Veeder-Root SERIES 7886 Manual

T^ VEEDER-ROOT
INSTALLATION, OPERATION
AND SERVICE INSTRUCTIONS
SERIES 7886
HIGH-CAPACITY &
SERIES 7887
METER REGISTERS
Manual No. 251325 (REV. B)
Technical Manual
8-014
Issued: 12/95
Supersedes : 5/93
VEEDER-ROOT
Petroleum Products

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
TABLE OF CONTENTS
SECTION 1. INTRODUCTION
A. General 1
SECTION 2. SERIES 7887 DESCRIPTION
A. General 1
B. Specifications 2
SECTION 3. SERIES 7886 DESCRIPTION
A. General 3
B. Specifications 3
SECTION 4. PERIODIC INSPECTION
A. General 5
B. Disassembly Prior to Cleaning 5
C. Cleaning 5
D. Inspection 5
E. Lubrication 5
F. Troubleshooting 7
SECTION 5. DISASSEMBLY AND ASSEMBLY
A. General 8
B. Removal of Major Groups 8
C. Individual Parts Replacement 10
D. Installation of Major Groups 10
E. Final Checks and Adjustments 15
F. Operational Check 16
SECTION 6. DAMAGE CLAIMS AND WARRANTY
A. Damage Claims 16
B. Return Shipping 16
C. Warranty and Conditions 16

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
SECTION 1. INTRODUCTION
A. GENERAL. These instructions are for servicing the
Series 7886 High-Capacity and Series 7887 Meter Registers
designed and manufactured by the Veeder-Root Company,
6th Avenue at Burns Crossing. P.O. Box 1673, Altoona, PA
16603. Phone: [phone].
When a vertical bar | appears adjacent to text or illus
trations, information has been added or changed at the last
issue date.
Note: Consult Veeder-Root on any unusual application,
installation or possible modification of this basic
design.
Every Meter Register is thoroughly tested at the Veeder-Root
factory and by the meter manufacturer 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.
Note: See Section 6 for complete Damage Claims and
Warranty.
IMPORTANT!
The instructions, photographs and drawings in Sec
tions 4 and 5 are based on the Series 7887 Meter
Register. With the exception of an additional count
ing wheel, the Series 7886 High-Capacity Meter
Register is physically similar and the same proce
dures should be followed.
Figure 1. External View of Series 7887 Meter Register.
SECTION 2. SERIES 7887 DESCRIPTION
A. GENERAL.
1. Physical. The Series 7887 Meter Register, Figure 1, displays
a running account, final total and accumulated total of
the quantity of liquid product delivery. Contained in a4"x
10" diecast enclosure, individual delivery data is displayed
on five 3/4" high figures while totalizer information is
recorded on eight 1 /8" high figures. Reset of the Meter
Register is accomplished through a reset knob on the
right-hand side of the unit.
2. Operational. The Meter Register is operated by a drive
shaft connected to a group of gears on the gear plate
which converts the drive revolutions to the appropriate
ratio. The output bevel gear of the group drives a bevel
gear, Figure 5, which is connected to the drive shaft and
clutch assembly. In rotating, this shaft drives a gear on the
clutch assembly which in turn drives a gear on the right
(unit) wheel assembly. Revolutions are then accumulated
on the wheels. In addition, this rotating shaft drives the
bracket group connected to the accumulative totalizer
shaft, thus both displays are driven from the same source,
assuring accurate recording of information. During the
reset operation, the clutch is disconnected from the drive
shaft, a shutter moves into place covering the display
wheels and reset fingers engage heart-shaped cams on the
individual wheels to move them back to a zero position. In
addition, a set of anti-topping fingers engages the wheels
to prevent jamming. At the completion of reset, the display
wheels will read all zeros, and the shutter will rise to the
normal operating position. The clutch will engage the
drive shaft to transfer the information from the next
delivery. The totalizer wheels will be unaffected by this
reset operation, thus displaying an accurate measure of
the accumulated totals of many deliveries.
1

