SATAM 7888 Series Owner's manual

SATAM Siège Social : Paris Nord II – 5, rue des Chardonnerets
Usine de Falaise – Avenue de Verdun – B.P. 129 – 14700 FALAISE – France B.P. 85012 – Tremblay- en-France – 95931 Roissy C.D.G. Cedex - France
Tél. : [phone] Tél. : [phone]
Fax : [phone] Fax : [phone]
SIRET 495 233 124 000 17 SA au capital de 6 037 000 € – RCS Bobigny B 495 233 124
CODE APE 2813 Z SIRET 495 233 124 000 17 – Code APE 2813 Z – N° TVA : FR 48 495 233 124
SERIES 7888 METER PRINTER
MANUAL
DESCRIPTION - INSTALLATION - OPERATION -
SERVICING
U508219-e – Revision 2 – 25 February 2009
This document consists of 18 pages, including the flyleaf
This document is the property of SATAM
And may not transmitted to third parties without prior authorisation
SATAM may modify this document without prior authorisation
CONFORME à la directive européenne 94/9/CE – ATEX
In conformity with the European directive 94/9/CE-ATEX

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Summary
SECTION 1. INTRODUCTION.......................................................................................................................... 3
A. GENERAL ..................................................................................................................................................... 3
SECTION 2. DESCRIPTION.............................................................................................................................. 4
A. OPERATION OF ZERO START PRINTER.................................................................................................. 4
B. OPERATION OF ACCUMULATIVE PRINTER.......................................................................................... 4
SECTION 3. PRINTER REMOVAL AND INSTALLATION........................................................................ 6
A. REMOVAL.................................................................................................................................................... 6
B. INSTALLATION........................................................................................................................................... 6
SECTION 4. CLEANING AND LUBRICATING............................................................................................. 7
A. GENERAL ..................................................................................................................................................... 7
B. CLEANING.................................................................................................................................................... 7
C. RECOMMENDED LUBRICATION............................................................................................................. 7
D. LUBRICATION POINTS.............................................................................................................................. 8
SECTION 5. TROUBLESHOOTING................................................................................................................. 9
A. GENERAL CHECKS..................................................................................................................................... 9
B. TROUBLESHOOTING. .............................................................................................................................. 12
C. TICKET POSITION ADJUSTMENT.......................................................................................................... 12
D. SALES NUMBER ADVANCING MECHANISM INSPECTION.............................................................. 13
E. RIGHT-HAND WHEEL INCHING MECHANISM ADJUSTMENT......................................................... 14
SECTION 6. REPAIR AND REPLACEMENT............................................................................................... 14
A. TICKET TRAY REMOVAL........................................................................................................................ 14
B. WHEEL REMOVAL.................................................................................................................................... 15
C. WHEEL INSTALLATION. ......................................................................................................................... 15
F OR Z ERO S TART P RINTERS ............................................................................................................................... 15
FOR ACCUMUIATIVE PRINTERS................................................................................................................ 15
D. TICKETTRAYINSTALLATION................................................................................................................ 15
E. RESET GEARS REPLACEMENT AND TIMING OF PRINTER............................................................... 16
SECTION 7. INSTALLATION INSTRUCTIONS.......................................................................................... 17
FOR KITS 312020-357, -423, -675, AND -893.................................................................................................. 17
A. INTRODUCTION........................................................................................................................................ 17
B. PARTS LIST. ............................................................................................................................................... 17
C. INSTALLATION INSTRUCTIONS............................................................................................................ 17
D. OPERATIONAL CHECK............................................................................................................................ 18

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SECTION 1. INTRODUCTION
A. GENERAL
These instructions are for servicing the Series 7888 Printer Registers.
Every Meter Register is thoroughly tested at the meter factory when installed on the meter. However,
like any precision mechanism, it requires periodic care to ensure maximum service. This manual is for
use in areas where factory rebuilding facilities and adequate exchange stocks are not readily
accessible.
Where manufacturer's replacement stocks are available, it is important that no attempt be made to
repair any meter register defective within the terms of the warranty as by doing so, the warranty is void
and the user is deprived of the protection provided by the warranty. It is recommended that, when
possible, meter registers be replaced and the defective unit returned to the meter manufacturer.

