Veeder-Root SERIES 7886 User Manual

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: (814) 695-4476.
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

Veeder-Root SERIES 7886 Specifications

General

Brand	Veeder-Root
Model	SERIES 7886
Category	Measuring Instruments
Language	English