Graco Fusion CS 312666F Manual page 30

Maintenance
5. Loosen A and B side seals two turns.
6. Pull out mix chamber from back of fluid.
See Table 2 for appropriate size drill to
clean ports. Also see identification chart
under Drill Bit Kits, page 55.
Some mix chambers have counter bored
holes and require two drill sizes to clean
impingement ports completely.
Impingement Port
IP
CB
Mix Chambers RD and
FL, 2020 and 2929
F . 41
IG
30
TI12097a
IP
CB
TI3533a
Mix Chambers RD and FL,
4242 or larger
Table 2: Impingement Port Drill Bit Sizes
Mix Impingement
Chamber Port (IP) Drill
Bit Size in.
(mm)
RD2020 #76, .020 (0.50)
RD0000 #69, .029 (0.70)
RD0101 #58, .042 (1.00)
RD0202 #55, .052 (1.30)
RD0303 #53, .060 (1.50)
FL2020 #76, .020 (0.50)
FL0000 #69, .029 (0.70)
FL0101 #58, .042 (1.00)
FL0202 #55, .052 (1.30)
7. Push mix chamber back into position.
8. Tighten A and B side seals.
9. Attach Front End, page 37.
10. Attach fluid manifold (M). Connect air (D).
Return gun to service.
Counter-bore
(CB) Drill Bit
Size in. (mm)
#53, .060 (1.50)
#53, .060 (1.50)
N/A
N/A
N/A
#53, .060 (1.50)
#53, .060 (1.50)
N/A
N/A
312666F