MN06011
Contents
1. Revisions included in MN06011 Issue Rev 0 1 7 03 Eliminated CENELEC certification information on Page 2 The specifications contained herein are subject to change without notice and any user of said specifications should verify from the manufacturer that the specifications are currently in effect Otherwise the manufacturer assumes no responsibility for the use of specifications which may have been changed and are no longer in effect Headquarters 1803 Gears Road Houston TX 77067 USA Phone 281 260 2190 Fax 281 260 2191 Gas Measurement Products Liquid Measurement Products Erie PA USA Phone 814 898 5000 Erie PA USA Phone 814 898 5000 Beijing China Phone 86 10 6500 2251 Thetford England Phone 44 1842 82 2900 Los Angeles CA USA Phone 661 702 8660 Singapore Phone 65 6861 3011 Kongsberg Norway Phone 47 32 286 700 Slough England Phone 44 1753 57 1515 Chennai India Phone 91 44 450 4400 Buenos Aires Argentina Phone 54 11 4312 4736 Ellerbek Germany Phone 49 4101 3040 Integrated Measurement Systems Barcelona Spain Phone 34 93 201 0989 Corpus Christi TX USA Phone 361 289 3400 Moscow Russia rote 439 Kongsberg Norway Phone 47 32 286 700 Melbourne Australia Phone 61 3 9807 2818 San Juan Puerto Rico Phone 787 274 3760 United Arab Emirates Dubai Phone 971 4 331 3646 Visit our website at www fmctechnologies com Printed in U S A 6 85 FMC Technologies Measurement Solutions Inc All rights reserved2. P IVIC Technologies Smith Meter Load Printer Service Issue Rev 0 1 7 03 Bulletin MNO6011 Contents Section 1 lIntroduction E Page 2 Section 2 Servicing WE Page 3 Ree UE E Page 3 Printer Head Assembly Removal EE Page 3 Electronic Ticket Printer Board ETP Removal ee ale Page 4 Electronic Ticket Printer Board ETP Replacement i Page 4 Stepper Motor Removal EE Page 5 Stepper Motor Replacement eee ee eee ee e ee Page 5 Printer Head Removal E Page 5 Vl E Page 6 OPV OION nle Page 6 OPV OPON Replacement ee Page 7 Section 3 Troubleshooting e Page 8 Section 4 Related Publications re eeeerr en rreeea aerea aa ere aaa erena nar aea narra aan eranan o Page 9 The Most Trusted Name In Measurement Section 1 Introduction The Smith Meter Load Printer is an electromechanical ticket printer capable of accumulating and printing pulses received from a transmitting device The Load Printer requires electrical power either at 110 Vac or 220 Vac 15 The ticket printer may be either accumulative or zero Start Further details are listed in the Specification Bulletin and Installation Manual The Load Printer is impervious to most environmental fluctuations and provides service over a wide range of operating conditions The Load Printer is contained within an explosion proof housing meeting the follow ing requirements Page 2 e MNO6011 e UL Listed and CSA ce
3. MN06011 Issue Rev 0 1 7 03
4. ad Assembly Removal Section to reassemble Caution When replacing the printer head assembly be sure that the wires connecting the assembly and the ETP Board are not pinched between the plate and the housing Issue Rev 0 1 7 03 Printer Head Removal 1 Remove the crank arm by removing the screw in the crank arm body Figure 6 2 Remove the top cover by removing the four slotted head screws located in the front and in the rear of the unit Figure 6 Crank Arm Cover Crank Arm Screw Screws 2 Under Cover Screws Hidden Figure 8 Load Printer Cover Removal 3 Remove the printer head by first removing the four 7 16 hex head bolts Figure 9 4 Lift the printer head straight up 7 16 Hex Bolt Figure 9 Printer Head Removal MN06011 e Page 5 Section 2 Servicing continued Printer Head Replacement 1 Set the identifier code wheels to the desired designa tion Figure 10 See Installation Manual 2 Remove the drive gear from the defective unit by re moving the pin retaining the gear to the shaft Figure 11 Reinstall gear on replacement unit Note This task is only required if the replacement printer head does not have a plastic drive gear 3 Reverse the above steps to reassemble Code er gt Figure 10 Set Code Wheels Drive Gear Pin Figure 11 Drive Gear Removal Tray Switch Removal 1 Remove printer head assembly according to the in str
