Ball Check Valve Repair - Graco Husky 2150 Instruction Manual

Ball Check Valve Repair

Tools Required
 Torque wrench
 10 mm socket wrench
 O-ring pick
Disassembly
NOTE: A Fluid Section Repair Kit is available. Refer to
page 26 to order the correct kit for your pump. Parts
included in the kit are marked with an asterisk, for
example (201*). Use all the parts in the kit for the best
results.
NOTE: To ensure proper seating of the balls (301),
always replace the seats (201) when replacing the balls.
NOTE: (Extension Version) To ensure proper sealing of
extension (115), always replace o-rings (116) when
replacing the balls.
1. Follow the Pressure Relief Procedure Warning on
page 12. Disconnect all hoses.
2. Remove the pump from its mounting.
3. Using a 10 mm socket wrench, remove the four bolts
(106) holding the outlet manifold (103) to the fluid
covers (101). See Fig. 10.
4. Remove the seats (201), balls (301), and o-rings
(202) from the manifold.
NOTE: Some models do not use o-rings (202).
5. Turn the pump over and remove the inlet manifold
(102). Remove the seats (201), balls (301), and
o-rings (202) from the fluid covers (101).
Reassembly
1. Clean all parts and inspect for wear or damage.
Replace parts as needed.
2. Reassemble in the reverse order, following all notes
in F . 10. Be sure the ball checks are assembled
IG
exactly as shown. The arrows (A) on the fluid covers
(101) must point toward the outlet manifold (103).
18 308368
Service
1 Apply medium-strength (blue) thread locker to the
threads. Torque to 120 to 150 in-lb (14 to 17 N
aluminum pumps. Torque to 190-220 in-lb (22-25 N
on ductile iron and stainless steel pumps. See Torque
Instructions on page 32.
2
Arrow (A) must point toward outlet manifold (103).
3
Not used on some models.
4
Beveled seating surface must face ball (301).
2 5 Used on stainless steel model only.
F . 10__________________________________________
IG
117
Extension
Models Only
103
*301
106
1
*201
*202
103
*301
101
*201
4
*202
3
106

m) on

m)
115
116
TI2233A
101
113
5
A
2
301*
201*
4
202*
3
102
1
TI0352B