring 2 Shoulder Bolt Fork Assembly 3 Latch Assembly Ratchet Assembly for Preset with 1 1 side frame Comb Bridge Shaft Lower Trigger Spring Body Fit Screw 4 Sear Comb Bridge Brake Spring used on 45212 Bracket used on 45212 Lift Screw used on 45212 Spring Washer Adjustable Notch Ring Seal Wire amp Screws Assembly Number Wheel 30 unit dwell Pan Head Screw 15 Illustrated Parts Breakdown Part Number Description 40982 Loading Washer 41026 Number Wheel 10 unit dwell 41706 Gasket 41709 Housing 41759 Adjustable Fulcrum Assembly 42124 Number Wheel 60 unit dwell 42784 Sear Pivot pin 42982 Trip Ring 43930 Base Plate 45200 Pinion Shaft 45201 Idler Shaft 45204 Pinion Gear 24 amp 51 teeth for 1 1 gear ratio assembly No 45214 45205 Idler Gear 17 amp 60 teeth for 10 1 gear ratio assembly No 45213 45206 Pinion Gear 18 amp 24 teeth for 10 1 gear ratio assembly No 45213 45207 Idler Gear 24 teeth for 1 1 gear ratio assembly No 45214 45208 Gear 54 teeth for both 1 1 amp 10 1 gear ratio assemblies 45209 Guide2. Plate 45210 Side Frame Same part one for left side one for right 2 46505 Emergency Stop Lever 46763 Fork Spring 3 46766 Counter Drive Shaft Bushing Assembly 47082 Lift Plate Spring 47464 End Spacer 48591 Bezel Replacement PRESET KEY BASE ASSEMBLY 45220 02188 Retainer E Ring 4 06239 Cotter Pin 8 06815 Ny Liner Retaining Ring 07268 Shaft Retaining Ring 4 07270 Button Ny Liner 5 40538 Key Return Spring 5 41019 Pawl Spring 4 41024 Unit Wheel Pawl 41043 Pawl 3 41755 Rubber Channel 45221 Pre Set Key Base 45223 Pre Set Button 4 45224 Emergency Stop Button 45227 Slider 2 45238 Units Wheel Slider 2 Number wheel varies with Preset Model CONTROLS Backed by our Worldwide reputation for Quality Accuracy and Advanced Design LIQUID CONTROLS A Unit of IDEX Corporation 105 Albrecht Drive Lake Bluff IL 60044 2242 1 800 458 5262 847 295 1050 Fax 847 295 1057 www lemeter com 2004 Liquid Controls Pub No 48990B 05 04 ISO 9001 ISO 14001 da di DNV DNV CERTIFICATED FIRM CERTIFICATED FIRM Certificate No 08732 Certificate No 05049
3. at a place between digits Mounting Instructions 1 To mount the Preset Counter it is necessary to remove the housing 1 This is done by removing the four corner screws 2 and lifting the housing off the base plate 2 The Preset Counter housing 1 is then mounted to the mechanical register 3 with four hex head screws 04378 To replace the preset base plate 41708 with the attached internals turn the assembly upside down and gently insert it in the housing Make sure the slotted shaft 4 of the gear plate is engaged properly with the preset drive shaft 40310 If engagement is not complete rotate the gear plate drive shaft at the bottom of the preset to aid in seating Replace the four screws of the seal wire and screws assembly 40633 3 Position the trip ring on the base plate taking care that movement of the sear 40375 and latch 40356 assemblies are not hampered 4 To place the entire assembly head on the mounting flange of the meter turn right side up and position on the counter end cover making sure that the preset counter drive shaft meshes with the slot in the adjuster assembly Check trip ring for freedom of movement and secure using the four bolts provided with the meter assembly Operation and Initial Start Up Single Stage Operation By pressing the four black buttons located on the front of the preset the operator selects the quantity to be delivered Each button controls the number on the wh
4. correct number of washers are being used 11 Troubleshooting PROBLEM The register rolls back PROBABLE CAUSE AND SOLUTION The brake is not holding Adjust the brake PROBLEM The next digit to the left transfers while resetting the right hand digit PROBABLE CAUSE AND SOLUTION The lift brake is damaged Replace the lift brake PROBLEM The reset keys stick PROBABLE CAUSE AND SOLUTION Dirt or ice may be jamming the movement of the key or the shaft may be bent Clean and lubricate components or replace damaged parts PROBLEM The emergency button sticks PROBABLE CAUSE AND SOLUTION Bent or damaged movement Replace the damaged parts PROBLEM The pipes rattle PROBABLE CAUSE AND SOLUTION Hydraulic shock Two stage valve closing is required Low flow position must be at a low flow rate Adjust linkage to obtain both the two stage closure and the low flow rate PROBLEM Stopping in dwell period PROBABLE CAUSE AND SOLUTION A Improper preset adjustment Refer to Preset Counter shutoff Adjustment on Page 7 B Improper valve adjustment Refer to the valve service manual C Wrong trip ring notch selection Refer to Linkage Adjustment on Page 6 D Notch ring set for single stage Remove and reverse E Valve latched in dwell flow when wide open Adjust the linkage 12 PROBLEM Troubleshooting The tank overfilled PROBABLE CAUSE AND SOLUTION A B PROBLEM The valve did not
