Limitorque LY 1001 Series Installation And Maintenance Manual Download Page 48

Page: 48 / 63

7-6

LY Installation and Maintenance for LY 1001, LY 2001 and LY 3001

LMAIM1501

Remove Input Worm Motor Pinion Assembly

10. Remove Input Worm Motor Pinion Assembly (piece #52, 53, 124, and 31).

Remove Worm Shaft Assembly

11. Remove four Screws (piece #61) and four Lockwashers (piece #62) to remove Bearing Cap (piece #5).

12. Remove Bearing Cap (piece #5) and O-Ring (piece #135).

13. Rotate Worm Shaft Assembly counterclockwise. The Worm Shaft Assembly should travel out of the Housing.

Once it has reached the end-of-travel, pull the remaining Worm Shaft Assembly out; Clutch Sleeve (piece #13)

will slip off the Worm Shaft Assembly. In the event that the Worm is stripped, the Worm Shaft Assembly will

need to be completely replaced.

NOTE: If Light Spring Pack or Heavy Spring Pack replacement is necessary, contact your Limitorque

authorized dealer or the Limitorque Service Department for a complete Worm Shaft Assembly replacement.

Remove Handwheel Assembly (LY 2001)

14. Remove the Handwheel Clutch (piece #16), Compression Spring (piece #17), Clutch Sleeve (piece #13),

Thrust Washer (piece #26 [2 pcs]), and Thrust Bearing (piece #27).

15. Remove four Screws (piece #70) and four Lockwashers (piece #71) from the Handwheel Cap Plate

(piece #69).

16. Remove the Handwheel Assembly as one piece (pieces #146, 41, 112, 69, 192, 134, and 37).

17. Go to Step 19.

Remove Handwheel Assembly (LY 3001)

14. Remove the Handwheel Clutch (piece #16), Compression Spring (piece #17), Clutch Sleeve (piece #13) and

Thrust Washer (piece #26 [2 pcs]), and Thrust Bearing (piece #27).

15. Remove Screws (pieces #63 and 65) and Lockwashers (piece #64 and 66) from the Spur Gear Cover

(piece #34) of the Handwheel Assembly.

16. Remove the Handwheel Assembly as one piece (pieces #146, 41, 112, 136, 39 [2 pcs], 34, 137, 116, 115, 38,

and 36).

17. Remove the Handwheel Pinion and Idler (piece #43) and Idler Shaft (piece #42).

18. Remove the Handwheel Gear Assembly (pieces #119, 35, and 37).

Remove Drive Sleeve

19. Remove the Roll Pins (piece #174) located in the end of the Mechanical Stop Screws (piece #58).

20. Remove the Mechanical Stop Screws (piece #58), Locking Nut (piece #59), Thread-Seal (piece #60), and

Retaining Washer (piece #184).

21. Remove O-Ring (piece #129) and Bearing (piece #33) from the top of the Drive Sleeve (piece #10).

22. Remove the Drive Sleeve (piece #10).

Remove Declutch Assembly

23. Remove Roll Pin (piece #121) and remove Declutch Lever (piece #45).

24. Push the Declutch Assembly (pieces #46, 48, 123, 122, and 44) up through the Housing and remove. Then

remove Declutch Return Spring (piece #47).

25. Remove O-Ring (piece #138) from the Housing.

Remove Input Worm Gear

26. Remove the Retaining Drive Ring (piece #113).

27. Remove Input Worm Gear (piece #18) and Lug Adapter (piece #25) as an assembly from the Ball Bearing

(piece #24).

Flow Control Division

Limitorque Actuation Systems

Summary of Contents for LY 1001 Series

Page 1: ...Lim itorque 0 50 100 Limitorque LY Series Installation and Maintenance for LY 1001 LY 2001 and LY 3001 LMAIM1501 Replaces 150 12000 November 2003 Limitorque Actuation Systems ...

Page 2: ...ue reserves the right to make changes without notice to this document and the products it describes Limitorque shall not be liable for technical or editorial errors or omissions made herein nor for incidental or consequential damages resulting from the furnishing performance or use of this document The choice of system components is the responsibility of the buyer and how they are used cannot be t...

