English

Original Instructions

Installation, Operation
and Maintenance Instructions

CB Range
sizes 07/14/15

OMMP/016/01
Rev 5 , December 2009
Spares & Service Contact Details

Mono UK
Spares +44 (0)161 214 2380 (direct line 8.15 am – 5.00 pm)
E-mail spares@mono-pumps.com
Service +44 (0)161 214 2390 (direct line 8.15 am – 5.00 pm)
E-mail customerservices@mono-pumps.com
Service +44 (0)161 339 9000 (24 hrs)

Mono Australia
Telephone Facsimile
Melbourne (03) 9580 5211 (03) 9580 9036
Sydney (02) 9521 5611 (02) 9542 3649
Brisbane (07) 3350 4582 (07) 3350 3750
Adelaide (08) 8447 8333 (08) 8447 8373
Perth (08) 9479 0444 (08) 9479 0400
Darwin (08) 8984 3099 (08) 8947 0540
Tasmania 0417 345 814 (03) 6330 2051
E-mail ozsales@mono-pumps.com

Mono New Zealand

Spares & Service +64 (0)9 829 0333
E-mail info@mono-pumps.co.nz

Monoflo USA
Spares & Service +1 713 466 7999
E-mail inquire@monoflo.com

Monoflo South America

Spares & Service +54 4296 8997 +54 4284 0323
E-mail inquire@monoflo.com

Mono China
Telephone Facsimile
Beijing +86 (0) 10 6461 1115 +86 (0) 10 8486 8481
Shanghai +86 (0) 21 5915 7168 +86 (0) 21 5915 6863
E-mail monoshanghai@nov.com

Spares & Service

Issued – April 2008
ATEX Warning Statements

PUMPS AND PUMP UNITS Where there may be a risk of an accumulation of

explosive gases or dust non-sparking tools should be

Where a pump or pump unit is to be installed in a used for installation and maintenance.

potentially explosive atmosphere ensure that this has

been specified at the time of purchase and that the In addition to causing permanent damage to the

equipment has been supplied accordingly and stator, dry running of the pump could generate a rapid

displays an ATEX nameplate or is supplied with a rise in the temperature of the stator tube or barrel,

certificate of conformity. If there is any doubt as to the which could become an ignition source. It is therefore

suitability of the equipment please contact Mono essential that a dry run protection device be fitted.

Pumps Limited before commencing with installation This must shut the pump down immediately should a

and commissioning. dry run situation occur. Details of suitable devices are
available from Mono Pumps Limited.

Process liquids or fluids should be kept within

specified temperature limits otherwise the surface of To minimise the risk of sparking or temperature rises

pump or system components may become an ignition due to mechanical or electrical overload the following

source due to temperature rises. Where the process control and safety devices should be fitted in addition

liquid temperature is less that 90ºC the maximum to a dry run protection system. A pressure relief

surface temperature will not exceed 90ºC provided system whereby the pump can not generate

the pump is installed, operated and maintained in pressures in excess of the maximum rated pressure

accordance with this manual. Where the process fluid or an over pressure device which should shut the

temperature exceeds 90ºC the maximum surface pump down when the maximum discharge pressure is

temperature will be equal to the maximum process exceeded. A control system that will shut the pump

fluid temperature. down if the motor current or temperature exceed

specified limits. An isolator switch that will disconnect

Cavities that could allow the accumulation of all electrical supply to the motor and ancillary

explosive gases, such as under guards, should where electrical equipment and be capable of being locked

possible, be designed out of the system. Where this is in the off position. All control and safety devices

not possible they should be fully purged before any should be fitted, operated and maintained in

work is carried out on the pump or system. accordance with the manufacturer’s instructions. All
valves on the system should be open when the pump
is started otherwise serious mechanical overload and
Electrical installation and maintenance work should
failure may result.
only be carried out by suitably qualified and
competent persons and must be in accordance with
relevant electrical regulations. It is important that the pump rotates in the direction
indicated on the nameplate. This must be checked on
installation and commissioning and after any
All electrical equipment, including control and safety
maintenance has been carried out. Failure to observe
devices, should be suitably rated for the environment
this may lead to dry running or mechanical or
in to which they are installed.
electrical overload.

ATEX - Page 1 of 2
Issued – February 2004
Reference - OMMP/028/01/R1
ATEX Warning Statements

When fitting drives, couplings, belts, pulleys and The use of replacement parts that are not
guards to a pump or pump unit it is essential that manufactured by or approved by Mono Pumps Limited
these are correctly fitted, aligned and adjusted in may affect the safe operation of the pump and it may
accordance with the manufacturer’s instructions. therefore become a safety hazard to both operators
Failure to do so may result in sparking due to and other equipment. In these circumstances the
unintended mechanical contact or temperature rises Declaration provided will become invalid. The
due to mechanical or electrical overload or slipping of guarantee referenced on the Terms and Conditions of
drive belts. Regular inspection of these parts must be Sale will also be invalidated.
carried out to ensure they are in good condition and
replacement of any suspect part must be carried out
immediately.

