This manual provides installation instructions for the Gasboy Pulser Kits M04230K001
through M04230K013. The kits and associated models covered in this manual are listed and
described in the Kit Identification section.
Required Reading
Before installing a kit, the installer must read, understand, an d follow:
• This manual
• NFPA 30A, The Automotive and Marine Service Station Code
• NFPA 70, The National Electric Code
• Applicable federal, state and local codes and regulations
MDE-4282B
Gasboy Pulser Kits M04230K00X Installation
July 2005
Failure to do so may adversely affect the safe use and operation of the equipment.
Note: This kit must be installed by a Gasboy Authorized Service Contractor (ASC) to ensure
Required Tools
The following tools are needed to install the Pulser Kits:
warranty.
•Wrench Set
• Flat tip screwdriver
• Cross tip screwdriver
• Punches (to remove and install pins)
MDE-4282B Gasboy Pulser Kits M04230K00X Installation • July 2005Page 1
MDE-4282B Gasboy Pulser Kits M04230K00X Installation • July 2005Page 5
Introduction
Part NumberDescriptionQuantity
027044PLATE AND IDLER GEAR ASSY1
053920SCR 1/4-20X5/8 WSH HD TYP T1
025045ELBOW-CONDUIT 1/2 X 90 M/F MCH1
C08682TIE-WRAP,IDENTIF(1"X5/16) 5/8D1
MDE-4282Pulser Kit Installation Manual1
047401POLY BAG 5 X 61
018656CRTN 14.312 X 11.3751
Page 6MDE-4282B Gasboy Pulser Kit s M042 30K 00X Inst allatio n • July 2005
M04230K005 - KIT PLSR CC 9100Q, QX 100:1
Part NumberDescriptionQuantity
056895SPACER TOP .835 NOM.LGTH1
051806SCR 1/4-28X5/8 HHC3
068891WASHER,LOCK EXT 1/4 11147
046970PLATE-MOUNTING PULSER 100:11
056877SPACER .944 NOM.LENGTH (F)2
046972PLSR & CPLG ASSY;100:11
025015ELBOW-CONDUIT 1/2 X 45 M/F MCH1
0664001/2"UNY EXP PROOF COND UNION1
023939CONDUIT-BENT PULSER1 SINGLE1
051805SCR 1/4-20X5/8 HHC PL3
043225PIN SPIROL 5/64X7/16 CRS ZINC1
031035HUB-QUAN. SHAFT EXTENSION1
027041GEAR, QUANTITY1
049406RING RET 5133-25-ZF1
027044PLATE AND IDLER GEAR ASSY1
053920SCR 1/4-20X5/8 WSH HD TYP T1
025045ELBOW-CONDUIT 1/2 X 90 M/F MCH1
C08682TIE-WRAP,IDENTIF(1"X5/16) 5/8D1
MDE-4282Pulser Kit Installation Manual1
047401POLY BAG 5 X 61
018656CRTN 14.312 X 11.3751
Introduction
M04230K006 - KIT PLS R 1:1 9100Q, QX
Part NumberDescriptionQuantity
056895SPACER TOP .835 NOM.LGTH1
MDE-4282B Gasboy Pulser Kits M04230K00X Installation • July 2005Page 9
Introduction
Part NumberDescriptionQuantity
C08682TIE-WRAP,IDENTIF(1"X5/16) 5/8D1
MDE-4282Pulser Kit Installation Manual1
047401POLY BAG 5 X 61
018656CRTN 14.312 X 11.3751
Page 10MDE-4282B Gasb oy P ulser K its M042 30K0 0X I nstalla tion • J uly 2005
M04230K009 - KIT PLS R 1:1 9140Q, QX
Part NumberDescriptionQuantity
056895SPACER TOP .835 NOM.LGTH1
051806SCR 1/4-28X5/8 HHC3
068891WASHER,LOCK EXT 1/4 11147
046970PLATE-MOUNTING PULSER 100:11
056877SPACER .944 NOM.LENGTH (F)2
046969PLSR ASSY;1:1; 91EK LTR1
025015ELBOW-CONDUIT 1/2 X 45 M/F MCH1
0664001/2"UNY EXP PROOF COND UNION1
