Graco NXT Air Motor M02LN0 Instructions And Parts page 12

Repair
Reassemble the Air Valve
1. Lubricate detent cam (104) and install into hous-
ing.
2. Lubricate the u-cups (108†) and install on the pis-
ton (102) with lips facing toward the center of the
piston.
108†
Lips face down
102
108†
Lips face up
F . 7: Air valve u-cup installation
IG
3. Lubricate both ends of the piston (102) and install
it in the housing.
4. Lubricate and install the detent assembly (103)
into the piston.
5. Standard models (No DataTrak or DataTrak with
cycle count only): Lubricate new o-rings (106†)
and install on the end caps (107). Install the end
caps into the housing.
DataTrak models with runaway protection sole-
noid: Lubricate and install new o-ring (106†) on
bottom end cap (107). Lubricate and install new
o-ring (119†) and runaway reset button (118) on
top end cap (117). Install the end caps (107,
117) into the housing.
6. Install a snap ring (110) on each end to hold end
caps in place.
12
7. Install the spring (111).
8. M02xxx and M04xxx Motors: Lubricate and install
the air valve cup (112). Align the small round mag-
net with the air inlet.
112
F . 8: Cup installation
IG
M07xxx, M12xxx, and M18xxx Motors: Lubricate
and install the cup o-ring (112b) on the cup body
(112a), then assemble the cup body to the cup
base (112c). Lubricate and install the cup assem-
bly. Align the small round magnet with the air inlet.
ti12754a
112c
F . 9: Two-piece cup installation
IG
9. Install the valve plate (105). Tighten the screws
(109†) to hold it in place.
Magnet
112a
112b
ti12752a
ti12752b
312796S