TCS 682-15 User manual

TOTAL CONTROL SYSTEMS
2515 Charleston Place •Fort Wayne, IN 46808
[phone] • [phone] • Fax [phone]
[email protected] •www.tcsmeters.com
“The Standard of Measurement”
682-15 Piston Flow Meter
SERVICE MANUAL

SPECIFICATIONS
Type Reciprocating 3 Piston Positive Displacement
Connections 1-1/2” companion flange
Flow Rate Minimum: 0.2 GPM (0.76 LPM)
Maximum: 40 GPM (151 LPM)
Working Pressure 150 PSI maximum (10.5 Bar)
Working Model 682SP: -20°F to 200°F (-28.9°C to 93.3°C)
Temperature Models 682AF & 682SS: -20°F to 400°F (-28.9°C to 204.4°C)
Units of Measure 1/10th U.S. Gallons STANDARD; Litre’s, Pounds, etc. available upon request.
FLOW METER TYPES
SP -Standard Petroleum For metering refined petroleum products such as Leaded and
Unleaded Gasoline, Fuel Oils, Diesel, Bio-Diesel, Kerosene,
Aviation Gasoline, Vegetable Oils, Lubricating Oils, Ethylene
Glycol (Anti-Freeze), etc.
AF -All Ferrous For metering Pesticides, Nitrogen Solutions, Fertilizer, Solvents,
Paints, Inks, Alcohols, Adhesives, Motor Oils, Molasses, Corn
Syrup, Liquid Sugars, Deicing Fluids, etc.
SS -Stainless Steel For metering all the same liquids as the SP and AF flow meters,
however includes special handling fluids such as Nitric, Phosphorous
and Glacial Acetic Acids, Anti-Icing Fluids, Vinegar, Fruit Juices
and various other chemicals.
MATERIALS OF CONSTRUCTION
Type Housing Internals Packing Seals Piston Cups Body Seals
SP Cast Iron Cast Iron &
316 SS Viton®& Turcon® Glass-filled TFE (Rulon) Durlon® & Teflon®
AF Cast Iron Cast Iron &
316 SS Simriz® & Turcon® Glass-filled TFE (Rulon) Durlon® & Teflon®
SS 316 SS 316 SS Simriz® &
Turcon® Glass-filled TFE (Rulon) Durlon® & Teflon®
Viton is a registered trademark of E.I. DuPont de Nemours & Co.
Simriz is a registered trademark of Freudenberg-NOK
Teflon is a registered trademark of Dupont Dow Elastomers, L.L.C.
Turcon is a registered trademark of Busak+Shamban.
Durlon is a registered trademark of Gasket Resources, Inc.

682 METER OPERATION
The 682 meter is a true Positive Displacement Meter, with the inlet and outlet on the same
horizontal plain (straight in -straight out). Within the meter, three plungers are fitted within
their respective cylindrical measuring chambers. The plungers are joined to a wobble plate,
which has a shaft extending from its upper surface. The wobble plate also has a valve pivot
attached beneath it. The valve pivot drives a sliding valve from piston to piston as product
flows, controlling the sequence of events.
The wobble plate shaft is always held at an inclined position by the center gear post, and the
wobble plate itself is prevented from rotating by four guide pins on the pivot bracket assembly.
As product enters the meter, it initially flows into the upper housing. The sliding valve will now
be in position to open one measuring cylinder. The plunger for that particular cylinder will be at
the upper position. With the pressure below it relieved, and an upper housing full of product, the
pressure on top of that plunger will cause it to move toward the bottom of the cylinder, thus
forcing out the remaining product. As this occurs, another plunger will be forced from the down
position to the upper position. The sliding valve moves via the wobble plate to open the inlet of
this cylinder. As the plunger moves upward, it draws product into the measuring cylinder from
the bottom. Once this plunger reaches the upper position, and the cycle will repeat, so long as
product continues to enter the meter. If product flow stops, pressure in the meter equalizes and
motion stops. Thus the meter only operates when product is flowing.

