Cleaning The Unit (Shutting Down); Cleaning Unit From Outside; Cleaning The High-Pressure Filter - WAGNER ProSpray 3.21 Original Operating Manual

8.

Cleaning the unit (shutting down)

A clean state is the best method of ensuring operation without
problems. After you have finished spraying, clean the unit. Under no
circumstances may any remaining coating material dry and harden in
the unit.
The cleaning agent used for cleaning (only with an igni tion point
above 21 °C) must be suitable for the coating material used.
• Secure the spray gun, refer to the operating manual of the
spray gun.
Clean and remove tip.
For a standard tip, refer to Page 19, Section 12.2.
If a non-standard tip is installed, proceed according to the relevant
operating manual.
1. Remove suction hose from the coating material.
2. Close the relief valve, valve position SPRAY (p spray).
3. Switch the unit ON.
4. Pull the trigger of the spray gun in order to pump the
remaining coating material from the suction hose, high-
pressure hose and the spray gun into an open container.
The container must be earthed in case of coating
materials which contain solvents.
Attention
Caution! Do not pump or spray into a container with
a small opening (bunghole)!
Refer to the safety regulations.
5. Immerse suction hose with return hose into a container with a
suitable cleaning agent.
6. Turn the pressure control knob into the blue zone - pulsating
pressure for unit cleaning.
7. Open the relief valve, valve position PRIME
(k circulation).
8. Pump a suitable cleaning agent in the circuit for a few
minutes.
9. Close the relief valve, valve position SPRAY (p spray).
10. Pull the trigger of the spray gun.
11. Pump the remaining cleaning agent into an open container
until the unit is empty.
12. Switch the unit OFF.
ProSpray 3.29 • 3.31
GB
8.1

cleaning unit from outside

First of all pull out mains plug from socket.
Danger of short circult through panetrating water!
Never spray down the unit with high-pressure or
high-pressure steam cleaners.
Attention
Do not put the high-pressure hose into solvents.
use only a wet cloth to wipe down the outside of the
hose.
Attention
Wipe down unit externally with a cloth which has been immersed in a
suitable cleaning agent.
8.2

Cleaning the high-pressure filter

Clean the filter cartridge regularly.
A soiled or clogged high-pressure filter can cause a poor spray
pattern or a clogged tip.
1. Turn the pressure regulator knob into the black zone until it
stops (no pressure).
2. Open the relief valve, valve position PRIME
(k circulation).
3. Switch the unit OFF.
unplug the power plug from the outlet.
4. Unscrew the filter housing (Fig. 9, Item 1). with a strap wrench.
5. Pull the filter cartridge (2) from the bearing spring (3).
6. Clean all the parts with the corresponding cleaning agent. If
necessary, replace the filter cartridge.
7. Check the O-ring (4), replace it if necessary.
8. Place the bearing ring (5) against the bearing spring (3). Slide
the filter cartridge (2) over the bearing spring.
9. Screw in filter housing (1) and tighten it as far as possible with
the strap wrench.
1
2
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Cleaning the unit (shutting down)
5
3
4