Maintenance
Page 11
April 2017
VAM-UM-00646-EN-04
2 Remove wiring, as needed, used for the flow switch(es)
OTE:
N
For configurations with an aluminum enclosure, wiring inside the enclosure does not need to
be disconnected, unless additional cleaning is required Microswitch-equipped configurations
may need to have wiring disconnected from the system to facilitate complete removal from
the line Reed switch configurations have a Hirshmann connector that can be disconnected
from the enclosure
3 Remove the flow meter from the line Remove excess piping from the flow meter
DO NOT USE AROMATIC HYDROCARBONS, HALOGENATED
HYDROCARBONS, KETONES, OR ESTER BASED FLUIDS ON THE POLYCARBONATE LENS.
FAILURE TO FOLLOW THESE INSTRUCTIONS COULD RESULT IN DAMAGE TO THE
FLOW METER.
4 Thoroughly wipe off the entire flow meter surface using mild detergent or isopropyl
alcohol
OTE:
N
For configurations with an aluminum enclosure, remove cover screws and front cover
5 Using the end fitting flats, clamp the outlet end fitting, then remove the inlet end fitting
by rotating it counterclockwise
6 For configurations with an aluminum enclosure, remove the body from the enclosure
by gently pushing the body towards the outlet end of the enclosure, while holding the
magnetic indicator assembly in place
7 For configurations with the strap assembly, remove the inlet end cap, the plastic guard
and guard seals, flow scale and indictor magnet assembly Remove the outlet end cap by
pulling it toward the inlet
8 The remaining parts are secured with a retaining ring inside the body Remove the
retaining ring, piston/internal magnet and spring Use caution to not bend or damage
the retaining ring
OTE:
N
If internal parts do not slide freely from the body, use a wooden dowel inserted into the outlet
port of the flow meter to push the parts out
9 Place all parts on a clean work surface for cleaning and inspection If parts appear to be
damaged, consult factory for repair/replacement options Check the pressure and end
fitting/cap O-rings for damage and replace if required
10 In reverse order, gently reassemble all parts back to their original configuration Use
the groove on the indicator magnet and the middle fin on the back of the flow scale to
ensure proper alignment of the two Ensure the flow scale is in its original location
11 Reinstall the spring, followed by the piston/internal magnet and then the retaining ring
12 Reinstall the cone/spider plate assembly and retaining spring, and secure with the inlet
end fitting If the configuration has an aluminum enclosure, secure the lid and ensure
proper seating of the cover gasket by tightening the screws in a crisscross pattern See
“Figure 6: Cover screw tightening sequence” on page 8
13 Reinstall the flow meter in the line Reconnect the electrical power