METER APPLICATION
When installing a meter into a system, several factors must be considered.
Flow Rate
The flow rate of the system must be within the meter's capability. The 682 meter can operate
between 0.2 and 40 GPM. The flow rate of the system is dependent upon the system's pump
capabilities, and the plumbing configuration, and the product to be measured.
Operating Pressure
The 682 meter can operate at pressures up to 150 PSI (10.5 BAR).
Compatibility
Products with suspended solids in them will scratch the piston liners and tear the plunger cups.
The liquid to be metered must also be compatible with the meter. The standard petroleum (SP) is
for service in petroleum with the meter. The all ferrous (AF) is for industrial and agricultural
products, and the stainless steel (SS) is for service on products, which required 316 stainless steel
for proper handling. Note that the 682 meter should not be used on water. Water has no
lubricity and will drastically shorten the meter's service life. It is recommended that if the meter
is to be used on water, it should be derated about 40 to 50 percent of flow.
Operating Temperature
The temperature range of the product to be metered must be within the meter's range. The SP
meter can operate between -20°F and 200°F. The AF and SS meters can operate between 20°F
and 400°F. Temperatures above 200°F require a heat extension.
Registration
The 682 meter normally uses a Veeder Root 5-wheel resetable register in 1/10th U.S. gallons,
with an 8-digit non-resetable totalizer. Litre’s, ounces, pounds or nearly any other unit of
measure can be accommodated upon request.
Weights & Measures Approved Device
The TCS model 682 series flow meter holds the National Type Evaluation Program (NTEP)
Certificate of Conformance meeting the National Institute of Standards and Technology (NIST)
Handbook 44 requirements. The TCS model 682 series flow meter combines outstanding linear
accuracy (+/-0.1% over entire 200:1 range) with superior performance. At constant flow, with
all other conditions being constant, the flow meter does not vary more than +/-0.01% in
repeatability. The TCS model 682 series flow meter is virtually unaffected by changing
viscosities. The inline meter design allows the TCS model 682 series flow meter to have a wide
operating range (0.2 to 40 GPM) and fluid compatibility that has been proven over many years of
service.

INSTALLATION AND START UP
Best Plumbing Configuration
Meters and piping should be installed to prevent drainage of product from the meter when the
system is not running. One way to do this is to have the inlet and outlet of the meter lower than
the associated system plumbing (sump position). Also, undue strain on the meter's 150# flanges
from the connected piping must be avoided.
Slow Flooding Of System
When a pump is turned on and a valve opened in a new, dry system, tremendous pressure can be
built up in the piping and forced through the meter. The high pressure and volume of air causes
the meter to operate more quickly than normal. When product reaches the meter, there is an
abrupt slowing of the meter plungers, which could cause damage to the register, plunger, gears or
other components.
The recommended method of starting any system is to flood the piping gradually. This allows
product to slowly force the air from the entire system.
Protection From Debris
On new installations, care must be taken to protect the meter from damage during start-up.
Damage may result from the passage through the meter of welding slag or spatter, thread
cuttings, rust, etc. There are several methods of protecting meters from this material including:
the insertion of a spool (a flanged length of pipe equal in length to the meter and any accessories
attached to the meter) in place of the meter until the system is flushed, temporarily bypassing the
plumbing around the meter, or by installing a strainer ahead of the meter in the line.
Calibration
The meter's calibration must be checked (and adjusted, if necessary) using the product being
metered by the user. Generally, calibrating it to a specific product and installation maximizes
any meter's accuracy. The 682 meter exceeds the accuracy requirements specified in NIST
Handbook 44, which is +/-0.2% at the factory. In the field, NIST Handbook 44 maintenance
test accuracy requirements are +/-0.5% on a special test, and +/-0.2% on a normal test. In a five
gallon test, 0.2% = 2.31 cubic inches, 0.3% = 3.47 cubic inches, and 0.5% = 5.78 cubic inches.