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
B. SPECIFICATIONS.
Specifications listed are standard unless otherwise noted.
Optional features are available at additional cost.
Speed: 250 rpm.
Torque: Average running torque at room temperature with
1:1 input: 4 oz-in. During display wheel transfer from all 9's
to all 0's, the instantaneous peak torque may reach 40
oz-in.
Operating Temperature Range: 40° to +71°C (-40° to
+ 160°F).
Number of Figures: Meter Register: 5. Accumulative
Totalizer: 8
Size of Figures: Meter Register: 0.750" high x 0.400" wide
(19.05 x 10.16 mm). Totalizer: 0.125" high x 0.078" wide
(3.175 x 1.98 mm).
Color of Figures: White on black, except right-hand totalizer
wheel which is black on white when recording tenths of
units, and white on black when recording whole units.
Style of Figures: Veeder-Root/Cornell for optimum read
ability.
Character Configuration: 0 to 9 (options available).
Reset: Single handle on register. Designed for one-handed
operation.
Mounting: Eight 1 /4 x 28 tapped holes with steel inserts on a
6.625" (168.28 mm) diameter. Special adaptors are
available for nearly all meters.
Construction: Cover: cast aluminum. Case and sub frame:
cast Zamak. Wheels, pinions, and clutch: acetal resin.
Gearing: 1:1 is standard. 1:1 through 42:1 are available.
Lubrication: Periodic.
OPTIONS
Nonreset Pulser: Meter Register with Series 1871 or 7671
Pulse Transmitter.
k
\
188.925mm
7.438"
Dia.
0.250-28 UNF 2B
8 holes equally spaced
Studs must not enter tapped holes
more than 7.938mm (0.312").
168.275mm
6.625"
Dia.
Dimension Identification
Mounting Dimensions
214.934mm
-8.462"-
130.429mm
5. 35"
15.88mm + 0.508
0.625" ±0.020
127.863mm
-" 5.034 H
173.126mm
— 6.816
290.525mm
—11.438" —
56.769mm
2.235"
54.965mm
2.164"
139.7mm
5.5OO"-*
3.175mm
0.125"
Figure 2. Mounting Dimensions — Series 7887 Meter Register.
2

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
Figure 3. External View of Series 7886 High-Capacity Meter Register.
SECTION 3. SERIES 7886 DESCRIPTION
A. GENERAL.
1. Physical. The Series 7886 High-Capacity Meter Register,
Figure 3, displays a running account, final total and
accumulated total of the quantity of liquid product
delivery. Contained in a 4" x 10" diecast enclosure,
individual delivery data is displayed on six 5/8" high
figures while totalizer information is recorded on eight
1/8" high figures. Reset of the Meter Register is accom
plished through a reset knob on the right-hand side of the
unit.
2. Operational. The Meter Register is operated by a drive
shaft connected to a group of gears on the gear plate
which converts the drive revolutions to the appropriate
ratio. The output bevel gear of the group drives a bevel
gear, Figure 5, which is connected to the drive shaft and
clutch assembly. In rotating, this shaft drives agear on the
clutch assembly which in turn drives a gear on the right
(unit) wheel assembly. Revolutions are then accumulated
on the wheels. In addition, this rotating shaft also drives
the bracket group connected to the accumulative totalizer
shaft, thus both displays are driven from the same source,
assuring accurate recording of information. During the
reset operation, the clutch is disconnected from the drive
shaft, a shutter moves into place covering the display
wheels and reset fingers engage heart-shaped cams on the
individual wheels to move them back to a zero position. In
addition, a set of anti-topping fingers engages the wheels
to prevent jamming. At the completion of reset, the display
wheels will read all zeros, and the shutter will rise to the
normal operating position. The clutch will engage the
drive shaft to transfer the information from the next
delivery. The totalizer wheels will be unaffected by this
reset operation, thus displaying an accurate measure of
the accumulated totals of many deliveries.
B. SPECIFICATIONS.
Specifications listed are standard unless otherwise noted.
Optional features are available at additional cost.
Speed: 250 rpm.
Torque: Average running torque at room temperature with
1:1 input: 4 oz-in. During display wheel transfer from all 9's
to all 0's, the instantaneous peak torque may reach 40
oz-in.
Operating Temperature Range: -40° to +71°C (-40° to
+ 160°F).
Number of Figures: Meter Register: 6. Accumulative
Totalizer: 8
Size of Figures: Meter Register: 0.625" high x 0.300" wide
(15.87 x 7.62 mm). Totalizer: 0.125" high x 0.078" wide
(3.175x1.98 mm).
Color of Figures: White on black, except right-hand totalizer
wheel which is black on white when recording tenths of
units, and white on black when recording whole units.
Style of Figures: Veeder-Root/Cornell for optimum read
ability.
Character Configuration: 0 to 9 (options available).
Reset: Single handle on register. Designed for one-handed
operation.
Mounting: Eight 1/4 x 28 tapped holes with steel inserts on a
6.625" (168.28 mm) diameter. Special adaptors are
available for nearly all meters.
Construction: Cover: cast aluminum. Case and sub frame:
cast Zamak. Wheels, pinions, and clutch: acetal resin.
Gearing: 1:1 is standard. 1:1 through 42:1 are available.
Lubrication: Periodic.
OPTIONS
Nonreset Pulser: Meter Register with Series 1871 or 7671
Pulse Transmitter.