023952CONDUIT-BENT PULSER 401
051805SCR 1/4-20X5/8 HHC PL3
043225PIN SPIROL 5/64X7/16 CRS ZINC1
031035HUB-QUAN. SHAFT EXTENSION1
027041GEAR, QUANTITY1
049406RING RET 5133-25-ZF1
027044PLATE AND IDLER GEAR ASSY1
053920SCR 1/4-20X5/8 WSH HD TYP T1
025045ELBOW-CONDUIT 1/2 X 90 M/F MCH1
C08682TIE-WRAP,IDENTIF(1"X5/16) 5/8D1
MDE-4282Pulser Kit Installation Manual1
047401POLY BAG 5 X 61
018656CRTN 14.312 X 11.3751
Introduction
M04230K010 - KIT PLSR CZ 87Q 10:1 MONEY
Part NumberDescriptionQuantity
056895SPACER TOP .835 NOM.LGTH1
068891WASHER,LOCK EXT 1/4 11143
056877SPACER .944 NOM.LENGTH (F)2
032940KIT-PULSR VR 312020-7671
K14830SCREW, HEX HD CAP FINISHED3
023959CONDUIT-BENT PULSER -MONE1
N16289 20UNION EXP STD 1/2” M&F1
025045ELBOW-CONDUIT 1/2 X 90 M/1
C08682TIE-WRAP, IDENTIF (1”X5/16)1
MDE-4282Pulser Kit Installation Manual1
047401POLY BAG 5 X 61
018656CRTN 14.312 X 11.3751
M04230K011 - KIT PLSR CZ 87QTW 10:1 MONEY
Part NumberDescriptionQuantity
056895SPACER TOP .835 NOM.LGTH2
068891WASHER,LOCK EXT 1/4 11146
MDE-4282B Gasboy Pulser Kits M04230K00X Instal lation • July 2005P age 11
Introduction
Part NumberDescriptionQuantity
056877SPACER .944 NOM.LENGTH (F)4
056876SPACER .944 NOM.LENGTH (S)1
032940KIT-PULSR VR 312020-7672
023957SCREW, HEX HD CAP FINISHED1
023188CONDUIT-BENT PULSER -MONE1
N16289 20UNION EXP STD 1/2” M&F3
064830CONDUIT TEE, MACHINED1
000154CASTING - CONDUIT TEE1
023946CONDUIT - BENT PULSERS T TW1
038138CONDUIT 1/2 X 191
K14830SCREW HE X HD CAP FINISH6
023958CONDUIT _ BENT PULSER2 -MON1
038132CONDUIT 1/2 X 19-25/321
025045ELBOW-CONDUIT 1/2 X 90 M/1
005045ELBOW-CONDUIT 1/2 X 90 M/1
C08682TIE-WRAP, IDENTIF (1”X5/16)2
MDE-4282Pulser Kit Installation Manual1
047401POLY BAG 5 X 61
018656CRTN 14.312 X 11.3751
Page 12MDE-4282B Gasb oy P ulser K its M042 30K0 0X I nstalla tion • J uly 2005
M04230K012 - KIT PLSR 100:1 MONEY CM 87Q
Part NumberDescriptionQuantity
056895SPACER TOP .835 NOM.LGTH 1
068891WASHER,LOCK EXT 1/4 1114 3
056877SPACER .944 NOM.LENGTH (F 2
032942KIT-PLSR VR 312020-924 VR 1
K14830SCREW HE X HD CAP FINISHE D3
023959CONDUIT-BENT PULSER -MONE 1
N1628920UNION EXP STD 1/2" M&F 1
025045ELBOW-CONDUIT 1/2 X 90 M/ 1
C08682TIE-WRAP,IDENTIF(1"X5/16) 1
MDE-4282Pulser Kit Installation Manual1
047401POLY BAG 5 X 61
018656CRTN 14.312 X 11.3751
M04230K013 - KIT PLSR 100:1 MONEY CM 87QTW
Part NumberDescriptionQuantity
056895 SP ACER TOP .835 NOM.LGTH 2
068891 WASHER,LOCK EXT 1/4 1114 6
056877 SP ACER .944 NOM.LENGTH (F 4
032942 KIT-PLSR VR 312020-924 VR2
023957 CONDUIT-BENT PULSER1 -MON 1
N16289 20 UNION EXP STD 1/2" M&F3
064830 CONDUIT TEE, MACHINED 1
023946 CONDUIT-BENT PULSERS T TW 1
K14830 SCREW HEX HD CAP FINISHED 6
023958 CONDUIT-BENT PULSER2 -MON 1
025045 ELBOW-CONDUIT 1/2 X 90 M/ 1
C08682 TIE-WRAP,IDENTIF(1"X5/16) 2
MDE-4282Pulser Kit Installation Manual1
047401POLY BAG 5 X 61
018656CRTN 14.312 X 11.3751
Introduction
MDE-4282B Gasboy Pulser Kits M04230K00X Instal lation • July 2005P age 13