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Figure 1. Series 7888 Meter Printer Mounted on Series 7887 Meter Register
SECTION 2. DESCRIPTION
A. OPERATION OF ZERO START PRINTER.
The Series 788800 Meter Printer (Zero Start)
mechanically records and prints digital
information delivered to its drive shaft. This
shaft positions the print wheels according to
the ratio of internal and external gears. Reset
and print operations are manually actuated.
The Zero Start Meter Printer is so named
because it begins the count at zero and returns
to zero when reset. The printed total is the
amount of the delivery.
1. Drive. The shaft, Figure 2, on the bottom of
the printer is driven by a bevel gear from a
meter register or other equipment. The
printer's bevel gear and shaft assembly turns
in a counterclockwise direction. The internal
bevel gear on the shaft drives the clutch
assembly, associated pin ions and the gear
assembly of the right-hand print wheel.
Note: The zero start clutch assembly prevents
the print wheels from turning in a reverse
direction.
2. Reset. During printing operation, the print
wheels, Figure 2, are reset to zero through
rotation of the reset gear train and reset shaft,
Figure 3. During the "Print ln" cycle, one
complete clockwise revolution of the reset
drive gear turns the reset shaft gear and reset
shaft to reset the print wheels to zero.
3. Printing. ln printing operation, a ticket is
inserted into the slot of the ticket tray unit it
bottoms on the internal stop.
a. As the printing knob is turned, the reset
drive gear, Figure 3, makes one complete
clockwise revolution until a positive stop is
reached. As the ticket tray moves into position,
the seal pin pierces the ticket, holding it in
place. This initial printing is made with wheels
at zero.
b. At the completion of delivery, the knob is
turned in a clockwise direction one complete
turn until the stop is again reached. During this
cycle the second printing is made recording
the amount of delivery. At the end of the print
cycle, the ticket tray returns to its original
position and the gear pin releases the ticket.
B. OPERATION OF ACCUMULATIVE
PRINTER.
The Series 788801 Meter Printer
(Accumulative) mechanically records and
prints digital information delivered to its drive
shaft. This shaft positions the print wheels
according to the ratio of internal and external
gears. Print operations are manually actuated.
The Accumulative Meter Printer is so named
because it is a non-resetting type that begins
the count at the accumulated total of the last
delivery, prints it, accumulates a new total for
the new delivery and prints it. The amount
delivered must be calculated by the operator:

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Figure 2. Drive Train ( Zero Start) Figure 4. Drive Train ( Accumulative)
Figure 3. Reset Train (Zero Start) Figure 5. Tray Actuating Train( accumulative)

