Ball Check Valves - Graco Husky 715 Instructions And Parts List

Tools Required
Torque wrench
9/16" socket wrench
O-ring pick

Ball Check Valves

NOTE: A Fluid Section Repair Kit is available. See
page 25 for the correct kit. Parts included in the kit are
marked with an asterisk, for example (301*). Use all
the parts in the kit for the best results. Always replace
the o-rings (113) with new ones whenever they are
removed for any reason.
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 10.
1. Relieve the pressure. Disconnect all hoses.
2. Remove the pump from its mounting.
3. Unscrew the four bolts (105), washers (107), and
nuts (106) holding the top manifold (102) to the
covers (101). Lift the manifold off the pump. See
Fig. 16.
4. Remove the outer o-ring (113), ball stop (202), ball
(301), ball guide (201), and inner o-ring (113) from
each of the covers (101).
5. Turn the pump over. Remove the bolts (105), nuts
(106), feet (108), and bottom manifold (102).
6. Remove the outer o-ring (113), ball guide (201),
ball (301), ball stop (202), and inner o-ring (113)
from each of the covers (101).
7. Clean all parts. Inspect parts and replace worn or
damaged ones.
8. Reassemble. Follow all notes in Fig. 16. Be sure
the ball checks are assembled exactly as shown.
Service
Torque to 3–6 ft–lb (4–8 N.m)
Fig. 16
105
107
102
113*
202*
301*
201*
113*
106
101
106
113*
202*
301*
201*
113*
102
108
105
04057