Mechanical seals should be suitably rated for the

environment. The seal and any associated
equipment, such as a flushing system, must be
installed, operated and maintained in accordance with
the manufacturer’s instructions.

Where a packed gland seal is fitted this must be

correctly fitted and adjusted. This type of seal relies
on the process liquid to cool the shaft and packing
rings so a constant drip of liquid from the gland
section is required. Where this is undesirable an
alternative seal type should be fitted.

Failure to operate or maintain the pump and ancillary

equipment in line with the manufacturer’s instructions
may lead to premature and potentially dangerous
failure of components. Regular inspection, and where
necessary replacement, of bearings and lubrication is
essential.

The pump and its components have been designed to

ensure safe operation within the guidelines covered
by legislation. Accordingly Mono Pumps Limited have
declared the machine safe to use for the duty
specified as defined by the Declaration of
Incorporation or Conformity that is issued with this
instruction manual.

ATEX - Page 2 of 2
Issued – February 2004
Reference - OMMP/028/01/R1
Index

SECTION 1 INSTALLATION

START-UP PROCEDURE

ASSEMBLY AND DISMANTLING ADVICE

SECTION 2 FAULT FINDING

SECTION 3 DRAWING REFERENCE NUMBERS

PUMP CODING SHEET

SECTION 4 DISMANTLING AND ASSEMBLY DIAGRAMS

EXPLODED VIEWS

SECTION 5 TORQUE TIGHTENING FIGURES

EC Declaration as defined by Machinery Directive 2006/42/EC.

The following harmonised standards are applicable: BS EN 809, BS EN ISO 12100 Parts 1 & 2

EC Declaration of Incorporation EC Declaration of Conformity

This declaration is only valid when partly completed This declaration is not valid for partly completed machinery
machinery has been supplied. has been supplied.

In this case, the machinery meets the requirements of the In this case the machinery meets the requirements of the
said directive and is intended for incorporation into other said directive including any amendments which are valid at
machinery or for assembly with other machinery in order the time of supply.
to constitute relevant machinery as defined by the said
directive including any amendments, which are valid at the We further declare that, where applicable, said machinery also
time of supply. meets the requirements of:

The EMC Directive 2004/108/EC

IMPORTANT The Low Voltage Directive 2006 /95/E
This machinery must not be put into service until the The Pressure Equipment Directive 97/23/EC
relevant machinery into which it is to be incorporated has The Outdoor Noise Directive 2005/88/EC
been declared in conformity to the said directive. The Drinking Water Directive 99/83/EC

This declaration is only valid when the machinery has IMPORTANT

been installed, operated and maintained in accordance This declaration is only valid when the machinery has been
with these instructions and safety guidelines contained installed, operated and maintained in accordance with these
within as well as instructions supplied for equipment instructions and safety guidelines contained within as well
assembled with or intended for use with this equipment. as instructions supplied for equipment assembled with or
intended for use with this equipment.

Mr C. Q. Griffiths - Engineering Services Manager.

for Mono Pumps Limited, Martin Street, Audenshaw,
Manchester England, M34 5JA

Index
Issued – December 2009
Installation, Operation & Maintenance Instructions
INSTALLATION Normally 'P' range pumps will be designed with a
sole plate that will be bolted to the customers
1.1 INSTALLATION AND SAFETY framework.
RECOMMENDATIONS
If the pump is to be mounted in any way other than
In common with other items of process plant a pump described above, confirmation of the installation
must be installed correctly to ensure satisfactory and must be agreed with Mono Pumps Limited. All the
safe operation. The pump must also be maintained pipework should be independently supported.
to a suitable standard. Following these
recommendations will ensure that the safety of 1.3.1 HANDLING
personnel and satisfactory operation of the pump is
achieved. During installation and maintenance, attention must
be paid to the safe handling of all items. Where a
1.2.1. GENERAL
pump or its components weigh in excess of 20 kg
When handling harmful or objectionable materials, (45lb) it is recommended that suitable lifting tackle
adequate ventilation must be provided in order to should be used to ensure that personal injury or
disperse dangerous concentrations of vapours. It is damage to components does not occur.
recommended that wherever possible, Mono pumps
should be installed with provision for adequate For safe handling of both bareshaft pumps and
lighting, thus ensuring that effective maintenance pump units (pump/ gearbox/motor etc.) slings should
can be carried out in satisfactory conditions. With be used. The position of the slings will depend upon
certain product materials, a hosing down facility with the specific pump/unit construction and should be
adequate draining will simplify maintenance and carried out by personnel with the relevant
prolong the life of pump components. experience to ensure that the pump is not damaged
Pumps operating on high temperature duties and injury to personnel does not occur.
should be allowed to cool sufficiently before any
maintenance is carried out. If eyebolts do exist then these should only be used
for lifting the individual components for which they
1.2.2. SYSTEM DESIGN & INSTALLATION are supplied.

