McCrometer Water Specialties ML04 User manual

30119-07 Rev. 2.7/07-09
1
24” - 54”
MAIN LINE METERS
MODELS
ML04, ML08, ML12, ML16, ML20, ML22, ML24, MLI1
OPERATION AND MAINTENANCE MANUAL
PARTS LIST
FEATURING:
*MODEL CN06-2 INDICATOR-TOTALIZER
* CERAMIC BEARING CARTRIDGE PROPELLER
* ONE PIECE SEPARATOR/SPINDLE AND THREADED REVERSE THRUST BEARING CARTRIDGE
3255 WEST STETSON AVENUE
HEMET, CALIFORNIA 92545 U.S.A.
PHONE:
FAX:
VISIT OUR WEBSITE:
951-652-6811
951-652-3078
www.mccrometer.com

30119-07 Rev. 2.7/07-09
2
Copyright © 2005-2008 McCrometer. All printed material should not be changed or altered without permission of McCrometer. The published technical data and instructions are subject to change
without notice. Contact your McCrometer representative for current technical data and instructions.
WARRANTY
This Warranty shall apply to and be limited to the original purchaser consumer of any McCrom-
eter product. Meters or instruments defective because of faulty material or workmanship will
be repaired or replaced, at the option of McCrometer, free of charge, FOB the factory in Hemet,
California, within a period of one (1) year from the date of delivery.
Repairs or modifications by others than McCrometer or their authorized representatives shall
render this Warranty null and void in the event that factory examination reveals that such repair
or modification was detrimental to the meter or instrument. Any deviations from the factory
calibration require notification in writing to McCrometer of such recalibrations or this Warranty
shall be voided.
In case of a claim under this Warranty, the claimant is instructed to contact McCrometer, 3255
W. Stetson Ave., Hemet, California 92545, and to provide an identification or description of the
meter or instrument, the date of delivery, and the nature of the problem.
The Warranty provided above is the only Warranty made by McCrometer with respect to its
products or any parts thereof and is made expressly in lieu of any other warranties, by course of
dealing, usages of trade or otherwise, expressed or implied, including but not limited to any implied
warranties of fitness for any particular purpose or of merchantability under the uniform commer-
cial code. It is agreed this Warranty is in lieu of and buyer hereby waives all other warranties,
guarantees or liabilities arising by law or otherwise. Seller shall not incur any other obligations
or liabilities or be liable to buyer, or any customer of buyer for any anticipated or lost profits,
incidental or consequential damages, or any other losses or expenses incurred by reason of the
purchase, installation, repair, use or misuse by buyer or third parties of its products (including
any parts repaired or replaced); and seller does not authorize any person to assume for seller any
other liability in connection with the products or parts thereof. This Warranty cannot be extended,
altered or varied except by a written instrument signed by seller and buyer.
This Warranty gives you specific legal rights, and you may also have other rights which vary from
state to state.
McCrometer reserves the right to make improvements and repairs on product components which
are beyond the Warranty period at the manufacturer’s option and expense, without obligation to
renew the expired Warranty on the components or on the entire unit. Due to the rapid advancement
of meter design technology, McCrometer reserves the right to make improvements in design and
material without prior notice to the trade.
All sales and all agreements in relation to sales shall be deemed made at the manufacturer’s
place of business in Hemet, California and any dispute arising from any sale or agreement shall
be interpreted under the laws of the State of California.

30119-07 Rev. 2.7/07-09
3
MAIN LINE METER
INSTALLATION
I.UNCRATING. When uncrating the meter, any damage due to
rough or improper handling should be reported to the transpor-
tation firm and McCrometer. If for any reason it is determined
that the unit or parts of the unit should be returned to the
factory, please contact McCrometer for clearance prior to
shipment. Each unit must be properly crated to prevent any
further damage. The factory assumes no responsibility for
equipment damage in return shipment due to improper packag-
ing. The shipping crate contains the following items:
Main Line Meter Assembly with
CN06-2.............................................................................1
Mounting Equipment as required......................................-
Operation and Maintenance Manual ...............................1
Tool T-2402X-1 ...............................................................1
II.INSTALLATION of McCrometer Main Line Meters varies de-
pending upon the type and model of meter selected for each
application. The meter must have a full flow of liquid for
proper accuracy. The meter installations fall into three basic
categories:
1. FLANGED TUBE METERS can be installed exactly as you
would install any short length of flanged pipe. Flanged ends
are standard pattern and drilling for any meter size.
