Cleaning The Interior (Weighing Platforms With Raisable Load Plate Only) - Mettler Toledo PFA Serie Manual Del Usuario

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30290627D PFA-series
Cleaning a recessed weighing platform
➜ Ensure that the gap (1) between weighing platform and pit frame is always kept clear.
➜ Remove larger dirt deposits at the pit bottom (2) at regular intervals.
➜ Check the pit drainage channel (3) for blockage at regular intervals.
Cleaning the pneumatic springs
CAUTION
Even minor damage, corrosion or flecks of paint on the piston rod lead to failure of
the pneumatic springs.
▲ Protect pneumatic springs against soiling and damage.
➜ When cleaning the pneumatic springs make sure that the cleaning agent will not
cause any corrosion.
➜ The cleaning agent must not corrode any brass components of the pneumatic spring
sealings.

4.2 Cleaning the interior (weighing platforms with raisable load plate only)

Note
Only start the cleaning process when the raisable load plate is secured in its upright
position.
PFA579(x)lift
The weighing platform has to be opened in order to clean the interior of the weighing
platform.
1. Open weighing platform, see section 4.4.
2. Remove dirt and deposits in the interior of the weighing platform when required.
3. Use compressed air to remove dirt particles from the gap (A) between the overload
protection of the load sensor and the load frame of the weighing platform.
4. Grease the retainer and O-rings of the levelling foot, if required.
5. Close weighing platform, see section 4.4.
PFA779lift
The load frame is closed completely. There are no covered edges and no potential
contamination sources in the interior of the load frame.
• Visual inspection and cleaning possibilities in the corner area by cleaning holes (1).
• Measuring cell area accessible at the sides (2) for additional visual inspection and
cleaning.
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Maintenance