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1. Drive. The shaft, Figure 4, on the bottom of
the printer is driven by a bevel gear from a
meter register or other equipment. The
printer's bevel gear and shaft assembly turns
in a counterclockwise direction. The internal
bevel gear on the shaft drives the clutch
assembly, associated pinions and the gear
assembly of the right-hand print wheel.
2. Printing. ln printing operation, a ticket is
inserted into the slot of the ticket tray until it
bottoms on the internal stop.
a. As the printing knob is turned, the reset
drive gear, Figure 5, makes one complete
clockwise revolution until a positive stop is
reached. As the ticket tray moves into position,
by means of the tray actuating cam and gear,
the seal pin pierces the ticket, holding it in
place. This initial printing is made with wheels
as they were at the completion of the last
delivery.
b. At the completion of delivery, the knob is
turned in a clockwise direction one complete
turn until the stop is again reached. During this
cycle the second printing is made recording
the accumulative total of this delivery. At the
end of the print cycle, the ticket tray returns to
its original position and the seal pin releases
the ticket.
SECTION 3. PRINTER REMOVAL AND
INSTALLATION
A. REMOVAL.
Before maintenance, remove the printer from
the meter register as follows:
1. Break the seal and remove four bolts on the
bottom corners of the meter register.
2. Remove the screw from the center of the
printer knob and remove knob, shaft extension
and washers from the printer. Remove the
cover.
3. Remove the bolts securing the printer frame
to the meter register. Remove the printer.
B. INSTALLATION.
After maintenance, install the printer onto the
meter register as follows:
1. If the meter register is still in the case,
remove the three screws holding it and lift the
register from the case. Reset the register to
zero by turning the small gear at the left end of
the reset shaft counterclockwise.
2. Install printer knob and shaft extension on
printer and turn it until tray is in the outward
position and seal pin down. Remove printer
knob and shaft extension.
3. Rotate the large idler gear (B) so that the
timing marks on it and the printer gear (A)
align. See Figure 6. It may be necessary to
hold the idler gear in position until the printer is
mounted and the idler gear and print gear
engage.
4. Mount the printer onto the meter register
and secure with bolts.
5. Check the position of the timing marks on
the printer gear (A), idler gear (B) and register
gear (C). They must be in the position shown
in Figure 6.
6. Loosen the printer bevel gear set screw and
adjust for proper backlash between the printer
bevel gear and the meter register drive gear as
necessary (Figure 20).
7. Place assembly in register case and secure
with three screws.
8. install printer cover using four corner bolts
under the register.
9. install the large steel washer, then the
rubber washer on the slotted end of the shaft
extension.
10. lnsert shaft extension with washers through
hole in cover and engage the end of reset
shaft.
11. Position reset knob with arrow pointing up,
approximately vertical, on spline of shaft
extension and secure to printer with the 2¼
inch flat-head screw.
12. Check operation of assembly for input
torque and printing of ticket.
13. Seal units with wire through holes in corner
bolts.
Figure 6. Assembling Printer to Meter Register
A
PRINTER
GEAR
B
IDLER
GEAR
TIMING
MARKS
C
REGISTER
GEAR
TIMING MARK
TRAY
(OUT POSITION)

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7
SECTION 4. CLEANING AND LUBRICATING
A. GENERAL
Although the printer is adjusted and lubricated
when manufactured, it does require periodic
cleaning and lubrication to give maximum
service.
Judgement of the intervals at which the printer
requires such service must necessarily be left
to individual users due to varying conditions of
service. Under normal conditions, this will be
no more than twice a year.
B. CLEANING.
1. Remove cover and detach printer from
meter register per Section 3.
2. Flush printing wheels, reset gears, and ail
drive gears with cleaning solvent. Blow out
surplus solvent with compressed air and
lubricate unit.
3. If printing wheels are extremely dirty, a small
brush may be used to scrub the figures.
CAUTION: DO NOT USE A WIRE BRUSH.
C. RECOMMENDED LUBRICATION.
Note: Chemlube and Vischem products are
manufactured by Ultrachem Inc.
Oil: Chemlube 201 or equivalent with a
temperature range of -650 to +275°F (-540 to +
135°C).
Grease: Vischem 352 or equivalent with a
temperature range of -650 to +3aO°F ( -540 to
+ 149°C).
Note: All lubricants used in the printer must be
of a type which remains fluid over the full
temperature range to which the printer will be
subjected. Also, they should not oxidize or dry
out leaving a gummy or perceptible residue.
If the Chemlube oil lubricant is not available, a
substitute with equivalent properties may be
used. To assist field people in obtaining
suitable lubricants for the printers, the following
list showing equivalent lubricants has been
prepared:
OIL GREASE
AEROSHELL FLUID N°. 3 AEROSHELL 14
REGENT SPINTEX OIL 60 ESSO BEACON 325
GARGOYLE ARCTIC OIL LIGHT
CASTROL HYSPIN 40
Figure 7. Lubrication Points - Zero Start Printer