Important Safety Information
Important Safety Information
This section introduces the hazards and safety precautions associated with installing,
inspecting, maintaining or servicing this product. Before performing any task on this product,
read this safety information and the applicable sections in this manual, where additional
hazards and safety precau ti ons for your task will be found. Fir e, exp los ion, electrical shock or
pressure release could occur and cause death or serious injury if these safe service procedures
are not followed.
Preliminary Precautions
You are worki ng i n a pot ent ia ll y dan ger ous environment of flammable fuels, vapors, and high
voltage or pressures. Only trained or authorized individuals knowledgeable in the related
procedures should install, inspect, maintain or service this equipment
The first and most important information you must know is how to stop all fuel flow to the
pump and island.
Emergency Total Electrical Shut-Off
Locate the switch or circuit breakers that shut-off all power to all fueling equipment,
dispensing devices, and submerged turbine pumps (STPs). These you must operate in the
event of an emergency.
.
!
WARNING
The EMERGENCY STOP, ALL STOP, and PUMP STOP buttons at the cashier’s
station WILL NOT shut off electrical power to the pump/dispenser.
This means that even if you activate these stops, fuel may continue to flow
uncontrolled.
You must use the TOTAL ELECTRICAL SHUT-OFF in the case of an
emergency and not only these cashier station “stops.”
Total Electrical Shut-Off Before Access
Any procedure requiring access to electrical components or the electronics of the dispenser
requires total electrical shut-off of that unit.
NFPA 30A, Section 4-1.2, published by the National Fire Protection Association, requires the
installation o f a n ea sily accessible switch or circuit bre aker to shut-off the power to al l f uel ing
equipment, dispensing de vices and ST Ps in th e event of an emergency. Know the func tion a nd
location of this switc h or circuit brea ker before inspe cting, instal ling, maintaini ng, or servic ing
Gilbarco equipment.
Page 14MDE-4282B Gasb oy P ulser K its M042 30K0 0X I nstalla tion • J uly 2005
Important Safety Information
Evacuation, Barricading and Shut-Off
Any procedures requiring accessing the pump/dispenser or STPs requires the following three
actions:
•An evacuation of all unauthorized persons and vehicles
•Using safety tape or cones as barricades to the effected units
•A total electrical shut -off of that unit
Read this Manual
Read, understand and follow this manual and any other labels or related materials supplied
with this equipment. I f y ou do not understand a procedure, call a Gilbarco Authorized Service
Contractor or call the Gilbarco Support Center at 1-800-800-7498. It is imperative to your
safety and the safety of others to understand the procedures before beginning work.