STORAGE INSTRUCTIONS
Short periods of non-use of the meter (a week or less) will present no problem, provided that the meter remains full
of product. For long periods of non-use, such as winter storage, the following procedure is recommended. Before
long term storage, a good practice is calibration of the meter to determine that it is functioning properly.
1) To store the meter when it is left in line, flush the system with clean water until 40-50 gallons of water have
gone through the meter.
2) Pump a 50% anti-freeze / 50% water solution through the entire system (100% RV antifreeze may be used
instead). With the pump running, shut off a valve downstream from the meter, making sure that anti-freeze
solution is present at that point. Then close an upstream valve, such that the meter remains full of anti-
freeze solution.
3) Remove the register from the meter, and lubricate the drive coupling shaft. After lubrication it, replace the
register onto the meter.
4) When starting the system after a period of storage, rechecking the meter's calibration as detailed earlier in
the service manual.
CALIBRATION OF THE 682 METER
A. It is important to test the repeatability and accuracy of your meter. To test repeatability:
1) Run a fast (high gallons per minute) test in your prover and record how much the meter is over or under
registering. Do NOT change the meter's calibration.
2) Run a slow (low gallons per minute) test and again record how much the meter is over or under
registration.
If the results from the fast and the slow test are the same or close to the same, the meter can be successfully
calibrated. If the test results differ beyond the rated tolerance of the meter, then repairs are necessary before the
meter can be calibrated.
B. A valve or nozzle must be at the end of the delivery hose (at the prover).
C. Turn on the pump and purge the system of air. Leave the pump on.
D. Shut off the valve at the end of the delivery hose and let the system pressurize.
E. Wet the prover and empty it, letting it drip for 30 seconds.
F. Reset the register on the meter to "0".
G. Fill the prover to the line marked "0".
H. Record what the register reads. Every1/10 gallon difference between the register and the 5 gallons known
to be in the prover equals a +/-2% inaccuracy. For example, a reading of 4.9 gallons on the register,
compared with a 5 gallon prover filled to the "0" line means the meter is giving away 2% of the product it
meters.
I. The top disc on the calibrator has a tab sticking up. The tab is marked with a "plus" and a "minus" sign.
This indicates "plus" product and "minus" product. By turning the disc in one direction or the other,
product delivery will be increased or decreased.
J. A full revolution of the disc will change the calibration of the meter 3%. Therefore, if the meter shows 4.9
gallons on the register, the disc should be turned 2/3 of one revolution (2%) in the minus direction, since in
this case we want less product through the meter (5 gallons passed through it in the test, and only registered
4.9 gallons).
K. Empty the prover and let it drip for 30 seconds.
L. Run a second test and make a fine adjustment; and then another test to check your fine adjustment.
M. Replace the pin into the disc, and seal it with the seal wire.
NOTE: If your meter has a mechanical or electronic preset, it should be set high enough so that it doesn't
affect the calibration process. Only a valve at the prover should be used to control the flow during
calibration.

KEY FEATURES OF 682 METER
TYPICAL ACCURACY CURVE
32 SSU SOLVENT
-0.2
-0.1
0
0.1
0.2
0 5 10 15 20 25 30 35 40
GALLONS PER MINUTE
% DEVIATION
The 682 meter's linear accuracy (percent of error over or under the zero -error level) remains
within design parameters (+/-0.2%) over its 0.2 to 40 GPM flow range. This exceeds the
maintenance requirements for accurate custody transfer of product, as specified in the National
Institute of Standards and Technology (NIST) Handbook 44.
PRESSURE DROP CURVE
32 SSU SOLVENT
0
5
10
15
20
0 5 10 15 20 25 30 35 40
GALLONS PER MINUTE
P.S.I.
The 682 meter is mechanically capable of accurately metering products as slow as 0.2 GPM, and
as quick as 40 GPM. Comparing the lowest and the highest flow rate results in a 200:1 turn
down ratio for the 682 meter. The nameplate on the 682 meter states the flow rate as 2 -40
GPM. This matches the flow range across which the meter was tested while earning a Certificate
of Conformance from the National Type Evaluation Program (NTEP). It should be noted that as
viscosity increases, maximum flow rate may decrease. See the viscous liquids performance
graph for specific information. Viscosity is a measure of the flow ability of a product.

