Replacement Of Defective Needle Seal Packings; Replacement Of Nozzles, Needles, Springs And Seals - WALTHER PILOT PILOT WA XV Instructions De Service

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.
7 Repairs / Replacements
Warning
Prior to any repairs/replacements: Make sure that the spray gun is in unpressurized 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

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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 control
needle will be washed clean.
2. Do not let go of the disk until clear
cleaning solution emerges from the nozzle.
1. Remove all pressures from the gun -see 5.2
Starting / Stopping Requirements.
2. Pull the white protective cover off the gun
body.
3. Unscrew the hex. nut with a Size 17 mm
wrench.
4. Pull the "USIT" ring off.
5. Pull the gun front attachment carefully off
the gun body.
6. Remove the gasket - and replace same if
damaged.
7. Unscrew the packing seal
8. Remove the compression spring
9. Remove the needle seal packing
10. 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
reliability of the spray gun will suffer.
7.2

Replacement of Nozzles, Needles, Springs and Seals

For replacement of any of the following parts dismantle the spray gun in accordan-
ce with 5.5 Replacement of Material Control Nozzle and Needle:
• Material Control Nozzle
• Piston Spring
• Material Control Needle*
• Needle Spring*
• Piston Sealing Collar*
• Piston O-Ring*
Caution
Parts marked * must be lubricated with a non-acidic, non-resinogenic grease type /
grade prior to installation.
WALTHER Repair Kits are also available for WA XV and WA XV Needle-Pull spray
guns. Wearing parts are also shown (in boldface) in the Listing of Replacement
Parts.
WA XV:
Repair Kit-air side:
Repair Kit-material side:
with a Size
11 mm from the gun front attachment.
(re-
place if damaged) and the counter bush
from the threaded socket.
from
its seat - use a strong wire with one end
bent to form a small hook.
Art. No.: V 16 115 00 000
Art. No.: V 16 115 03 . . 3
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