Page 3: ...6 Limit Switch and Mechanical Stop Settings 5 7 5 7 Setting the Limit Switches 5 7 5 7 1 Setting the CLOSED Limit Switch 5 7 5 7 2 Setting the OPEN Limit Switch 5 9 5 8 Mechanical Stops 5 10 5 8 1 Setting the CLOSED Mechanical Stop on the LY 1001 5 10 5 8 2 Setting the CLOSED Mechanical Stop on the LY 2001 3001 5 10 5 8 3 Setting the OPEN Mechanical Stop on the LY 1001 5 11 5 8 4 Setting the OPEN ...

Page 4: ...onduit Pipe Plugs 5 4 Figure 5 5 Grounding Lug Location 5 5 Figure 5 6 Reversing Torque Switch Wiring 5 7 Figure 5 7 Limit Switch Setting Nut 5 8 Figure 5 8 Setting CLOSE Limit Cam 5 9 Figure 5 9 Setting OPEN Limit Cam 5 10 Figure 5 10 Mechanical Stop Set Screw Adjusted to Torque Drive Nut Contact Point on LY 1001 5 11 Figure 5 11 Mechanical Stop Screw Adjustment on LY 2001 and 3001 5 12 Figure 5 ...

Page 5: ...clutch Return Spring Installation Position 7 8 Tables Table 4 1 Unit Weights 4 1 Table 5 1 Torque Drive Nut Custom Bore and Keyway Sizes 5 2 Table 5 2 LY Actuator Mounting Base Tap Sizes 5 4 Table 5 3 Control Cover and Conduit Pipe Plug Hardware 5 5 Table 5 4 LY Control Cover and Integral Control Cover Bolt Sizes 5 5 Table 5 5 Mechanical Stop Set Screws 5 10 Table 5 6 Mechanical Stop and Locknut S...

Page 6: ...vi LY Installation and Maintenance for LY 1001 LY 2001 and LY 3001 LMAIM1501 This page is intentionally blank Flow Control Division Limitorque Actuation Systems ...

Page 7: ...e precautions could result in serious bodily injury damage to the equipment void of warranty or operational difficulty Safety notices are presented in this manual in three forms a DANGER Refers to personal safety Alerts the user to danger or harm The hazard or unsafe practice will result in severe injury or death a WARNING Refers to personal safety Alerts the user to potential danger Failure to fo...

Page 8: ...1 2 LY Installation and Maintenance for LY 1001 LY 2001 and LY 3001 LMAIM1501 This page is intentionally blank Flow Control Division Limitorque Actuation Systems ...

Page 9: ...ons LY actuators may be mounted on any size valve in almost any position or location Microprocessor based control and monitoring devices are available for installation on your actuator Contact your local Limitorque distributor or Limitorque sales office for further information Figure 2 1 LY Actuator LY 1001 shown Flow Control Division Limitorque Actuation Systems Limitorque 0 50 100 Housing Positi...

Page 10: ...2 2 LY Installation and Maintenance for LY 1001 LY 2001 and LY 3001 LMAIM1501 This page is intentionally blank Flow Control Division Limitorque Actuation Systems ...

Page 11: ...ctrical Power Supply Operating Time seconds Motor Full Load Amperage Figure 3 1 LY Nameplate Reference Drawing 61 682 0108 3 2 Inspection and Recording Upon receipt of the actuator inspect the condition of the equipment and record nameplate information as follows 1 Carefully remove actuator from shipping carton or skid Thoroughly examine the equipment for any physical damage that may have occurred...

Page 12: ...ration and rapid tempera ture changes NOTE During long term storage the maximum source of equipment deterioration anticipated is from possible condensation within the actuator enclosure This condensation may occur with rapid temperature changes in the storage environment If reliable means are not available to prevent rapid temperature changes a heat source should be added in the electrical enclosu...

Page 13: ...it Weights The approximate LY actuator weights are provided below Table 4 1 Unit Weights Unit Size Control lb kg LY 1001 NCU 40 20 BIC 75 34 UEC 90 41 LY 2001 NCU 100 45 BIC 110 50 UEC 144 65 LY 3001 NCU 105 48 BIC 130 59 UEC 149 68 Flow Control Division Limitorque Actuation Systems ...

Page 14: ...4 2 LY Installation and Maintenance for LY 1001 LY 2001 and LY 3001 LMAIM1501 This page is intentionally blank Flow Control Division Limitorque Actuation Systems ...

