Taking The Unit Into Operation With Coating Material; Spraying Technique; Handling The High-Pressure Hose; Interruption Of Work - WAGNER HC950 Operating Manual

Starting operation
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HC970E
HC970E-SSP
4.6 Taking the unit into operation with coating
material
If the unit is located on a non-conductive surface
(e.g. a wood floor), earth the unit with an earthing
cable.
1. Push locking pin (fig. 14, item 1) and swivel material feed
pump into the coating material container.
2. Turn the pressure control knob (2) on the hydraulic pump to
the left (pressure reduction) until it stops.
3. Turn the relief valve handle (3) fully counterclockwise (k
Circulation).
4. Start the engine or turn on the electric motor.
a. To start the gas engine, refer to the engine manual.
b. To start the electric motor:
• For HC 950 units, move the switch to "1" (ON).
• For HC 970 units, first set the switch to "Y" and then to "∆" (ON).
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The direction of the rotation of the pulley must
correspond to the arrow (4) on the belt cover. If the
belt is running opposite 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.
5. 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 material feed
pump.
6. Turn the pressure control knob (2) to the right (pressure
increase) until coating material exits the return hose.
7. Turn relief valve handle (3) fully clockwise (p spray).
8. Pull the trigger of the spray gun, then set the desired
operating pressure by means of the pressure control knob (2).
9. The unit is ready to spray.
HC 950 • HC 970
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GB
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 minimize the paint mist.
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If very sharp edges result or if there are streaks in the
spray jet – increase the operating pressure or dilute
the coating material.
6.

Handling the high-pressure hose

The unit is equipped with a high-pressure hose specially suited for
piston pumps.
Danger of injury through leaking high-pressure
hose. Replace any damaged high-pressure hose
immediately.
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Never repair defective high-pressure hoses yourself!
The high-pressure hose is to be handled with care. Avoid sharp
bends and folds: the smallest bending radius is about 20 cm.
Do not drive over the high-pressure hose. Protect against sharp
objects and edges.
Never pull on the high-pressure hose to move the device.
Make sure that the high-pressure hose cannot twist. This can be
avoided by using a Wagner spray gun with a swivel joint and a hose
system.
When using the high-pressure hose while working
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on scaffolding, it is best to always guide the hose
along the outside of the scaffolding.
The risk of damage rises with the age of the high-
pressure hose. Wagner recommends replacing high-
pressure hoses after 6 years.
Use only WAGNER original-high-pressure 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 43, point 11.2.
If a non-standard tip is installed, proceed according to the
relevant operating manual.
7. Leave the suction tube immersed in the coating material or
immerse it in the corresponding cleaning agent.
If fast-drying or two-component coating material is
used, ensure that the unit is rinsed with a suitable
cleaning agent within the processing time.
Attention
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Interruption of work