B175-A/S60 Flow Meter - Blancett B1750 User Manual

B175-A/S60 Flow Meter

1 Remove the pickup sensor (not shown) from the flow meter body (5)
2 Remove the hex bolts (6) with a 3/16 in key wrench
3 Re-engage 2 opposing bolts diagonally from each other by a few threads to avoid stress on the shafts and locator pins
during housing separation
4 Holding the upper housing (5), gently tap the opposing bolts (6) to separate the lower housing (1) Do not use chisels or
screwdrivers to split and pry apart the housings - this may damage the gears and locating pins
5 After separation, inspect the gears (3) and bearings (7) Carefully remove the shims (9) located above & below the gears
(3) Inspect and clean the gears taking care not to dislodge the bearings (7) located in the housing Should the bearings
have to be removed take care to locate and replace the shims positioned underneath each bearing The meter should be
recalibrated after any bearing repairs
6 After cleaning, all parts can be reinserted into their previous positions Check for free and easy rotation
7 Replace O-ring (4) if deformed
8 Keep meter housings parallel during reassembly and align index marks (8) Both locating pins must be in place (2)
9 Replace hex bolts and slowly tighten to at least 15 Nm (This is hand tight) Do not force the housing closed Do not use a
hammer Over tightening will not cause damage but may restrict operation if internal surfaces are not completely clean
10 After reassembly, gently blow air into meter so gears spin This should be clearly audible given a moderate background
noise level
11 Clean any debris from the pickup port & hand tighten the pickup sensor Avoid over tightening as this may damage
the meter
12 The bearings should be lubricated prior to storage Never allow contact with water without immediately drying and
lubricating after use
February 2018
Part Name
1 Lower Housing
2
Tool Steel Locating Pins
3
416 Stainless Steel Gear
4 O-ring
5
Upper Housing
6 HEX Socket Cap Screw
7
Ball Bearings
8
Index marks
9 Shims
PDM-UM-00274-EN-03
Maintenance
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