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
188.925mm
7.438"
Dia.
0.250-28 UNF 2B
8 holes equally spaced
Studs must not enter tapped holes
more than 7.938mm (0.312").
168.275mm
6.625"
Dia.
Mounting Dimensions
130.429mm
15.88mm ±0.508
0.625" +0.020
127.863mm
5.034 H
173.126mm
— 6.816
290.525mm
—11.438" —
56.769mm
2.235"
Dimension Identification
214.934mm
-8.462"-
54.965mm
2.164"
139.7mm
5.500"-*
3.175mm
0.125"
Figure 4. Mounting Dimensions — Series 7886 High-Capacity Meter Register.
Bracket-
Croup
Anli-Toppin.
Finger
Unit
Wheel
Shut tor
Detent Spring
lutch Spring
Reset Spring
Figure 5. Internal View of Series 7887 Meter Register (Series 7886 High-Capacity Meter Register is similar).
4

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
SECTION 4. PERIODIC INSPECTION
(For Series 7886 High-Capacity
and Series 7887 Meter Registers)
A. GENERAL. The Meter Register is fully lubricated and
properly adjusted at manufacture. However, periodic clean
ing and lubrication are required.
Judgement of the intervals at which the meter register
requires such service must necessarily be left to the individual
user due to varying conditions of service. Under normal
conditions, this will be at least once a year, or after each 2-1/2
million units of measure delivered, whichever comes first.
B. DISASSEMBLY PRIOR TO CLEANING. Remove the
meter register from its housing as follows:
1. Remove the bolts securing the cover (if present) to the top
of the housing. These bolts are hex head and are located at
the four corners of the bottom of the housing. Remove the
cover.
2. Remove the three button-head bolts securing the meter
register to the housing. Remove the meter register.
3. Remove the screws securing the gear plate to the bottom
of the housing. Remove the gear plate.
C. CLEANING.
CAUTION: DO NOT USE A WIRE BRUSH.
1. Wipe bezel crystal with a clean lint-free rag.
2. If the wheel faces are dirty, gently clean with a clean
lint-free rag dipped in mild soapy water.
3. Clean the gears on the base plate by flushing or with a
brush dipped in solvent. Blow dry with compressed air.
4. Clean housing by dipping, flushing or brushing with
solvent. Blow dry with compressed air.
D. INSPECTION. A periodic inspection of the entire meter
register, housing and gear plate is required to make sure that
they function properly, parts are in place, and no binding or
excessive side-to-side motion of shafts occurs. A checklist on
such procedures follows:
1. Check the following shafts for perceptible side-to-side
motion.
Note: Remove the meter register from the housing before
checking shaft freedom.
a. Wheel Shaft
b. Anti-Topping Finger Group Shaft
c. Reset Finger Group Shaft
d. Clutch Group Shaft
e. Pinion Shaft
2. Temporarily install the base plate and meter register in
the housing and check for proper engagement and
freedom of movement of:
a. All gears on gear plate.
b. Output bevel gear on gear plate with the bevel drive
gear on drive shaft.
c. 57 tooth gear on clutch assembly with gear on right
wheel assembly.
d. Gear drive shaft with gear train that operates the
totalizer, and gear connecting the drive train to the
totalizer.
3. Rotate drive shaft by hand to see that unit operates freely
and then reset, checking for proper reset and shutter
action. Adjust pointer after reset as required.
4. Check all screws, retaining rings and groove pins to see
that they are tight and seated properly.
E. LUBRICATION.
I. Recommended Lubricants
Note: Chemlube and VTschem products are manufactured
by Ultrachem Inc.,
1400 N. Walnut St., P.O. Box 2053
Wilmington, DE 19899
Oil: Chemlube 201 or equivalent with a temperature range of
-65°F to +275°F (-54°C to +135°C).
Grease: Vischem 352 or equivalent with a temperature range
of -65°F to +300°F (-54°C to +149°C).
Note: All lubricants used in the register must be of a type
which remains fluid over the full temperature range
to which the register will be subjected. Also, they
should not oxidize or dry out leaving a gummy or
perceptible residue.
If the Chemlube 201 oil lubricant is not available, a substitute
with equivalent properties may be used. To assist field
personnel in obtaining suitable lubricants for the meter
register and ticket printers, the following list showing equi
valent lubricants has been prepared:
OIL
AEROSHELL FLUID
REGENT SPINTEX OIL
GARGOYLE ARCTIC OIL
CASTROL HYSPIN
ANDEROL
AEROSHELL
ESSO BEACON
ANDEROL
2. Points to Lubricate
GREASE
NO. 3
60
LIGHT
40
401D
14
325
795
Oil: All points indicated as "Oil" on Figure 6 should be
lubricated with oil as described above. This includes all
shafts, studs, and bosses on which a moving part bears.
Grease: Grease should be applied to all points indicated as
"Grease" on Figure 6. This includes gears and the no-back
ratchet and pinion.
Note: The oil and grease should be applied with a small
brush to make certain that all areas will be properly
lubricated. In this manner, the amount of lubricant
being used will be more easily controlled.

