Alfa Laval FrontLine WideGap 100, Инструкция по эксплуатации, Страница: 22 / 30

Maintenance
Step 9
Loosen and remove the locking bolts. Identify them according to
“Bolt configuration” on page 20.
Note!
Brush the threads of the tightening bolts with a steel wire
brush and then grease the threads before loosening the
tigthening bolts.
Step 10
Use the tightening bolts to open the heat exchanger. During
the opening procedure keep the frame plate and pressure plate
parallel. Skewing of the pressure plate during opening must not
exceed 10 mm (2 turns per bolt) across the width and 25 mm (5
turns per bolt) vertically.
Loosen the four tightening bolts (1), (2), (3), (4) diagonally until
the plate pack
A measure is 1.05 making sure that the frame
plate and pressure plate are parallel while opening. Continue
alternating between each bolt until all reaction forces of the plate
pack have disappeared. Then remove the bolts.
A
A
3
1
2
4
Step 11
Open the plate pack by letting the pressure plate glide on the
carrying bar. Usually it is not necessary to remove the plates
to clean them.
Caution!
To avoid hand injuries owing to sharp edges, protective
gloves should always be worn when handling plates and
protection sheets.
If plates are to be numbered, do this before removing the plates.
Plates need not be removed if cleaning is done using only water,
i.e. without a cleaning agent.
Warning!
The plate pack may still contain a small residual amount
of liquid after draining. Depending on the type of
product and type of installation, special arrangements,
e.g. drainage box, may be necessary to avoid injury to
personnel and damage to equipment.
Document ID Language Edition
22 Instruction Manual - Plate Heat Exchangers 3490017599 EN 2016-06