5. meter turn the assembly right side up and position on the counter end cover making sure that the preset counter drive shaft meshes with the slot in the adjuster assembly Check the trip ring for freedom of movement and secure using the four bolts provided with the meter assembly Environmental Protection If a meter is exposed to a difficult environment the unit should be covered A Be sure to cover the register stack before washing to prevent seepage into the preset and counter housings B After wash down carefully dry the register stack to prevent possible damage C To prevent dust collection inside the housing insert a hose for low pressure instrument air purge Lubrication No field lubrication is necessary CAUTION Excessive lubrication will attract foreign contaminants in difficult environments and shorten life of the device Occasionally it may be necessary to replace certain parts of the preset All of these repairs require removal of the four screws 04584 and the seal wire and screws assembly 40633 This will release the base plate with attached internals Carefully remove this entire assembly from the housing 41709 NOTE Refer to the Illustrated Parts Breakdown on Pages 14 amp 15 for part number references Trigger A To replace the trigger remove the E Rings 02188 from the upper comb shaft 40295 and slide the shaft out B Disconnectthe trigger spring 40371 from th
6. or omitted B Reconnect the lift plate spring 40981 and replace the E Rings 02188 C Replace the three forks one at atime Next replace the fork springs 40532 and the loading washer on the fork on the right hand side of the preset ONLY Then replace the 3 for grommets 45230 and reconnect the 5 comb springs 40296 D Reposition the comb 40294 and replace the upper comb shaft 40295 securing with the two E Rings 02188 Reset Keys A Remove the front two body fit screws 40374 This will allow the entire key base assembly 45220 to slide out of the preset unit B Remove the E Rings 02188 and 07268 Release the pawl springs 41019 and remove the cotter pins 06239 This will permit removal of the preset buttons 45223 REASSEMBLY A Slide new or repaired preset button 45223 into position and replace the cotter pins 06239 and pawl springs 41019 Next replace the E Rings 02188 and 07268 Slide the entire key base assembly 45220 into the housing and replace the two body fit screws 40374 Emergency Stop Button Part of the Key Base Assembly A Follow step A under Reset Keys B Remove the E Ring 06815 which will release the emergency stop button 45244 and the key return spring 40538 REASSEMBLY A Replace the key return spring 40538 and emergency stop button 45224 and secure with the E Ring 06815 B Follow step B under REASSEMBLY of the Reset Keys NOTE R
7. properly set hydraulic shock can occur To adjust the linkage on standard left to right flow meter for a lower flow shorten linkage turning the nuts in a clockwise direction will shorten the stroke of the valve reducing the flow rate in dwell If the linkage is too short the full open notch position may not be reached and the result would be a shut off at dwell rather than at zero If the linkage is too long the valve may shut off at dwell never reaching full flow On those occasions where mass velocity etc are of such magnitude as to preclude the elimination of hydraulic shock by use of a two stage valve some sort of shock absorbing device is required Linkage Adjustment Move 2 locknuts amp bracket inward to decrease dwell speed outward to increase dwell speed J Out a AA Adjustments If the dwell flow rate is as slow as possible but the valve does not reach dwell before final shut off then a preset with a longer dwell period should be used If proper adjustment of the preset valve linkage does not result in elimination of hydraulic shock the viscosity of the product may not be as originally specified requiring change of the valve dashpot washer NOTE Linkage adjustments can be used to zero the preset with the counter as long as it does not create hydraulic shock If hydraulic shock occurs adjustment of the right hand wheel will be required Page 6 The Preset Trip Ring provides two availa