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Figure 8. Lubrication Points -Zero Start Printer
D. LUBRICATION POINTS
(Figures 7 to 10).
1. Apply recommended or equivalent oil to
bearing surfaces of aIl shafts, studs, and
bosses on which parts move or rotate.
2. Apply recommended or equivalent grease to
bearing and mating surfaces of aIl bevel gears,
drive gears, reset gears, wheel ratchets, ticket
tray, shafts, studs, and bosses according to
Figures 7 to 10.
Figure 9. Lubrication Points - Accumulative Printer

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Figure 10. Lubrication Points - Accumulative Printer
SECTION 5. TROUBLESHOOTING
A. GENERAL CHECKS.
(Figures 11 through 15).
If the reason for the trouble is unknown, it is
necessary to examine the printer to locate and
replace malfunctioning parts.
1. Observe function of the no-back pawl by
turning the knob in a counterclockwise
direction. The no-back pawl should limit the
rotation to 20 degrees.
2. Turn the knob in a clockwise direction. The
one-turn stop pawl should stop the knob after
one complete turn.
3. Turn knob until tray is in rear position and
seal pin is up.
4. While turning the knob, observe the
following du ring the "Print ln" cycle:
a. Tray moves forward to "Print ln" position and
seal pin pierces ticket (wheels reset to zero on
Zero Start model only).
b. Print action occurs before stop.
c. Simulate delivery by turning drive gear.
While delivery is being made, sales number
wheel advances one digit.
5. Observe the following du ring the "Print Out"
cycle:
a. Tray moves to rear of printer.
b. "Print Out" occurs showing the quantity
delivered.
c. SeaI pin releases ticket before stop is
reached.

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6. Check print wheel end play for 0.020 to
0.025 inches.
7. Turn the printer so the printing arm faces
you. Check the springs to see that they are
properly anchored.
8. Check roller on the printing arm for proper
alignment on cam.
9. Examine stop pawl for proper assembly.
10. Turn the printer so the back faces you. Be
sure the ticket stop screw is secure.
11. Check the tray support rods to be certain
they are free and secured in place by four
clips.
12. Turn the printer so the knob faces you. Be
sure the springs are properly anchored (omit
for Accumulative Printer).
13. Examine the E-ring retainers and pins to
be certain that they are properly seated and
tight.
14. Examine the three reset gears for damage
or wear. Replace as required.
Figure 11. Parts Identification
Printing Arm
Cushion
Rebound
Plate
Printing Arm
Groove Pin
Reset
Gear
Identifier
Wheels
Printing
Wheel End
Play
Sales
Number
Wheels
Quantity
Wheels
Seal
Pin
No-Back
(One-Turn)
Pawl

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Figure 12. Parts Identification Figure 13. Parts Identification
Figure 14. Ticket Tray Actuating Pin Figure 15. Sales Advance Mechanism
Reset
Gear
Printing
Arm
Ticket Tray
Sup
port Rod
Piercing
Arm and
Spring
Ticket Tray
Support Rod
Printing
Arm Spring
Seal Pin
Actuating
Arm
Print wheel
Aligning
Gear Group
Tray Actuating Cam
and Reset Gear
Group
Ticket
Tray
Ticket
Stop
Screw
Wheel
Aligning
Spring
Transfer Pinion
Shaft
Sales Advance
Detent Spring

