Graco RTX 900 Repair Manual page 15

Piston/Cylinder
Reassembly
CAUTION
Piston and cylinder come packaged
together. Do NOT let piston and cylinder
come apart. If they do, make sure you
drop the piston down through the top of
the cylinder and tilt the piston as you
pull it through the cylinder. Do NOT
push the piston up from the bottom. You
could easily damage the piston gasket.
1. Replace piston (77) and cylinder (76) and use 7/32
in. allen wrench to tighten hex screw (87) into piston
rod.
77
87
2. Replace valve plate (75) with ribs facing up toward
head.
110
311772G
ti8943a
ti8893a
100
74
75
76
ti8887a
3. Replace three bolts (100) and use 1/2 in. socket to
tighten into head (74). Torque all three bolts to 75
in-lb, then torque all bolts again to 210 in-lb.
4. Position muffler (110) as seen below and press onto
head (74) until it snaps into place.
5. Replace Compressor, page 12.
™
6. Replace RotoFlex
7. Replace Shroud, page 7.
II Pump hose; page 9 or 10.
15