8. steps above Adjustments Thermal Insulation When insulation of the outside of the meter is required to maintain the temperature of a liquid make sure that the valve linkage movement is not impeded During application of insulation continually move the valve handle to be sure movement is not hampered in any way NOTE Refer to the Illustrated Parts Breakdown on Pages 14 amp 15 for part number references Maintenance Replacing the Preset Counter Follow these steps to replace the preset counter A Disconnect the valve linkage 1 from the operating lever 2 B Remove the four screws 3 which secure both preset counter 4 and direct reading counter 5 to the meter C Lift both counters off meter and remove the trip ring 6 D With the counter assembly turned upside down remove the four cap screws 7 which secure the cover to the preset counter E Liftthe preset counter internals out of the preset cover 4 F Install the new preset unit The longer shaft 3 should extend through the preset Make sure the slotted shaft in the gear plate is engaged properly with the preset drive shaft 40310 If engagement is not complete rotate the gear plate drive shaft at the bottom of the preset to aid in seating G Secure the preset to its cover with the four screws 7 Install the trip ring 6 Note the Off Set in the ring should be toward the base seating trip ring H To replace the register stack on
9. 2 in place replace the bushing then the self locking nut 6099 and the body fit screw 40374 CAUTION When replacing the self locking nut 06099 DO NOT OVERTIGHTEN If this nut is overtightened it will collapse the side frames or bind the wheels Maintenance Sear To remove the sear remove the shoulder bolt 42784 and self locking nut 07197 Disconnect the sear spring 40329 and the latch spring 40324 This will release the sear so it can be lifted off the base plate for replacement REASSEMBLY Replace the sear 40375 and reinstall the shoulder bolt 42784 and self locking nut 07197 Reconnect the sear spring 40329 and the latch spring 40324 and check sear for freedom of movement If the sear does not move freely check the shoulder bolt 42784 and or preset base plate for burrs Remove any burrs by gently filing Caution should be taken not to alter the parts contour Latch A Disconnect the trigger spring 40371 B Remove the shoulder bolt 40330 and the internal washer 04644 and the nut 04373 This will release the latch so it can be lifted off the base plate 41708 REASSEMBLY A Replace the latch 40356 shoulder bolt 40330 washer 04644 and the nut 04373 B Reconnect the trigger spring 40371 C Check the trigger fulcrum adjustment Page 7 Lift Plates In order to replace the lift plates a spare lower comb bridge shaft 40368 will be required A Remove one of the E
10. Installation amp Parts Manual LIQUID 4 Digit Preset Counter init IDEX CORPORATION i i E i i M E Installation M500 10 www lcmeter com Table of Contents Description Page Number INTFOGUEHON cr 2 Application Datars anfore aaa 2 3 Mounting Instructions nns sn na 4 Operation and Initial Startup 4 Adjustments LL 5 7 Linkage Adjustment na 5 Shutoff Adjustment rn na 6 Brake Adjustment i 74 Fulcrum Adjustment rna 7 Thermal Insulation 7 Maintenance rss raseras snar ren san nar ana 8 10 Troubleshooting usanza 11 13 Illustrated Parts Breakdown nara 14 15 Introduction The LC 4 digit Preset Counter is a mechanical control device used to accurately and automatically batch liquids In addition to being mechanically linked to a hydraulically balanced preset valve optional pneumatic or electrical switches can be mounted on the preset for controlling pump start circuits or actuating other control circuits i e open close solenoid valves The LC preset is a 4 digit retrograding counter capable of presetting from 1 to 9 999 units also 10 to 99 990 units in increments of 10 or 1 to 999 9 via front panel mounted push buttons The two stage preset counter signals the two stage preset valve to close partially at a fixed number of units of measure short of final closure It then signals the valve
