Graco Inc. UNICARB Pro AA4500 - Manual (Page 30)

30 308936
Service
Electrode Replacement
WARNING
ELECTRIC SHOCK HAZARD
To reduce the risk of fire, explosion, or
electric shock, do not operate the spray
gun without the electrode installed in the
air cap.
1. Prepare the gun for service as instructed on page
28.
2. Remove the retaining nut (8), tip guard, (2), air cap
(1) and spray tip (9). See Fig. 7. You may have to
turn the air cap with the tip guard to remove the air
cap from the gun.
3. Pull the electrode (1a) out of the backside of the
air cap with a needle nose pliers.
4. Push the new electrode through the air cap hole.
Place firm finger pressure on the electrode wire
(1a) on the backside of the air cap, and make sure
the short end (BB) of the electrode engages into
the hole (CC) as shown in Fig. 9.
5. Assemble the spray tip, air cap, and tip guard.
Then install them on the gun, securing them with
the retaining nut. Tighten the retaining nut firmly.
6. Test the gun resistance as instructed on page 25.
8804A
Fig. 9
1a 1
BB CC