Graco XM PFP Repair Parts page 19

Replace Purge Controller
For hazardous location systems only.
1. Turn system main power switch OFF.
2. Disconnect four air tubes from the purge controller
(1504).
Purge Controller (1504) Air Tubes
3A2989V
D
3. Remove seven mounting screws (S), door (D), and
door gasket (G). Remove the purge controller
(1504) and gasket (1549) from the back of the purge
box.
4. Install new gasket (1549) on purge controller
(1504), then insert the purge controller (1504) and
new gasket (1549) from the back of the purge box.
Connect to frame with mounting screws (S).
5. Connect air tubes to purge controller (1504) fittings.
S
1504
1549
G
Repair
19