11. ROBABLE CAUSE AND SOLUTION A B Improper notch ring adjustment Adjust the notch ring Improper valve adjustment Refer to the valve service manual 13 Illustrated Parts Breakdown 45211 N 40525 40524 40526 installed on 1 1 Gear Ratio Assembly 45212 BRAKE ASSEMBLY Model D4131 Model D4111 Add 40528 Units Wheel Spring Washer 46595 Units Wheel Slider Space 14 1 GEAR RATIO ASSEMBLY AN SEC BOM PARTS 25009 25014 45212 BRAKT ASSEMBLY INSTALLED NOTE ON I The same parts are used for all model Presets except 1 the number wheels 40286 40972 41026 and 42124 see model description pages 3 and 4 and 2 the gears 45204 45205 45206 45207 45208 that are part of the side frame and gear Assemblies see description in listing below Part Nos 45213 and 45214 Part Number V1095 02188 04372 04373 04377 04378 04644 04761 06127 06099 06209 06251 06252 09154 06880 06887 07219 07361 40122 40278 40282 40284 40285 40286 40287 40294 40295 40296 40297 40310 40311 40324 40326 40329 40330 40346 40356 40364 40368 40371 40374 40375 40386 40524 40525 40526 40528 40539 40633 40972 40974 Description Lift Plate Washer Retainer E Ring per illustration Groove Pin Jam Nut 2 Retaining Ring Hex Head Screw 4 Internal Shakeproof Washer 4 Square Nut used on 45212 Flat Head Machine Screw Locknut Groove Pin Dowel Pin
12. Rings 02188 from the upper comb shaft 40295 This will permit sliding the shaft out B Lay the comb 40294 still attached to the springs back across the guide plate 45209 C NOTE To remove the forks the number wheels must be rotated so the forks are in the full forward position Remove the fork springs 40532 and disconnect the 5 comb springs 40296 Continued on next page NOTE Refer to the Illustrated Parts Breakdown on Pages 14 amp 15 for part number references Maintenance Lift Plates continued D Remove the 3 E Rings 02188 from the lower comb bridge shaft 40368 and slide the shaft with spacer 45217 out just far enough to release one side of the first lift plate 46228 Slide the spare lower comb shaft 40368 into this side Do not catch the lift plate Finish sliding the first lower comb shaft out following through with the spare shaft releasing the lift plates 46228 and 46229 as you go This will release the lift plates while holding the 3 detents 40278 and the spacers in position E To remove the lift plates disconnect the lift plate springs 40981 and 40329 from the side frame and lift plates Remove the lift plates from the base plate REASSEMBLY A Replace the lift plate 40388 Now with the original lower comb bridge shaft slide the replacement shaft out following through with the original shaft catching the lift plate as you go Make sure that the spacer 45217 is not lost
13. ble notch segments for controlling single stage valves and four available notch segments for controlling two stage valves Should one segment become worn so that it is no longer effective the trip ring can be repositioned to make use of another available notch segment The choice of tapped holes and accompanying slots permit trip ring installation for greatest ease in connecting the ball joint of the linkage arm to the trip ring NOTE The Trip Ring is used only as shown in the parts list with M 5 and M 7 meters With all larger size meters M 15 etc a Ball Joint Extension is supplied attached to the Trip Ring to permit connection of the ball joint of the linkage arm When ordering replacement parts please specify needed parts accordingly Two Available Single StagNN Notch j Segments S Notch Segment Adjustments Shutoff Adjustment Preset Counters assembled with meters are adjusted in the factory for proper shut off timing Due to meter system variations i e rate of flow and or viscosity itis sometimes necessary to make shutoff adjustments Before any shutoff adjustments are made at least two 2 test runs should be completed On all presets make test runs using a value large enough to permit the meter to reach its normal flow rate NOTE For consistent shut off the same flow rate and viscosity must be maintained When metering products where variation in viscosity and or flow rates exist a two stage pres
14. close Refer to the valve service manual The tank was not empty Make sure the tank is empty Make sure it is large enough to hold the preset amount Ensure the correct amount was set on the preset The preset valve was within or smaller than the dwell period for two stage presets Ensure to set the preset quantity larger than the dwell Single stage model used with two stage trip ring notch set Adjust the notch ring for single stage closure Presets with switch operated valve The switch did not close properly Disconnect power and open the switch case to determine if the cam is operating properly Comb did not engage notch ring Check for proper comb adjustment Check for bind in comb pivot preventing engagement of the notch ring High temperature product being used with a net preset Change to gross or fill lesser quantity Running past zero and stopping PROBABLE CAUSE AND SOLUTION A B C PROBLEM Improper valve adjustment Refer to the valve service manual Improper preset adjustment Refer to Preset Counter Shutoff Adjustment on Page 7 Wrong trip ring notch position Refer to Linkage Adjustment on Page 6 Wrong linkage adjustment Refer to Linkage Adjustment on Page 6 Interference by dirt ice insulation etc with a trip ring or linkage Refer to Maintenance on Pages 9 11 Worn trigger Replace worn component Fulcrum adjustment disturbed Adjust fulcrum Stopping before zero P