5. e 14 OPV Board Issue Rev 0 1 7 03 MN06011 e Page 7 Warning Voltage checks must be done in a non hazardous environment Remove all electrical power before ser vicing Fault Symptom Printer not counting Motor chattering Volume on printer incorrect No signal from ticket tray switch Section 3 Troubleshooting MO OU gt i This section contains a listing of fault symptoms possible causes and corrective actions Removal and replace ment procedures for a particular assembly will be found in the preceding section of this manual Possible Cause No flow in system No power to unit Wiring incorrect or open Fuse F1 open Signal wiring incorrect or open Ticket printer board inoperative G Transformer and or bridge rectifier inoperative Stepper motor inoperative Transmitting device inoperative J A A B C D OPV Board inoperative Improper jumper Wiring loose Jumpers set incorrectly on ETP Board Printer board not operating correctly Incorrect pulse count received from transmitting device OPV Board not operating correctly Wheels on mechanical counter binding or other mechanical failure in printing mechanism Actuation arm out of adjustment Switch defective Incorrect or defective wiring ETP Board defective MO OU gt 1 Corrective Action Verify flow Check circuit breaker Ch
6. e the wires on the terminal strip Note It is easier to remove the ETP Board together with the bridge rectifier and transformer when replacing the ETP Board The wires from the ETP Board to the other components are difficult to connect when all the compo nents are inside the housing The following steps enable you to unwire and rewire the components more easily and accurately 3 Remove the screws at the front and rear of the ETP Screws ETP Board Figure 5 ETP Board Removal Page 4 e MNO6011 Board Figure 5 4 Remove the screw securing the bridge rectifier Figure 6 5 Remove the two screws securing the transformer Fig ure 6 to the housing floor 6 Lift the ETP Board rectifier and transformer out of the housing 7 Carefully remove the four wires at the bottom of the transformer 8 Remove the two wires on the bridge rectifier that come from the upper two taps of the transformer Electronic Ticket Printer Board Replacement 1 Unwrap replacement ETP Board 2 Important Check that the jumper plugs on the ETP Board are installed in the same place on the new board as on the old board 3 Refer to Figure 6 and carefully connect the wires from the ETP Board to the bridge rectifier and transformer Important When connecting the wires to the trans former use care in sliding the connectors onto the transformer taps The taps are easily broken if ex treme force is used 4 Reverse the steps in Pri
7. eck wiring Replace Check wiring between transmitting device and Load Printer Terminals 1 and 2 Replace ETP Board G Gheck replace either or both items B C Reference Service Manual for that E F A B C D Be sure CN1 between motor and ETP Board is connected properly Replace stepper motor Reference Service Manual for that device Replace OPV Board Be sure jumper is in proper position See Page 4 Check wire crimps and screw connections Check plugs on ETP Board See Page 4 Replace ETP Board device Replace OPV Board Reference Service Manual for the mechanical printer With the tray cranked in adjust arm so that switch is closed Replace switch Check and correct wiring Replace board Note When removing a component from the Load Printer be sure the wires are marked for the proper replacement Page 8 e MNO6011 Issue Rev 0 1 7 03 Issue Rev 0 1 7 03 MN06011 e Page 9 Section 4 Related Publications The following literature can be obtained from FMC Technologies Measurement Solutions Inc Literature Fulfillment at johno gohrs com or online at www fmctechnologies com measurementsolutions When requesting literature from Literature Fulfillment please reference the appropriate bulletin number and title Load Printer Pec aan Bulletin SS06004 IEN OPerdlio ilo Bulletin MN06010 Veeder Root Meter Register with Ticket Printer uk 8 012
8. nd lift the front part carefully Caution A wiring harness from the stepper motor to the ETP Board is plugged in at the front of the Load Printer The wiring harness may be damaged if care is not used when lifting the front panel of the printer head plate Figure 2 Issue Rev 0 1 7 03 Printer Head Plate Lift Front Carefully Figure 2 Removing Printer Head Plate 5 Remove the stepper motor harness plug The plug is located at the front inside the housing on the ETP Board Squeeze the locking tabs at the top and bottom and pull the plug away from the ETP Board 6 Lift the printer head assembly to gain access to the tray switch Figure 3 7 Remove the two wires on the ticket tray switch and the tie wraps that secure the ticket tray switch wires to the stepper motor Figure 3 8 Remove the printer head plate and set it aside Be careful that the unit does not tip or fall damaging the stepper motor or the printer head Tray Switch Stepper Motor Harness and Plug Wires Removed Tray Switch Figure 3 Underside of Printer Head Plate MN06011 e Page 3 Section 2 Servicing continued Electronic Ticket Printer ETP Board Removal 1 Record the wire numbers or the color code of the wire terminations on the terminal strip of the ETP Board These wires must be removed before removing the ETP Board Figure 4 EPT Board Terminal Strip Figure 4 ETP Board Removal 2 Remov