2. PLAIN END TUBE METERS can be installed similar to re-
placing a short length of plain end pipe in the line by either
welding, or by using one of a variety of pipe couplings avail-
able. NOTE: Meter head assembly (#13) should be removed
before welding. (See step IV.)
3. WELDING SADDLE METERS can be installed on an existing
pipeline by cutting a hole of proper size and welding a meter
saddle (furnished with the meter) to the pipe. The installation
steps outlined below should be followed carefully to achieve
proper mounting of the meter:
A. ALIGN the cutout template in the desired position for the
meter on the pipe. Make certain that the center line of the
pipe and the center line marked on the template are parallel
with each other. Some people prefer to use the saddle as
the template.
B. SCRIBE the pipe along the line specified for your meter size
cutout.
C. CUT OUT the section of pipe within the scribed line and
remove all burrs, slag and rough edges from the inside and
outside of the cutout section.
D. STRAIGHTENING VANES are recommended when there
is less than ten pipe diameters of straight pipe (no fittings
or obstructions) directly upstream from the meter location.
Straightening vanes are available from the factory and when
required should be installed in the following manner, prior to
welding the saddle to the pipe:
a.) HOLD the vanes on the outside of the pipe ten (10)
MAIN LINE METER
INDEX
I. UNCRATING
II. INSTALLATION
1. Flanged Tube Meters
2. Plain End Tube Meters
3. Welding Saddle Meters
A. Align
B. Scribe
C. Cut Out
D. Straightening Vanes
a.) Hold
b.) Mark
c.) Insert
E. Welding Saddle
F. Meter Assembly
III. METER SERVICE SCHEDULE
IV. METER HEAD ASSEMBLY
V. WORKING AREA
VI. INDICATOR-TOTALIZER
1. Bonnet Mounting Screws
2. Indicator Mounting Screws
3. Meter Change Gears
4. Indicator-Totalizer
5. Gears
VII. GEARBOX
VIII. VERTICAL SHAFT ASSEMBLY
IX. MITER GEAR FRAME ASSEMBLY
1. Driven Miter Gear Assembly
2. Drive Miter Gear Assembly
3. Components
X. PROPELLER ASSEMBLY
1. Propeller Removal
2. Reverse Thrust Bearing Cartridge
3. Water LubricationCeramic Bearing Cartridge
4. Ceramic Bearing Cartridge
5. Spindle Ceramic Sleeve
6. Separator/Support Spindle Assembly
7. Propeller Installation
8. Thrust Bearing Cartridge Assembly
9. Propeller Bearing
XI. INSPECTION
XII. REASSEMBLY
1. Miter Gear Frame Assembly
2. Gearbox
3. Vertical Shaft Assembly
4. Change Gears
5. Indicator-Totalizer
6. Bonnet Assembly
7. Propeller Assembly
8. Meter Head Gasket

30119-07 Rev. 2.7/07-09
4
inches upstream from the center of the cutout opening.
The vanes must be parallel to the center line of the
pipe and should be equally spaced radially 120 degrees
apart.
b.) MARK the pipe around the straightening vane bolts
and burn or drill holes in the pipe where marked.
c.) INSERT the vanes into the pipe through the saddle
cutout opening with the bolts protruding through the
holes. Place seal (stainless steel with rubber) washers
over each bolt, directly against the pipe. Brass washer
should be placed between the washer and the nut.
Secure nuts to hold vanes to the pipe. Nuts, bolts,
and washers not supplied. The vanes can be welded to
the pipe if desired. NOTE: Meter head assembly (#13)
should be removed before welding. (See step IV.)
E. WELDING SADDLE should be centered over the cutout
section of the pipe. Make certain that no part of the pipe
protrudes past the inside edge of the welding saddle. Tack
weld the saddle to the pipe prior to welding a continuous
bead around the saddle. NOTE: Meter head assembly (#13)
should be removed before welding. (See step IV.)
F. METER ASSEMBLY should be placed in the line with the
propeller nose facing the upstream flow in the pipe. Use care
when installing the meter not to damage the propeller as it
passes through the saddle opening. The meter head gasket
should be inspected for any sign of damage and replaced, if
necessary, before installing the meter. Tighten the meter
head bolts securely.