15. d preset are recording in dekaliters D 4130 Two stage preset with a 10 unit dwell and a 10 1 ratio side frame This preset is normally specified on M 15 meters when the counter is recording in tenth units and the preset is recording in whole units D 4140 Two stage preset with a 10 unit dwell and a 1 1 ratio side frame This preset is normally specified on M 15 meters when the counter and preset are recording in whole units Also used on M 5 and M 7 meters when the counter and preset are recording in one liter increments and on M 30 meters when the counter and preset are recording in dekaliters D 4160 Two stage preset with a 60 unit dwell and a 1 1 ratio side frame This preset is normally specified on larger meters M 60 MS 75 and MS 120 when registering in whole units D 4111 Two stage preset with 3 unit dwell and a 10 1 ratio side frame This preset is normally specified on M 7 delivery truck meters when the counter records tenth units and the preset is in whole units A special clutch assembly prevents non random delivery readings D 4131 Two stage preset with 10 unit dwell and a 10 1 ratio side frame This preset is normally specified on M 15 delivery truck meters when the counter records tenth units and the preset is in whole units A special clutch assembly prevents non random delivery readings Non random indicates that the numbers of the preset counter will stop on a digit at the end of a delivery and not
16. e trigger 40297 REASSEMBLY A Insert the new trigger 40297 Slide the upper comb shaft 40295 into position and replace the E Rings 02188 Make sure the slot in the trigger straddles the fulcrum shaft B Reconnect the trigger spring 40371 C Check the trigger fulcrum adjustment Page 7 Notch Ring A To replace the notch ring 40539 remove the front body fit screw 40374 and the locknut 06099 This will release the side frame 45210 allowing it to swing like a gate permitting removal of the bushing 40285 from the shaft 40282 Slide the shaft 40282 out only far enough to clear the numbers wheel 40287 Remove the numbers wheel 40287 with the inserted ratchet assembly 43064 and attached the notch ring 40539 B Remove the notch ring screw 40974 and spread the notch ring enough to remove it from the numbers wheel Occasionally a burr in the notch ring is all that is wrong Remove the burr by gently filing it off Do not mar the surface of the notch ring REASSEMBLY A Replace the notch ring on the numbers wheel and replace the notch ring screw 40974 Be sure to reinstall the notch ring in exactly the same position it was in Reversing it will give a single trigger when two stage shut off is required B Replace the numbers wheel with the attached notch ring and inserted ratchet assembly on the number wheel shaft 40282 Swing the side frame assembly back into position slide the shaft 4028
17. eel above it There is no need to set the numbers in sequence Any number can be set first second third or fourth Two Stage Operation Preset operation is basically the same during single stage or two stage closure The quantity desired is set by the operator and the valve is opened to the full flow position At a predetermined dwell period the preset allows the valve to close partially slowing the flow to approximately 10 20 of full flow When the desired quantity has been delivered the preset releases the valve allowing it to close completing the delivery T Lasa OL AU AU MU si Fr ns Ms Linkage Adjustment There are two main reasons for making linkage adjustments 1 Field modification of flow direction through the meter 2 To overcome hydraulic shock Hydraulic shock occurs when a volume mass of liquid is moving through a pipe line and a valve is suddenly closed When the flow is abruptly stopped the entire mass of liquid in the piping system acts as a battering ram causing a shock effect within the meter The greater the mass length of line and or velocity the greater the hydraulic shock Since the valve of the meter is usually located at the meter outlet the meter packing gland and the meter internal components receive the full impact of such hydraulic shock To prevent this hazard a two stage slow closure valve should be used with the meter If the linkage adjustment is not
