Graco Dyna-Star A Series Instructions-Parts List Manual page 13

Assembly after Replacing Throat Seals
See Fig. 5.
1. Apply fresh grease to the new throat seal (110)
and the mating groove in the base (115). Install
the new throat seal.
CAUTION
Be careful not to scratch the outside of the piston
rod.
2. Push the piston rod (116) down through the base
(115), and install.
3. Install the bolts (105) and washers (103). Torque to
20 to 25 ft-lb (27 to 34 N-m).
4. Apply Loctite 242 to the threads on the piston
(117). Install the ball (104). Screw the piston into
the piston rod (116).
5. Place the piston (117) in a vise, and tighten the
piston rod (116). Torque to 155 to 175 ft-lb (210 to
237 N-m).
6. Apply fresh grease and install a new o-ring (112)
on the pump cylinder (118).
7. Using a strap wrench on the pump cylinder (118),
screw it tightly into the base (115).
Service