MAIN LINE METER
OPERATION AND MAINTENANCE MANUAL
III.MCCROMETER products have been carefully designed to
be as maintenance free as possible. Periodic preventive
maintenance, however, is highly recommended and should be
practiced according to schedule to assure continuous accuracy
and trouble-free performance of your propeller meters. The
maintenance and inspection procedure can also be used as a
guide to locating a problem in the unit that may be the cause
of abnormal meter operation.
Routine preventative maintenance should be performed on all me-
ters, which includes cleaning and an inspection of the propeller
and its bearing. The interval between inspections depends
on the water quality and the usage of the meter. The initial
inspection should be performed after one to two years of
service to determine the period between future inspections.
After five to ten years, the complete meter should be inspected
to ensure years of dependable service.
IV.METER HEAD ASSEMBLY (#13) should be removed from the
service line by removing the meter head bolts (#53) and lifting
up the rear (downstream) portion of the meter head (#13),
carefully pulling the assembly back (downstream) and up at
the same time to allow the propeller (#40) to clear the inside
of the meter saddle and be lifted free. Inspect the meter head
gasket (#52) for any sign of damage and replace if necessary.
Replace the meter head assembly (#13) with a dummy cover
plate if the service line is to remain in operation.
V.WORKING AREA chosen for disassembly and reassembly of
the internal meter components should be clean to reduce
the chance of dust or dirt particles being introduced into the
meter mechanism.
VI. INDICATOR-TOTALIZER service procedure should include
removal, cleaning, and inspection of the unit, noting any
excessive wear on the gears and other wear points that may
lead to operational problems in the unit.
1. BONNET MOUNTING SCREWS (#2), located beneath the
indicator-totalizer bonnet lid, should be removed and the entire
bonnet (#1) lifted off the meter. Replace the o-ring seals
around each of the four screws (#3) and at the bottom of
the bonnet (#4), and cover each of the new o-rings with a
thin coat of silicone grease.
2. INDICATOR MOUNTING SCREWS (#6) and shake-proof
washers (#7) holding the indicator-totalizer unit (#5) to the
meter head (#13) should be removed and the unit lifted off,
exposing the A-drive gear (#11) attached to the top of the
vertical shaft (#14).
3. METER CHANGE GEARS should be inspected for any sign
of wear. The A-(drive) gear (#11) is attached to the top of
the vertical shaft (#14), and the B-(driven) gear (#12) is at-
tached to the bottom of the indicator (#5). The position of
the A-drive gear should be checked and adjusted, if necessary,
to position the top face of the gear 1/8 inch below the top
surface of the meter head (#13). The position of the B-driven
gear top face should be 1/8 inch below the bottom of the
indicator-totalizer.
4. INDICATOR-TOTALIZER unit (#5) should be cleaned thor-
oughly using a mild soap and a soft brush. Under no cir-
cumstances should the entire unit be immersed in the soap or
should any metal object be used when cleaning and inspecting
the internal parts of the indicator-totalizer unit.
5. GEARS within the indicator-totalizer unit (#5) should be
inspected carefully. If any excessive wear is visible on the
gear teeth and other wear points, the unit must be returned
to McCrometer for repair.
VII.GEARBOX (#17) is sealed and filled with gearbox oil to assure
the long life and proper operation of the parts contained in
the miter gear frame assembly (#21). Before disassembling
the lower meter assembly, the oil must be emptied out of
the gearbox (#17). Vertical shaft assembly (#14) must be
removed before the gearbox oil can be drained.
VIII. VERTICAL SHAFT ASSEMBLY (#14) is pulled directly out
the top of the meter after removing two screws (#16) inside
the meter head (#13). Spin the upper bearing assembly (#15)
gently, checking for any sign of wear. Inspect the vertical
shaft assembly (#14) to be sure it is not bent or damaged.
To drain gearbox oil, turn meter over onto the meter head

30119-07 Rev. 2.7/07-09
5
(#13) and drain oil into a container.