Follow the Regulations
There is ap plicable info rmation in: NFPA 30A: Automotive and Marine Service Code; NFPA
70:
National Electrical Code (NEC); OSHA regulations; and federal, state, and local codes
which must be followed. Failure to install, inspect, maintain or service this equipment in
accordanc e with these codes, regul ations and sta ndards may lead to legal c itations with
penalties or affect the safe use and operation of the equipment.
Safety Symbols and Warning Words
This section provides important information about warning symbols and boxes.
Alert Symbol
This safety alert symbol is used in this manual and on warning labels to alert you to
a precaution which must be followed to prevent potential personal safety hazards. Obey safety
directives that follow this symbol to avoid possible injury or death.
Signal Words
These signal words used in this manual and on warning labels tell you the seriousness of
particular safety hazards. The precautions that follow must be followed to prevent death,
injury or damage to the equipment
• DANGER - This signal word is used to aler t you to a haza rd to uns afe pra ctice which wil l
result in death or serious injury
• WARN ING - This alerts you to a hazard or unsafe practice that could result in death or
serious injury.
• CAUTION with Alert symbol - This signal word designates a hazard or unsafe practice
which may result in minor injury.
• CAUTION without Alert symbol - When used by itself, CAUTION designates a hazard
or unsafe practice which may result in property or equipment damage.
MDE-4282B Gasboy Pulser Kits M04230K00X Instal lation • July 2005P age 15
Important Safety Information
Prevent Explosions and Fires
Fuels and their vapors will become explosive if ignited. Spilled or leaking fuels cause vapors.
Even filling customer tanks will cause explosive vapors in the vicinity of dispenser or island.
No Open Flames
Open flames from matches, lighters, welding torches or other sources can ignite
fuels and their vapors.
No Sparks - No Smoking
Sparks from starting vehicles, starting or using power tools, burning cigarettes,
cigars or pipes can also ignite fuels and their vapors. Static electricity, including an
electrostatic charge on your body, can cause a spark sufficient to ignite fuels and their vapors.
After getting out of a vehicle, touch the metal of your vehicle to discharge any electrostatic
charge before you approach the dispenser island.
Informing Emergency Personnel
Compile the following information for emergency personnel:
• Location of accident (e.g. address, front/back of building, etc.)
• Nature of accident (e.g. possible heart attack, run over by car, burns, etc.)
• Age of victim (e.g. baby, teenager, middle-age, elderly)
• Whether or not victim has received first aid (e.g. stopped bleeding by pressure, etc.)
• Whether or not victim has vomited (e.g. if swallowed or inhaled something, etc.)
IMPORTANT: Oxygen may be needed at scene if gasoline has been ingested or inhaled. Seek
medical advice immediately.
Other Useful Safety Information
This subsection provides additional safety information.
OSHA Lock-Out and Tag-Out Requirements
OSHA Standard 29 CFR 1910-147 Control o f Hazardo us Ener gy Sourc es (Lock- Out/Tag-Out)
covers ways to avoid personal injury because power was turned on or fuel pressure was
applied
(1) Turning off equipment power and fuel under pressure.
(2) Use of a locking device (breaker, valve, etc.) or label device with a warning tag.
unexpectedly while servicing equipment. The rule requires:
Station employees and service contractors need to understand and comply with this program
completely to ensure safety while th e equipment is down.
Page 16MDE-4282B Gasb oy P ulser K its M042 30K0 0X I nstalla tion • J uly 2005
Use Electrostatic Discharge Precautions
Place yourself at a neutral static-free potential by doing the following:
1 Touch an unpainted metal surface.
2 Use a wrist strap connected to a grounded metal frame or chassis.
Important Safety Information
MDE-4282B Gasboy Pulser Kits M04230K00X Instal lation • July 2005P age 17
Installing the Pulser Kit in Twin Unit
Installing the Pulser Kit in Twin Unit
Preparation
1 Request permission from the manager/owner to remove power from the unit and then remove
power using normal procedures. Observe the lockout/tagout safety procedures.