Page 15: ...e 165 or 109 and Torque Nut piece 32 from actuator Figure 5 1 Torque Nut and Retaining Drive Ring Removal from an LY 1001 2 If Torque Nut has been bored and keywayed by Limitorque verify dimensions and keyway location for proper compatibility with the valve stem 3 If Torque Nut has not been bored and keywayed by Limitorque it is provided solid blank to allow customer to custom key and bore up to t...

Page 16: ...or If the actuator is already mounted to a valve from the manufacturer verify that the actuator is mounted according to the following overview Failure to follow the installation procedures could result in personal injury and or improper operation and could cause damage to the equipment 1 Mount Torque Nut piece 32 in the actuator as shown in Figure 5 3 with the following alignment A For LY 1001 Sto...

Page 17: ...Actuator Mounting Adapter Valve Stem Stop Lug index lines facing Mechanical Stop Screws Top view Mechanical Stops Closed Mechanical Stop Screws D C B A Stop Pins located within actuator housing on the Drive Sleeve Gear Closed Open Actuator Mounting Base 32 Torque Nut Actuator Mounting Adapter Valve Stem Top view of LY 2001 3001 Mechanical Stops CCW to Open Open of LY 1001 LY 1001 LY 2001 3001 Flow...

Page 18: ... 0 71 deep 25 mm deep Complies with F10 ISO mounting flange criteria LY 2001 3001 8 5 8 11 x M16 x 2 mm x 35 mm 1 26 deep deep Complies with F14 ISO mounting flange criteria NOTE Flowserve has supplied eight taps for the LY 1001 LY 2001 and LY 3001 in English Metric units to provide flexibility in mounting arrangements A minimum of four securing bolts is required to properly secure and retain torq...

Page 19: ...ng fittings installed in accordance with the National Electric Code B Submersible actuators require an approved sealing fitting in order to keep water from entering the actuator 8 Attach grounding wire to Grounding Lug piece 141 9 Verify motor rotation direction to ensure that the limit switch is wired properly for intended operation See Section 6 2 Verify Correct Motor Rotation Phasing and OPEN C...

Page 20: ...ble check the wiring diagram to verify that the Torque Switch is wired appropriately for the appli cation The Torque Switch will not protect the valve from over torque if the Torque Switch is not wired properly for the application LY series actuators are typically supplied with a CCW Drive Sleeve rotation to open a valve The Torque Switch is marked OPEN CCW and CLOSE CW based upon CW Drive Sleeve ...

Page 21: ...ature on the actuator Handwheel or Declutch Lever may cause serious personal injury and or damage to the actuator or valve a DANGER HAZARDOUS VOLTAGE Make sure all power is disconnected before making the following settings 5 7 1 Setting the CLOSED Limit Switch 1 Put the actuator in MANUAL operation move the Declutch Lever in the direction of the arrow on the lever until the Declutch Lever locks in...

Page 22: ...r trips the N O contact is released causing the Limit Switch to stop the actuator in the CLOSED position Figure 5 8 Setting CLOSE Limit Cam 5 Retighten Setting Nut piece 7 10 CLOSE microswitch position while valve is traveling from OPEN toward the CLOSED position High Side Rotate CW to reach CLOSE Trip Point CLOSE Limit Cam CLOSE microswitch position when valve has reached the CLOSED position and ...

Page 23: ...cribe rotation directions opposite of your application 3 Loosen Setting Nut piece 7 10 located at the top of the switch bracket See Figure 5 7 4 Rotate the OPEN Limit Cam CCW through the high side to the trip point until the Switch Plunger is released This causes the N O contact to open There will be no electrical continuity at the trip point when measuring with an ohmmeter between the common lead...

Page 24: ...tion until contact with the Torque Nut piece 32 occurs See Figure 5 9 4 Back off Mechanical Stop Set Screw CCW direction approximately 1 1 2 turns 5 Reinstall Set Screw piece 59 6 Manually operate the actuator through the close limit to assure setting is correct NOTE The Mechanical Stops are intended to protect the equipment from overtravel if a Limit Switch fails The valve should not torque out a...

Page 25: ...e CW direction until contact with the Stop Pin piece 28 occurs 4 Back off Mechanical Stop Screw CCW direction approximately 1 turns 5 Retighten Locking Nut 6 Manually operate the actuator through the close limit to assure setting is correct NOTE The Mechanical Stops are intended to protect the equipment from overtravel if a Limit Switch fails The valve should not torque out against the Mechanical ...