18. efer to the Illustrated Parts Breakdown on Pages 14 amp 15 for part number references 10 Troubleshooting PROBLEM Stopping at random PROBABLE CAUSE AND SOLUTION A Worn sear Replace sear B Worntrip ring Remove trip ring and select new Notch set Reposition the ball joint on the trip ring Reinstall the trip ring C Burr on notch ring Remove burr or replace notch ring D Right hand comb finger bent Adjust right hand comb finger so it clears the right hand wheel by 1 32 when the remaining wheels are any number other than zero E Comb fingers are bent or damaged Adjust sensing fingers so that fingers are touching the wheel at the same moment PROBLEM Preset won t latch in full flow PROBABLE CAUSE AND SOLUTION A Worn sear Replace sear B Worn trip ring Replace trip ring C Worn sear and latch Replace sear and latch D Fulcrum adjustment moved Adjust fulcrum E Valve linkage out of adjustment Adjust linkage PROBLEM Product delivered registers more than the preset amount PROBABLE CAUSE AND SOLUTION Right hand wheel of the counter is running 10 times faster than the right hand wheel of the preset Wrong mode preset is being used Change to a 1 1 ration preset with needed dwell PROBLEM Product delivered registers less than the preset amount PROBABLE CAUSE AND SOLUTION The units wheel is over running on transfer Improper springs used on forks Replace the fork springs and ensure the
19. en stopping flow For installations where hydraulic shock is not a potential problem single stage presets are available OPERATING NOTE Hydraulic shock occurs when a volume mass of liquid is moving through a pipeline at some flow rate and a valve is suddenly closed When the flow is so decreased or stopped the entire mass of the liquid in the piping system acts as a battering ram causing a shock effect within the meter The greater the mass length of line and or velocity the greater the hydraulic shock Since the preset batching valve is usually located downstream of the meter the meter case packing gland and meter internal members receive the full impact of such hydraulic shock which can cause ruptures leaks or other damage To overcome this hazard a hydraulically balanced slow closing valve should be used in conjunction with a two stage preset adjusted for sufficient dwell to decelerate the liquid flow gradually NOTE The suggested dwell settings for each meter model are listed below e M 5 MS 5 3 10 U S Gallons e M 7 MS 7 3 10 U S Gallons e M 15 M 25 MS 15 10 30 U S Gallons e M 30 MS 30 10 30 U S Gallons e M 60 30 60 U S Gallons e MS 75 30 60 U S Gallons e MS 12060 100 U S Gallons U S Gallons or equivalent These are suggested dwell settings They may vary with system conditions i e length of line viscosity of product etc The preset models available provide dwell periods suitable
20. et should be specified If after making at least two 2 test runs an error in alignment is indicated correct the error as follows A Note the position of the zero on the right hand wheel in relation to the zeros on the other wheels Determine whether the zero is stopping too early or too late and how much misalignment occurs Direct Reading Counter Preset a a 2l al ae le S CIN CO00007 A n B Disassembly 1 Remove the eight 8 screws A 2 Remove the bezel B 3 Press presetbutton C of units preset wheel D until screw E appears in opening 4 Loosen screw E in adjustable ring F and index the numbers wheel D relative to this ring a To correct an early shut off as illustrated holding ring F in place move the numbers wheel D down enough to correct misalignment b To correct a late shut off as illustrated holding ring G in place move the numbers wheel D up enough to correct misalignment C Reassembly is reverse of steps outlined for disassembly Correct Early Brake Adjustment A brake is used on 1 1 preset to prevent rotation on the counter wheel when setting a number on the right hand wheel of the preset A To adjust the brake you must remove the register stack preset counter etc from the meter This is done by removing the register stack from the counter mounting flange of the meter B Lift the entire register stack off the me
