Veeder-Root SERIES 7886 - Individual Parts Replacement; Installation of Major Groups

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.
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