Graco EM 380 Instructions-Parts List Manual page 7

Remove pump, connecting rod and bearing as describ-
ed above.
Remove screws and lockwashers (A&B) and remove
drive housing (Cl. Remove screws and lockwashers (82
Et 83) and remove motor housing (D). See Fig 6.
Clean and inspect gear (37) for wear or damage.
Replace if necessary. To remove, drive out pin (27) and
pull off of motor shaft. Apply molybdenum disulfide
spray lubricant to gear, allow to dry, then apply in-
dustrial heavy duty extreme pressure lithium soap
grease.
Install new drive assembly in reverse order of removal.
REPLACING CAPACITOR
Remove cover of capacitor (91 I. See Fig 7. Remove flag
connectors from old capacitor. Connect flag connectors
of new capacitor and replace cover.
NOTE:
The replacement capacitor includes new
resistor, installed.
REMOVING and REPLACING ELECTRIC MOTOR
, I,
Shut off and unplug sprayer, trigger spray gun and
open filter drain valve to release pressure (provide a
container to catch drainage) and engage trigger safety.
Disconnect red, pink and brown wires from circuit
board (E). Disconnect green and yellow wire from
grounding screw(F) and black wire from top of pressure
control (G).
Disconnect tube fitting (8) from nipple (IO). See Fig 1.
Remove drive assembly as described above. You can
leave pump, connecting rod and bearing assembled to
drive assembly.
Unscrew nuts on both ends of conduit (I 1 from connec-
tors. Remove screws (71, nuts (3) and lockwashers (4).
See Fig 7. Remove motor from frame while carefully
guiding wires through connector in control box.
Remove conduit (I) from wires.
Drive out pin (27) and remove gear (37). See Fig 7.
Remove screws (25) and cover (41) from pressure con-
trol (50). See Fig 8.
Loosen locknut and unscrew connector (13) from
motor, being careful to avoid twisting wires.
Install new motor in reverse order of removal.
PMoToR
3
Fig 7 Fig 8
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