At the system design stage, consideration must be 1.3.2 STORAGE AND INFREQUENT OPERATION
given to provision of filler plugs, and the installation
of non-return and/or isolating valves. Pumps cannot The situation where a pump is used infrequently is
be reliably used as non-return valves. Pumps in also covered by the instructions in this section.
parallel and those with high static discharge head
must be fitted with non-return valves. SHORT TERM STORAGE

The pumps must also be protected by suitable Where a pump has to be stored for 6 months or
devices against over pressure and dry running. less then the following steps are advised:-

i. HORIZONTAL MOUNTING 1. Store pump inside wherever possible or if this is not

feasible then provide protective covering. Do not
All ranges excluding P Range Mono pumps are allow moisture to collect around the pump.
normally installed in a horizontal position with
baseplates mounted on a flat surface, grouted in 2. Remove the drain plug, if fitted. Any inspection
and bolted, thus ensuring firm fixing and a reduction plates fitted should also be removed to ensure that
in noise and vibration. the suction housing can drain and dry completely.

The unit should be checked after bolting down to 3. Loosen the packed gland and inject sufficient grease
ensure that the alignment of the pump to its prime into the stuffing box. Tighten the gland nut hand
mover is correct. tight. If a water flush system is to be used do not
grease, a small amount of light oil is recommended
ii. VERTICAL MOUNTING for these.

P Range Pumps Only

4. See Manufacturers Instructions for
The P range pumps are intended for vertical motor/gearbox/drive instructions for storage
installation. Care must be taken when lifting the procedures.
pump into the vertical position.

Section 1, Page 1
Issued – October 2009
Installation, Operation & Maintenance Instructions

LONG TERM STORAGE When both are installed it is advised that the relief
valve is positioned closer to the pump than the non-
If the pump is to be kept in storage for more than return valve.
six months then in addition to the above the
following procedures should be carried out IMPORTANT
regularly (every 2 - 3 weeks if possible):
The pump must never run against a closed inlet
1. If practicable rotate the pump at least three quarters or outlet valve, as this could result in
of one revolution to avoid the rotor setting in the mechanical failure.
stator.
1.6 GENERAL SAFETY
2. Note, however, that the pump is not to be rotated for
more than two revolutions each time because GREAT CARE MUST BE TAKEN TO PROTECT
damage could be caused to the rotor/ stator ALL ELECTRICAL EQUIPMENT FROM
elements. SPLASHING WHEN HOSING DOWN. WHERE
MONO PUMPS LIMITED HAVE SUPPLIED A
IMMEDIATELY PRIOR TO INSTALLATION AND BARESHAFT PUMP THE ONUS IS ON THE USER
STARTING TO FIT ADEQUATE GUARDS IN COMPLIANCE
WITH THE REQUIREMENTS OF THE RELEVANT
Before installing the pump please ensure that all REGULATIONS.
plugs and inspection plates are replaced and
that excess grease/oil is removed from the All nuts and bolts, securing flanges and base
stuffing box. mounting fixtures must be checked for tightness
before operation. To eliminate vibration, the pump
1.4 ELECTRICAL must be correctly aligned with the drive unit, and all
guards must be securely fixed in position. When
Electrical connection should only be made using commissioning the plant, all joints in the system
equipment suitable for both rating and environment. must be checked thoroughly for leakage.
Where any doubts exist regarding the suitability of
equipment, Mono Pumps Limited, should be If, when starting, the pump does not appear to
consulted before proceeding. Normally the Mono operate correctly (see 2), the plant must be shut
pump should be installed with starting equipment down immediately and the cause of the malfunction
arranged to give direct on line starting. established before operations are recommenced. It
is recommended that depending upon plant system
Earthing points will be provided on electric drives (if operation, either a combined vacuum and pressure
supplied) and it is essential that these are correctly gauge, or a vacuum gauge only be fitted to the
connected. When the motor is being wired and pump inlet port, and a pressure gauge fitted to the
checked for rotation, the start/stop sequence must outlet port, these will then continuously monitor the
be instantaneous to prevent dry running (see 2) or pump operating conditions. May contain substances
pressurising upstream equipment. (Check direction from the ECHA SVHC Candidates List
arrow on pump nameplate). The electrical (REACH - Regulation (EC) No. 1907/2006)
installation should include appropriate isolating
equipment to ensure that the pump unit is safe to 1.7 DUTY CONDITIONS
work on.
Pumps should only be installed on duties for which
1.5 PRESSURE RELIEF VALVES AND NON-RETURN Mono Pumps Limited have specified the materials of
VALVES construction, flow rates, pressure, temperature,
speed etc. Where dangerous materials are to be
1. It is recommended that a suitable safety device is pumped, consideration must be given to the safe
installed on the discharge side of the pump to discharge from relief valves, gland drains etc.
prevent over-pressurisation of the system. IF THE DUTY SHOULD BE CHANGED, MONO
PUMPS LIMITED SHOULD BE CONTACTED AND
2. It is also recommended that a non-return valve is THEIR RECOMMENDATIONS SOUGHT IN THE
installed on the discharge side of the pump to INTEREST OF APPLICATION, SAFETY OF
prevent reverse flow through the system. PLANT, EFFICIENCY AND PUMP LIFE.

