Trumpf LASERCELL 1005, Руководство оператора

Страница: 606 / 645

B337EN07.doc
Maintenance of laser
7-17
Maintenance point Interval /
Operating
hours Maintenance information
Caution
Cooling water additives have a caustic effect on skin and eyes.
Wear safety glasses and protective gloves when working with
cooling water additives. Observe instructions on products and
product packaging.
Notices regarding the filling amounts are also located on the water
tank of the beam generator cooling unit.
Notes on using the cooling
water additive:
The cooling water additive ST-40 is used for the cleaning cycle of
the Al and Cu circuit. The cooling water additive ST-40 ,
•
must never be used during normal operation.
•
must never be used in combination with other cooling water
additives.
Aerate the water circuit
For a good cleaning result, switch the coolant circuit off several
times during the cleaning cycle, and unscrew a screw connection
on the laser, so that the cooling water will flow into the water tank.
Cleaning cycle
•
Completely empty the water tank.
•
Clean the water tank with rags or with a steam jet.
•
Replace filter or clean strainer in the appropriate cooling circuit.
Fill the tank 60% with demineralized water.
•
After filling the tank, remove air from the water pump by
carefully turning the vent screw. As soon as water comes out,
close the vent screw.
•
Switch on coolant circuit and add cooling water additive ST-40
in a concentration of 15 ml/100 l of cooling water.
•
After 30 minutes, change filters in the Al and Cu circuit.
•
Let off the cooling water after one hour
Replace the filters and fill the tanks with fresh cooling water.
•
After filling, aerate the water pump and switch on the water
circuit.
•
Measure the conductivity of the cooling water after the water
has circulated for 5 minutes.
•
If conductivity is below 20
µ
S/cm, add the cooling water
additives (Nalco 2513 und NALCO 2594), or change the
cooling water.