Page 26: ...alve to the OPEN position Make sure the valve is fully open before setting the Mechanical Stop 3 Rotate Mechanical Stop Screw piece 58 in the CW direction until contact with the Stop Pin piece 28 occurs 4 Back off Mechanical Stop Screw CCW direction approximately 1 turns 5 Retighten Locking Nut 6 Manually operate the actuator through the open limit to assure setting is correct NOTE The Mechanical ...

Page 27: ... position the actuator to mid travel valve at the 50 position 2 Disconnect the Potentiometer Wiring Harness from where it is plugged in or connected to a Terminal Strip 3 Using an ohmmeter verify that the potentiometer is in mid travel The resistance from each End Connection to the Center Connection should be half of the full resistance of the Potentiometer Example 1000 ohm potentiometer should re...

Page 28: ...tentiometer Shaft b Using a small flat tipped screwdriver in the slotted Potentiometer Shaft rotate the Shaft until the correct reading is obtained as described in Step 3 c Retighten the Set Screw 6 Disconnect the ohmmeter and reconnect the Potentiometer wiring to the original connection Limitorque PERCENT OPEN 0 50 100 Potentiometer Shaft Spur Gear Setscrew End Connection Center Connection Ohmmet...

Page 29: ...tor rotates in the wrong direction damage could occur by over torquing equipment into a seated position Prior to being shipped from the factory each actuator is inspected to verify proper operation of the Torque and Position Limit Switches and to ensure that they function correctly i e closes when the CLOSE pushbutton is depressed opens with the OPEN pushbutton etc These inspections are made with ...

Page 30: ...H T BRN GRY PNK ORG BLU WHT YEL WHT BLK GRN YEL BLK BLU BLU BLK BLK GRN BLU YEL BLK BLU BLK YEL YEL RED RED PNK PUR BLK WH T WH T BLK BLK PUR WHT YEL WHT RED BLK BLU WHT PNK PUR BRN ORG YEL BLU BLK WHT BLU BLK YEL BLK PUR BLK WHT BLK WHT RED WHT BRN RED BLK BLK BRN RED BRN RED BLK Limit Switch Contact Development LIMIT SWITCH CONTACT 2 3 4 5 6 7 8 9 VALVE POSITION FULL OPEN FULL CLOSE FUNCTION SPA...

Page 31: ...1 1 2 4 BLACK WHITE PUR ORG PNK BRN YELLOW WHITE BLUE WHITE RED BLACK L1 L2 H1 H3 H2 H4 WHITE YELLOW YELLOW BLUE BLUE WHITE BLK 1 YEL YEL 18V BLACK 230V 500 H1 H3 TO L1 H2 H4 TO L2 415 380 1 A B C D E TRANSFORMER TYPES 600 575 550 3 2 TAPS 460V H3 TO H2 H1 TO L1 H4 TO L2 RED PURPLE WHITE ALTERNATE STANDARD 1 2 3 25 26 27 28 29 30 POT CCW POT SWEEPER POT CW 2 PUR BLU WH T YEL WHT C O YEL PUR BLU BL...

Page 32: ...idtravel position allows electrical operation in the valve safe area and keeps the OPEN and CLOSED limit switches from tripping while testing motor direction 2 Momentarily press the OPEN pushbutton to test motor direction If the actuator moves toward CLOSED immediately turn power OFF and proceed with the instructions that match your application Permanent Split Capacitor single phase motors can be ...

Page 33: ...eater LY COMPT POT Slidewire transmitter optional See certification sheet if supplied TH OL Thermal overload internal TS18 Opening torque switch interrupts control circuit if mechanical overload occurs during opening cycle TS17 Closing torque switch interrupts control circuit if mechanical overload occurs during closing cycle NOTES 1 Open contact 2 Close contact 3 All limit switch trip points are ...

Page 34: ...TB2 10 1 4 1 3 1 1 1 2 2 1 2 2 4 5 4 6 4 10 4 6 4 6 4 3 4 1 4 2 5 1 5 2 6 1 6 2 4 11 19 3 8 4 11 BLACK BLUE YELLOW ORANGE BROWN PINK GRAY PURPLE R G TB1 9 POT OPTIONAL 7 1 7 2 7 3 TB1 10 TB1 8 L2 LS9 LS5 LS4 LS8 2 7 2 8 2 10 2 11 2 4 2 5 LS7 LS6 TB1 3 TB1 1 TB1 2 2 12 2 13 2 14 2 15 FOR REMOTE INDICATION WHEN REQUIRED FOR REMOTE INDICATION WHEN REQUIRED TO CUSTOMER S EQUIPMENT TB2 11 TB2 12 4 8 4 ...