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B. TROUBLESHOOTING.
Tables 1 and 2 are used to assist in locating
problems and making minor repairs and
corrections in the field. ln some problems,
similar defects can be produced by several
causes of entirely different nature. Cause of
the trouble must be determined and the
correction made.
C. TICKET POSITION ADJUSTMENT
When print is out of position on the ticket, the
tray stop and guides must be adjusted.
1. To adjust the depth of the ticket, loosen the
ticket stop set screw on the rear of the ticket
tray (see Figure 16). Move the stop forward or
rearward, as required, then tighten the set
screw.
2. To adjust the lateral position of the ticket,
remove the two ticket shield screws and shield.
Move the guides in notches to position the
ticket properly, then replace shield and screws.
16. Ticket Position Guides and Stop Screws
Table 1. Troubleshooting For Zero Start Meter Printer
TROUBLE
POSSIBLE CAUSE CORRECTION
Printing knob turns hard. Burrs on reset gears or teeth are
damaged (Figure 13).
Check reset gear group. Replace
defective gears
Printing knob binds. Bent ticket tray actuating pin (Figure
14).
Straighten or replace the tray.
Printing knob fails to stop after
making one complete turn.
One-turn stop pawl may be bent.
Spring may be missing (Figure 12).
Straighten pawl or replace spring.
Printing knob binds at one area of
reset cycle.
Printing arm cam groove pin not
seated properly (Figure 11).
Seat the groove pin properly.
Reset shaft jams. Reset gears may be out of time. Check reset gears and time as
required. See Section 6.
Wheels fail to reset to zero. Spring missing from wheel pawl or
broken pawl.
Replace defective wheel.
See Section 6.
Input shaft binds when turned
by hand.
Bent transfer pinion shaft
(Figure 15).
Replace transfer pinion shaft.
Pin shears on meter or drive
coupling.
Groove pin not seated flush on drive
pinion. Bits of ticket in the gearing.
Seat the groove pin flush with the
pinion. Clean out ticket bits from
gears.
Weak or unclear print image. Bits of torn tickets are interfering
with wheel figures.
Clean dirt out of wheels and figures.
See Section 4.
Print on ticket not legible. 1. Worn printing arm cushion
(Figure 11).
2. Weak printing arm spring
(Figure 12).
3. Bent rebound plate that does not
give proper spring.
4. Weak rebound plate spring.
5. Old tickets; carbon hardened.
1. Replace printing arm cushion.
2. Replace printing arm spring.
3. Replace rebound plate.
4. Replace rebound plate spring.
5. Replace with fresh supply of
tickets.
Prints zeros after delivery or Out of time. Retime the unit. for each imprint.
See Section 6.
Double stamping or ghosting. Weak rebound plate spring. Replace rebound plate spring.
Print out of position. Mispositioned ticket. Adjust ticket tray guides and stop.
See Paragraph C.
Guides
Ticket Shield
Screws
Ticket
Shield
Ticket Stop
Set Screw

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D. SALES NUMBER ADVANCING
MECHANISM INSPECTION.
1. Sales number advancing mechanism, Figure
17, is tripped when printing occurs. The
movement of the sale advance wheel starts
immediately with rotation of the input shaft and
completes transfer within 1/4 of a revolution. If
the sales number on the right-hand wheel does
not align properly with the other wheel, it must
be adjusted.
2. To align the wheel, position the tail of the
clutch spring in different slots of the transfer
disc until properly adjusted.
Figure 17. Adjusting Sales Number Advancing
Mechanism
Table 2. Troubleshooting For Accumulative Meter Printer
TROUBLE
POSSIBLE CAUSE CORRECTION
Printing knob turns bard. Burrs on reset gears or teeth are
damaged (Figure 13). Check reset gear group. Replace defective gears.
Printing knob binds. Bent ticket tray actuating pin (Figure
14). Straighten or replace the tray.
Printing knob fails to stop alter
making one complete turn. One-turn stop pawl may be bent. Spring may be missing (Figure 12). Straighten pawl or replace spring.
Printing knob binds at one area of
reset cycle. Printing arm cam groove pin not seated properly (Figure 11). Seat the groove pin properly.
Reset shaft jams. Reset gears may be out of time. Check reset gears and time as
required. See Section 6.
Right-hand numbers not aligned
with middle numbers Right-hand wheel inching mechanism not adjusted properly
(Figure 18).
Adjust inching mechanism.
See Paragraph E.
Input shaft binds when turned
by band. Bent transfer pinion shaft (Figure 15). Replace transfer pinion shaft.
Pin shears on meter or drive
coupling. Groove pin not seated flush on drive pinion. Bits of ticket in the gearing. Seat the groove pin flush with the pinion. Clean out ticket bits from
gears.
Weak or unclear print image. Bits of torn tickets are interfering
with wheel figures. Clean dirt out of wheels and figures. See Section 4.
Print on ticket not legible. 1. Worn printing arm cushion
(Figure 11).
2. Weak printing arm spring
(Figure 12).
3. Bent rebound plate that does not
give proper spring.
4. Weak rebound plate spring.
5. Old tickets; carbon hardened
1. Replace printing arm cushion.
2. Replace printing arm spring.
3. Replace rebound plate.
4. Replace rebound plate spring.
5. Replace with fresh supply of
tickets.
Double stamping or ghosting. Weak rebound plate spring. Replace rebound plate spring.
Print out of position. Mispositioned ticket. Adjust ticket tray guides and stop.
See Paragraph C.
Clutch Spring Advancing Mechanism
Transfer Disc