VISCOUS LIQUIDS PERFORMANCE

682 METER EXCHANGE PROGRAM
Overview
TCS offers an exchange program on the 682 AF and SP meters. The exchange price, equal to
less than 1/3 the price of a new meter, after the credit given from the returned meter core. This
makes the exchange program a powerful value -added option for 682 owners. Exchange meters
are available for same day shipping. For the exchange program to continue smoothly, the used
meter must be returned to TCS as promptly as possible, especially in the spring months.
Exchange Program Highlights
1) Exchange meters are always in stock.
2) Fast service to your customer minimizes downtime.
3) Customer needs fewer parts for inventory to ensure continuous operation.
4) All exchange meters maintain NTEP Certificate of Conformance.
5) The program applies to one meter or several meters at a time.
6) Meters are factory tested and calibrated.
7) Saves your customer money.
8) Repeat business for distributor.
9) Meter can be rebuilt numerous times.
Program Details
When a meter is exchanged, the user retains his register and adapter, as well as any other
accessories he may have (presets, ticket printers, etc.). Separate exchange programs exist for
registers and some other accessories.
The exchange meter, which is shipped from TCS, is calibrated and freshly painted. The
exchange meter is guaranteed to be free of defects in material and workmanship for 180 days
from the date it ships to the end user or distributor.
The used meter returned to TCS should be shipped freight prepaid (truck shipments are
recommended for the safety of meter). It must be flushed and have a Material Safety Data
Sheet (MSDS) identifying the product that was in the meter. Regardless of the condition of the
internal parts of the meter, the only additional charge a distributor may be subject to is for the
upper or lower housing. If the upper or lower housing is chipped, cracked, welded or similarly
damaged and in need of replacement, then the dealer's core credit will be reduced accordingly.

DIMENSIONS
Measurements are in Inches.

TROUBLE SHOOTING THE 682 METER
The following is a list of common problems that can be encountered with a 682 meter, and
possible causes and solutions for them.
A. PROBLEM: The meter allows product to pass through it, but the register on the meter
doesn't move.
1) Check the reset knob on the register. On older style Veeder Root registers, this knob can become stuck-in,
which will disengage registration. In this case, though, the totalizer would still register.
2) Check the screws that hold the gear plate onto the bottom of the register. If they become loose, neither the
register nor the totalizer will register.
3) The drive-gear coupling shaft (in the gear plate under the register) is broken or pin missing.
4) The retaining ring on the counter drive gear has come off or broken, allowing the drive gear to disengage
from the drive shaft gear assembly.
5) The post on the wobble plate inside the meter has snapped off. When this happens, it usually indicates that
air has been pumped though the meter.
6) The connector on the piston assembly inside the meter is broken, allowing product to pass.
B. PROBLEM: The meter will not deliver product and will not register.
1) Check any air eliminator and/or strainer screens in the system for blockage. Also, check all valves in the
system for proper operation. If the problem still hasn't been discovered after those checks, determine what
the pressure is before and after the meter (with the pump running). Equal readings would indicate the
meter isn't necessarily the problem.
2) On older style Tokheim 682 meters, there is a back pressure valve on the discharge of the meter, which can
become stuck shut.
3) If it is determined that the problem is in the meter itself, then the meter valve (inside the meter) is stuck
down onto the valve body.
C. PROBLEM: The meter delivers more product then what is registered.
1) First, the meter should be tested for repeatability. To test repeatability, run a fast(high gallons per minute)
test in your prover and record how much the meter is under registering. DoNOT change the meter's
calibration. Then, run a slow (low gallons per minute) test and again record the amount that the meter is
under registering
2) If the results from the fast and the slow test are the same or close to the same, the meter has repeatability
and can be calibrated. If the test results differ beyond the rated tolerance of the meter, then repairs are
necessary.
NOTE: If the meter is more than 7% inaccurate (register reading of 4.65 or less gallons in a 5 gallon test),
then it cannot be calibrated until repairs are made.
D. PROBLEM: The meter delivers less product then what it registers.
1) The meter could have the wrong gear train in its register.
2) Check for leaks on the suction side of the pump, including the pump seal. Air, which is sucked into the
system and pushed though the meter would affect registration.
3) After eliminating these possible causes, check the meter's repeatability, as outlined in problem C above.
4) Register may need repair.
E. PROBLEM: The meter has excessive knocking noise.
1) Check the calibrator on the meter. If it is adjusted too far out, excessive knocking is possible.
2) If the problem isn't the calibrator, then the meter valve or another internal part may need repair or
replacement.