Page 35: ... the motor rotation if necessary 6 If the actuator configuration has a control package see the specific control package Instruction and Maintenance Manual for proper setup and calibration The actuator should operate correctly and will stop at the end of travel by the Torque and Limit Switch functions 6 4 Manual Operation a WARNING Do not manually operate actuator with devices other than installed ...

Page 36: ...e Input Worm Shaft piece 31 The Input Worm Shaft drives the Input Worm Gear piece 18 that is lugged to the Clutch Sleeve piece 13 The Input Worm Gear drives the Worm Shaft Assembly through the lugs and splines on the Clutch Sleeve The Output Worm piece 15 on the Worm Shaft Assembly turns the Drive Sleeve piece 10 The Drive Sleeve accepts the Torque Nut piece 32 that is bored and keyed to fit and t...

Page 37: ... 82 83 81 130 54 11 12 170 171 169 2 9 110 146 7 147 148 8 LY 1 H M L H M L CLOSE OPEN 98 97 143 6 142 120 PERCENT OPEN 0 50 100 L i m i t o r q u e 184 184 185 Note Refer to certified data for construction purposes 01 458 0020 4 Rev C 80 79 189 Note Rotate CW 180 for mounting 111 Flow Control Division Limitorque Actuation Systems ...

Page 38: ...14 113 24 70 37 44 55 47 123 46 31 124 52 52 156 53 132 61 62 5 135 Worm Shaft Assembl y 141 73 72 1 4 66 65 138 121 45 128 33 129 10 165 32 41 34 137 63 64 112 134 154 155 155 15 18 14 96 22 23 40 94 19 20 21 30 99 100 50 51 183 182 180 181 Note Refer to certified data for construction purposes 01 458 0020 4 Rev C 157 48 187 188 Flow Control Division Limitorque Actuation Systems ...

Page 39: ... LY 2001 and LY 3001 6 11 Figure 6 8 LY 2001 3001 Cover and Associated Parts 67 68 3 108 86 106 107 145 L i m i t o r q u e Note Refer to certified data for construction purposes 101 458 0019 4 Rev A 186 Flow Control Division Limitorque Actuation Systems ...

Page 40: ... Top Plate and Associated Parts 127 11 12 143 6 142 126 54 74 75 76 82 83 81 130 P E R C E N T O P E N 0 5 0 1 0 0 Limitorque 80 2 9 111 110 193 7 147 148 8 98 97 125 90 Note Refer to certified data for construction purposes 101 458 0019 4 Rev A 120 79 Flow Control Division Limitorque Actuation Systems ...

Page 41: ...52 52 53 41 70 71 132 61 62 5 135 Worm Shaft Assembl y 141 73 72 1 4 128 33 129 10 32 26 27 16 13 17 18 114 113 24 122 48 95 94 96 28 112 146 138 121 45 69 109 131 40 89 88 25 174 134 59 60 14 15 118 117 19 20 30 21 29 55 99 100 22 23 51 50 49 183 182 180 181 Note Refer to certified data for construction purposes 01 458 0019 4 Rev A 192 Flow Control Division Limitorque Actuation Systems ...

Page 42: ...LY 3001 LMAIM1501 Figure 6 11 LY 3001 Handwheel Assembly 40 37 35 119 38 115 116 41 112 146 39 136 63 64 65 66 43 42 36 34 137 39 39 Note Refer to certified data for construction purposes 01 458 0019 4 Rev A 134 Flow Control Division Limitorque Actuation Systems ...

Page 43: ... the Worm is totally immersed in grease regardless of the position Quality Inspect lubricant for dirt water or other foreign matter If any one of these is found 1 Flush the actuator with a commercial degreaser cleaner such as Exxon Varsol 18 This degreaser cleaner is not corrosive and does not affect the seal materials 2 Repack the actuator with fresh lubricant allowing room for grease thermal exp...

Page 44: ...g your actuator ensure that the valve or other actuated device is isolated and is not under pressure Remove Cover and Top Plate 1 Turn off all power to the actuator 2 Remove the Control Cover piece 3 3 Disconnect all electrical leads from the Torque Switch piece 8 and Limit Switch piece 7 Make sure all wire leads are properly marked for reassembly 4 Remove all external wires to the Terminal Strips...