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E. RIGHT-HAND WHEEL INCHING
MECHANISM ADJUSTMENT.
1. Adjustment of the inching of the printer's
right-hand wheel is accomplished by turning
the adjusting set screw, Figure 18. Turning
screw clockwise, the inching occurs at a higher
number and counterclockwise at lower inching
numbers.
2. With reference to the printer only, inching
should take place between 0.3 and O.4 above
any previous number.
SECTION 6. REPAIR AND REPLACEMENT
A. TICKET TRAY REMOVAL
(Figure 19).
1. Turn knob to print position (print hammer
down) and remove printing arm spring.
2. Turn knob to stop position (seal lever up).
3. Flip printing arm to rear and remove three
groove pins from printing arm shaft.
4. Pull out printing shaft from left side.
5. Remove pin from printing arm cam and reset
drive gear.
6. Remove E-ring from center knob shaft. Pull
shaft out from right side until flush with frame.
Leave gears engaged.
7. Remove ail tray rod clips and tray support
rods.
8. Lift tray up while tilting left side up.
Figure 18. Right-hand Wheel Inching Mechanism
Adjustment Screw
Figure 19. Ticket Tray Parts Identification
Inching Mechanism
Adjustment Screw
No-Back
Pawl
Printing
Arm
Printing
Shaft
Printing Arm
Cam Pin
Tray
Rod
E-Ring Spacer
Rebound
Plate
Center
Knob
Shaft
Seal Pin
Actuating
Arm

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B. WHEEL REMOVAL.
1. Remove ticket tray (See Paragraph A).
2. Remove retaining ring and washer from
wheel shaft (left side).
3. Remove wheel aligning spring from wheel
shaft (right side) (See Figure 3).
4. Pull wheel shaft out from right side.
Note: The shaft must be pulled out slowly so
wheels, bushing and washers may be removed
individually without damage to the printing
wheels.
C. WHEEL INSTALLATION.
For Zero Start Printers
1. Start wheel shaft through frame (right side)
and install two washers inside next to frame.
Note: When starting shaft through frame, keep
spline facing out to front.
2. Place the right wheel and ratchet assembly
on the shaft.
Note: Wheel should be installed with zero in
up position. This can be checked by moving
stamping pad down over wheel to see that
figure is centered in pad.
3. Move transfer pin ion over to right and mesh
with right-hand wheel.
4. Move shaft to left and install next wheel on
shaft, then place next transfer pinion into
position.
5. Continue to place wheels and transfer
pinions on the shaft until ail quantity wheels
are in place.
Note: Make certain that teeth of transfer
pinions line up; that is, aIl short teeth must line
up and all long teeth must line up.
6. After quantity wheels are in place, place
washers and short spacers on shaft. The sale
number wheels are then added, engaging their
drive pin ions. Add identifier wheels.
7. Install long spacer and check end play:
0.020 to 0.025 inches.
8. Place washer on wheel shaft (outside of
frame) and install retaining E-ring.
For AccumuIative Printers
9. Start wheel shaft through frame (right side)
and install one washer inside next to frame.
10. Place the ratchet assembly, drive coupling
and right wheel on the shaft.
Note: Wheel should be installed with zero in up
position. This can be checked by moving
stamping pad down over wheel to see that figure
is centered in pad.
11. Move transfer pinion over to right and mesh
with right-hand wheel.
12. Move shaft to left and install next wheel on
shaft, then place next transfer pinion into
position.
13. Continue to place wheels and transfer
pinions on the shaft until all quantity wheels are
in place.
Note: Make certain that teeth of transfer pinions
line up; that is, all short teeth must line up and all
long teeth must line up.
14. After quantity wheels are in place, place
washers and short spacers on shaft. The sales
number wheels are then added, engaging their
drive pinions. Add identifier wheels.
15. Install long spacer and check end play:
0.020 to 0.025 inches.
16. Place washer on wheel shaft (outside of
frame) and install retaining E-ring.
D. TICKETTRAYINSTALLATION
(Figure 19).
1. Place tray inside, frame tilting right side down
to allow tray stud to pass through opening in
frame (right side). Be sure that tray stud enters
internal groove of actuating cam.
2. Install tray support rods. Double groove must
be at right in front position and at left in rear
position.
3. Push center knob shaft in, keeping two
washers between retaining ring groove and
frame. Check timing of gears (see Paragraph E).

