Maintenance
Cleaning or Servicing the Meter Chamber
NOTICE
Clean and service the meter at a clean workbench. Use only
Installing and servicing this equipment requires access to parts that may cause electric shock or other serious injury if the work is not performed properly. Do not install or service this equipment unless you are trained and qualified.
Use only genuine Graco replacement parts. Substitu- tion of components may impair intrinsic safety. This could result in a failure which causes serious injury and/or substantial property damage.
1.Follow the Pressure Relief Procedure, on page 7. Then close the fluid
2.Disconnect the cable from the electronic sensor device.
3.Disconnect both fluid line fittings and remove the meter from the fluid line.
4.Loosen the two screws and remove the electronic sensor device from the flow meter upper housing. See the Parts drawings, pages
5.Loosen the screws. Keep a few threads of two opposing bolts engaged to minimize the torque stress on the shafts when you separate the meter housings.
6.Hold onto the upper housing and gently tap the opposing bolts to separate the lower housing.
NOTICE
To avoid damaging the shafts, keep the housings par- allel to each other when separating them; do not rock the housings from side to side. Do not use chisels or screwdrivers to split and pry apart the housings.
7.Remove and inspect the gears and shafts. Clean the meter parts with solvent.
8.Reassemble the gears and shafts into the lower housing in the position they were removed from. Check the gears for free and easy rotation.
9.Make sure the two locating pins are in place.
10.Assemble the two meter housings, making sure to keep them parallel to each other.
11.Install the screws. Tighten them oppositely and evenly, to 12
12.After
13.Set the electronic sensor on the upper housing and tighten the two screws
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