Graco 244846 Instructions-Parts List

Repair
14 308655K
9. Align the holes in the valve nuts (21*) and the slots
on the top of the inlet valve poppets (32*), and drop
the lock wires (22*) through the holes in the valve
nuts and into the slots in the inlet valve poppets.
Pull the lock wires down tightly, and bend the ends
with pliers so that they cannot be pulled back out of
the holes.
10. Grease and install the new o-rings (19*, 20*) on the
piston assembly (27) and in the groove in the air
motor base (28).
11. Clamp the air motor base (28) in a vise horizontally
by closing the vise jaws on the flange.
12. Grease and reinstall the u-cup seal (10†), thread
and throat bearing (36) into the air motor base (28),
and torque the throat bearing to 30 to 40 ft.-lbs
(40.7 to 54.2 N•m) using a 2 in. socket.
13. Slide the piston rod (29) down through the packing,
and lower the piston assembly (27) into the air
motor base (28).
14. Carefully lower the cylinder (30) straight down onto
the piston assembly (27). Tighten the eight screws
(3) holding the cylinder to the base (28).
15. Grip the trip rod (31) with padded pliers, screw the
lift ring (24) onto the tip rod, push the lift ring down,
and screw it into the top of the cylinder.
16. Install the u-cup packing (107†) with the lips facing
up, and place the piston washer (113) on the
piston/valve sear (109). Make sure that the lips of
the u-cup packing face up (F
IG. 3)
17. Place the piston ball (103) in the piston rod (29).
18. Clean the threads of the piston/valve seat. Apply
thread locking compound to the threads (109), and
thread the assembly from step 16 onto the piston
rod (29).
19. Clamp the flats of the piston/valve seat (109) in a
vise, and torque the piston rod (29) to the piston
valve seat to 40 to 60 ft.-lbs (54 to 81 N•m).
20. Clamp the air motor base (28) in a vise horizontally
by closing the vise jaws on the flange.
21. Thread the piston assembly tool (A) (included in
Repair Kit 238751) onto the threads of the
displacement pump cylinder (110). See F
IG. 5.
22. Insert the piston assembly (B) into the displacement
pump cylinder.
23. Remove the piston assembly tool from the
displacement pump cylinder.
NOTICE
To avoid damaging the cylinder wall, lower the
cylinder straight down onto the piston. Never tilt the
cylinder as it is being lowered.
FIG. 5

Graco 244846 Specifications

General

Brand	Graco
Model	244846
Category	Water Pump
Language	English