Section 1, Page 2
Issued – September 2009
Installation, Operation & Maintenance Instructions

2. START-UP PROCEDURE 2.3.1. GLAND PACKING

Pumps must be filled with liquid before starting. The Where a pump is supplied fitted with gland packing
initial filling is not for priming purposes, but to (manufactured from a non-asbestos material), the
provide the necessary lubrication of the stator until gland will require adjustment during the initial
the pump primes itself. When the pump is stopped, running in period. Newly packed glands must be
sufficient liquid will normally be trapped in the allowed to r un-in with only finger tight compression
rotor/stator assembly to provide lubrication upon re- on the gland follower nuts. This should continue for
starting. about 3 days. The gland follower should be
gradually tightened over the next week to achieve a
If, however, the pump has been left standing for an leakage rate as shown in the table below. Gland
appreciable time, moved to a new location, or has followers should be adjusted at regular intervals to
been dismantled and re-assembled, it must be maintain the recommended leakage flow rate.
refilled with liquid and given a few turns before Under normal working conditions a slight drip from
starting. The pump is normally somewhat stiff to the gland under pressure assists in cooling and
turn by hand owing to the close rotor/stator fit. lubricating the packing. A correctly adjusted
However, this stiffness disappears when the pump is gland will always have small leakage of fluid.
running normally against pressure.
Typical Leakage Rates from Packed Glands
2.1 DRY RUNNING
Up to 50mm shaft diameter 2 drops per minute
NEVER RUN THE PUMP IN A DRY CONDITION 50 … 75mm shaft diameter 3 drops per minute
EVEN FOR A FEW REVOLUTIONS OR THE 75 … 100mm shaft diameter 4 drops per minute
STATOR WILL BE DAMAGED IMMEDIATELY. 100 … 125mm shaft diameter 5 drops per minute
CONTINUAL DRY RUNNING COULD PRODUCE 125 … 160mm shaft diameter 6 drops per minute
SOME HARMFUL OR DAMAGING EFFECTS.
A gland drip is, however, undesirable when handling
2.2 PUMP ROTATION DETAILS corrosive, degreasing, or abrasive materials. Under
these conditions the gland must be tightened the
PUMP RANGE BI-DIRECTIONAL COMMENT
minimum amount whilst the pump is running to
E Yes † ensure satisfactory sealing when under pressure, or
Monobloc B Yes † to stop entry of air when under suction conditions.
Merlin Industrial Yes †
S, SL Yes †
LF Yes † The gland leakage of toxic, corrosive or hazardous
W No ** liquids can cause problems of compatibility with the
Merlin Widethroat No ** pumps materials of construction.
MM ML No *
MS No **
G No * Provision of a gland drain should be considered,
CB/SB No * especially for the leakage of hazardous products.
Placer No **
Grout Injection No **
P No * CARE IS REQUIRED WHEN ADJUSTING THE
CP0011 No ** GLAND WHILST PUMP IS RUNNING.
CP0025,CP0800,CP1600 No *

* Clockwise when viewed from drive end. 2.3.2 MECHANICAL SEALS - ALL PUMPS
** Anti-clockwise when viewed from drive end.
† Anti-clockwise gives inlet at drive end. When a mechanical seal is fitted to the pump it may
be necessary to provide a barrier fluid to some part
DIRECTIONS OF ROTATION of the seal. This should be provided in line with the
seal manufacturers instructions.
BEFORE THE DIRECTION OF ROTATION IS
CHANGED, MONO PUMPS LIMITED MUST BE 2.4. GUARDS
CONSULTED SO THAT THE SUITABILITY OF
THE PUMP CAN BE CONFIRMED WHEN In the interests of safety, and in accordance with the
OPERATING ON THE NEW DUTY. U.K. Health and Safety at Work Act 1974, all guards
must be replaced after necessary adjustments have
been made to the pump.

Section 1, Page 3
Issued – December 2002
Installation, Operation & Maintenance Instructions
2.5 WARNING/CONTROL DEVICE BP LC2 / Mobilgrease XHP 222 or their equivalent
must be used for replenishment.
Prior to operating the pump, if any warning or control
devices are fitted these must be set in accordance 2.9 PUMP UNITS
with their specific instructions.
Where a pump unit is dismantled and re-assembled,
2.6 PUMP OPERATING TEMPERATURE consideration must be given to ensure that where
appropriate the following steps are covered.
The range of temperatures the pump surfaces will
develop is dependent upon factors such as product 1. Correct alignment of pump/gearbox
temperature and ambient temperature of the 2. Use of appropriate couplings & bushes
installation. There may be instances where the 3. Use of appropriate belts & pulleys correctly
external pump surface can exceed 50oC. tensioned.