IX.MITER GEAR FRAME ASSEMBLY (#21) can be pulled out of
the back of the gearbox (#17) after removing four screws
(#33). Spin the driven magnet (#24) to make sure the unit
runs freely and inspect the teeth on both the drive (#26)
and the driven (#27) miter gear assemblies for any sign of
excessive wear. If the assembly spins freely and the miter
gears (#26 & #27) are not worn, there should be no further
inspection or disassembly of the unit. Should this service
procedure show that the unit does not spin freely or that
the miter gears (#26 & #27) are worn, the miter gear frame
assembly (#21) should be disassembled (as the following steps
indicate) and all worn or damaged parts replaced.
1. DRIVEN MITER GEAR ASSEMBLY (#27) can be removed
by loosening the allen head set screw, located on the side of
the gear hub, and pushing the driven miter gear shaft (#29)
out of the assembly. Note the location of the shim washer
(#28), if any, to be sure it is repositioned properly when
reassembling the miter gear frame assembly (#21). When
reassembling, be sure the set screws go into recess in the
miter gear shafts (#24 & #29), or damage could result. Be
sure clevis end of the driven miter gear shaft (#29) is located
at the same end as the miter gear or the meter will subtract
from the totalizer.
2. DRIVE MITER GEAR ASSEMBLY (#26) can be removed by
loosening the allen head set screw, located on the side of the
gear hub, and pulling the driven magnet and shaft assembly
(#24) out the front of the miter gear frame (#22). Note any
shim washer (#28) that may be positioned behind the drive
miter gear (#26) when removing the shaft (#24).
3. COMPONENTS of the miter gear frame (#22) as well as the
gearbox (#17) should be completely inspected at this point
of disassembly. Each part of the miter gear frame assembly
(#21) should be carefully inspected to determine the origin
of any operational problem and those parts that are damaged
or worn should be replaced. Clean the parts of the unit and
reassemble reversing steps (1) and (2) above.
X.PROPELLER ASSEMBLY (#39) inspection includes cleaning the
ceramic sleeve bearing (#41), separator assembly (#34), drive
magnet (#43), and the propeller assembly (#39).
1. PROPELLER REMOVAL can be accomplished by first remov-
ing the thrust bearing cartridge assembly (#50). Loosen the
set screw (#49) in the side of the nose of the propeller.
Remove the thrust bearing cartridge (#50) by turning it
counterclockwise while holding the propeller in place.
2. REVERSE THRUST BEARING CARTRIDGE (#46) must now
be removed. Turn the propeller (#39) so that the allen wrench
clearance hole is lined up with the set screw in the side of
the reverse thrust bearing cartridge (#46). The location of
the set screw is marked by a small hole drilled in the face
of the reverse thrust bearing cartridge. With a 5/64 inch al-
len wrench, loosen the set screw (#47) in the reverse thrust
bearing cartridge (#46) two to three turns, which will allow
the cartridge to be unscrewed without damaging the spindle
thread. NOTE: If the bearing area appears to be clogged
with dirt or sediment, making it difficult to locate the set
screw (#47) or to allow the allen wrench to fit into the set
screw socket, then the bearing area should be flushed out
with water. Insert Tool T-2402X-1 into the propeller through
the threaded nose. The tabs in the tool should engage in
the screwdriver slot in the end of the reverse thrust bear-
ing cartridge (#46). Remove the propeller assembly (#39)
and reverse thrust bearing cartridge (#46) by turning Tool
T-2402X-1 counterclockwise unscrewing the reverse thrust
bearing cartridge (#46) from the spindle (#35). The propeller
assembly with reverse flow cartridge will now slide off the
spindle. WARNING: If the reverse thrust cartridge does not
unscrew easily, it may be because the set screw was not
unscrewed enough. If unscrewing the reverse flow cartridge
is continued with the set screw binding on spindle thread,
damage to thread could occur.
3. WATER LUBRICATION of the ceramic sleeve bearing (#41) is
achieved by means of two openings in the end of the thrust
bearing cartridge (#50) which allow air to be purged from the
bearing area. These should be cleared of any foreign material
by running a small wire through the holes on either side of
the screwdriver slot.
4. CERAMIC BEARING CARTRIDGE (#41) and drive magnet
(#43) should be cleaned of any foreign material and inspected
for damage. Using a bottle brush, thoroughly clean the ce-
ramic bearing surface (#41) and the magnet inside diameter
(#43). After cleaning the propeller, flush the inside out with
water. The outside surfaces of the propeller should also be
cleaned to assure a smooth, unrestricted flow across the
surface of the propeller. Do not use an oil-based solvent in
cleaning, as damage to the assembly could occur.
