Alfa Laval S 821 - Service Kits, Screw Tightening, and Cleaning

6 SERVICE, DISMANTLING, ASSEMBLY SEPARATOR MANUAL
42 578701-02
The use of service symbols in the
dismantling/assembly instructions
Parts that have to be renewed from the service
kits (see below) are marked
and/or in
the assembly instructions.
Example:
a Fit the O-ring .
When dismantling and assembling between
the service periods, some procedures do not
have to be carried out. These procedures are
marked
and/or .
Example:
5 Renew the valve plugs on the operating
slide
.
All symbols used in the instructions refer to
activities mentioned in the maintenance logs.
6.1.3 Tightening of screws
Tightening all screws with the correct torque
value is important.
These figures apply unless otherwise stated:
The figures apply to lubricated screws
tightened with a torque wrench.
6.1.4 Service kits
A Commissioning kit is included in the delivery
which contain various O-rings that might
needs to be changed when assembly for the
first time.
Special service kits are available for Inspection
and Overhaul.
For other services, a Support kit is available.
Spare parts not included in the Support kit
have to be ordered separately.
Note that the parts for Inspection are included
in the Overhaul kit.
The contents of the kits are described in the
Spare Parts Catalogue.
6.1.5 Cleaning
CIP (Cleaning In Place)
To prolong the intervals between manual
cleaning of the separator the use of CIP
together with repeated discharges can be used.
Some CIP liquids can be corrosive to brass- and
aluminium alloy parts which are included in
the separator.
C
A
U
T
I
O
N
!
Use only Alfa Laval recommended CIP liquids.
Torque
Metric
thread
Stainless steel Carbon steel
Nm kpm Ib.ft Nm kpm Ib.ft
M4 1,7 0,17 1,2 2,25 0,25 1,8
M5 3,4 0,34 2,5 4,9 0,49 3,6
M6 7 0,7 5 8 0,8 5,9
M8 17 1,7 13 20 2 14,7
M10 33 3,4 24 39 3,9 28,7
M12 57 5,8 42 68 6,9 50
M16 140 14 100 155 15,8 114
M20 270 28 200 325 33 239
M24 470 48 340 570 58 420
i
i o
i
i
i
i o
i
i
N
O
T
E
Always use Alfa Laval genuine parts as otherwise
the warranty may become invalid.
Alfa Laval takes no responsibility for the safe
operation of the equipment if non-genuine spare
parts are used.
W
A
R
N
I
N
G
!
Disintegration hazards
Use of imitation spare parts may cause severe
damage.