METER ASSEMBLY
682-15

METER ASSEMBLY
682-15
ITEM# MFG DESCRIPTION QTY SP AF SS
1TCS Screw, 3/8-16 X 1-1/8 1297-050361 297-050361 1-126333
2TCS Washer, 3/8 Split Lock 115-050641 15-050641 1-126334
3TCS Counter Support 11-312518 1-312518 1-312518
4TCS Roll Pin 149-052910 49-052910 3-130752
5TCS Drive Shaft 11-114815 1-114815 1-126900
6TCS Screw, 10-24 X 1/2 6252-50001 252-50001 1-128279
7TCS Washer, #10 Split Lock 12 1-126316 1-126316 1-126316
8TCS Compression Washer 21-130872 1-130872 2-130872
9TCS Drive Shaft Packing Kit 1226199-1226199-1226199-1
10 TCS Washer, 9/16 OD X 0.10 T 10 1-125095 1-125095 1-126903
11 TCS Pipe Plug, 1/4” 22-051913 2-051913 2-126146
12 TCS Cover & Post Assembly1227006-1227006-1227006-3
13 TCS Gasket, 8-3/16 ID Teflon 168-311105 1-315423 1-315423
14 TCS Washer, 3/4 OD X 0.015 Rulon 11-125120 1-125120 1-125120
15 TCS Counter Drive Gear Assembly 1226136-1226136-1226136-2
16 TCS Cotter Pin, 1/16 X 1/2 1--1-126318
17 TCS Washer, 7/8 OD X 0.15 Rulon 11-125407 1-125407 1-125407
18 TCS Drive Shaft Gear 1226135-1226135-1226135-2
19 TCS Cotter Pin, 3/16 X 1-1/4 113-052870 13-052870 1-126319
20 TCS Drive Shaft Pin 1/4 X 1-3/32 11-126913 1-126913 1-126914
21 TCS Cotter Pin, 1/16 X 1/2 11-126318 1-126318 1-126318
22 TCS Seal Pin 11-019602 1-019602 1-126929
23 TCS Seal Wire and Seal 11-118849 1-118849 1-118849
24 TCS Compensator Shaft 11-224081 1-224081 1-224119
25 TCS Nut, 5/16-18 12-050301 2-050301 1-126320
26 TCS Compensating Washer 11-019797 1-019797 1-126927
27 TCS Index Disc 11-126931 1-126931 1-126931
28 TCS Index Plate 11-226085 1-226085 1-130853
29 TCS Compression Spring 11-130935 1-130935 1-130935
30 TCS Compensator Shaft Seal Kit 1227000-1227000-1227000-1
31 TCS Screw, 7/16-14 X 1-1/4 10 3-230958 3-230958 1-130879
32 TCS Retaining Ring, 0.320 ID X 0.025 T 112-053420 12-053420 -
33 TCS Bearing Retainer, Plunger 31-126957 1-126957 1-126957
34 TCS Plunger Screw, 10-32 X 3/8 12 1-126329 1-126329 1-126329
35 TCS Bearing Seat, Plunger 31-219378 1-219378 1-130908
36 TCS Piston Connector, Plunger 31-126939 1-126939 1-126939
37 TCS Plunger Disc 31-126878 1-126878 1-126878
38 TCS Plunger Cup Kit (3 Cups) 1218769-1218769-1218769-1
39 TCS Plunger Cup Support 31-126876 1-126876 1-126876
40 TCS Plunger Assembly 3226182-2226182-2226182-2
41 TCS Nut, 1/4-20 31-126321 1-126321 1-126321
42 TCS Washer, 1/4 Split Lock 31-126317 1-126317 1-126317
43 TCS Slack Roller Assembly 1219800-1219800-1219800-2
44 TCS Washer, 0.863 OD X 0.030 Rulon 11-125103 1-125103 -
45 TCS Slack Spring Assembly 1221403-2221403-2221403-5
46 TCS Ball, 1/4 Dia. 31-124588 1-124588 2-130905
47 TCS Wobble Plate Assembly 1219331-1219331-1219901-2
48 TCS Wear Plate 11-217934 1-217934 1-217934
49 TCS Ball, 5/8 Dia. 11-125046 1-125046 1-130905
50 TCS Main Pivot Assembly 1219572-4219572-4219572-4
51 TCS Compensating Pinion 11-129607 1-129607 2-129607
52 TCS Screw, 1/4-20 X 3/4 31-126327 1-126327 1-126327
53 TCS Main Pivot Bracket Assembly 1218236-4218236-4219260-6
54 TCS Slotted Screw, 1/4-20 X 1 31-126962 1-126962 1-126962
55 TCS Screw, 1/4-20 X 1 61-126326 1-126326 1-126326
56 TCS Bracket 13-218608 3-218608 6-218608
57 TCS Valve 11-219330 1-219330 220496-2
58 TCS Seat 11-038618 1-038618 1-310336
59 TCS Seat Gasket, Teflon 11-038619 1-038619 1-038619
60 TCS Body, Seat and Pin Assembly 1227093-2227093-2227093-4
61 TCS Bolt, 1/2-13 X 1-3/4 85-230958 5-230958 -
62 TCS Flange 21-226166 1-226166 -
63 TCS Flange Gasket 22-221453 2-221453 2-221453
64 TCS Nut, 1/2-13 81-231174 1-231174 -