5. SPINDLE CERAMIC SLEEVE (#36) and the O.D. or surface
of the separator (#34) should be cleaned and inspected for
any substantial amount of wear. The thrust bearing (#50)
should be checked for any damage. If it is determined that
the spindle ceramic sleeve (#36) or separator (#34) are worn
sufficiently, the separator/support spindle assembly (#34)
should be replaced.
6. SEPARATOR/SUPPORT SPINDLE ASSEMBLY (#34) can
be removed for replacement by removing the four mounting
screws (#37) which thread into the gearbox. Separator o-ring
(#38) should be replaced and the new o-ring (#38) covered
with a thin coat of silicone grease. The separator/support
spindle assembly (#34) can then be replaced in the front
of the gearbox (#17) with a firm push, gently rotating the
assembly at the same time. Replace and tighten the four
mounting screws (#37).
7. PROPELLER INSTALLATION is accomplished by following
these steps: a) The reverse thrust cartridge set screw (#47)
should be protruding out of the reverse thrust bearing cartridge
so it will not bind up on the spindle thread. NOTE: Look
through the end of the propeller and hole in the reverse thrust
cartridge to be sure the set screw is not showing. b) Slide

30119-07 Rev. 2.7/07-09
6
the propeller assembly onto the support spindle (#34) until the
reverse thrust bearing cartridge (#46) contacts the threads on
the end of the spindle (#34). Using Tool T-2402X-1, thread
the reverse thrust bearing cartridge onto the spindle. If you
feel any resistance when threading the reverse thrust cartridge
on, stop at once and check to be sure the set screw is not
binding on the thread. Be careful not to cross-thread the
reverse thrust bearing cartridge. Thread the reverse thrust
bearing cartridge (#46) onto the spindle (#34) until the trail-
ing edge of the propeller contacts the gearbox (#17). Set
the proper end play by inserting a 5/64” allen wrench into
the reverse thrust bearing set screw (through the side of the
propeller) and loosen the reverse thrust bearing cartridge (#46)
1/2 turn counterclockwise. Tighten the set screw in reverse
thrust bearing cartridge. There should be approximately .020”
clearance between the gearbox (#17) and trailing edge of the
propeller when the propeller in pulled forward (away from the
gearbox). The propeller must not contact the gearbox.
8. THRUST BEARING CARTRIDGE ASSEMBLY (#50) should
be inspected for damage and replaced in the nose of the
propeller. The thrust bearing cartridge (#50) is used to adjust
the amount of longitudinal end play of the propeller assembly
on its spindle (#34), which should be about 1/64 inch. End
play can be adjusted by turning the thrust bearing cartridge
assembly (#50) clockwise until it tightens against the end
of the support spindle (#34), then turning thrust bearing
cartridge (#50) counterclockwise 1/8 of a turn. Tighten set
screw (#49). Check the longitudinal end play of the propeller
to ensure it’s not excessive and does not allow the propeller
(#39) to contact the gearbox (#17). Check the clearance
between the propeller (#39) and gearbox (#17). The clear-
ance should be approximately .010” between the gearbox
(#17) and trailing edge of the propeller when the propeller in
pushed back (toward the gearbox). The propeller assembly
(#39) must spin freely.
9. PROPELLER BEARING (#41) can be checked for excessive
radial play by rocking the propeller (#40) gently from side to
side on the spindle (#34). Some play is required for proper
operation of the water lubricated ceramic sleeve bearing.
XI.INSPECTION of all internal meter parts that may be replaced
in the field has been accomplished at this point. Should any
of the meter parts, upon inspection, appear to be damaged
or excessively worn, they must be replaced to assure proper
meter operation and prevent further damage.
XII.REASSEMBLY is necessary at this point. Before reassembling
any parts, make certain that each is cleaned of any dust or
dirt and properly lubricated. Cost for replacement parts not
covered by warranty are available from current parts and price
list. If it is determined that the meter should be returned
for repair, please notify McCrometer prior to shipment. Each
meter must be properly packaged to prevent damage to the
meter in shipment.
1. MITER GEAR FRAME ASSEMBLY (#21) can be replaced
in the back of the gearbox (#17) with a firm push, gently
rotating the assembly at the same time. Replace the miter
gear frame o-ring (#30) and cover the new o-ring with a thin
coat of silicone grease before replacing the assembly (#21).