21. ter and turn upside down Remove the four screws holding the preset base plate 41708 with attached internals and carefully remove the entire unit from the housing 41709 If the first gear 45208 is loose moves without lag the brake should be tightened Turn the screw 40526 clockwise until the nut 04761 is snug but not tight against the bracket 40525 If the gear 45208 is too tight and sticks when being rotated then the brake must be loosened Fulcrum Adjustment Prior to any fulcrum adjustment the gap between the trigger 40297 and latch 40356 should be inspected This is done by removing the four screws connecting the register stack to the counter mounting flange of the meter Lift the entire register stack off the meter and turn upside down Inspect the gap between the trigger and latch The gap should be 1 64 4 mm If an adjustment is required remove the four screws holding the preset base plate 41708 with the attached internals and carefully remove the entire unit form the housing 41709 Loosen the hex nut 4373 to allow sufficient movement of the fulcrum 41759 Turn the preset on its side and move the fulcrum to set 1 64 4 mm gap between trigger 40297 and latch 40356 After gap is set tighten the hex nut 4373 and reexamine the gap If the gap is accurate reassemble the base plate to housing and the register stack to the counter mounting flange of meter If the gap is not accurate repeat the
22. to close completely when the preset volume has been completely metered A single stage preset counter is also available Application Data The LC Preset Counter provides a means of automatically delivering a precise predetermined quantity of product by controlling the operation of a mechanically linked hydraulically balanced valve For maximum life the preset should be operated at or under a maximum of 120 rpm of the right hand wheel Example 1200 gpm in whole gallons 120 gpm in 1 10 gallons Presets provide valve control through a mechanical linkage Presets are available in a choice of models to meet requirements for single stage or two stage operation dwell flow periods and units of measure The preset counter is available geared in either a 1 1 or 10 1 ratio The 1 1 ratio is used when the right hand wheel of the counter and the right hand wheel of the preset rotate in unison with both wheels indicating the same unit of measure When the right hand wheel of the counter and preset record whole units the preset capacity is 9 999 The 10 1 ratio is used when the right hand wheel of the counter is to indicate tenths and the right hand wheel of the preset is to indicate whole units the right hand wheel of the counter turns ten revolutions for each revolution of the right hand wheel of the preset The preset is available in a two stage model to prevent hydraulic shock in the piping system and meter by gradually reducing and th
23. to meet all conditions The models available with a description of each are listed below D 4110 Two stage preset with a 3 unit dwell period and a 10 1 ratio side frame This preset is normally specified on M 5 and M 7 meters when the counter records tenth units and the preset is in whole units D 4150 Two stage preset with 30 unit dwell period and a 1 1 ratio side frame This preset is normally specified on M 5 and M 7 meters when the counter and preset record pounds Also specified on M 30 and M 60 meters when counter and preset record whole units and on M 15 meters when the counter and preset record in one liter increments M 60 and larger size meters when counter and preset record in dekaliters D 4180 Single stage preset no dwell period and a 1 1 ratio side frame This preset is normally specified on M 5 and M 7 meters measuring high viscosity liquids at low flow rates with the counter and preset in pounds or whole units D 4170 Single stage preset no dwell period and a 10 1 ratio side frame This preset is normally specified on M 5 and M 7 meters measuring high viscosity liquids at low flow rates when the counter is in tenth units and the preset is in whole units Application Data Continued D 4120 Two stage preset with 3 unit dwell and a 1 1 ratio side frame This preset is normally specified on M 5 and M 7 meters when the counter and preset are recording in whole units Also used on M 15 meters when the counter an
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