2 Using the proper key for the unit, unlock and remove the doors from both sides of the unit.
Place doors in a safe place to prevent damage or scratches.
3 On both sides of the unit, remove the two screws securing the bezel and remove the bezel.
Store bezels and screws in a safe place for reuse.
4 Remove the screws securing the dial face in place and remove the dial faces from each of the
computers on both sides. Store dial faces and screws in a safe place to prevent damage or
scratches.
5 Make sure you have the proper kit for the model dispenser to be retrofitted.
6 The computers will have to be temporarily moved to allow space between the units to install
the pulser parts.
Temporarily Moving the computers
To move the computers, proceed as follows:
1 Note that there are two drive shafts connected to the computer. Make a note of the exact
position of the shafts. Things to note are:
• Bottom (vertical) shaft i s se ttin g in a slot on the l ower end. The pins on th e sha ft are in the
shallower of the slots.
• The side shaft is pinned to the drive shaft in the computer and the rotating wheel has a
mark on it. The mark must be po int i ng up whe n re assembled to properly al ign the readout
number register.
2 Remove the pin from the side (horizontal) shaft mounted to the computer. Save pin for
reassembly.
3 Loosen and remove the three mounting bolts securing the computer in place. Save for
remounting.
4 Move the computer sufficiently to allow space for mounting the pulser parts (out of dispenser
if necessary). Care must b e take n to e nsu re th e lar g e gear on the side of t he comput er i s kept in
the same 'OFF" position.
5 Repeat the procedure for the second computer.
Page 18MDE-4282B Gasb oy P ulser K its M042 30K0 0X I nstalla tion • J uly 2005
Installing Drive Gear on Meter Computer Shaft
In the kit, locate two 043225 pins, two 031035 hubs, two 027401 gears, and two 049406
retaining rings.
1 On one of the computers, press a pin into the hole in the computer quantity shaft until it is
flush on one side of the shaft.
Installing the Pulser Kit in Twin Unit
Retaining Ring
Hub
Pin
Computer
Shaft
2 Place a hub on the shaft with the slotted portion of hub straddling the extending pin and align
hole in the hub with pin.
3 Push the pin through the hole in the hub until the pin is extending equally on both sides of the
hub.
4 Place a gear on the hub and align pin in the shaft with bearing slot in gear.
5 Secure gear in place by placing a retaining ring in the slot near the end of the shaft.
6 Repeat steps 1 through 5 on the shaft of the other computer.
Installing Plate and Idler Assembly
1 In the kit, locate two 053920 screws and two 027044 Plate and Idler Assemblies.
Note: The 053920 mounting screw for the Plate and Idler Assembly is a self-tapping screw.
Tu rning t he screw into the mounting hole in the computer si de fra me and then removing
it without the assembly in place will make mounting the assembly easier.
2 At one of the computers, hold a Plate and Idler Gear Assembly in place and loosely secure
with the mounting screw. Boss and bracket holes in the computer align assembly for proper
gear meshing.
Plate and Idler
Gear Assembly
Mounting
Screw
Note: This illustration is shown rotated 90 degrees from its installed position.
MDE-4282B Gasboy Pulser Kits M04230K00X Instal lation • July 2005P age 19
Installing the Pulser Kit in Twin Unit
CAUTION
Excessive tightening of mounting screw will crack the plastic plate
3 Ensure proper gear position, alignment, and meshing and tighten mounting screw.
4 Repeat Steps 2 through 4 to mount second Plate and Idler Gear Assembly on other computer.
.