Make certain that the assembly is installed in a position such
that the drive clevis portion of the driven miter gear shaft
(#29) can accept the driven clevis portion of the vertical shaft
assembly (#14). Secure with four mounting screws (#33).
2. GEARBOX (#17) must be filled with three ounces of 10w
mineral oil. A small funnel or an oil can with a small nozzle
will make filling the gearbox (#17) easier. Pour the oil through
the opening in the top of the meter head (#13).
3. VERTICAL SHAFT ASSEMBLY (#14) should be inserted
gently into the gearbox (#17) through the opening in the top
of the meter head (#13). Rotate the shaft gently until it is
engaged in the driven miter gear shaft (#29) of the miter
gear frame assembly (#21). Replace and secure two screws
(#16) that hold the upper bearing (#15) in place. Do not
overtighten the screws (#16) as this could cock the bearing
(#15) and bind the vertical shaft (#14). Turn the top of the
vertical shaft (#14) to check for any bind or drag. Should
any bind or drag be apparent, it can usually be corrected by
adjusting the vertical shaft collar and bearing assembly (#15).
Loosen the set screw (#45) in the side of the assembly (#15)
and slide the shaft (#14) downward until it rests against the
driven miter gear shaft (#29), then lift up about 1/64 inch.
Tighten set screw (#45).
4. CHANGE GEARS (#11 & #12) should be checked again to
make certain they are in proper alignment. (See step VI-3.)
The gear teeth should be lubricated with a light grease to
assure longer life.
5. INDICATOR-TOTALIZER mechanism (#5) should be placed
on the meter head (#13) with the mounting screws and
shakeproof washers (#6 & #7). The B-driven gear (#12)
should be set in the cutout in the meter head (#13). Do not
tighten mounting screws (#6) until the gear mesh has been
properly adjusted. To adjust gear mesh slide the indicator-
totalizer mechanism (#5) towards the A-drive gear (#11) until
the unit stops because of full gear mesh. Now back off the
indicator-totalizer mechanism 1/64 inch and tighten mounting
screws (#6).
6. BONNET ASSEMBLY (#1) should be cleaned and replaced
over the indicator-totalizer unit (#5) after replacing the desic-
cant bag. Secure four screws (#2) beneath the bonnet lid.
Do not overtighten the mounting screws (#2) as this will
result in damage to the screw o-rings (#3).
7. PROPELLER ASSEMBLY (#39) should be dipped in water
to lubricate the propeller ceramic sleeve bearing (#41). Spin
the propeller (#40) gently to make certain the meter operates
smoothly and no bind or drag is apparent.
8. METER HEAD GASKET (#52) should be inspected for any
sign of damage and replaced if necessary. The meter can now
be installed in the service line. When replacing the meter on
the line, make certain that the top of the welding saddle is
smooth and free of any foreign material. Make certain that
no foreign materials are attached to the inside of the service
line pipe, as any flow disturbance or obstruction may affect
the accuracy of the meter.

30119-07 Rev. 2.7/07-09
7
NOTES

30119-07 Rev. 2.7/07-09
8
NO. QTY. PART NUMBER
DESCRIPTION
1 7-MLI1-* MAIN LINE METER HEAD ASSEMBLY
1 1 5-4337 INDICATOR-TOTALIZER BONNET ASSEMBLY
1 1-4338 INDICATOR-TOTALIZER BONNET LID (W/PIN)
2 4 1-1115-10-56H SCREW, BONNET MOUNTING (ea.)
3 4 1-1551-6 O-RING, BONNET MOUNTING SCREW (ea.)
4 1 1-1551-49 O-RING, BONNET
5 1 5-CN06-2 INDICATOR-TOTALIZER MECHANISM (SPECIFY DIAL)
1 2-4013-‡ DIAL (AS SPECIFIED)
2 1-1113-3-3 SCREW, DIAL MOUNTING (ea.)
1 1-4321 INDICATOR HAND
1 1-4326 TEST HAND
6 2 1-1113-10-6 SCREW, INDICATOR-TOTALIZER MOUNTING (ea.)
7 2 1-1302-10 SHAKEPROOF WASHER, IND-TOT MOUNTING SCREW (ea.)
