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Spraying technique
The direction of the rotation of the pulley
must correspond to the arrow (4) on the
belt cover. If the belt is running opposite
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the direction of the arrow: Switch unit to
"O" (OFF). Unplug power plug and turn
the polarity changer (5) in the power plug
by 180º with a screwdriver. Plug in power
plug again.
6. Move the hydraulic ball valve (6) on the material feed
pump to its vertical position (open). This will switch on
the hydraulic motor.
Hydraulic oil flows to the hydraulic motor of the materi-
al feed pump.
7. Turn the pressure control knob (2) to the right (pres-
sure increase) until coating material exits the return
hose.
8. Turn relief valve handle (3) fully clockwise (p spray).
9. Pull the trigger of the spray gun, then set the desired
operating pressure by means of the pressure control
knob (2).
10. The unit is ready to spray.
5.
Spraying technique
Move the spray gun evenly during the spraying process.
Otherwise the spray pattern will be uneven. Carry out the
spray movement with the arm, not with the wrist. Observe
a parallel distance of approx. 30 cm between the spray
gun and the object of spraying. The lateral edge of the
spray jet should not be too distinct. The spray edge
should be gradual in order to facilitate overlapping of the
next coat. Always move the spray gun parallel and at an
angle of 90° to the surface to be coated in order to mini-
mize the paint mist.
If very sharp edges result or if there are
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streaks in the spray jet – increase the op-
erating pressure or dilute the coating ma-
terial.
6.
Handling the high-pressure
hose
Avoid sharp bending or kinking of the high-pressure
hose. The smallest bending radius amounts to about 20
cm.
Do not drive over the high-pressure hose. Protect against
sharp objects and edges.
Danger of injury through leaking high-
pressure hose. Replace any damaged
high-pressure hose immediately.
Never repair defective high-pressure
Danger
hoses yourself!
HC 920 • HC 940 • HC 960
GB
6.1 High-pressure hose
The unit is equipped with a high-pressure hose specially
suited for piston pumps.
Use only WAGNER original-high-pressure
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hoses in order to ensure functionality,
safety and durability.
7.
Interruption of work
1. Move the hydraulic ball valve on the material feed
pump to its horzontal position (closed).
Flow of hydraulic oil to hydraulic motor of material feed
pump is interrupted.
2. Turn the relief valve handle (3) fully counterclockwise
(k Circulation).
3. Turn off the gasoline engine or electric motor.
4. Pull the trigger of the spray gun in order to release the
pressure from the high-pressure hose and spray gun.
5. Secure the spray gun, refer to the operating manual of
the spray gun.
6. If a standard tip is to be cleaned, see page 57, point
13.2.
If a non-standard tip is installed, proceed according to
the relevant operating manual.
7. Leave the suction tube immersed in the coating materi-
al or immerse it in the corresponding cleaning agent.
If fast-drying or two-component coat-
ing material is used, ensure that the
unit is rinsed with a suitable cleaning
agent within the processing time.
Attention
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 57, point 13.2.
If a non-standard tip is installed, proceed according to the
relevant operating manual.
1. Push locking pin and swivel material feed pump out of
coating material.
2. Pull the trigger of the spray gun in order to pump the
remaining coating material from the suction tube,
high-pressure hose and the spray gun into an open
container.
Cleaning the unit (shutting down)
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