iM Installation, Operation and Service Manual
JJ Series 7886 High-Capacity & 7887 Meter Registers
s/s/s////////////////// //////. 7 '///
SECTION Y-Y
WITH BEZEL REMOVED
W
Grease
Grease Grease
Gre?se Y^ /Oil
Oil Oil
CLUTCH SHAFT VIEW
Oil
Oil Oil
ANTI-TOPPING FINGER SHAFT VIEW
Grease
Oil
VIEW V-V
PARTIAL VIEW Z-Z
Grease
Oil
Grease
SECTION W-W
Oil'
PINION SHAFT VIEW
Oil
11
Oil ^Grease
Oil
Oil
RESET FINGER SHAFT VIEW
Oil
"Grease
OH
P
Grease
Grease 5 Places "
WHEEL SHAFT VIEW
Figure 6. Lubrication Points.

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
F. TROUBLESHOOTING. Table 1 is used to assist in
locating problems and making repairs and corrections. In
some problems, similar defects can be produced by several
causes of an entirely different nature. Cause of the trouble
must be determined and the correction made.
Table 1. Troubleshooting

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
SECTION 5. DISASSEMBLY AND ASSEMBLY
(For Series 7886 High-Capacity
and Series 7887 Meter Registers)
A. GENERAL. When disassembling the meter register, be
extremely careful not to lose or intermix any of the washers
found on the shafts. By doing so, potential problems with
end-play and backlash adjustments will be greatly lessened.
When removing retaining rings or other parts from shafts, do
not hold the shaft with any tool that might gouge or create
burrs on the shaft.
B. REMOVAL OF MAJOR GROUPS. Instructions for
removal of all shaft groups are provided.
1. If present, remove the retaining ring securing the reset
idler gear to the reset idler gear shaft.
2. Remove retaining rings and washers securing the pinion,
reset, anti-topping and clutch shafts to the right-hand
side plate (Figure 7). Remove screws and lockwasher
securing the totalizer group and rear mounting bar from
right-hand side plate.
3. Remove side plate.
CAUTION: DO NOT LOSE OR INTERMIX WASHERS FROM
EACH SHAFT.
Note: Remove only those shaft groups necessary to gain
access to parts being replaced.
^\
Accumulative
Totalizer Group
Retaining Screw
Pinion
Shaft
Stop Shaft
Anti-Topping
Finger Shaft
Clutch Shaft
Rear Mounting
Bar Retaining
Screw
Reset Shaft
Figure 7. Right-Hand Side Plate.
Figure 8. Left-Hand Side Plate.
8