11A 1 3-2176 A-GEAR ASSEMBLY (5-15 TEETH) (SPEC # OF TEETH)
11B 1 3-2157 A-GEAR ASSEMBLY (16-54 TEETH) (SPEC # OF TEETH)
12 1 3-2163 B-GEAR ASSEMBLY (SPECIFY # OF TEETH)
13A 1 3-2101-24 METER HEAD (24” - 36”)
13B 1 3-2101-42 METER HEAD (42’ - 54”)
14 1 3-2461-* VERTICAL SHAFT ASSEMBLY
15 1 3-2352 VERTICAL SHAFT COLLAR & BEARING ASSEMBLY
16 2 1-1113-6-4 SCREW, VERTICAL SHAFT COLLAR & BEARING MTG. (ea.)
17 1 3-2460-* DROP PIPE & GEARBOX ASSEMBLY
18 1 1-1551-17 O-RING, DROP PIPE
19 8 1-1251-8-16 BOLT, DROP PIPE MOUNTING (ea.)
20 - 1-1806 VIBRA-TITE, DROP PIPE MTG BOLT
21 1 4-2459 MITER GEAR FRAME ASSEMBLY (ITEMS 22 THRU 30)
22 1 2-2459 MITER GEAR FRAME
23 4 1-1504-2 BEARING, MITER GEAR FRAME (ea.)
24 1 3-2458 DRIVEN MAGNET & SHAFT ASSEMBLY
25 1 2-2354 DRIVEN MAGNET SPACER
26 1 3-2349 DRIVE MITER GEAR ASSEMBLY
27 1 3-2137 DRIVEN MITER GEAR ASSEMBLY
28 2 2-2148 SHIM WASHER (ea.)
29 1 2-2138 DRIVEN MITER GEAR SHAFT
30 1 1-1551-2 O-RING, MITER GEAR FRAME
33 4 1-1103-8-7 SCREW, MITER GEAR FRAME MOUNTING (ea.)
34 1 4-2455-2 SEPARATOR/SUPPORT SPINDLE ASSEMBLY
35 1 2-2455-2 SEPARATOR/SUPPORT SPINDLE
36 1 1-1508-20 CERAMIC SLEEVE FOR SUPPORT SPINDLE
37 4 1-1103-8-7 SCREW, SEPARATOR/SPINDLE MOUNTING (ea.)
38 1 1-1551-24 O-RING, SEPARATOR/SPINDLE
39 1 5-2425-14.0 PROPELLER ASSEMBLY (ITEMS 40 THRU 50)
40 1 3-2425-14.0-T PROPELLER
41 1 4-2426-A-1 CERAMIC BEARING CARTRIDGE
42 1 1-1116-8-6 SCREW, CERAMIC BEARING CARTRIDGE MTG.
43 1 1-1601-2 DRIVE MAGNET
44 1 2-2428-‡ DRIVE MAGNET RETAINING PLATE
45 2 1-1115-3-18 SCREW, DRIVE MAGNET RETAINING PLATE (ea.)
46 1 3-2402-2 REVERSE THRUST BEARING CARTRIDGE ASSEMBLY
47 1 1-1101-8-5 SET SCREW,THRUST BEARING
48 2 1-1509-1 CERAMIC THRUST BEARING, 3/16” DIA. (ea.)
49 1 1-1125-6 SET SCREW, NYLON TIP
50 1 3-2356 THRUST BEARING CARTRIDGE ASSEMBLY
51 2 1-1510-1 CERAMIC THRUST BEARING, 1/4” DIA. (ea.)
52A 1 1-1557-14 GASKET, METER HEAD (24”-36”)
52B 1 1-1557-24 GASKET, METER HEAD (42”-54”)
53A 12 1-1253-14-13 BOLT, METER HEAD 1 NC x 3 (24”-36”) (ea.)
53B 20 1-1253-15-17 BOLT, METER HEAD, 1¼” NC x 4” (42”-54”)
54A 12 1-1219 NUT, METER HEAD BOLT, 1 NC (24”-36”) (ea.)
54B 20 1-1223 NUT, METER HEAD BOLT, 1¼” NC (42”-54”)
55A 24 1-1301-12-1 WASHER, METER HEAD BOLT, 1” (24”-36”) (ea.)
55B 40 1-1301-14-1 WASHER, METER HEAD BOLT, 1¼” (42”-54”)
- - 1-1804-2 GEARBOX OIL (16 OZ.)
