Maintenance; Daily Service; Weekly Service; Replacing The Cooling Water - Struers RotoPol-21 Mode D'emploi

Daily Service

Weekly Service

Replacing the Cooling Water

Checking the
Recirculation Cooling Unit
32
RotoPol-21/-22/-25
Instruction Manual

4. Maintenance

Clean all accessible surfaces with a moist cloth.
Remove the grinding/polishing disc and remove all dirt from the
tray and the drain tube.
Only relevant when a Recirculation Cooling Unit is connected:
Replace the cooling water in the Recirculation Cooling Unit at
least once a month.
Place a Disposable Plastic Container (TREPO) in the tank and
fold it over the edge.
Fill the tank with 30 l of water. NB! Too high a level of coolant
in the tank could damage the pump.
Add Struers Additive according to the instructions.
Put the lid on the tank.
Place the pump in the lid
Always maintain the correct concentration of Struers Additive in the cooling
water (percentage stated on the container of the Additive). Remember to
add Struers Additive each time you refill with water.
The cooling unit should be checked for cooling water every week
and refilled when the flushing pump cannot reach the cooling
water. Remember to add Struers Additive for Cooling Fluid: One
part of Additive for 33 parts of water.
The concentration of additive should always lie between 2.7 and
3.3%; the pH should be around 9. Replace the cooling water if pH
is ≤8.0. To check the concentration of additive, use a
refractometer (0-10 Brix, see diagram.). Concentration = 2 x Brix.
Add Struers Additive for Cooling Fluid if the concentration is
lower than 2.7%. Add water if the concentration is higher than
3.3%.
IMPORTANT