Nozzle (3) and Needle (16) – Remove
parts in the following order: 18, 17, 16, 1,
2 and 3. Check condition of Nozzle Seal
(4) and replace if necessary. Replace any
worn or damaged parts and re-assemble
tightening torque for nozzle (3) 16-20 Nm
(150-180 lbf in).
Packing – Remove parts 18, 17, 16.
packing (6). Fit new packing (6) and Nut
(7). Re-assemble parts 16, 17, and 18
and tighten Packing Nut (7) with spanner
sufficient to seal but to allow free
movement of needle. Lubricate with gun
Air Valve Seal Kit (K-5040)
Remove Adjusting Knob (18), Spring
(17), and Needle (16).
Loosen Housing (15).
Remove Housing (15) and Airvalve
Remove Spindle (13).
Using Service Tool (32), engage
groove behind the Valve Seat (12)
and remove Valve Seat.
Push out the Front Airvalve Seal
Turn the Gun upside down and let
the Seal fall out.
Fit New Front Seal (11) to Service
Fit new Seal to Gunbody and press
firmly to ensure Seal is engaged.
Fit New Valve Seat (12) to Service
Cleaning Brush – order 4900-5-1-K3
Pressure gauge Attachment – order HAV-501
Digital Pressure Gauge – DGI-501-BAR
Lubricant – order GL-1-K10
Spraygun cleaning Kit – KK-4584
Replacement of Parts
Remove Rear Airvalve Seal (11)
from housing (15) with a hooked
Fit new Seal to Service Tool and Fit
Seal to Housing (15).
Replace Spindle (13).
Replace Valve Spring (14), screw in
Housing (15) and tighten.
Screw reverse end of Service tool
into housing until fully engaged.
Tighten by hand to seat the Valve
Seat. Remove tool.
Fit Needle (16), Spring (17) and
Adjust Needle Packing (7) with
Spanner sufficient to seal but to
allow free movement of needle.
Lubricate with gun oil.
Spreader valve (10) – Caution: always
ensure that the valve is in the fully open
position by turning screw fully counter-
clockwise before fitting to body.
Air cap / Nozzle Selection
Refer to coating material manufacturers
recommendations or ITW Finishing UK
© 2005 ITW Finishing Systems and Products