Cleaning - Routine; Repairs/Replacements; Replacement Of Defective Needle Seal Packings - WALTHER PILOT PILOT WA XV Betriebsanleitung

3. Use a suitable cloth with a compatible cleaning solution to clean the gun body
and all remaining parts.
4. Apply a thin film of the appropriate grease type/grade to the:
• sealing collar of the piston
• O-ring of the piston
• material control needle
• needle spring
• inside of the gun body
Make sure to use a non-acidic, non-resinogenic grease type/ grade and apply same
with a soft brush. Assemble the spray gun in reverse order.
6.3

Cleaning - Routine

The spray gun need not necessarily be dismantled for cleaning if and when the
spraying medium is changed in regular intervals or upon termination of work (depen-
ding, of course, an the material used).
Notice
lt is recommended practice to clean and lubricate the spray gun frequently in accor-
dance with Chapter 6.2 Cleaning - Complete, as this will greatly help towards ensu-
ring a Jong service life and functional reliability.
The following requirements must be met before the routine cleaning work can be
performed:
• the material tank must be clean and then filled with a compatible cleaning solu-
tion.
• cleaning solution should neuer be sprayed - yet the material pressure must be
available at the gun.
The spraying system must be in Operation if a spray gun is to be cleaned.
1. Take the spray gun into Operation (see 5.2 Starting / Stopping Requirements).
2. Do not stop the spray gun until clear cleaning solution emerges from the nozzle.
Only WA XV needle-pull / WA XV-HVLP
The material Input can be released by hand so that the complete spraying system
must not be taken into operation.
1. Pull the disk  at the end of the spray gun back.
The material inlet is now open and both the
material duct and the material needle will be
washed clean.
2. Do not let go of the disk  until clear cleaning
solution emerges from the nozzle.
All pressures should now be removed from the
complete spraying system - which should be left in
this condition until it is taken into operation again.
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7 Repairs / Replacements
Warning
Prior to any repairs/replacements: Make sure that the spray gun is in unpressurised con-
dition, i.e. all air and material inputs must be shut off - if not, imminent Risk of Injury.
7.1

Replacement of defective Needle Seal Packings

10.
1.
2.
3.
4.
5.
6.
7.
8.
9.
Lubricate the new needle seal packing with a non-acidic, non-resinogenic
grease type / grade.
11. Install the new needle seal packing in the gun body.
Installation of the remaining parts in reverse order.
Caution
Never reinstall a used needle seal packing as, otherwise, the functional sealing relia-
bility of the spray gun will suffer.
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Remove all pressures from the gun -see
5.2 Starting / Stopping Requirements.
Pull the white protective cover  off the
gun body.
Unscrew the hex. nut  with a Size 7 mm
wrench.
Pull the "USIT" ring  off.
Pull the gun front attachment  carefully
off the gun body
Remove the gasket  - and replace same
if damaged.
Unscrew the packing seal  with a Size
11 mm from the gun front attachment.
Remove the compression spring 
(replace if damaged) and the counter
bush  from the threaded socket.
Remove the needle seal packing  from
its seat - use a strong wire with one end
bent to form a small hook.