TUFFA TANKS 10000VBFS, Инструкция по установке, эксплуатации и обслуживанию

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7. OPERATION OF THE SYSTEM
b. Loosen the eight screws (see diagram 1, pos. “7”).
c. Remove the body cover (pos. “8”) together with the gear unit. During this operation be careful
not to damage the gasket (pos. “10”).
d. Remove the whole measuring chamber (pos. “11”) by lifting it from the meter body and at the
same time pulling it back towards the inlet in order to remove the O ring (pos. “16”) from its seat
at the outlet. To check the inside of the measuring chamber (pos. “15”), remove the O ring and
divide the two half chambers containing the nutating disk.
1.11 GEAR UNIT
To reach the gear unit components:
a. Remove the cover.
b. Loosen the screws.
c. Remove the plate. Now all gears can be reached for inspection. Should the gasket be replaced,
remove the bevel gear from the shaft by pulling axially, then remove the gear together with
the shaft. The gasket replacement always requires the replacement of the bush provided with
the spare part kit. Tor eassemble reverse the above described procedure paying particular
attention to:
• Lubricate the O ring before installation.
• Check that the gear unit can rotate freely before fixing the cover
1.12 PROBLEMS, CAUSES AND SOLUTIONS
Problem Possible cause Corrective action
Leak from the
shaft gasket
- Damaged gasket Remove (see section “Gear unit”)
and replace the O ring and the bush
Insufficient
accuracy
- Wrong calibration Repeat calibration following the instructions
in section “Measuring chamber”
- Soiled or blocked measuring chamber Clean the measuring chamber following the
instructions in section “Meter unit”
- Air in the fluid Locate and eliminate leaks in inlet lines
Reduced flowrate - Clogged or blocked measuring chamber Clean the measuring chamber following the
instructions in section “Measuring chamber”
- Blocked or soiled filter Clean the filter