Graco A Series Instructions

Repair
309577T 15
Reassemble the Pump
NOTE: Coat all non-thread sealed parts with ISO Pump
Oil before reassembly, to ease future disassembly.
1. Install the ball (16*) in the rod (1). Center the u-cup
(13*) on the rod (1). The lips of the u-cup must face
up. Use the piston (7) to evenly push the u-cup onto
the rod, then remove the piston. Slide the bushing
(14*) onto the rod (1). The wide end of the bushing
must face up, toward the u-cup.
NOTE: Sealing the patch on the piston threads is good
for four repackings. Use Loctite on the piston threads
after four repackings; be sure none gets on the ball.
2. Install the piston (7). Be careful not to damage the
sealing edges of the u-cup. Torque as specified
below.
3. Install the throat u-cup as follows:
a. Models 246831, 262647, 246832, 245971,
262648, 245972, 24Y174, and 24Y175: Grease
the u-cup (20*) and cylinder (2). Place the u-cup
in the cylinder with the lips facing down. Be
careful not to damage the sealing edges of the
u-cup. Install the packing nut (19) to properly
insert and align the u-cup, then remove the
packing nut.
b. Models 246830 and 245970: Grease the u-cup
(20*) and cylinder (2). Place the seal installation
tool (23*) in the cylinder. Place the u-cup in tool
with lips facing down. Be careful not to damage
the sealing edges of the u-cup. Press the u-cup
in place with 7/8 in. deep-well socket (S).
Remove the socket and tool.
4. Insert bushing (17*). Press bushing in place to seat
u-cup.
5. Assemble the packing nut as follows:
Model Torque
ft-lb (N•m)
246830 and 245970 24-30 (32-40)
246831, 245971, 262648, and
24Y174
47-53 (63-71)
246832 and 245972 95-105 (129-143)
TI2666b
1
16*
18*
*13
7
TI2818A
1
Lips face up.
1
14
246831, 262647, 245971,
262648, 24Y174, and
24Y175 only
Typical configuration
1
16*
7
14
TI2666a
TI2675A
19
20*
2
TI2818A-
1
Lips face down.
1
TI2700A
23*
20*
2
S
TI2669B
*17
2

Graco A Series Specifications

General

Brand	Graco
Model	A Series
Category	Water Pump
Language	English