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers |-
4. Clutch Shaft Group Removal.
a. Remove retaining ring and washers securing the clutch
shaft group to the left-hand side plate. See Figure 8.
b. Move clutch lever group so clutch is free. See Figure 9.
Remove clutch shaft group. See Paragraph C, 1 for
parts replacement.
5. Reset Finger Group Removal.
a. Remove retaining ring and washer securing the reset
group to the left-hand side plate. See Figure 8.
b. Disengage the reset fingers and no-back pawl from the
wheels. See Figure 10. Remove the group. See Paragraph
C, 2 for parts replacement.
6. Stop Shaft Removal.
a. Remove the springs from between the anti-topping
fingers and the stop shaft.
b. Remove the spring from between the detent lever group
and the stop shaft.
c. Remove the stop shaft.
7. Anti-Topping Finger Group Removal.
a. Remove the retaining ring and washers securing the
anti-topping finger group shaft to the left-hand side
plate. See Figure 8.
b. Disengage the anti-topping fingers and the clutch lever
group from the wheels. See Figure 11.
c. Remove the group from the side plate. See Paragraph C,
3 for parts replacement,
8. Totalizer Group Removal.
a. Remove the screws securing the totalizer group to the
left-hand and right-hand side plates. See Figures 7 and
8.
b. Remove the totalizer group.
c. No additional disassembly of the totalizer is possible. If
the totalizer is inoperable, replace the group.
j^
Note: If the inoperable totalizer has a small bevel gear
(approx. 11/32 inch dia.) on the drive shaft, replace
the bracket group on the leftside frame as well as the
totalizer group (see Figure 31 and Paragraph D, 7 and
E, 5). Remove the screw holding the pointer onto the
old totalizer and save for installation on new totalizer.
9. Pinion Removal.
a. Remove retaining ring securing pinion shaft to the left-
hand side plate. See Figure 8.
b. Rotate the detent lever group so it will clear the reset
cam. Remove shaft.
c. Remove pinions, detent lever group washers and re
taining rings from shaft.
10. Wheel Group Removal.
a. Mark relationship of reset gear to wheel group shaft to
assure proper positioning during assembly.
b. Remove pin securing reset gear to the wheel group
shaft.
c. Remove gear, retaining ring and washer. Remove shaft.
See Paragraph C, 4 for parts replacement.
Figure 10. Reset Finger Group Removal.
Figure 9. Clutch Group Removal
Figure 11. Anti-Topping Finger Group Removal.

Installation, Operation and Service Manual
Series 7886 High-Capacily & 7887 Meter Registers
C. INDIVIDUAL PARTS REPLACEMENT
1. Clutch Shaft Parts Replacement. See Figure 12.
a. Totalizer and Drive Bevel Gears.
(1) Drift out pin securing gear to shaft.
(2) Remove gear.
(3) Remove retaining rings and washers that position
drive gear. Do not change the order of the rings
and washers.
(4) Drift out pin holding drive gear and remove gear.
(5) Install new gear, pin, retaining rings and washers.
Use new pin if required.
(6) Install totalizer bevel gear and secure with pin.
CAUTION: CHECK SHAFT FOR STRAIGHTNESS AFTER
PINNING. A BENT SHAFT WILL CAUSE BINDING
DURING DRIVING OF METER REGISTER. CLUTCH
MUST NOT BE DISASSEMBLED OR REPLACED AS AN
INDIVIDUAL GROUP. IF CLUTCH IS BROKEN OR
MALFUNCTIONS, REPLACE COMPLETE SHAFT AND
CLUTCH AS AN ASSEMBLY.
2. Reset Finger Group Parts Replacement. See Figure 13.
Individual reset fingers, reset arm, no-back pawl and pawl
spring may be replaced as required.
a Remove retaining rings and appropriate washer to
reach particular part.
b. Replace defective items with new part. Assemble
remaining parts on shaft. Install retaining rings and
washers. Check end play per Figure 28.
3. Anti-Topping Finger Group Parts Replacement. See Figure
14. Individual anti-topping fingers, reset lever and clutch
lever may be replaced as required.
a. Remove retaining rings, washers and parts as required
to get to part that is to be replaced.
b. Install parts, retaining rings and washers in the se
quence shown in Figure 14. Be sure to install parts so
they are in the proper direction. Check end play per
Figure 28.
4. Wheel Group Parts Replacement. See Figures 15, 16, 17
and 18. The reset cam, individual wheels, locking discs and
eccentrics may be replaced as required.
a. Remove retaining rings, washers and key as required to
remove reset cam, wheels, locking discs and eccentrics.
b. Install parts, retaining rings, washers and key in the
sequence shown in Figure 17. When installing wheels,
be sure the pin on the locking disc engages the groove in
the wheel as shown in Figure 18. Check end play per
Figure 28.
D. INSTALLATION OF MAJOR GROUPS
Prior to installing each shaft, lubricate per Paragraph E in
Section 4. During assembly, do not intermix washers from
one shaft to another.
1. Wheel Group Installation.
a. If not present, install a 0.030 inch thick washer over the
end of the wheel group shaft opposite the cam.
b. Install the shaft into the proper hole in the left-hand
side plate. See Figure 8.
2. Anti-Topping Finger Group Installation. See Figure 19.
a. Hold wheel and side plate assembly upside down.
b. Install anti-topping finger group in proper hole in left-
hand side plate (see Figure 8). Be sure all fingers and
clutch lever are free of wheels and the pin on the reset
lever engages the track on the cam.
•Clutch
Drive Gear
Retaining
Rings
and
Washers
Pin
Bevel
Gear
Figure 12. Clutch Shaft Group.
\
Figure 13. Reset Finger Group.
Figure 14. Anti-Topping Finger Group.
10