682 METER BODY REPAIR INSTRUCTIONS
I. A. Remove all parts and seals from the meter body and clean them. You may air blast parts with
a glass bead material to clean parts.
B. Always replace bracket (#56), screws (#54) & (#34), plunger cups (#38) and Rulon seals
(#14, 17 & 44).
C. Check for: 1. Excessive wear on the wobble plate (#47) guide holes.
2. Pitting on ball bearings (#49) & (#46).
3. Excessive wear on the guide posts on main pivot bracket assembly (#53).
4. Wear on the AF/SP valve (#57) or SS valve insert (#57).
5. Wear on the valve seat (#58).
6. Wrinkles on the sleeves in cylinders (TCS 1-126891) of the body.
NOTE: Honing sleeves with Emory wheel may buff out wrinkles.
II. A. Mount valve seat (#58) to body (#60), with seat gasket (#59).
B. Lap valve (#57) for AF, SP or SS.
1. AF & SP –Use Rectorseal® Clover lapping compound or equivalent on
valve (#57) & seat (#58). Move valve repeatedly in a Figure 8, and clean
compound off valve and seat thoroughly when finished.
2. SS –Use 220 & 320 grit silicon sand paper to lap valve & insert (#57).
Move valve repeatedly in a Figure 8 on 220 grit paper, then use the 320 grit
paper. Wipe valve Rulon insert clean.
C. Replace plunger cups (#38) in piston (#40) and carefully place into cylinders.
SEE PLUNGER CUP KIT for piston repair instructions. DO NOT cut or crimp plunger
cups.
D. Main Pivot & Wobble Plate Assembly.
1. Screw the main pivot assembly (#50) all the way into main pivot bracket
assembly (#53) and place pinion (#51) in its slot. For AF & SP meters,
unscrew the pinion and main pivot bracket assembly 5 full turns. For SS
meters, unscrew the pinion and main pivot bracket assembly 3 ½ full turns.
This should help bring meter within range while calibrating.
2. Drop the slotted screws (#54) into bracket.
3. Place bracket with screws into main pivot bracket assembly.
4. Set 5/8” ball bearing (#49) into position.
5. Place the wear plate (#48) over the screws (#54).
6. Set wobble plate (#47) onto the screws (#54) and fasten down with lock
nuts (#41) & lock washers (#42).
7. Set slack spring assembly (#45) on wobble plate post with Rulon washer
(#44) & slack roller (#43).
8. Mount main pivot bracket assembly to valve (#57) & seat (#58) with lock
washers (#42) & screws (#52).
E. Connect Pistons to Wobble Plate.
1. Carefully slide connector (#36) over the wobble plate (#47) bearing seats.
2. Place 1/2” ball bearing (#46) onto wobble plate and cover with bearing seat
(#35) & retainer (#33).
3. Rotate wobble plate (#47) & pistons (#40) through each cylinder to make
sure of smooth flowing characteristics.

