Water Specialties ML03, ML07, ML11, ML15, ML19 Operation And Maintenance Manual
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2"-20"
MAIN LINE METERS
30119-06 Rev. 2.9/04-06
MODELS
ML03, ML07, ML11, ML15, ML19, ML21, MLT1
OPERATION AND MAINTENANCE MANUAL
PARTS LIST
FEATURING:
*STANDARD TOTALIZER ASSEMBLY
*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
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30119-06 Rev. 2.9/04-06
WARRANTY
This Warranty shall apply to and be limited to the original purchaser consumer of any McCrometer
product. Meters or instruments defective because of faulty material or workmanship will be
repaired or replaced, at the option of Water Specialties, 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 Water Specialties 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
commercial 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.
Copyright © 2006 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.
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30119-06 Rev. 2.9/04-06
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. TOTALIZER ASSEMBLY
1. Bonnet Mounting Screws
2.Totalizer
3. Totalizer Change Gears
4. Totalizer Drive Magnet
VII. GEARBOX
MAIN LINE METER INSTALLATION
I. UNCRATING. When uncrating the meter, any damage
due to rough or improper handling should be reported to
the transportation 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 packaging.
The shipping crate contains the following items:
Main Line Meter Assembly with
Standard Totalizer ............................................ 1
Mounting Equipment as required ....................... -
Operation and Maintenance Manual ................ 1
Tool T-2402X-1 ................................................ 1
II. INSTALLATION of McCrometer Main Line Meters varies
depending 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. Fully opened gate valves, fittings or other
obstructions that tend to set up flow disturbances should
be a minimum of five pipe diameters upstream and one
pipe diameter downstream from the meter.
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 Lubrication
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. Totalizer Drive Magnet Assembly
5. Totalizer Base Cup
6. Bonnet Assembly
7. Propeller Assembly
8. Meter Head O-Ring
2. PLAIN END TUBE METERS can be installed simi-
lar to replacing a short length of plain end pipe in the line
by either welding, or by using one of a variety of pipe
couplings available. Note: Meter head assembly (#13)
should be removed before welding (see step IV). Fully
opened gate valves, fittings, or other obstructions that
tend to set up flow disturbances should be a minimum of
five pipe diameters upstream and one pipe diameter
downstream from the meter.
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.
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30119-06 Rev. 2.9/04-06
D. STRAIGHTENING VANES are recommended when
there are 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)
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 drill holes for vane mounting (9/16" dia. hole
for 4" through 12" meters or 11/16" dia. holes for
14" through 20" meters).
c.) INSERT the vanes into the pipe through the cutout
opening after installing the brass and stainless/rubber washers over the vane bolts. The brass washer
should be installed against the vane bolt head with
the stainless/rubber washer installed against the
brass washer (rubber side away from vane). Position the vanes inside the pipe with the bolts protruding through the vane mounting bolt holes. Place
stainless/rubber washers over each bolt, rubber
against the pipe. The brass washer should be
placed between the stainless/rubber washer and the
vane mounting nut. Secure nuts to hold the vanes
to the pipe (approx. 60 ft./lbs torque). The vanes
can be welded to the pipe, if desired; however, the
washers should not be used. 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 o-ring should be covered with a thin coat
of grease before installing the meter. Tighten the meter
head bolts securely.
MAIN LINE METER
OPERATION AND MAINTENANCE MANUAL
in the unit that may be the cause of abnormal meter
operation.
Routine preventative maintenance should be performed
on all meters, including cleaning and an inspection of the
propeller and 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
(#51) 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 (#38) to clear the inside of the meter saddle and
be lifted free. Inspect the meter head o-ring (#50) 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. Note: Due
to the limited clearance on an 8 inch size meter a different removal procedure is used:
a) Remove the meter head bolts (#51).
b) Lift the meter assembly and tilt it forward.
c) Slide the assembly back out of the saddle opening.
The propeller may have to be rotated in order to fit
through the saddle opening.
V. WORKING AREA chosen for disassembly and reassem-
bly of the internal meter components should be clean to
reduce the chance of dust or dirt particles being introduced into the meter mechanism.
VI. TOTALIZER ASSEMBLY (#4) service procedure should
include cleaning and inspection of the unit noting any
excessive wear on the change gears (#7 & #8) that may
lead to operational problems in the unit.
1. BONNET MOUNTING SCREWS (#3) should be removed and the entire bonnet (#1) lifted off the meter.
2. TOTALIZER is contained within the totalizer bonnet (#1) and held in place by a base cup (#5). It should
not be necessary to remove the totalizer (#4) during inspection; however, removal of the base cup (#5) is necessary for inspection of the totalizer change gears (#7 &
#8). Removal of the base cup (#5) can be accomplished
by inserting a small screwdriver into the two cutouts and
prying upward under the edge.
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 ensure 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
3. TOTALIZER CHANGE GEARS (#7 & #8) should be
inspected for any sign of wear. Both the A-(drive) gear
and B-(driven) gear are attached to the lower portion of
the totalizer assembly (#4). Spin the floating totalizer
driven magnet in the center of the totalizer bottom (#4)
to make certain it spins freely without bind or drag. The
bottom of the totalizer has the letter "A" molded next to
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