Ball Check Valve Repair - VERDER VERDERAIR VA 40 Instructions-Parts List Manual

Service

Ball Check Valve Repair

Tools Required
D Torque wrench
D 13 mm socket wrench
D O-ring pick
Disassembly
NOTE: A Fluid Section Repair Kit is available. Refer to
page 23 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.
Also, on some models, replace the o-rings (202).
Warning
To reduce the risk of serious injury whenever you are
instructed to relieve pressure, always follow the Pressure
Relief Procedure on page 9.
1. Relieve the pressure. Disconnect all hoses.
2. Remove the pump from its mounting.
3. Using a 13 mm socket wrench, remove the four
bolts (106) holding the outlet manifold (103) to the fluid
covers (101). See Fig. 10.
4. Remove the o-rings (202, not used on some models),
seats (201), and balls (301) from the manifold.
5. Turn the pump over and remove the inlet manifold (102).
Remove the o-rings (202, not used on some models),
seats (201), and balls (301) 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
Fig. 10. Be sure the ball checks are assembled exactly
as shown. The arrows (A) on the fluid covers (101) must
point toward the outlet manifold (103).
16 819.4334
1
Torque to 14–17 NSm. See Torque Sequence, page 28.
2
Arrow (A) must point toward outlet manifold (103).
3
Not used on some models.
4
Beveled seating surface must face ball (301).
106
1
Fig. 10
103
301*
201*
4
202*
3
101
A
2
301*
201*
4
202*
3
102
106
1
03272B