682 METER BONNET REPAIR INSTRUCTIONS
I. A. Remove all parts and seals from the meter bonnet and clean them. You may air blast
parts with a glass bead material to clean parts.
B. Check for excessive wear. NOTE: Problems with any of these following items will
require a new bonnet or shafts.
1. Drive Shaft (#5). Emory cloth may buff these out.
2. Compensator Shaft (#24). Emory cloth may buff these out.
3. Bonnet (#12)
a. Drive shaft packing gland.
b. Compensator shaft gland.
c. Counter drive gear assembly seat & post.
II. A. Insert drive shaft gear assembly (#18) with Rulon washer (#17) into the meter drive
shaft packing. Install drive shaft packing Kit (#9).
SEE DRIVE SHAFT PACKING KIT INSTRUCTIONS for more information.
C. Slide the counter drive gear assembly (#15) with Rulon washer (#14) over the post.
Each meter uses about 3-4 washers (#10) before the cotter pin (#21) is inserted.
D. Compensator Shaft Assembly
1. Insert AF/SP retaining ring (#32) or SS cotter pin (#16) on to the
compensator shaft (#24).
2. Insert compensator shaft into packing gland.
3. Install compensator shaft packing kit (#30).
SEE COMPENSATOR SHAFT PACKING KIT INSTRUCTIONS
for more information.
E. Mount Bonnet to Base.
1. Place gasket (#13) into bonnet (#12).
2. Move compensator shaft (#24) to match pinion (#51) in the base by
using the index disc (#27).
3. Mount bonnet (#12) to base (#60).
4. Insert screws (#31) and tighten.