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers |?
c. Seat the shaft, install washers and retaining ring to
secure shaft to left-hand side plate.
d. See that all fingers are free to engage wheels.
3. Stop Shaft Installation.
a. Install retaining rings on ends of shaft.
b. Insert stop shaft into proper hole in left-hand side
plate. See Figure 8.
4. Reset Finger Shaft Group Installation.
a. Rotate no-back pawl so that spring puts pawl under
tension. Slip an elastic band over the reset fingers and
pawl to hold pawl in position. See Figure 20.
b. Install shaft into left-hand side plate and secure with
retaining ring and washers. See Figure 8.
c. Engage pin on reset lever group with slot in reset arm.
See Figure 22.
5. Clutch Shaft Group Installation.
a. Install shaft in proper hole in left-hand side plate. Add
washers and secure with retaining ring. See Figure 8.
b.
Make sure that bevel gears that drive the totalizer are
free to turn.
Figure 17. Locking Disc, Eccentric and Washer Removal and
Installation.
Figure 15. Reset Cam Removal.
Figure 18. Unit Wheel Installation.
Retaining Rin
and Washers
Anti-Topping
Finger Group
Figure 16. Unit Wheel Removal. Figure 19. Anti-Topping Finger Group Installation.
11

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
6. Right-Hand Side Plate Installation
a. Hold meter register assembly as shown in Figure 22 and
place a rubber band around the assembly to hold it
together. Be sure the pin in the reset lever group
remains engaged in the slot in the reset arm.
b. Install side plate over wheel shaft first, then engage the
other shafts.
c. Temporarily secure the side plate to the rear mounting
bar with screws.
7. Bracket Group (if required) and Totalizer Installation.
a. If required, install new bracket group to inside of left
side frame and secure with two screws and lock-
washers. See Figure 31.
b. Install pointer with screw (saved from old totalizer)
onto new totalizer group but do not tighten screw
securely. Pointer position must be adjusted after
totalizer group is installed. See Paragraph F, 2.
c. Install the totalizer group so that the bevel gear is in
mesh with the top bevel gear on the bracket group and
secure with retaining screws. For adjustment of bevel
gear drive, see Paragraph E, 5.
8. Spring Installation.
a. See Figure 23 for identification of springs. \,
b. Install the five anti-topping finger springs between the
anti-topping fingers and the stop shaft. See Figure 24.
c. Install the reset spring between the reset lever and the
pinion shaft.
d. Install the detent spring between the detent lever
group and the stop shaft.
e. Install the clutch spring between the clutch lever group
and the pinion shaft.
9. Pinion Shaft Assembly Installation
a. If not previously accomplished, remove all parts from
pinion shaft.
b. Rotate wheel shaft so reset fingers are fully engaged in
the heart-shaped cams on each wheel.
c. Place pinions, with short finger up, in between each
wheel as shown in Figure 25.
d. Install the end of the shaft closest to the two retaining
ring slots into the left-hand side plate and through each
pinion.
Figure 20. Reset Finger Shaft Group Preparation For
Installation.
Figure 22. Preparation For Side Plate Installation.
y _
Figure 21. Reset Lever Group Pin Engagement.
12
Figure 23. Spring Identification.

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
e. Install washers and detent lever group onto shaft and
engage shutter with tab on detent lever.
f. Push shaft through the right-hand side plate and
secure with washer and retaining ring.
g. Secure detent lever group into position with retaining
rings.
h. After assembly, rotate wheel shaft to make sure all
pinions have been positioned properly. If binding
occurs, reposition pinions per step c.
10. Reset Gear Installation.
a. Install reset gear on wheel shaft, aligning orientation
mark made at disassembly.
b. Secure gear to shaft with pin.
11. Reset Idler Gear Installation.
a. If present, install reset idler gear on the reset idler gear
shaft. See Figure 8.
b. Secure with retaining ring.
Note: This gear will be timed when the meter duplicator and
meter register are assembled together.
Figure 24. Anti-Topping Finger Spring Installation.
Figure 26. Installation Of Meter Register Onto
Mounting Fixture.
Figure 25. Pinion Positioning. Figure 27. Securing Mounting Fixture.
13