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4. Install E-ring and place two washers on
shaft outside the frame, small diameter washer
next to frame.
5. Place and pin printing cam on shaft, keeping
cam cliff in upper rear position with head of
printing knob stud up. Assemble and pin reset
drive gear, timing mark down.
6. Place no-back pawl and two washers on
printing shaft and start shaft through frame (left
side), placing spacer, platen, rebound plate,
and spacer between frames.
7. Start shaft through hole in right side.
Assemble piercing arm and spring to ticket
tray. Assemble seal pin actuating arm, which
should still be in place, over piercing arm and
onto printing shaft.
8. Pin rebound plate and spacer to printing
shaft.
9. Adjust the position of the print on the ticket.
See Ticket Position Adjustment, Section 5.
E. RESET GEARS REPLACEMENT AND
TIMING OF PRINTER
(See Figure 3 for parts identification.)
1. Remove E-ring and washer and spring from
reset shaft gear.
2. Remove E-ring and washer from reset gear.
3. Remove roll pin from reset shaft gear.
4. Remove reset gear.
5. Remove center knob shaft per Section 6,
Paragraph A, steps 5 and 6, and pull shaft
from frame.
6. Remove reset drive gear.
7. Assemble new reset drive gear onto shaft
and start shaft through hole in right side.
Assemble piercing arm and spring to ticket
tray. Assemble seal pin actuating arm, which
should still be in place, over piercing arm and
onto printing shaft.
Note: Timing mark on gear must be down in
relation to the head of the printing knob stud.
8. Install center knob shaft per Section 6,
Paragraph D, steps 3, 4 and 5.
9. Hold tray in rear position and install reset
gear on stud.
Note: Timing mark on small reset drive gear
must mesh between the two timing marks on
the large reset gear.
10. To check internal cam engagement with
tray stud, rotate reset gear two revolutions,
noting tray movement.
11. Install washer and E-ring on reset gear
stud.
12. With timing marks aligned, install reset
shaft gear on shaft and secure with roll pin.
Note: Roll pin must be flush with gear teeth.
13. Install wheel aligning spring, washer and
E-ring.