In these instances, personnel must be made aware 2.10 CLEANING PRIOR TO OPERATION
of this and suitable warnings/guarding used.
i. Non Food Use
2.7 NOISE LEVELS
During the commissioning of a new pump or
1. The sound pressure level should not exceed 85dB recommissioning of an overhauled pump, it is
at one metre distance from the pump. advisable to clean the pump prior to the initial
operation of the pump in the process.

ii. Food Use

2. This is based on a typical installation and does not
necessarily include noise from other sources or
When a pump has been supplied for a food
any contribution from building reverberation or
installation pipework application, it is important to ensure that the pump is
clean prior to initial operation of the pump.

Therefore, it is important that a clean-in-place

3. It is recommended the actual pump unit noise treatment is executed on the pump at the following
levels are ascertained once the unit is installed and times:-
running at duty conditions
1. When the pump is first commissioned for use.

2. When any spare components are fitted into the

2.8 LUBRICATION
wetted area of the pump.
Pumps fitted with bearings should be inspected
A recommended CIP procedure is as follows:
periodically to see if grease replenishment is
necessary, and if so, grease should be added until
This procedure should not be used on the CP
the chambers at the ends of the bearing spacer are
Pump Range. Please consult our application
approximately one third full.
engineers for a suitable procedure.
Periodic bearing inspection is necessary to maintain
Caustic Wash
optimum bearing performance. The most expedient
LQ94 ex Lever Diversey or equivalent
time to inspect is during periods of regular
2% concentration
scheduled equipment downtime - for routine
maintenance or for any other reason.
Acid Wash
P3 Horolith 617 ex Henkel
Under tropical or other arduous conditions, however,
Ecolab or equivalent 1% concentration
a more frequent examination may be necessary. It
is therefore advisable to establish a correct
Procedure
maintenance schedule or periodic inspection.
1. Caustic wash @ 75°C for 20 mins
2. Water rinse @ 80°C for 20 mins

Section 1, Page 4
Issued – August 2009
Installation, Operation & Maintenance Instructions
3. Acid wash @ 50°C for 20 mins 2.13 ACCESS PORTS
4. Water rinse @ 80°C for 20 mins
Where access ports are fitted then the following
CIP flow rates (hence pump speeds) should be steps must be followed prior to removal:
maximised to achieve highest level of cleanability.
1. Pump must be shut down and the electrical supply
A C.I.P. liquid velocity of 1.5 to 2.0 m/s is required isolated.
for removal of solids and soiling.
2. Protective clothing should be worn, especially if the
Pumps fitted with CIP by pass ports will permit pumped product is obnoxious.
higher flow rates without the need to increase pump
speed. 3. Remove access plate with care utilising where
possible drip trays to collect product leakage.
The use of neat active caustic
and acid chemicals is not Access ports are included to assist in removing
recommended. Proprietary cleaning blockages and to allow a visual check on the
agents should be used in line with manufacturers components within the suction chamber.
instructions.
It is not to be considered as an additional method in
All seals and gaskets should be dismantling the pump.
replaced with new if disturbed
during maintenance. Re-assembly of the plate should be completed using
new gaskets prior to the pump being switched on.
Pump internals should be regularly inspected to
ensure hygienic integrity is maintained, especially 2.14 ADJUSTABLE STATORS
with respect to elastomeric components and seals,
and replaced if necessary. If adjustable stators are fitted then the following
steps must be followed for adjusting the clamping
The four stages constitute one cycle and we devices.
recommend that this cycle is used to clean the pump
before use on food. The adjustable stator assembly is designed to give
an even compression around the stator
Once the pump has been commissioned, the circumference. It is designed to be used when
cleaning process will depend upon the application. pump performance reduces through wear to an
The user must therefore ensure that their cleaning unacceptable level, to restore the required flow rate.
procedures are suitable for the duty for which the
pump has been purchased. The stator compression is increased using the
following steps:-
2.11 WIDETHROAT PUMPS
1. Release the six locking screws half a turn.
Specific pumps may have auger feed screws, with
2. Tighten the eight clamp screws until adjustment
or without a bridge breaker system to feed the
allowed by releasing the lock screws has been taken
pumping element. If the pump installation requires
up.
that these cannot be enclosed, care must be taken
to ensure personnel cannot gain access whilst the 3. Repeat steps 1 and 2 until the pump performance
pump is operating. If this is not possible an has been restored to its former level.
emergency stop device must be fitted nearby.
NOTE
2.12 EXPLOSIVE PRODUCTS/ HAZARDOUS
ATMOSPHERES It is imperative that when adjusting the stator that
only sufficient pressure is placed on the stator to
In certain instances the product being pumped may enable the capacity of the pump to be reinstated.
well be of a hazardous nature.
Over tightening of the stator could easily result in
In these installations consideration must be given to damage to the driver by overload and so extreme
provide suitable protection and appropriate warnings care must be taken when carrying out these
to safeguard personnel and plant. adjustments.