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
Adjust to give proper engagement
with Drive Gear on Gear Plate
End Play
O.OO5-O.O12 inch
Maintain proper engagement
with Totalizer bevel gear.
CLUTCH SHAFT
Washer Clutch and Anti-topping Shafts
end play for proper actuation of Clutch
End Play
0.007 inch maximum
Adjust Detent Lever for best possible
engagement while maintaining
0.005-0.010 inch end play
to
End Play
0.005-0.012 inch
PINION SHAFT
End play of
0.002-0.007 inch
between retaining rings
Adjust No-back Pawl for best possible
engagement while maintaining
0.005-0.010 inch end play
End Play
0.005-0.012 inch
0.005-0.010 inch end play
between retaining rings.
ANTI-TOPPING FINGER SHAFT
RESET FINGER SHAFT
0.009-0.016 inch end play between
retaining rings of each wheel.
i
[I
t
Adjust for best possible engagement
of Reset Cam while maintaining
0.005-0.010 inch end play.
End Play
0.005-0.012 inch
WHEEL SHAFT
S
Figure 28. End Play Limits.
14

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
#
E. FINAL CHECKS AND ADJUSTMENTS.
1. End Play Check: Check end play (back and forth motion)
of shafts and parts as follows:
a. For proper measurement, the meter register must be
installed in the TD-42383 mounting fixture, Figure 26,
to constrain the frame into the same position that, it is
when installed in the housing.
b. Secure the meter register to the fixture with two 1 ,'4-28
button-head bolts. See Figure 27.
c. Take end play measurements of each shaft. Add or
subtract washers as necessary to obtain correct end
play.
2. Input Drive Bevel Gear Engagement Adjustment.
a. Install the gear plate onto the fixture using the
appropriate hardware.
b. Remove the retaining ring behind the bevel gear and
add or subtract washers as required for proper mesh
between the bevel gear on the gear plate and the drive
bevel gear on the clutch shaft. The shaft end play must
be maintained as specified in Figure 28.
c. Replace the retaining ring after adjustment.
3. Clutch Lever Positioning Adjustment.
a. Rotate the reset gear until the clutch is fully disengaged.
b. Measure the clearances as shown in Figure 29.
c. If the dimensions cannot be obtained, add or remove
washers as required, or replace the clutch and shaft.
d. The amount of face engagement between the spur gear
on the input clutch and the first wheel should be 75% ±
20%.
4. Wheel Brake Adjustment.
a. Rotate reset gear to position cam as shown in Figure 30.
b. Measure clearance between brake and first wheel. If
clearance is not within the dimensions given, adjust
brake by loosening screw and moving brake into
position.
c. Remove the meter register from the fixture by removing
the two button-head screws. Remove the gear plate
from the fixture.
5. Gearing Adjustment for Totalizer. See Figure 31.
Loosen set screw on bottom bevel gear. Mesh the top bevel
gear tightly with the totalizer bevel gear. Press the register
clutch shaft toward the left side frame. Adjust the bottom
bevel gear such that it has 0.012 - 0.015 end play when
meshing with the clutch shaft bevel gear. Tighten set screw
and secure with a sealant (Loctite 222 or equivalent) to
prevent loosening.
6. Apply Anderol L-795 or equivalent grease on teeth of bevel
gears.
7. Backlash Compensating Mechanism Adjustment for
EEC UNITS ONLY.
While unit is running at 100-200 RPM, adjust screw so
that pawl is approximately in the middle of clip as shown
in Figure 32 (on Page 16). Oscillation of pawl is
permissible.
To check for proper operation, use a 1:1 gear plate and
operate register at 100-200 RPM. Stop counting, hold input
shaft of gear plate and reset register. Wheel should reset so
that some part of graduation at zero always aligns with
pointer.
Spur Gear-
*—0.005 inch min.
Lever
0.015 inch min.
Figure 29. Clutch Lever Adjustment.
First Wheel
Detent Cam
Small Dia.
Figure 30. Brake Adjustment.
Figure 31. Inside Left Side Plate of Meter Register.
15

