Trouble Shooting; Needle Spring; Spring Retaining Bush; Material Nozzle - WALTHER PILOT PILOT I Instructions De Service

Clean the spray gun
• before each change of spraying material
• at least once a week or
• several times a week if required by the spraying medium and depending on the
degree of fouling.
Detailed
Cleaning
1. Disassemble the spray gun.
2. Clean the air cap and the material nozzle with a soft brush and cleaning fluid.
3. Clean all other components and the gun body with a soft cloth and cleaning fluid.
4. Coat the following parts with a thin layer of grease:

• needle spring

• all sliding parts and bearing points.
The moving internal parts must be greased at least once a week.
The springs should always be coated with a thin layer of grease. For this, always use
a non-acidic, non-resinogenic grease and a soft brush.Assemble the gun again in
reverse order.
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Trouble shooting

Warning
Prior to any retooling the spray gun should be depressurized state, i. e. atomising air
as well as the material pressure - risk of injury.
Fault Cause
Material Needle or Nozzle is fouled
or damaged
Needle Spring (Item 14) defective, i.
e. damaged or broken
Gun drips
Valve Packing Gland (Item 27) is
too tight
Spring Retaining Bush (Item 17) tur-
ned too far backwards
Material Leakage Valve Packing Gland is too loosen
at Valve Packing
Gland Needle Seal Packing (Item 26) is
worn
Gun keeps blowing Valve (Item 11) leaks
in off condition
Material level in Gravity Feed Cup
too low
Spray Jet pulsating
Gravity-Feed Cup held at excessive
or unsteady
working angle
Material Nozzle (Item 3) is too loose
Spray Jet onesided Air Cap (Item 1) is fouled
Material bubbles in Material Nozzle is too loose

Gravity-Feed Cup

(Item 3)
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Remedy
Clean or replace
(see 7 Retooling ...)
Remove and replace
Remove Material Needle (see 7.2)
and loosen the Valve Packing Gland
slightly with a screw driver
Turn in the Spring Retaining Bush
slightly with a wrench 14
Tighten Valve Packing Gland
Replace Needle seal Packing (see 7.3)
Replace Valve
Top-up material level
Keep it level
Tighten the Material Nozzle
Remove and clean
Tighten the Material Nozzle and/or turn
Air Cap slightly backwards
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Disposal of cleaning and servicing substances

Waste spraying media and waste material from cleaning and servicing must be
disposed of in accordance with all applicable local and national regulations.
Warning
Observe the instructions issued by the manufacturers of the spraying and clea-
ning material at all times.The improper disposal of waste material endangers the
health of human beings and animals!
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Technical data

Weight: 330 g
Nozzle sizes available: 0.2 • 0.3 • 0.5 • 0.8 • 1.0 • 1.2 • 1.5 mm ø
Air Caps: Round Jet Air Cap
Wide/Flat Air Cap (on request)
max. Atomising Air Pressure: 8 bar
max. Operating temperature: 43°C
Noise Level
(measured at approx.
1 m from the spray gun) 72 dB (A)
Air Consumption
Input Pressure Air Consumption
1.0 bar 20 l / Min
2.0 bar 30 l / Min
3.0 bar 40 l / Min
4.0 bar 50 l / Min
5.0 bar 60 l / Min
6.0 bar 80 l / Min
Right to effect technical changes reserved.
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