Section 1, Page 5
Issued – December 2002
Installation, Operation & Maintenance Instructions

It is therefore advisable to make the adjustment 2.15.4 FLEXISHAFT DRIVE PUMPS

while the pump is running and power readings can
be monitored. With this design there are no wearing items to
replace in the drive train, however, if during routine
REMOVAL OF ADJUSTABLE STATOR inspection the shaft is visibly damaged / distorted
or the protective coating is damaged, then this item
The procedure for removal of an adjustable stator is should be replaced to avoid unexpected
the same as that of a standard one, except it is breakdowns.
necessary to remove the clamp plates before the
stator can be twisted off the rotor. 2.16 MECHANICAL SPEED VARIATORS

This can be done by undoing the clamp screws; Refer to the manufacturers instructions.
then releasing the clamp plate by using the locking
screws as jacking screws to remove the clamp These machines require regular maintenance, which
plates. typically includes weekly adjustment through the full
speed range.
Re-assembly will be done using the reverse
procedure. 3.0 ASSEMBLY AND DISMANTLING

2.15 MAINTENANCE OF WEARING COMPONENTS Section 4 contains the steps to dismantle and
re-assemble the pump. All fastenings must be
2.15.1 ROTOR AND STATOR tightened securely and when identified the
appropriate torque figures should be used.
The wear rate on these components is dependent
on many factors, such as product abrasivity, speed, 3.1 USE OF ITEMS NOT APPROVED OR
pressure etc. MANUFACTURED BY MONO PUMPS LIMITED

When pump performance has reduced to an The pump and its components have been designed
unacceptable level one or possibly both items will to ensure that the pump will operate safely within the
need replacing. guidelines covered by the legislation.

2.15.2 DRIVE SHAFT - PACKED GLAND As a consequence Mono Pumps Limited have
declared the machine safe to use for the duty
The wear rate of the gland area is dependent on specified as defined by the Declaration of
many factors such as product abrasivity and speed. Incorporation or Conformity that is issued with this
Regular gland maintenance will maximise the life of Instruction Manual.
the shaft. Replacement of both the gland packing
and shaft will be necessary when shaft sealing The use of replacement items that are not approved
becomes difficult to achieve. by or manufactured by Mono Pumps Limited may
affect the safe operation of the pump and it may
2.15.3 COUPLING ROD JOINTS therefore become a safety hazard to both operators
and other equipment. In these instances the
Regular maintenance and lubrication will maximise Declaration provided will therefore become invalid.
life of the joints. The guarantee referenced in the Terms and
Conditions of Sale will also be invalidated if
Replacement of one or both joint assemblies and replacement items are used that are not approved or
possibly the coupling rod may be necessary when manufactured by Mono Pumps Limited.
wear is apparent.
DISPOSAL OF WORN COMPONENTS
It is essential to replace all the joint items with
genuine Mono parts to ensure maximum life. When replacing wearing parts, please ensure
disposal of used parts is carried out in compliance
with local environmental legislation. Particular care
should be taken when disposing of lubricants.

Section 1, Page 6
Issued – December 2002
Installation, Operation & Maintenance Instructions

3.2 RECOMMENDED LIFTING POINTS

120°
CHOKE MAX CHOKE

120°
MAX
CHOKE CHOKE

CHOKE 120° CHOKE

MAX

120°
MAX

CHOKE CHOKE

Section 1, Page 7
Issued – August 2009
Installation, Operation & Maintenance Instructions

3.3 PUMP AND WEAR PARTS WEIGHTS.

NOTE: Weights are for guidence purpose only. Please refer to the documetation
issued with your pump or spares.