9. nter Head Assembly Removal and Electronic Ticket Printer Board Removal Sections Pages 3 and 4 Caution When replacing the printer head assembly be sure that the wires connecting the assembly and the ETP board are not pinched between the plate and the housing Bridge E WW Rectifier a 1 Se k Ke bk di 1 P ye d Ki D HG 4 D L Fu L a lt E E L 1 a L RE ta Screw ____________________________ Si Transformer at RE O A Figure 6 Transformer Removal Issue Rev 0 1 7 03 Section 2 Servicing continued Stepper Motor Removal 1 Remove the printer head assembly according to the instructions on Page 3 The stepper motor is located on the underside of the assembly 2 Remove the four slot head screws retaining the resis tors Figure 7 3 Remove the three slot head screws retaining the step per motor Figure 7 4 Remove the pin and gear from the stepper motor shaft Figure 7 Figure 7 Stepper Motor Removal Removal Stepper Motor Replacement 1 Install the gear and pin to the stepper motor shaft 2 Before tightening the screws that retain the stepper motor be sure the teeth on the gears are not bot tomed When the screws are tight the large gear should move a fraction of an inch before engaging the stepper motor gear 3 Heat sink compound must be applied to the flat side of the resistors before mounting them to the plate 4 Reverse the steps in Printer He
10. rtified for use in Class I Groups C and D Division 1 and 2 The unit also meets NEMA IV weatherproofing The Smith Meter Load Printer will perform at temperatures down to 40 F 40 C without the need for a supplemen tary heater thermostat system This manual contains information for servicing a prop erly installed Load Printer Read and understand the contents of this manual before attempting any service procedure Issue Rev 0 1 7 03 Section 2 Servicing This section contains instructions for the removal and installation of the Load Printer component parts Warning Power must be removed before opening the unit ina hazardous area Note Before starting any service procedure record the ticket reading and the Totalizer reading for purposes of accountability Tools Required 6 mm Allen wrench Medium blade screwdriver 7 16 Allen wrench Thermal joint compound or equivalent Thermalcote Thermalloy Stock 249 Printer Head Assembly Removal Crank Arm Cover Crank Arm Screw Ke Screws 2 Under Cover Hidden Figure 1 Load Printer Cover Removal 1 Remove crank arm by removing screw in crank arm body Figure 1 2 Remove top cover by removing the four 4 slotted head screws located at the front and rear Figure 1 3 Remove printer head plate by removing the fourteen 6 mm Allen screws located around the perimeter of the plate Figure 2 4 Grasp the ticket printer head and plate a
11. uctions under Printer Head Removal Section Page 5 2 The switch is on the underside of the assembly plate 3 Remove the two bracket screws 4 Remove the switch from the bracket Page 6 e MNO6011 Tray Switch Replacement 1 When reassembling the switch and bracket to the plate be sure the switch actuator arm is inside the switch actuator 2 Reverse the steps in Printer Head Removal Section Page 5 to reassemble OPV Option Removal 1 Remove the cover and printer head assembly Figure 12 according to the instructions under Printer Head Assembly Removal Section Page 5 Steps 1 8 2 For easy access to the OPV Board remove the ETP Board according to the instructions under Electronic Ticket Printer Board Removal Section Page 4 Steps 1 3 3 Remove the wires connecting the ETP and the OPV Boards from Terminals 1 2 3 and 4 Figure 13 4 Remove the wires from 11 and 12 5 Remove the four screws connecting the ETP and the OPV Boards Figure 13 Figure 13 OPV Removal Issue Rev 0 1 7 03 Section 2 Servicing continued OPV Option Replacement 1 Before replacing the OPV Board be sure the thumbwheel switch is set to the option required by the system Reference the board that was just removed The thumbwheel is numbered from one 1 to zero 0 Each number designates a specific divide circuit Zero 0 means being divided by ten 10 2 Install the components in the reverse order Figur
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