Using The Electric Motor; Controlling The Pump - Graco Core E1 Operation, Repair, And Parts

Install the Electric Motor
Never use the power cord to lift or adjust the pump.
Lifting or adjusting the pump with the power cord can
damage it and cause injury from electric shock.
1. Follow the Pressure Relief Procedure on page 15.
2. Disconnect power to the TPC.
Switch off power and unplug the TPC. Wait five
minutes for power to dissipate before servicing.
3. If the pump has not been parked, pull the pump
lower rod up so that it can be coupled to the
electric motor.
NOTE: Parking the pump increases seal life on the
proportioner pump and increases the ease of
aligning the ProConnect features on the transfer
pump. The pump will automatically park at the
bottom of the stroke when the Reactor 3 is in Park
mode.
4. Open the electric motor access door (DD).
5. Align the notch of the electric motor coupler (CP)
with the button head (BH) of the pump lower.
3A8503C
6. Simultaneously slide the electric motor coupler (CP)
onto the button head of the pump lower and the
electric motor onto the pump lower. Close the
electric motor access door (DD).
Always keep the electric motor access door (DD)
closed and secured with the clamp to prevent injury
from moving parts.
7. Install the pump clamp (DC). Use a screwdriver or
rod to tighten the clamp nut (DN) 1/2 turn past
finger tight.
DC

Using the Electric Motor

A new electric motor needs to be calibrated when
connected to a Transfer Pump Controller (or if the
connections are swapped at the TPC). To calibrate the
pump, see your Reactor 3 operation manual.
Upon each power-on cycle the electric motor will run
slowly for the first several strokes until the end stops
are established.
The TPC will proactively change pump direction in
order to minimize the number of times the pump needs
to switch direction when pumping. The pumps may not
necessarily change direction at the absolute top and
bottom of the stroke.
DA
NOTE: Electric motors do not need pressure
transducers to operate, but can offer additional features
when used with a Reactor 3 system that has inlet
pressure transducers.

Controlling the Pump

The pressure and speed for this pump are controlled
through the Reactor proportioner. See your Reactor 3
operation manual for additional instructions.
Operation
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