Replacement of 7349 Flowmeter
Replacing a Flowmeter in a Model 7060 MEDG
Due to a configuration change by the component manufacturer, a replacement Howell Laboratories, Inc. Part No. 7349-03 flowmeter will not fit in the mounting recess used by the original equipment. Therefore, if replacing this flowmeter, use the following procedure:
I. Parts provided:
- Flowmeter P/N 7349-03, qty 1.
- Top brace P/N 7433-02, qty 1.
- Bottom brace P/N 7433-03, qty 1.
- Retaining strap 7728-01, qty 2.
- 10-32 screws with flat washers, qty 2 sets.
- 1/4-20 screws with nuts and flat washers, qty 4 sets.
- 6-32 screws with nuts and flat washers, qty 4 sets.
II. Lock out and tag out.
Shut the equipment down and lock and tag it out in accordance with the technical manual.
III. Remove the defective flowmeter.
- Disconnect the two hoses from the hose barbs on the defective flowmeter.
- Remove the mounting screws and braces securing the flowmeter to the panel. Remove the flowmeter.
IV. Install the new flowmeter (figure).
- Remove the two hose barbs from the defective flowmeter and install them (1) in the new flowmeter (2), using a good grade of silicone lubricant on the O-rings.
| NOTE: |
The flowmeter mounts on the FRONT of the panel, not into the rear like the old one! |
- Using the 1/4-20 screws, nuts and washers (3), secure the top brace (4) and bottom brace (5) to the panel (6). Don't tighten yet.
- Using the 10-32 round-head screws (7) with flat washers, secure the flowmeter to the braces, sandwiching the panel in between. Don't tighten these screws at this time.
- Install the retaining straps (8) over the flowmeter with the 6-32 screws, nuts and washers (9), extending through the panel and the braces as shown.
- Align all the parts and tighten the hardware.
- Connect the hose sections to the two hose barbs (1). Flowmeter replacement is complete.