COMPENSATOR SHAFT SEAL KIT INSTRUCTIONS
1) Remove screws that bolt the meter cover assembly to the
meter body. Loosen and remove the entire meter cover
assembly.
2) Cut seal wire and remove seal pin from index disc.
3) Unscrew hex nut from the compensator shaft. Remove
compensator washer, index disc, index plate and
compression spring from the shaft.
4) From inside the cover housing, turn the compensator shaft
until the attached truarc "E" retaining ring or cotter pin clears
the edge of the counter drive gear. Slide the compensator
shaft assembly from the housing.
5) Remove the spacer. Lift the old packing from the housing.
Be sure there are no foreign particles left in the cavity.
6) Replace the compensator shaft assembly into the cover
housing. Support the shaft from beneath while packing the
new seal and spacer.
7) SEE ILLUSTRATION FOR PACKING SEQUENCE
8) Replace the compression spring, index plate, index disc,
compensator washer and hex nut to the compensator shaft. Do not fully tighten the hex nut until the meter has
been calibrated.
9) Reassemble the meter cover assembly to the meter body assembly and tighten down the screws. Calibrate the
meter according to instructions.
METER DRIVE SHAFT PACKING KIT INSTRUCTIONS
1) Remove screws that bolt the meter cover assembly to the
meter body. Loosen and remove the entire meter cover
assembly.
2) Carefully remove the roll pin from the drive shaft.
3) Remove (3) screws, (3) lock washers, and the
compression washer.
4) From inside the cover housing, remove the retaining ring
or cotter pin from the counter drive shaft. Remove the
counter drive gear and washers. Slide the drive shaft
assembly from the housing.
5) Lift the old packing from the housing. Be sure there are
no foreign particles left in the cavity.
6) Replace the drive shaft assembly into the cover housing.
Secure in position by reassembling the counter drive gear
with the washers and retaining ring or cotter pin
previously removed.
7) Support the counter drive shaft assembly from beneath
while packing the spacer bearings, washers and the new
seal.
8) SEE ILLUSTRATION FOR PACKING SEQUENCE
9) Replace the compression washer with the screws and lock washers.
10) Insert the roll pin in the drive shaft. Be sure to support the shaft while doing this to prevent bending it.
11) Reassemble the meter cover assembly to the meter body assembly and tighten down the screws.

PLUNGER CUP REPLACEMENT
1) Remove plunger assembly from
meter body.
2) Loosen and remove two (2) round
head screws and lift plunger cup
support from plunger cup and
plunger disc.
3) Discard the old plunger cup kit
4) Place the new plunger cup on the
plunger disc. Add the cup support
and secure with the two (2) round
head screws previously removed.
NOTE: Apply Loctite 271 (or
equivalent) to the screw threads. Be
sure the cup is evenly spaced on the
plunger disc and support.
5) Form the cup by turning the
plunger assembly in your hand
using your thumb to roll the edge
slightly.
6) After the cup is partially formed,
place the plunger assembly into
the meter body and press into the
piston cylinder.
7) Turn the assembly in the piston
cylinder to assure the cup is
evenly formed to the cylinder.
8) Replace previously removed parts
and reassemble meter. Test and
calibrate meter for accuracy.
.

AIR ELIMINATOR ASSEMBLY
640-15

AIR ELIMINATOR ASSEMBLY
640-15
ITEM# DESCRIPTION QTY AF SS
1Cover 164002-264002-3
2Bracket Assembly 164019 64019
3Lock Washer 31-126316 1-126316
4Screw 364010 64010
5Short Link Pin 264023 64023
6Connecting Arm 264007 64007
7Lever Arm 164006 64006
8Cotter Pin 61-126318 1-126318
9Float Assembly 164005 64005
10 Pipe Plug 12-051913 2-126146
11 Base 164003-264003-3
12 Gasket 164004 64004
13 Shut Off Arm 164015 64015
14 Long Link Pin 264012 64012
15 Shut Off Valve 164016 64016
16 Valve Seat 164001 64001
17 External Valve O-Ring 164013 64013
18 Internal Valve O-Ring 164014 64014
19 Screw 10 64021 64021
640 AIR ELIMINATOR REPAIR INSTRUCTIONS
1) Remove the screws (#19) that bolt the air eliminator base (#11) to the cover assembly (#1).
2) Remove the screws (#4) and washers (#3) that mount the float and bracket assembly (#2) to
the cover assembly (#1). Inspect for damage to float and bracket assembly, making sure no
liquid is inside the float (#9) and o-rings (#17 & 18) are not torn or cut. All foreign particles
must be removed (i.e. dirt, metal shavings, …)
3) Replace all damaged air eliminator parts.
4) Reassemble the float and bracket assembly to the cover assembly with screws (#4). Do not
tighten screws until the bracket assembly (#2) is properly adjusted between the shut-off valve
(#15) and seal (#18).
5) Once float and bracket assembly are tightened, reassemble air eliminator.

HYDRAULIC VALVE ASSEMBLY
650-15