Installation, Operation and Service Manual
Series 7886 High-Capacity & 7887 Meter Registers
Figure 32. Backlash Compensating Mechanism (EEC UNITS)
F. OPERATIONAL CHECK. Before returning the meter
register to normal service, check that it operates properly as
follows:
1. Rotate the input bevel gear and see that the totalizer and
individual delivery wheels are driven and that they record
the same amount. There should be no binding or drag.
2. Rotate the reset gear and see that the shutter drops into
place, the wheels all reset and that there is no binding or
drag. At the completion of reset, the zeros should align
with the pointer.
3. See Troubleshooting, Table 1. Page 5, if there are any
problems.
SECTION 6. DAMAGE CLAIMS
AND WARRANTY
A. DAMAGE CLAIMS
1. Thoroughly examine the enclosure as soon as it is
received. If damaged, write on the face of the freight bill a
complete and detailed description of the damage. Have the
carrier's agent sign the description.
Note: Insist that the carrier's agent verify the inspection
and sign the description.
2. Immediately notify the delivering carrier of damage or
loss. This notification may be given either in person or by
telephone. Written confirmation must be mailed within 48
hours. Railroads and motor carriers are understandably
reluctant to make adjustments for damaged merchandise
unless inspected and reported promptly.
3. Risk of loss of, or damage to merchandise remains with the
Buyer. It is the Buyer's responsibility to file a claim with the
carrier involved.
4. Immediately advise your Veeder-Root representative,
distributor, or the factory so that we may assist you.
B. RETURN SHIPPING. All shipments of Veeder-Root
products must be prepaid. Equipment must be packed in a
strong exterior container and surrounded by shock absorb
ing material. Veeder-Root will accept no liability for damage
caused by improper packing. It is suggested that the original
shipping container be used if it is available. Address sh ipment
to Veeder-Root Co., 6th Avenue at Burns Crossing, P.O. Box
1073, Altoona.PA 16603.
C. WARRANTY AND CONDITIONS
1. WARRANTY. We warrant that our products shall be free
from defects in material and workmanship for a period of one
year from the date of shipment thereof or the product's total
rated life, whichever first occurs. Within the warranty period
we shall repair or replace such products which are returned
to us with shipping charges prepaid and which are deter
mined by us to be defective. This warranty will not apply to
any product which has been subjected to misuse, negligence,
or accident; or misapplied; or used in violation of product
manuals, instructions, or warnings; or modified or repaired
by unauthorized persons; or improperly installed.
2. INSPECTION. You shall inspect the product promptly
after receipt and shall notify us at our Altoona office, in
writing, of any claims, including claims of breach of warranty,
within thirty days after you discover or should have dis
covered the facts upon which the claim is based. Your failure
to give written notice of a claim within the time period shall
be deemed to be a waiver of such claim.
3. LIMITATION OF REMEDY AND WARRANTY. The
provisions of Paragraph 1 are our sole obligation and
exclude all other remedies or warranties, express or
implied, including warranties of MERCHANTABILITY and
FITNESS FOR A PARTICULAR PURPOSE, whether or not
purposes or specifications are described herein. We
further disclaim any responsibility whatsoever to you or to
any other person for injury to person or damage to or loss of
property or value caused by any product which has been
subjected to misuse, negligence, or accident; or mis
applied; or used in violation of product manuals, instruc
tions, or warnings; or modified or repaired by unauthorized
persons; or improperly installed.
4. LIMITATION OF DAMAGES. Under no circumstances
shall we be liable for any incidental, consequential or
special damages, losses or expenses arising from this
contract or its performance or in connection with the use
of, or inability to use, our product for any purpose
whatsoever.
5. LIMITATION OF ACTIONS. No action regardless of
form arising out of this contract may be commenced more
than one year after the cause of action has accrued, except
an action for nonpayment.
6. COLLATERAL PROMISES. There are no represen
tations, warranties, or conditions express or implied, statu
tory or otherwise except those herein contained, and no
agreements or waivers collateral hereto shall be binding on
either party unless in writ ing and signed by you and accepted
by us at our Altoona office.
7. INTERPRETATION. Rights and liabilities arising out of
any contract with us shall be determined under the Uniform
Commercial Code as enacted in Connecticut.
%

1
VEEDER-ROOT "^
Hm Petroleum Products
6th Avenue at Bums Crossing, P.O. Box 1673. Altoona, PA 16603-1673 Phone [phone], Fax [phone]. or Phone [phone], Fax [phone]
BRAZIL: Sau Paulo • CANADA: Mississauga, Ontario • ENGLAND: Richmond Surrey ■ FRANCE: Rungis Cedex • GERMANY: Neuhausen/Filder • SINGAPORE: Singapore
251325 (REV. B) 13355 Replaces 12569