Parts List - Graco GMax
3900 Instruction Manual

Model 220–955, Series D; Model 235–990, Series C; Model 217–593, Series E; Model 820–165, Series D
Ref.
No. Part No. Description
1 218–070 NEEDLE–DIFFUSER/SEAT KIT
2 166–969 GASKET,
3 220–251 TIP GUARD
4 100–421 SETSCREW
5 179–734 2 FINGER TRIGGER
5a 179–943 4 FINGER TRIGGER
(Model 235–990 only)
6 218–643 GUN HANDLE ASSEMBLY
includes replaceable items 4, 13, 14
10 172–479 INSTRUCTION TAG
11 179–761 WARNING TAG
12 190–972 TRIGGER GUARD
13 179–730 GUARD RETAINER
14 109–575 SCREW
15 218–021 SWIVEL
16 179–750 SPRING RETAINER
17 218–131 FLUID FILTER ASSEMBLY
(standard 50 mesh) includes
replaceable items 16, 18, 20, 21
17a 218–133 FLUID FILTER ASSEMBLY
(optional 100 mesh) includes
replaceable items 16, 18a, 20, 21a
18 179–731 STRAINER ELEMENT
(standard 50 mesh)
18a 179–732 STRAINER ELEMENT
(optional 100 mesh)

Parts List

tip (used with flat tips only)
, soc hd, 5/16–18 x 3/8"
(standard)
, 8–32 x 5/16"
Ref.
Qty. No. Part No.
1 19 179–721
1 20 179–763
1 21 179–722
1
1 21a 179–957
1 22 179–733
23 191–244
1 26 179–718
1 31 105–334
1 32 177–538
1 33 179–737
1 37 179–729
1 39 222–385
1 40 221–517
1 41 237–859
1 Replacement Danger and Warning labels, tags and
cards are available at no cost.
1
Keep these spare parts on hand to reduce down
time.
1
1
Description
FLUID TUBE
SPRING
SPRING RETAINER
(color coded blue)
(for standard 50 mesh filter)
SPRING RETAINER
(color coded orange)
(for optional 100 mesh filter)
GASKET
END CAP
FLUID HOUSING
LOCKNUT;
M4 x 0.7 thread
TRIGGER STUD
ACTUATOR PIN
NEEDLE HOUSING
WARNING CARD (not shown)
SWITCHTIP SPRAY TIP,
SZ 517
RAC DripLess GUARD
See manual 307–644 for parts
Qty.
1
1
1
1
1
1
1
1
1
2
1
1
1
1