Service
Ball Check Valve Repair
1
Torque to
Tools Required
DTorque wrench
D10 mm socket wrench
D
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.
WARNING
To reduce the risk of serious injury whenever you are instructed to relieve pressure, always follow the Pressure Relief Procedure on page 12.
1.Relieve the pressure. Disconnect all hoses.
2.Remove the pump from its mounting.
3.Using a 10 mm socket wrench, remove the eight bolts (106), and four washers (113), holding the outlet manifold (103) to the fluid covers (101). See Fig. 11.
4.Remove the seats (201), balls (301), and
NOTE: Some models do not use
5.Turn the pump over and remove the bolts (112), washers (114), and inlet manifold (102). Remove the seats (201), balls (301), and
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. 11. Be sure the ball checks are as- sembled exactly as shown. The arrows (A) on the fluid covers (101) must point toward the outlet manifold (103).
18 308550
2Arrow (A) must point toward outlet manifold (103).
3Not used on some models.
106 1
113
103
301*
201*
202* 3
101
A 2
301*
201*
202* 3
102
114
1112
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Fig. 11 | ||
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