Page 45: ...eel Cap piece 34 16 Remove the Handwheel Assembly as one piece piece 41 112 34 137 134 155 2 pcs 154 70 and 37 Remove Drive Sleeve 17 Remove O Ring piece 129 and Bearing piece 33 from the top of the Drive Sleeve piece 10 18 Remove the Drive Sleeve piece 10 Remove Declutch Assembly 19 Remove Roll Pin piece 121 and remove Declutch Lever piece 45 20 Push the Declutch Assembly piece 46 123 44 and 55 2...

Page 46: ...tween the Input Worm Gear piece 18 and the Clutch Sleeve piece 13 11 Install Thrust Washer piece 26 Thrust Bearing piece 27 and second Thrust Washer piece 26 into the Handwheel Clutch piece 16 12 Put a light coat of grease on the Thrust Bearing Install Spring piece 154 into the Handwheel Clutch 13 Install Handwheel Clutch Assembly pieces 16 154 26 2 pcs and 27 into the Housing Push remaining Worm ...

Page 47: ...Install Control Cover piece 3 with Hardware piece 67 and 68 7 3 3 LY 2001 3001 Disassembly a DANGER HAZARDOUS VOLTAGE Turn off all power before disassembling your LY actuator a DANGER POTENTIAL HIGH PRESSURE VESSEL Before disassembling youractuator ensure that the valve or other actuated device is isolated and is not under pressure Piece numbers refer to Figures 6 8 6 9 6 10 and 6 11 Remove Cover ...

Page 48: ... 112 69 192 134 and 37 17 Go to Step 19 Remove Handwheel Assembly LY 3001 14 Remove the Handwheel Clutch piece 16 Compression Spring piece 17 Clutch Sleeve piece 13 and Thrust Washer piece 26 2 pcs and Thrust Bearing piece 27 15 Remove Screws pieces 63 and 65 and Lockwashers piece 64 and 66 from the Spur Gear Cover piece 34 of the Handwheel Assembly 16 Remove the Handwheel Assembly as one piece pi...

Page 49: ...turn Spring Installation Position 4 Install Declutch Assembly piece 46 48 123 122 and 44 5 Install O Ring piece 138 over Declutch Shaft piece 44 6 Install Declutch Lever piece 45 and Roll Pin piece 121 Install Drive Sleeve 7 Install Drive Sleeve piece 10 8 Install Bearing piece 33 and O Ring piece 129 on the Drive Sleeve 9 Install the Mechanical Stop Screws piece 58 Locking Nut piece 59 Thread Sea...

Page 50: ...2 20 Install the Handwheel Assembly pieces 146 41 112 136 39 34 137 116 115 38 and 36 21 Install Screws pieces 63 and 65 and Lockwashers pieces 64 and 66 to secure the Handwheel Assembly onto the housing Install Input Worm Motor Pinion Assembly 22 Install Input Worm Motor Pinion Assembly piece 52 53 124 and 31 into the Housing 23 Install Housing Seal O Ring piece 131 Grease Unit 24 Grease unit wit...

Page 51: ...nnections Limit Switches not set or Check Limit Switch development incorrectly set for agreement with the applicable wiring diagram If not set properly follow instructions in Section 5 6 Limit Switch and Mechanical Stop Settings Foreign material on switch Check continuity of microswitch contacts preventing good with an ohmmeter electrical contact Motor runs but no Actuator not coupled properly Ins...

Page 52: ...or making contact with wiring when installed Power surges Investigate control circuit for surges Premature Torque Torque Switch setting too low Increase Torque Switch setting as Switch trip required up to but not exceeding maximum setting established by the Torque Switch Limiter Plate Valve packing too tight Inspect valve packing for excessive tightness Repair valve by replacing packing as require...

Page 53: ...alignment Inspect worn gears for evidence of uneven wear pattern Excessive torque Valve running loads higher Inspect valve for possible cause of required to turn than expected high running loads In particular handwheel check for excessive tightness of valve packing proper lubrication of valve stem bent or damaged valve tight Stem Torque Nut fit worm or damaged Stem Nut Unit is not properly aligned...

Page 54: ...7 12 LY Installation and Maintenance for LY 1001 LY 2001 and LY 3001 LMAIM1501 This page is intentionally blank Flow Control Division Limitorque Actuation Systems ...