Assembling 046970 Pulser Mounting Plate and 0469XX Pulser and
Coupling Assembly
1 In the kit, locate t wo 046970 mounti ng plates , two 0469XX* Pul ser and Coupl ing Assembl ies,
six 051805 screws, and six 068891 lock washers.
*The part number depends on which kit is being installed. See Parts List for part number.
2 Place a mounting plate on a Pulser and Coupling Assembly, align the three mounting holes,
and loosely secure with three screws and three lock w ashers.
3 Tighten all screws equally.
4 Repeat steps 2 and 3 for the other mounting plate and pulser and coupling assembly.
Completing Assembly and Mounting Pulser Units
1 In the kit, locate the foll owing parts:
• two 0469XX* Pulser and Coupling Assemblies
• two 056895 Spacers
• two 056877 Spacers
• four 051806 screws
• four 068891 washers
• two 025015 elbows
• one 023945 conduit - bent pulser twin
• one 023944 conduit - bent pulser twin
2 Feed the pulser and coupling assembly wires through the 025015 elbow and install the elbow
on the pulser and coupling assembly.
023945 conduit
025015 elbows
023944 conduit
Front pulser
Page 20MDE-4282B Gasb oy P ulser K its M042 30K0 0X I nstalla tion • J uly 2005
Installing the Pulser Kit in Twin Unit
3 Repeat previous step for second pulser and coupling assembly.
4 Install the 023944 conduit on the front pulser and coupling assembly (the one with the black
band near the end of the wires) and the 023945 on the back pulser and coupling assembly.
Note: The front of the dispenser is the side with the junction box.The front pulser (mounts on
the left computer) is the one with the black band near the end of the wires.
5 On the left computer, remove and discard two assembly screws and replace with the two
spacers in positions shown in following figure. Notice the difference in part numbers and
positions of the spacers.
M056895 Spacers
M056877 Spacers
6 Place the front pulser (one with 023944 conduit mounted on it) in position (installs on the left
computer) by positioning the conduit mounted on the pulser through the slot in the unit
between the computers. Ensure that the pinned shaft on the pulser aligns with the center hole
in the idler gear and the pin seats in the slot in the gear. The mounting holes in the mounting
plate must align with th e holes in the spacers.
7 Loosely secure in place with two washers and two screws.
8 After careful examinat ion to ensure that the parts a r e meshed properly, tighten the screw s.
9 Repeat procedures in Steps 2 through 5 for the second pulser and coupling assembly (installs
on the right computer).
Remounting the Computers
To remount the computers, proceed as follows:
1 At the side shaft mounting, turn the rotating wheel (on the computer) until the mark on the
wheel is pointing upward.
2 Mount the shaft on the computer and pin with pin saved during removal.
3 Mount the vertical shaft in the slot noted during removal (pin in shallow slots).
MDE-4282B Gasboy Pulser Kits M04230K00X Instal lation • July 2005P age 21
Installing the Pulser Kit in Twin Unit
4 Move the computer in place aligning the mounting holes and ensuring that the two shafts are
properly seated (as noted prior to moving the computers).
5 Secure the computer in place with the mounting bolts saved during the initial moving
procedure.
Installing the Remaining Conduit
1 In the kit, locate the foll owing parts:
• four 066400 conduit unions
• one 064830 conduit tee
• one 025045 conduit elbow
• one 023946 conduit - bent pulser twin
Note: Feed wires through conduit and fittings as it is assembled.
2 Install a 066400 conduit union on the 023945 conduit and 023944 conduit (mounted to the
pulser and coupling assemblies).
Conduit from Pulsers
064830 Conduit
Tee
023946 conduit
025045 elbow
066400 Unions
3 Install the 023946 conduit on the 064830 conduit tee (orient as shown in figure above).
4 Install the 025045 conduit elbow on the 023946 conduit (on end with bend near the end).
5 Install the 064830 conduit tee/023946 conduit assembly on the two unions installed in step 2.
6 Install a 066400 union on the M025045 conduit elbow
7 Install conduit/elbow/union assembly between tee and junction box. Be sure the wires are
extending into junction box.