CB/SB Range
Pump Weight (kg)
Model
Bare Shaft Motorised
CB14/15 15 30

All wear parts are less than 5kg

Section 1, Page 8
Issued – October 2009
Diagnostic Chart

SYMPTOMS POSSIBLE CAUSES

1. NO DISCHARGE 1. 2. 3. 7. 26. 28. 29.
2. LOSS OF CAPACITY 3. 4. 5. 6. 7. 8. 9. 10. 22. 13. 16. 17. 21. 22. 23. 29
3. IRREGULAR DISCHARGE 3. 4. 5. 6. 7. 8. 13. 15. 29.
4. PRIMING LOST AFTER START 3. 4. 5. 6. 7. 8. 13. 15
5. PUMP STALLS AT START UP 8. 11. 24.
6. PUMP OVERHEATS 8. 9. 11. 12. 18. 20
7. MOTOR OVERHEATS 8. 11. 12. 15. 18. 20.
8. EXCESSIVE POWER ABSORBED BY PUMP 8. 11. 12. 15. 18. 20
9. NOISE AND VIBRATION 3. 4. 5. 6. 7. 8. 9. 11. 13. 15. 18. 19. 20. 22. 23. 27. 31
10. PUMP ELEMENT WEAR 9. 11.
11. EXCESSIVE GLAND OR SEAL WEAR 12. 14. 25. 30.
12. GLAND LEAKAGE 13. 14.
13. SEIZURE 9. 11. 12. 20.
LIST OF CAUSES REMEDIAL ACTIONS
1. INCORRECT DIRECTION OF ROTATION 1. REVERSE MOTOR
2. PUMP UNPRIMED 2. BLEED SYSTEM OF AIR/GAS
3. INSUFFICIENT N.P.S.H. AVAILABLE 3. INCREASE SUCTION HEAD OR REDUCE SPEED/TEMP.
4. PRODUCT VAPORISING IN SUPPLY LINE 4. INCREASE N.P.S.H. AVAILABLE (SEE 3 ABOVE)
5. AIR ENTERING SUPPLY LINE 5. CHECK PIPE JOINTS/GLAND ADJUSTMENT
6. INSUFFICIENT HEAD ABOVE SUPPLY VESSEL OUTLET 6. RAISE VESSEL/INCREASE PIPE SIZE
7. FOOTVALVE/STRAINER OBSTRUCTED OR BLOCKED 7. CLEAN OUT SUCTION LINE/VALVES
8. PRODUCT VISCOSITY ABOVE RATED FIGURE 8. DECREASE PUMP SPEED/INCREASE TEMP.
9. PRODUCT TEMP. ABOVE RATED FIGURE 9. COOL THE PRODUCT
10. PRODUCT VISCOSITY BELOW RATED FIGURE 10. INCREASE PUMP SPEED/REDUCE TEMP.
11. DELIVERY PRESSURE ABOVE RATED FIGURE 11. CHECK FOR BLOCKAGES IN DELIVERY LINE
12. GLAND OVERTIGHT 12. ADJUST GLAND SEE O&M INSTRUCTIONS
13. GLAND UNDERTIGHT 13. ADJUST GLAND SEE O&M INSTRUCTIONS
14. GLAND FLUSHING INADEQUATE 14. CHECK FLUID FLOWS FREELY INTO GLAND
15. PUMP SPEED ABOVE RATED FIGURE 15. DECREASE PUMP SPEED
16. PUMP SPEED BELOW RATED FIGURE 16. INCREASE PUMP SPEED
17. BELT DRIVE SLIPPING 17. RE-TENSION BELTS
18. COUPLING MISALIGNED 18. CHECK AND ADJUST ALIGNMENT
19. INSECURE PUMP/DRIVE MOUNTING 19. CHECK AND TIGHTEN ALL PUMP MOUNTINGS
20. SHAFT BEARING WEAR/FAILURE 20. REPLACE BEARINGS
21. WORN PUMP ELEMENT 21. FIT NEW PARTS
22. RELIEF VALVE CHATTER 22. CHECK CONDITION OF VALVE/RENEW
23. R.V. INCORRECTLY SET 23. RE-ADJUST SPRING COMPRESSION
24. LOW VOLTAGE 24. CHECK VOLTAGE/WIRING SIZES
25. PRODUCT ENTERING PACKING AREA 25. CHECK PACKING CONDITION AND TYPE
26. DRIVE TRAIN BREAKAGE 26. CHECK AND REPLACE BROKEN COMPONENTS
27. NEGATIVE OR VERY LOW DELIVERY HEAD 27. CLOSE DELIVERY VALVE SLIGHTLY
28. DISCHARGE BLOCKED/VALVE CLOSED 28. REVERSE PUMP/RELIEVE PRESSURE/CLEAR BLOCKAGES
29. STATOR TURNING 29. REPLACE WORN PARTS/TIGHTEN UP STATOR BOLTS
30. STUFFING BOX 'EATS' PACKING 30. CHECK FOR WORN SHAFT AND REPLACE
31. VEE BELTS 31. CHECK AND ADJUST TENSION OR REPLACE

Section 2, Page 1
Issued – December 2000
Drawing Reference Numbers

DRG. DESCRIPTION
REF

06A NAMEPLATE
10A MECHANICAL SEAL
15A THROWER GUARD
21A BARREL
22A STATOR
24A END COVER
25A ROTOR
26A COUPLING
31A WASHER
32A SHAFT
65A GLAND SECTION
95A TIE ROD

P101 SEAL
P102 CAP SCREW
P103 CAP SCREW
P104 HEXAGON NUT
P105 WASHER
P106 WASHER
P107 HEXAGON NUT
P108 WASHER
P109 WASHER
P110 CAP SCREW
P111 WASHER
P112 DRIVE SCREW
P113 WASHER
P114 DRIVE SCREW

IMPORTANT NOTE

THE DRAWING REFERENCES SHOWN GIVE THE DESCRIPTION OF ALL THE PARTS DETAILED ON THE SECTIONAL
DRAWINGS IN THIS SECTION OF THE BOOK. THEREFORE SOME OF THE REFERENCES MAY NOT BE SHOWN ON
ANY ONE.

