Servicing; General Servicing; High-Pressure Hose; Repairs At The Unit - WAGNER ProSpray 30 Operating Manual

Servicing

10. Servicing

10.1 General servicing

Servicing of the unit should be carried out once annually by the
WAGNER service.
1. Check high-pressure hoses, device connecting
line and plug for damage.
2. Check the inlet valve, outlet valve and filter for wear.

10.2 High-pressure hose

Inspect the high-pressure hose visually for any notches or
bulges, in particular at the transition in the fittings. It must be
possible to turn the union nuts freely.

11. Repairs at the unit

Switch the unit OFF.
Before all repair work: Unplug the power
plug from the outlet.
Danger

11.1 Relief valve

1. Use a drift punch of 2 mm to remove the grooved pin (Fig.
12, Item 1) from the relief valve handle (2).
2. Remove the relief valve handle (2) and cam base (3).
3. Using a wrench, remove the valve housing (4).
4. Ensure that the seal (5) is seated correctly, then screw the
new valve housing (4) completely into the filter block (6).
Tighten securely with a wrench.
5. Align the cam base (3) with the hole in the filter block (6).
Lubricate the cam base with grease and slide on the cam
base.
6. Bring the hole in the valve shaft (7) and in the relief valve
handle (2) into alignment.
7. Insert the grooved pin (1) to secure the relief valve handle
in position.
38
6
5
4
3
7
2
GB

11.2 Inlet and outlet valve

1. Remove the four screws in the front cover and then
remove the front cover.
2. Switch the unit ON and OFF so that the retaining ring (Fig.
13, Item 1) on the connecting rod is visible below the guide
(2).
Danger
3.
Danger
4. Pull off clamp on suction tube and remove return hose.
5. Unscrew the connection hose (Fig. 14, Item 1) to the high-
pressure filter.
1
6. Swivel the unit 90° to the rear in order to work more easily
on the material feed pump.
Danger of crushing - do not reach with the
fingers or tool between the moving parts.
1
Unplug the power plug from the outlet.
3
9
8
7
6
5
4
2
Repairs at the unit
2
1
ProSpray 30 • 34