Graco Core E1 Operation, Repair, And Parts page 26

Repair
Ball Screw Reassembly
1. Thoroughly clean all grease and debris from the
inside of the guide cover (208) and inside the motor
shaft.
2. Apply synthetic grease with Syncolon (PTFE) to all
grooves of the ball screw (204) and install the ball
screw into the motor (201).
3. Place the open end of a 24 mm wrench on the flats
(FL) of the ball screw assembly (204) to prevent
rotation and use a 3 mm Allen wrench to install the
four fasteners (205) to secure the ball screw to the
motor (201). Torque fasteners to 30-35 in-lb
(3.3-3.9 N•m).
4. If a tie rod was removed during the disassembly
process, apply a drop of medium strength thread
locking compound to the male threads and use a
7/16 in. open end wrench to install the tie rod.
Torque to 110-120 (12.4-13.6 N•m).
5. Apply synthetic grease with Syncolon (PTFE) to
internal flat surfaces of the guide cover (208).
6. Manually rotate the ball screw (204) until the
coupler reaches the midpoint of the tie rods (203)
and orient the ProConnect notch of the coupler so
it is facing the side opposite the motor cable.
7. Install the guide cover (208) into the tie rods (203)
and over the ball screw (204) coupler. Make sure
the guide cover access door is facing the same
direction as the ProConnect notch of the ball screw
coupler.
NOTE: The guide cover may need to be tapped into
place with a rubber mallet.
8. Install the mounting clamp ring (206) onto the tie
rods (203) and guide cover (208).
26
NOTE: The notch in the mounting clamp ring (206)
aligns with the tab on the guide cover (208) access
door.
9. Put a drop of medium strength thread locking
compound onto the threads of each of the four
fasteners (207). Use a 3/16 in. Allen wrench to
install fasteners through the mounting clamp ring
(206) and into the tie rods (203), then torque to
110-120 in-lb (12.4- 13.6 N•m).
10. To re-install the motor, follow the Install the
Electric Motor procedure on page 17.
204
208
206
ti40976a
201
203
FL
205
207
3A8503C