Graco Fusion AP User Manual

Maintenance
309550ZAP 23
Clean Mix Chamber Nozzle
1. Follow the Pressure Relief Procedure, page 19.
2. Engage the piston safety lock (L). See Piston
Safety Lock, page 20.
3. Use the appropriate size drill bit to clean mix
chamber nozzle (N). If necessary, clean air cap (C)
gently with stiff brush.
NOTE: Refer to TABLE 1, and Drill Bit Kits, page 39.
Clean Air Cap
Soak air cap in compatible solvent. Clean holes with #58
(0.042) drill bit.
Clean Impingement Ports
1. Follow the Pressure Relief Procedure, page 19.
2. Disconnect air line quick coupler (D) and remove
fluid manifold (M).
3. Follow the Flush Gun procedure, page 20. If the
gun will not flush, see Inspect the Mix Chamber
and Side Seal Cartridges, page 24.
4. Follow the Remove Front End procedure, page 29.
5. Push mix chamber (19) forward until impingement
ports (IP) are visible. Some mix chambers have
counterbored holes (CB) and require two drill sizes
to clean impingement ports completely. See TABLE
2, page 24, to select the appropriate drill bit size.
Also see Drill Bit Kits, page 39.
Table 1: Nozzle Drill Bit Sizes
Round Spray Flat Spray
Mix Chamber
Part Number
Drill Size
in. (mm)
Mix
Chamber
Part Number
Drill Size
in. (mm)
AR2020
#58, 0.042
(1.00)
AF2020
3/32, 0.094
(2.35)
AR2929
#55, 0.052
(1.30)
AF2929
3/32, 0.094
(2.35)
AR3737
#55, 0.052
(1.30)
AR4242
#53, 0.060
(1.50)
AF4242
3/32, 0.094
(2.35)
AR4747
1/16, 0.0625
(1.59)
AR5252
#50, 0.070
(1.75)
AF5252
3/32, 0.094
(2.35)
AR6060
#44, 0.086
(2.15)
AR7070
3/32, 0.094
(2.35)
AR8686
#32, 0.116
(2.90)
AR2237
0.47 (1.2)
AF2033
3/32, 0.094
(2.35)
AR2924
#55, 0.052
(1.30)
AF2942
3/32, 0.094
(2.35)
AR3729
#55, 0.052
(1.3 mm)
TI2409A
L
D
M
TI2554A
IP
CB
IP
CB
TI2420A
TI3533a
Mix Chambers AR and AF,
2020 and 2929
Mix Chambers AR and AF,
4242 or larger
19

Graco Fusion AP Specifications

General

Brand	Graco
Model	Fusion AP
Category	Paint Sprayer
Language	English