Section 3, Page 1
Issued – December 2000
Pump Coding

STD.
BASIC PUMP CODE
VARIATION
FEATURES DESCRIPTION
1 2 3 4 5 6 / 8 9 10

Cast Iron C
BODY
MATERIALS
Stainless Steel S

Low flow, low pressure, balanced stator,

RANGE flexible coupling design. Suction and B
delivery ½" B.S.P. (female)

0.11 m³/h (110 l/h) @ 2850 rev/min 0 7

NOMINAL
CAPACITY AT
0.16 m³/h (160 l/h) @ 1450 rev/min 1 4
MAX. SPEED AND
ZERO PRESSURE
0.60 m³/h (600 l/h) @ 2850 rev/min 1 5

STATOR MATERIAL RB, RR, RV, RW R

ROTATING PARTS 5, 8 8

Stainless Steel. B15 pump with Grade R

TYPICAL BASIC
S B 1 5 R 8
PUMP CODING
(Nitrile) stator, HCP rotor and shaft

‘H’ Home (SB pumps only)

MARKET
‘G’ Close coupled drive supplied (CB pumps only) C B 1 4 R 5 / G
VARIATIONS
‘X’ Close coupled drive not supplied (CB pumps only)

FULL PUMP CODE TO BE STAMPED ON PUMP NAMEPLATE

Section 3, Page 2
Issued – November 2004
Dismantling & Assembly Diagrams

DISCHARGE
PORT
CB RANGE

SUCTION
PORT

Section 4, Page 1
Issued – August 2004
Dismantling & Assembly Diagrams
Dis mantling P roc edure

Section 4, Page 2
Issued – August 2004
Dismantling & Assembly Diagrams

Section 4, Page 3
Issued – August 2004
Dismantling & Assembly Diagrams

4
c
250º
B 07 ONL Y

Section 4, Page 4
Issued – July 2005
Dismantling & Assembly Diagrams

4
c
250º
B 14/15 ONL Y

Section 4, Page 5
Issued – July 2005
Dismantling & Assembly Diagrams

Section 4, Page 6
Issued – December 2000
Dismantling & Assembly Diagrams

c
250º
6

Section 4, Page 7
Issued – July 2005
Dismantling & Assembly Diagrams

Section 4, Page 8
Issued – August 2000
Dismantling & Assembly Diagrams
Re-assembly Procedure

Section 4, Page 9
Issued – December 2000
Dismantling & Assembly Diagrams

RS494-124
LOCTITE 648
9

Section 4, Page 10
Issued – July 2005
Dismantling & Assembly Diagrams

10

Section 4, Page 11
Issued – December 2000
Dismantling & Assembly Diagrams

12
LOCTITE 648
11
B07 ONLY

Section 4, Page 12
Issued – July 2005
Dismantling & Assembly Diagrams

12
LOCTITE 648
B14/15 ONLY

11

Section 4, Page 13
Issued – July 2005
Dismantling & Assembly Diagrams

13

Section 4, Page 14
Issued – August 2004
Dismantling & Assembly Diagrams

14

Section 4, Page 15
Issued – August 2004
 CB07/CB14/CB15

21A

Section 4, Page 16
Issued – August 2004
P108

P109
P103
????
22A P114
Exploded Views

P113
24A P107
P102

32A

65A

95A

P112
P113

P114

31A
P105
26A

06A
P106 P111
31A
P104 P101
10A
P110
25A
Torque Tigtening Figures

ITEM
PUMP SIZE
ALL
P102 P103 P104 P107 P110

Nm 4 4 7 7 4

Note: Torque tolerances are +/-5% of stated nominal figures.

Section 5, Page 1
Issued – December 2000
 UK and Europe

Mono Pumps Ltd, Martin Street, Audenshaw

Manchester, M34 5JA, England
T. +44 (0)161 339 9000
E. info@mono-pumps.com

Americas

NOV Monoflo, 9606 Kirkton

Houston, Texas 770495, USA
T. +1 281 200 1200
E. inquire@mono o.com

Monoflo SA

Ing. Huergo 2239 - B1842GGW

Monte Grande
Buenos Aires
Argentina
T. +54 4296 8997
F. +54 4284 0323
E. inquire@monoflo.com

Australasia

Mono Pumps (Australia) Pty Ltd

Mono House, 338-348 Lower Dandenong Road
Mordialloc, Victoria 3195, Australia
T. +61 (0)3 9580 5211
E. ozsales@mono-pumps.com

Mono Pumps (New Zealand) Ltd

PO Box 71-021, Fremlin Place, Avondale
Auckland 7, New Zealand
T. +64 (0)9 829 0333
E. info@mono-pumps.co.nz

Asia

Mono Pumps Ltd, No. 500 YaGang Road

Lujia Village, Malu, Jiading District
Shanghai 201801, P.R. China
T. +86 (0)21 5915 7168
E. monoshanghai@nov.com

www.mono-pumps.com