Page 22MDE-4282B Gasb oy P ulser K its M042 30K0 0X I nstalla tion • J uly 2005
Connecting Wires in Junction Box
1 Remove the 12 screws securing the cover on the junction box. Save screws for remounting.
2 Inside the junction box, connect the two green ground leads from the pulsers to a secure
known ground.
3 T o conne ct the leads for th e pulser s, foll ow the wir ing d iagram in the ins tallat ion manual of the
specific fuel management system you are using to connect wires properly.
4 Using the recommended grease to seal the cover, remount the junction box cover and secure
with the 12 screws removed in Step 1.
Testing/Checking Operation
Only the 10:1 pulser can be tested for operation. Test the 10:1 pulser as follows:
Note: To test other pulsers, a standard transaction must be run. Look at the transaction print
out from the system to ensure proper operation.
Installing the Pulser Kit in Twin Unit
1 Restore power to the unit.
2 Connect a mechanical voltmeter on the two orange signal wires.
3 Set the voltmeter to read Ohms.
4 Slowly dispense fuel and observe that the needle d eflects upsc ale for each 1/10 gallon fuel.
Completing Installation
1 After determining that the pulsers are functioning properly, remount the dial faces on the two
computers and secure with the screws saved during removal.
2 Remount the bezels on both sides of the unit and sec ure with th e screws sav ed during removal.
3 Remount the doors on both sides of the unit and secure with the keylocks.
4 Inform the manager/owner that the unit can be returned back to service.
MDE-4282B Gasboy Pulser Kits M04230K00X Instal lation • July 2005P age 23
Installing the Pulser Kit in Single Unit
Installing the Pulser Kit in Single Unit
Preparation
1 Request permission from the manager/owner to remove power from the unit and then remove
power using normal procedures. Observe the lockout/tagout safety procedures.
2 Using the proper key for the unit, unlock and remove the doors from both sides of the unit.
Place doors in a safe place to prevent damage or scratches.
3 On both sides of the unit, remove the two screws securing the bezel and remove the bezel.
Store bezels and screws in a safe place for reuse.
4 Remove the screws securing the dial face in place and remove the dial faces from both sides
the computer. Store dial faces and screws in a safe place to prevent damage or scratches.
5 Make sure you have the proper kit for the model dispenser to be retrofitted.
Installing Drive Gear on Meter Computer Shaft
In the kit, locate a 043225 pin, a 031035 hub, a 027401 gear, and a 049406 retaining ring.
1 On the computer, press a pin into the hole in the computer shaft until it is flush on one side of
the shaft.
Retaining Ring
2 Place a hub on the shaft with the slotted portion of hub straddling the extending pin and align
Hub
hole in the hub with pin.
3 Push the pin through the hole in the hub until the pin is extending equally on both sides of the
hub.
4 Place a gear on the hub and align pin in the shaft with bearing slot in gear.
Pin
Computer
Shaft
5 Secure gear in place by placing a retaining ring in the slot near the end of the shaft.
Page 24MDE-4282B Gasb oy P ulser K its M042 30K0 0X I nstalla tion • J uly 2005
Installing the Pulser Kit in Single Unit
Installing Plate and Idler Assembly
1 In the kit, locate the 053920 screw and the 027044 Plate and Idler Assembly.
Note: The 053920 mounting screw for the Plate and Idler Assembly is a self-tapping screw.
Tu rning t he screw into the mounting hole in the computer si de fra me and then removing
it without the assembly in place will make mounting the assembly easier.
2 Hold the Plate and Idler Gear Assembly in place and loosely secure with the mounting screw.
Boss and bracket hole in the computer align assembly for proper gear meshing.
Plate and Idler
Gear Assembly
Mounting
Screw
Note: This illustration is shown rotated 90 degrees from its installed position.