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17
SECTION 7. INSTALLATION INSTRUCTIONS
FOR KITS 312020-357, -423, -675, AND -893
A. INTRODUCTION.
Each kit contains aIl parts necessary for
installation of a Series 7888 Ticket Printer on a
Series 7887 Meter Register.
B. PARTS LIST.
Check the kit contents against the parts list to
ensure that ail parts are included
REFERENCE DESIGNATION Q
44602-005 Seal 1
11853-285 Seal wire 1
74800-181 Washer, knob (steel) 1
74800-125 Washer knob ( rubber) 1
324757-001 Knob, Printer Reset 1
502300-108 Screw 1
502300-109 Screw (for –893 only) 1
503641-005 Screw 4
510003-006 Lockwasher 4
325894-001 Plug, Reset Shaft Security 1
324718-001 Cover, Reset Knob hole 1
502721-001 Screw 3
510002-001 Lockwasher 3
76124-005 Gasket, Reset Knob hole 1
403071-420 Gear, Large Idler 1
511800-106 Retaining Ring 1
885008-789 Washer 4
885005-791 Washer 4
885005-937 Washer, Spring 1
251322 Manual, Instruction 1
328741-001 Shaft Extension (right side) 1
328741-002
Shaft Ext. (left side) (for 893 only)
1
C. INSTALLATION INSTRUCTIONS.
1. Remove the four corner bolts with
Iockwashers from the bottom of the meter
register. Remove the cover.
2. Unscrew the meter register reset knob.
3. Remove the meter register reset knob flange
mounting screws and flange.
4. Remove the three hex screws that secure
the meter register frame to the bottom of the
case.
5. Remove the meter register frame from the
case.
6. Install the reset knob hole cover and gasket
with three 10-24 x 3/8 inch roundhead screws
and Iockwashers.
7. Manually reset the meter register character
wheels to zero and set the unit aside.
8. TemporariIy set the ticket printer knob and
shaft extention on the printer center knob shaft.
Turn the knob until the ticket tray is in the
outward position and the internal stop prevents
the knob from being turned further. Remove
the knob and shaft extension.
Note: When installing ticket printer on meter
register, ensure that meter register gear is
positioned with timing mark (0) pointing straight
up(Figure 6).
9. install the ticket printer on the meter register
with four 1/4 inch Iockwashers and four 1/4-28
x ¾ inch hex socket head cap screws. Loosen
the printer bevel gear set screw and adjust for
proper backlash between the printer bevel gear
and the meter register drive gear as necessary
(Figure 20).
Figure 20. Ticket Printer / Meter Register
Backlash Adjustment.
10. a. Install a 0.005 inch washer on the meter
register idler gear shaft.
b. Install the large idler gear on the shaft
with the ribs facing in. Ensure that the id
1er gear timing mark is aligned with the
ticket printer timing mark (Figure 6).
c. Install a 0.005 inch washer on the shaft.
d. Install the spring washer on the shaft.
e. Install the retaining ring and 0.005 or
0.010 inch washers as necessary to
ensure that there is 0.020 inch ± 0.005
inch between the idler gear and the
retaining ring.

Edition du 25/02/09 /18 U508219-e Revision : 218
11. Install the plastic security cap on the end
of the meter register reset idler gear shaft.
12. Install the meter register /ticket printer
assembly in the case and secure with the
three hex screws removed earlier.
13. Install the ticket printer cover with the four
corner bolts removed earlier.
14. Install the large steel washer, then the
rubber washer on the slotted end of the shaft
extension.
15. Insert shaft extension with washers thru
hole in cover and engage the end of knob
shaft.
16. Position reset knob with arrow pointing up,
approximately vertical, on spline of shaft
extension and secure to printer with the 2¼
inch flat-head screw for right- hand reset or
use the 1¾ inch flat-head screw for left-hand
reset.
D. OPERATIONAL CHECK.
Perform the following to ensure that the meter
register/ticket printer assembly is ready for
service.
1. Lift the ticket slot cover and insert a ticket as
far as it will go. If the ticket will not enter the
tray, turn the ticket printer knob one complete
revolution until the internal stop is reached.
This lifts the sealing pin and permits insertion
of the ticket.
2. Turn the ticket printer knob one complete
turn (clockwise for right-hand reset or counter
clockwise for left-hand reset) until the internal
stop is reached, leaving the knob arrow
pointing up.
3. Simulate a delivery by manually turning the
meter register drive shaft clockwise. Make sure
that the character wheels advance smoothly
without binding.
4. After completing the simulated delivery, turn
the ticket printer knob one complete revolution
until the internal stop is reached.
5. Withdraw the ticket and check for the
following:
a. Your Sale No. must be one digit higher
than Previous Sale No.
b. Gallon Reading -Finish minus Gallon
Reading - must equal the simulated
delivery shown on the meter register.