Brooks Instrument 5861E - Manual (Page 26)

4-6
Model 5861E
Section 4 Maintenance Installation and Operation Manual
X-TMF-5861E-MFM-eng
Part Number: 541B107AAG
November, 2008
B. Assembly
Note: It is recommended that all O-rings be replaced during meter
assembly. All O-rings should be lightly lubricated with Fomblin
grease,
(part of O-ring kit, Section 5) prior to their installation.
1. Examine all parts for signs of wear or damage, replace as necessary.
2. Place the restrictor O-ring(35) onto the Header plate of the restrictor
assembly (37).
3. Install restrictor assembly into the restrictor cavityusing the header
removal tool. Rotating the assembly slightly assists installation. It is
important that the restrictor assembly is put into the bodyin the same
orientation as it was prior to removal. (Refer to Section 4-6). Do not
press header assembly into body with an arbor press as it may damage
the O-ring.
4. Place the end block O-ring (6) in position and install end block (3) with
the 4 hex socket screws (5). Tighten these screws to 34 inch lbs. Do
not over tighten.
5. Install O-rings (19) on inlet and outlet fittings. Install fittings into body (1)
and end block (3).
6. Press the lubricated sensor O-rings (8) into the flow meter body(1).
7. Install the sensor assembly (7) as shown in Figure 5-1 and secure with
the 2 allen nuts (9) and washers (10). Tighten the allen nuts to 10 inch
lbs.
8. Install the printed circuit board(28), secure with bracket (26)and 2
screws (27). Plug the connector from the sensor assembly (7) into the
PC board.The flow arrow on the connector should be pointing in the
direction of the flow.
9. Install the electronics cover(40) on the meter and secure with 3 screws
(27).Tighten the upper jack post on the "D" connector.
10. Prior to installation, leak and pressure test the assembled flowmeter to
any applicable pressure vessel codes.