CAUTION
Excessive tightening of mounting screw will crack the plastic plate.
3 Ensure proper gear position, alignment, and meshing and tighten mounting screw.
Assembling 046970 Pulser Mounting Plate and 046973 (10:1) or 046972
(100:1) Pulser and Coupling Assembly
1 In the kit, locate a 046970 mounting plate, a 0469XX* Pulser and Coupling Assembly, three
051805 screws, and three 068891 lock washers.
*The part number depends on which kit is being in st alled - 046973 for 10: 1, 046972 for 100:1
2 Place the mounting plate on the Pulser and Coupling Assembly, align the three mounting
holes, and lo osely secure with three sc rews and three lock washers.
3 Tighten all screws equally.
MDE-4282B Gasboy Pulser Kits M04230K00X Instal lation • July 2005P age 25
Installing the Pulser Kit in Single Unit
Completing Assembly and Mounting Pulser Unit
1 In the kit, locate the foll owing parts:
• 0469XX* Pulser and Coupling Assembly
• 056895 Spacer
• 056877 Spacer
• two 051806 screws
• two 068891 washers
• one 025015 elbow
• one 023939 conduit - bent pulser single
2 Feed the pulser and coupling assembly wires through the 025015 elbow and install the elbow
on the pulser and coupling assembly.
Pulser and
Coupling
Assembly
056895 spacer
056877 spacer
025015 elbows
023939 conduit
066400 union
025045 elbow
3 Install the 023939 conduit on the pulser and coupling assembly (to the elbow installed in
previous step).
4 Remove and discard two ass embly screws a nd replace with the two sp acers in po sitions s hown
in the previous figure. Notice the difference in part numbers and positions of the spacers.
5 Place the pulser in position by positioning the conduit mounted on the pulser through the slot
in the unit. Ensure that the pinned shaft on the pulser aligns with the center hole in the idler
gear and the pin seats in the slot in the gear. The mounting holes in the mounting plate must
align with the holes in the spacers .
Page 26MDE-4282B Gasb oy P ulser K its M042 30K0 0X I nstalla tion • J uly 2005
Installing the Pulser Kit in Single Unit
6 Loosely secure in place with two washers and two screws.
7 After careful examinat ion to ensure that the parts a r e meshed properly, tighten the screw s.
8 Ensuring that the wires are extending through the conduit, install the 066400 union on the
conduit connected to the pulser.
9 Install the 025045 elbow in the top of the junction box.
10 Connect the union to the elbow installed in the junction box. Make sure the wires extend into
the junction box.
Connecting Wires in Junction Box
1 Remove the 12 screws securing the cover on the junction box. Save screws for remounting.
2 Inside the junction box, connect the green ground lead from the pulser to a secure known
ground.
3 Refer to your Fuel Management System installation manual for proper wiring of the pulsers.
4 Using the recommended grease to seal the cover, remount the junction box cover and secure
with the 12 screws removed in Step 1.
Testing/Checking Operation
Only the 10:1 pulser can be tested for operation. Test the 10:1 pulser as follows:
Note: To test other pulsers, a standard transaction must be run. Look at the transaction print
out from the system to ensure proper operation.
1 Restore power to the unit.
2 Connect a mechanical voltmeter on the two orange signal wires.
3 Set the voltmeter to read Ohms.
4 Slowly dispense fuel and observe that the needle d eflects upsc ale for each 1/10 gallon fuel.
Completing Installation
1 After determining that the pulser is functioning properly, remount the dial faces on the
computer and secure with the screws saved during removal.
2 Remount the bezels on both sides of the unit and sec ure with th e screws sav ed during removal.
3 Remount the doors on both sides of the unit and secure with the keylocks.
4 Inform the manager/owner that the unit can be returned back to service.
MDE-4282B Gasboy Pulser Kits M04230K00X Instal lation • July 2005P age 27