Graco 231–406, Series A Instructions-Parts List Manual page 21

227
B
Torque to 150 in. lbs (17 N–m)
Fig 16
2. Insert new o–ring (220) into bore (A) of motor
control (201) at an angle so that forward facing
part of o–ring is below weep hole (C). Then slide
o–ring down bore into o–ring groove (B). Make
sure o–ring is in groove around its entire circumfer-
ence.
NOTE: O–ring (220) is made of
difficult to work with.
3. Carefully slide new transducer and plastic
spacer (217) down bore. Loosely attach
bracket (218), screws (213), and washers (214).
4. Seat transducer into o–ring by drawing down
screws and washers until bracket is flush with
motor control surface.
Pressure Control Repair
214
216
217
A
214
213
C
PTFE
which is more
229
213
215
218
219
220
201
5. Carefully remove transducer and verify that o–ring
is seated correctly and not pushed out of groove. If
not seated correctly use new o–ring and repeat
steps 2 through 5.
6. When o–ring is correctly installed, reinstall trans-
ducer and tighten screws to 150 in. lbs (17 N–m).
Install spacer (216) and C–clip (215). Re–connect
electrical lead and re–assemble sprayer.
7. Follow Airless Operation start–up procedures for
sprayer on page 7 using compatible fluid.
8. Inspect weep hole (C) for any leakage.
9. If any leakage is present, replace o–ring repeating
steps 1 through 9.
230
23
23a
202