Retooling Of Spray Gun - WALTHER PILOT PILOT WA XV Instructions De Service

5.5

Retooling of Spray Gun

Combinations of air control head, material control nozzle + needle, designed to
match specific spraying media types and grades, form a unit - namely the nozzle
insert assembly, which must always be interchanged as a complete assembly to
maintain the desired spray- finish quality standard.
Warning
Prior to retooling: make sure that the spray gun is in unpressurized condition, i.e. all
air and material inputs must be shut off - if not, imminent Risk of Injury.
Replacement of Air Control Head
Replacement of Material Control Nozzle and Needle
WA XV:
10
1. Unscrew the knurled air control head retai-
ning ring .
2. Pull the air control head off the gun front
attachment.
3. Position the required air control head an the
gun front attachment.
4. Screw the air control head retaining ring
onto the gun front attachment.
1. Remove all Pressures from the gun (see 5.2
Starting / Stopping Requirements).
2. Remove the air control head (see 5.5 Repla-
cement of Air Control Head).
3. Unscrew the material control nozzle
the gun front attachment (use a Size 12mm
wrench).
4. Unscrew the material Input regulating screw
.
5. Pull the two spring pins off.
6. Unscrew the spring retaining bush
Size 27 mm wrench).
Installation of the new nozzle insert assembly and of the remaining parts in rever-
se order.
WA XV Needle-pull:
from
(use a
Installation of the new nozzle insert assembly and of the remaining parts in rever-
se order.
7. Remove the compression spring
the gun body.
8. Remove the piston very carefully from
the gun body (use a suitable pair of pliers).
9. Remove the piston end nute from the con-
trol piston (use Size 13 mm and 22
mm wrenches). The material control
needle is now freely accessible and
can be pulled out.
10. Unscrew the two needle retaining nuts
1. Remove all pressures from the gun (see
5.2 Starting / Stopping Requirements).
2. Remove the air control head (see 5.5 Re-
placement of Air Control Head).
3. Unscrew the material control nozzle from
the gun front attachment (12 mm wrench).
4. Remove the cap screw and pull the wash-
er off.
5. Remove the material input regulating
screw.
6. Pull the needle spring out.
7. Pull the stop piston plus material con-
trol needle out.
8. Unscrew the material control needle
from the stop pin .
from
.
11