Cleaning Or Servicing The Solvent Meter - Graco G3000 Instructions-Parts List Manual

Maintenance
Cleaning or Servicing the
Solvent Meter
NOTICE
Clean and service the meter at a clean workbench.
Use only lint-free cloth on parts.
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 10.
Then close the fluid shut-off valve on each side of
the meter.
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 drawing, page 18.
5. Unscrew the 8 screws (3a) from the base (3b) of the
meter.
6. Carefully remove the cover (3f). Turn it over and
remove the shims (3c).
14
NOTE: See F . 4. Two shim configurations are used.
IG
Some meters use one 0.1 mm shim (3c) above each
gear (3d) and one below. Other meters stack three
shims (.02 and .05 mm, for a total shim height of .09
mm) above and below each gear. When replacing
shims, always maintain the configuration used on your
meter.
One Shim
0.1 mm
TI16684a
F . 4. Shim Configurations
IG
7. Remove the o-ring (3e). Carefully remove the
gear/bearing assemblies (3d). Remove the shims
(3c).
NOTE: Do not remove the gear shafts (S) or the gear
bearings (B).
8. Clean the meter parts with solvent. Do not use
aggressive cleaning agents. Ultrasonic cleaning is
recommended for the gear/bearing assemblies. Dry
all parts thoroughly after cleaning.
9. Place the bottom shims (3c) on the shafts (S). Main-
tain the configuration used on your meter.
10. Install the gear/bearing assemblies (3d) on the
shafts. Install the top shims (3c). Maintain the con-
figuration used on your meter.
11. Insert the o-ring (3e) in the groove of the cover (3f).
Carefully mount the cover on the base (3b).
12. Install the screws (3a). Tighten them oppositely and
evenly, to 11 ft-lb (15 N•m). Do not over-tighten.
13. After tightening all screws, insert a plastic pick
through the meter inlet or outlet and check that the
gears can turn freely.
14. Set the electronic sensor on the cover and tighten
the two screws hand-tight, about 27-57 in-lb
(3.1-6.4 N•m). Do not over-tighten.
Three Shims
{
.09 mm stack
(shims may be
in any order)
TI16685a
308778Y