Graco ProMix PD2K Repair Parts Manual page 41

Replacing the EFCM Control Module
NOTICE
To avoid damaging the circuit boards when
servicing the control box, wear Part No. 112190
grounding strap on your wrist and ground
appropriately.
To avoid electrical component damage, remove all
system power before plugging any connectors.
1. Follow the steps in Before Servicing, page 36.
2. Loosen the screws (124) and remove the
enclosure cover (117, not shown).
3. Note the position of the EFCM input and output
cables. See Electrical Schematics, page 29.
Disconnect the cables from the EFCM (139).
4. Loosen the screws (142) holding the EFCM to
the enclosure. Remove the module.
5. Install the new EFCM, using the screws (142).
6. Reconnect the cables to the positions as noted
above.
7. Turn on power at the main circuit breaker.
3A2800B
8. Load the software.
Install Key Token or Upgrade Token, page 38.
9. Turn on the control box power switch. Check that
the green is on, the orange and yellow LEDs are
blinking, and the red LED is off.
10. Reinstall the cover (117) and tighten the screws
(124).
Figure 29 Replacing the EFCM Control Module
Repair
See
41