Service
Ball Check Valve Repair
Tools Required
•
Disassembly
• A Fluid Section Repair Kit is available. Refer to the Repair Kit Matrix parts section for the appropriate pump size so that the correct kit for your pump is ordered. Parts included in the kit are marked with an asterisk, for exam- ple (202*). Use all the parts in the kit for the best results.
•To ensure proper seating of the balls (301), always inspect the seats (201) when replac- ing the balls. Replace seats as necessary if seating surface shows evidence of wear. Also, replace the
To reduce the risk of serious injury, whenever you are instructed to relieve pressure, always follow the Pres- sure Relief Procedure on page 11.
1.Relieve the pressure. Disconnect all hoses.
2.Remove the pump from its mounting.
3.Remove the clamps (106) holding the outlet mani- fold (103) to the fluid covers (101). See FIG. 9.
4.Remove the
(301)from the manifold (103).
5.Turn the pump over and remove the inlet manifold
(102). Remove the
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 FIG. 9. Be sure the ball checks and manifolds are assembled exactly as shown. The arrows (A) on the fluid covers (101) must point toward the outlet man- ifold (103).
1Arrow (A) must point toward outlet manifold (103)
2Radiused seating surface must face the ball (301). Large chamfer on O.D. must face
103
113
301*
201 2
202*
101
A 1
301*
201 2
202*
113
102
TI8932a
FIG. 9
18 | 311879F |