Graco ProMix PD2K Repair Parts page 59

Replacing the Power Switch
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
2. Loosen the screws (124) and remove the
enclosure cover (117).
3. Note the position of the power switch input and
output wires. See Electrical Schematics, page
Disconnect the wires from the power switch
(112).
4. Remove the switch terminal blocks (T), unscrew
the retaining nut (N), and remove the switch.
5. Install the new switch.
6. Reconnect the wires to the power switch (112).
Failure to follow the electrical schematic could
result in damage to the electrical components.
332709D
Before Servicing, page
NOTICE
7. Reinstall the cover (117) and tighten the screws
(124).
8. Turn on power at the main circuit breaker.
48.
34.
Figure 39 Replacing the Power Switch
Repair
59