WAGNER ProSpray 26 Betriebsanleitung Seite 40

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) from the
pump manifold (6).
4. Ensure that the seal (5) is seated correctly, then screw the
new valve housing (4) completely into the pump manifold
(6). Tighten securely with a wrench.
5. Align the cam base (3) with the hole in the pump manifold
(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.
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5
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7
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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 then OFF so that the connecting
rod is positioned in the lower stroke position.
Danger of crushing - do not reach with the
fingers or tool between the moving parts.
Danger
3.
Unplug the power plug from the outlet.
Danger
4. Unit on high-rider cart:
Screw off the suction tube.
Unit on stand and low boy cart:
Remove the retaining clip from the connecting bend at the
suction hose and pull off the suction hose.
5. Screw off the return hose.
6. Swivel the unit 90° to the rear in order to work more easily
on the material feed pump.
7. Loosen and unscrew inlet valve housing (Fig. 13, Item 1)
from paint section housing with light blows from a hammer
or unscrew with an adjusting wrench.
8. Remove the lower ball guide (2), inlet valve ball (3), inlet
valve seat (4), O-ring (5) and lower seal (6).
9. Clean all the parts with the corresponding cleaning agent.
Check the inlet valve housing (1), inlet valve seat (4) and
inlet valve ball (3) for wear and replace the parts if
necessary. If the worn inlet valve seat (4) is unused on one
side, install it the other way round.
Repairs at the unit
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3
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ProSpray 26