Page 55: ...isc Spring 6 81 Terminal Bracket 1 21 Spring Spacer 2 82 Fillister HD Machine Screw 2 22 Torque Switch Spacer 1 83 Lockwasher Internal Tooth 2 23 Worm Spacer 2 84 Pipe Plug 1 24 Ball Bearing 1 85 Pipe Plug 1 26 Thrust Washer 2 86 Hex Head Screw 4 27 Thrust Bearing 1 94 Roll Pin 1 30 Spring Sleeve 1 96 Groove Pin 1 31 Input Worm Shaft 1 97 Fillister HD Machine Screw 2 32 Torque Nut 1 98 Lockwasher ...

Page 56: ...wheel Shaft 1 146 Dial 1 189 Oil Seal Motor Shaft 1 147 Fillister HD Machine Screw 1 148 Lockwasher Internal Tooth 1 Worm Shaft Assembly Component Table 8 2 LY 2001 3001 Parts List Piece Description Qty Piece Description Qty 1 Housing 1 24 Ball Bearing Input 1 2 Top Plate 1 25 Lug Adapter 1 3 Control Cover 1 26 Thrust Washer 2 4 Conduit Adapter 1 27 Thrust Bearing 2 5 Bearing Cap 1 28 Stop Pin 2 6...

Page 57: ...taining Ring 1 65 Hex Head Cap Screw 2 116 Retainer Washer 1 66 Lockwasher 2 117 Roll Pin Spring 1 67 Hex Head Cap Screw 8 118 Key 1 68 Lockwasher 8 119 Retaining Ring 1 69 Handwheel Cap Plate 1 120 Heater Bracket Assembly 1 70 Fillister HD Machine Screw 1 121 Roll Pin Declutch Lever 1 71 Lockwasher 1 122 Roll Pin Declutch Shaft 1 72 Hex Head Cap Screw 1 123 Roll Pin Declutch Shaft 1 73 Lockwasher...

Page 58: ...eclutch Lever Plate 1 142 Hex Head Cap Screw 2 181 Drive Screw 2 143 Lockwasher 2 182 Cheater Bar Warning Label 1 144 Pipe Plug 2 183 Drive Screw 2 145 O Ring Window 1 184 Retaining Washer 1 146 Handwheel Label 1 186 Warning Label 1 147 Fillister HD Machine Screw 1 192 Gear Cover Gasket 1 148 Lockwasher Internal Tooth 1 193 Dial 1 157 Spacer 4 Worm Shaft Assembly Component Flow Control Division Li...

Page 59: ...imitorque LY valve actuators contact your local Limitorque distributor sales office or Limitorque 5114 Woodall Road P O Box 11318 Lynchburg VA 24506 1318 Telephone 434 528 4400 FAX 434 845 9736 All inquiries or orders must be accompanied by the following information 1 Unit Size 2 Limitorque Order Number Flow Control Division Limitorque Actuation Systems ...

Page 60: ...9 2 LY Installation and Maintenance for LY 1001 LY 2001 and LY 3001 LMAIM1501 This page is intentionally blank Flow Control Division Limitorque Actuation Systems ...

Page 61: ... Harmonics MIL STD 462 Method CSO1 and CSO2 Manufacturer s Name Limitorque a Flowserve Company Manufacturer s Address 5114 Woodall Road Lynchburg VA 24502 Importer s Name Limitorque a Flowserve Company Importer s Address Abex Road Newbury Berkshire RG14 5EY England Type and Description of Equipment Valve Actuators Model Number LY Series Note Tested with Limitorque products only I the undersigned h...

Page 62: ...10 2 LY Installation and Maintenance for LY 1001 LY 2001 and LY 3001 LMAIM1501 This page is intentionally blank Flow Control Division Limitorque Actuation Systems ...

Page 63: ...Flow Control Division Limitorque Actuation Systems Australian Distributor for Limitorque Acrodyne Pty Ltd 14 11 Havelock Road Bayswater Victoria 3153 Australia Phone 03 8727 7800 Fax 03 9729 8699 ...

Search results

Summary of Contents for LY 1001 Series

Reviews:

Related manuals for LY 1001 Series

Brands by name

Popular brands

Limitorque LY 1001 Series, Installation And Maintenance Manual

Search results

Summary of Contents for LY 1001 Series

Reviews:

Related manuals for LY 1001 Series

Brands by name

Popular brands