Replacement Of Defective Needle Seal Packing; Replacement Of Material Nozzle, Needles And Seals - WALTHER PILOT XIII Instructions De Service

7 Repairs / Replacements
Warning
Control and atomising air as well as material inputs must be shut off prior to retooling
- risk of injury.
Note
Please refer to the exploded view at the beginning of this manual to perform the
steps detailed below.
7.1

Replacement of Defective Needle Seal Packing

1. Remove the material needle (see 5.5 Retooling the Spray Gun).
2. Unscrew the compression gland (Item 9) from the gun body.
4. Remove the needle seal packing (Item 6) (Use a thin wire, one end of which is
bent into a hook, for this purpose).
Reassembly of replacement parts is performed in reverse order.
Note
The needle seal packings which have been removed from the gun should not be re-
used, since the sealing properties may be impaired.
7.2

Replacement of Material Nozzle, Needles and Seals

Dismantle the spray gun in accordance with 5.5 Retooling the Spray Gun:
Note
All moveable and sliding parts should be lubricated with a non-acidic, non-resinoge-
nic grease prior to assembly.
Repair Kit:
A repair kit is available from WALTHER for the hand-held spray gun PILOT XIII con-
taining a set of all wearing parts. In the parts list all wearing parts are printed in bold.
Item No. Repair Kit: V 16 013 03 . . 3
Repair Kit:
A repair kit is available from WALTHER for the hand-held spray gun PILOT XIII-N
containing a set of all wearing parts. In the parts list all wearing parts are printed in
bold.
Item No. Repair Kit: V 16 014 03 . . 3
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8 Troubleshooting
Warning
Prior to any servicing and repair work the spray gun should be inunpressurised
state, i.e. all control air and atomising air pressure as well as all material inputs
must be shut off - risk of injury.
Fault Cause
Material nozzle or needle is
clogged
Material needle or nozzle is
damaged
Foreign body in material
nozzle
Gun is dripping
Compression gland (Item 9)
too tight
Needle spring (Item 23)
defective, maybe broken
Adjusting screw (Item 21)
turned too far back
Level in material tank too low
Pressure feed cup or gravity
Pulsating or unstea-
feed cup tilted too much
dy jet
Material nozzle (Item 3) loose
or damaged
Air leakage at gun Valve cone (Item 31) leaking
head, gun keeps
blowing when in off- Valve shank (Item 32)
position sluggish
Material leaking at Gland not tight enough
compression gland
(Item 9) Needle packing (Item 6) worn
Spray jet one-sided Horn boring soiled at air cap
Remedy
Remove material needle or
nozzle and clean
Replace material needle or
nozzle
Remove nozzle and clean
Loosen slightly
Remove material needle and
replace spring
Tighten adjusting screw
(to the right)
Top-up material level (cf.
Manufacturer's instructions )
Keep it level
Tighten, maybe replace
air distribution ring (Item 4)
Remove and replace
Remove and replace
Tighten
Replace needle packing
Remove and clean
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