Repair; Disassembly; Reassembly - Graco E-Flo DC Series Instructions Manual

Repair

Repair Repair

Disassembly

Disassembly Disassembly
1. Stop the pump at the bottom of its stroke.
2. Follow the Pressure Relief Procedure, page
Models with with Sealed Sealed Lowers:
3. Models Models with Sealed
shield (12) by inserting a screwdriver straight into
the slot, and using it as a lever to release the tab.
Repeat for all tabs. Do
to pry the shields apart.
4. Disconnect the inlet and outlet manifolds (3)
from the lower and plug the ends to prevent fluid
contamination.
5. Loosen the coupling nut (11) and remove the
collars (10). Remove the coupling nut from the
piston rod (R). Unscrew the locknuts (8) from the
tie rods (6). Separate the motor (3) and lower (7).
6. To repair the lower, see the lower manual.
7. There are no user-serviceable parts in the
motor. Contact your Graco representative for
assistance.
3A3453H
Lowers: Remove the 2-piece
Lowers:
Do not not use the screwdriver
Do not

Reassembly

Reassembly Reassembly
1. If the coupling adapter (16) and tie rods (9) have
not been disassembled from the motor (1), skip
to step 2.
If the coupling adapter (16) and tie rods (9) have
been disassembled from the motor (1), follow
these steps:
a. Screw the tie rods (9) into the motor (1) and
17.
b. Apply blue thread locker to the coupling
c. Screw the coupling adapter (16) into the
d. Continue to step 2.
2. Assemble the coupling nut (17) over the piston
rod (R).
3. Orient the lower (4) to the motor (1). Position the
lower (4) on the tie rods (9).
4. If you are reusing lock nuts (8) and the nylon of
the lock nut is worn or cut, add blue thread locker
to the tie rod threads.
5. Screw the lock nuts (8) onto the tie rods (9).
Leave the lock nuts (8) loose enough to allow
the lower (4) to move so that it can be aligned
correctly.
6. Insert the collars (18) into the coupling nut (17).
Tighten the coupling nut (17) onto the coupling
adapter (16) and torque to 90–100 ft-lb (122–135
N•m) to align the motor shaft with the piston rod
(R).
7. Tighten the lock nuts (8) and torque to 50-60 ft-lb
(68-81 N•m).
torque to 50-60 ft-lb (68-81 N•m).
adapter (16).
motor shaft and torque to 90–100 ft-lb
(122–135 N•m).
Repair
49