- 1 10015-00K DESICCANT BAG
24”-54” MAIN LINE METERS
MODELS ML04, ML08, ML12, ML16, ML20, ML22, ML24, MLI1
PARTS LIST
* INSERT METER SIZE TO COMPLETE PART NUMBER
USE -24 FOR 24”; -30 FOR 30”, ETC.
‡ CONSULT FACTORY TO COMPLETE PART NUMBER
When ordering replacement parts,
please specify:
• Meter Size • Meter Model •Meter Serial Number
CONSULT FACTORY FOR PRICING

30119-07 Rev. 2.7/07-09
9
24”-54”MAIN LINE METERS
MODELS ML04, ML08, ML12, ML16, ML20, ML22, ML24, MLI1
* MODEL CN06-2 INDICATOR-TOTALIZER ASSEMBLY
*CERAMIC BEARING CARTRIDGE PROPELLER
* ONE PIECE SEPATATOR/SPINDLE AND THREADED REVERSE THRUST BEARING CARTRIDGE

30119-07 Rev. 2.7/07-09
10
PROPELLER METER TROUBLE SHOOTING FLOW CHART
METER NOT REGISTERING
IS WATER FLOWING?
IS FLOW RATE ABOVE MINIMUM RE-
QUIRED FOR METER?
REMOVE TOTALIZER, IND./TOT.
OR TRANSMITTER. IS VERTICAL
SHAFT TURNING?
REMOVE METER FROM LINE. IS
DEBRIS BLOCKING PROPELLER?
SPIN PROPELLER BY HAND.
DOES VERTICAL SHAFT TURN?
PROBLEM IS IN LOWER PORTION
OF METER. REPAIR PER MFG.
INSTRUCTIONS OR RETURN TO
FACTORY FOR REPAIR.
NO
NO
NO
YES
NO
CORRECT
PROBLEM
NO
CORRECT
PROBLEM
NO
APPLY A LIGHT FINGER PRESSURE TO
VERTICAL SHAFT. IS VERTICAL SHAFT
TURNING NOW?
YES
PROBLEM IS IN TOTALIZER,
IND./TOT. OR TRANSMITTER OR
THEIR CONNECTION TO VERTICAL
SHAFT. REPAIR PER MFG.
INSTRUCTIONS OR RETURN TO
FACTORY FOR REPAIR.
YES NO
REMOVE DEBRIS
FROM LINE
YES
METER NOT READING ACCURATELY
IF METER HAS IND./TOT., TIME
TOTALIZER TEST HAND TO CONFIRM
FLOW RATE READING ON INDICATOR.
IF ALL OF THE ABOVE CHECKS OUT,
RETURN METER TO FACTORY TO BE
ACCURACY TESTED.
YES
METER METER
W/VANES W/O VANES
UPSTREAM 5 dia. 10 dia.
DOWNSTREAM 1 dia. 2 dia.
DOES METER HAVE THE REQUIRED
UPSTREAM & DOWNSTREAM
STRAIGHT RUNS OF PIPE?
IS THERE A FULL
PIPE OF WATER?
YES
IS FLOW RATE ABOVE MINIMUM RE-
QUIRED FOR METER?
YES
NO
CORRECT
PROBLEM
CORRECT
INSTALLATION
NO
NO
CORRECT
INSTALLATION

30119-07 Rev. 2.7/07-09
11
SPECIFICATIONS INDEX
A/B
RATIO
CHANGE GEARS
METER SIZE &
MODEL NO.
REGISTRATION
INDICATOR DIAL
GEARING
REPAIR RECORD
SERIAL NUMBER PURCHASE DATE
ODOMETER READING
NOTES:
DATE REPAIR METER LOCATION COMMENTS

30119-07 Rev. 2.7/07-09
12
WARNING:
BEFORE REMOVING THE METER HEAD FROM THE PIPELINE THE
WATER MUST BE TURNED OFF AND PRESSURE MUST BE RELIEVED
FROM THE LINE. SERIOUS INJURY CAN RESULT FROM REMOVING A
METER HEAD UNDER PRESSURE.
METER SHOULD NOT BE TURNED UPSIDE DOWN AS OIL WILL DRAIN
OUT OF THE GEARBOX AND NOT PROVIDE PROPER LUBRICATION TO
THE MITER GEARS AND BEARINGS.