Mono MM

3. Acid wash @ 50°C for 20 mins
4. Water rinse @ 80°C for 20 mins
CIP flow rates (hence pump speeds) should be
maximised to achieve highest level of cleanability.
A C.I.P. liquid velocity of 1.5 to 2.0 m/s is required
for removal of solids and soiling.
Pumps fitted with CIP by pass ports will permit
higher flow rates without the need to increase pump
speed.
The use of neat active caustic
and acid chemicals is not
recommended. Proprietary cleaning
agents should be used in line with manufacturers
instructions.
All seals and gaskets should be
replaced with new if disturbed
during maintenance.
Pump internals should be regularly inspected to
ensure hygienic integrity is maintained, especially
with respect to elastomeric components and seals,
and replaced if necessary.
The four stages constitute one cycle and we
recommend that this cycle is used to clean the pump
before use on food.
Once the pump has been commissioned, the
cleaning process will depend upon the application.
The user must therefore ensure that their cleaning
procedures are suitable for the duty for which the
pump has been purchased.
2.11 WIDETHROAT PUMPS
Specific pumps may have auger feed screws, with
or without a bridge breaker system to feed the
pumping element. If the pump installation requires
that these cannot be enclosed, care must be taken
to ensure personnel cannot gain access whilst the
pump is operating. If this is not possible an
emergency stop device must be fitted nearby.
2.12 EXPLOSIVE PRODUCTS/ HAZARDOUS
ATMOSPHERES
In certain instances the product being pumped may
well be of a hazardous nature.
In these installations consideration must be given to
provide suitable protection and appropriate warnings
to safeguard personnel and plant.
2.13 ACCESS PORTS
Where access ports are fitted then the following
steps must be followed prior to removal:
1. Pump must be shut down and the electrical supply
isolated.
2. Protective clothing should be worn, especially if the
pumped product is obnoxious.
3. Remove access plate with care utilising where
possible drip trays to collect product leakage.
Access ports are included to assist in removing
blockages and to allow a visual check on the
components within the suction chamber.
It is not to be considered as an additional method in
dismantling the pump.
Re-assembly of the plate should be completed using
new gaskets prior to the pump being switched on.
2.14 ADJUSTABLE STATORS
If adjustable stators are fitted then the following
steps must be followed for adjusting the clamping
devices.
The adjustable stator assembly is designed to give
an even compression around the stator
circumference. It is designed to be used when
pump performance reduces through wear to an
unacceptable level, to restore the required flow rate.
The stator compression is increased using the
following steps:-
1. Release the six locking screws half a turn.
2. Tighten the eight clamp screws until adjustment
allowed by releasing the lock screws has been taken
up.
3. Repeat steps 1 and 2 until the pump performance
has been restored to its former level.
NOTE
It is imperative that when adjusting the stator that
only sufficient pressure is placed on the stator to
enable the capacity of the pump to be reinstated.
Over tightening of the stator could easily result in
damage to the driver by overload and so extreme
care must be taken when carrying out these
adjustments.
Section 1, Page 5
Issued – December 2002
Installation, Operation & Maintenance Instructions