OBSOLETE
21-37 Issued 7/96
6
Connections and Controls
Table 1 describes each input and control of the WM-1 spray gun. Numbers in the Connections and Controls
column correspond to the numbers on
Table 1 Connections and Controls
Connections and Controls
Functions
7. Thumb wheel (pattern/horn)
Varies the pattern/horn air flow of the spray gun
NOTE:
Turning the thumb wheel downward increases the flatness of the spray
pattern on a standard nozzle or narrows the cone pattern on a conical nozzle. Both
increase atomization.
13. Fitting
Attaches a grounding air hose to the WM-1 spray gun
14. Trigger lock
Prevents trigger movement
NOTE:
Sliding the trigger stop all the way up prevents trigger movement. Sliding the
trigger stop all the way down enables trigger movement.
15. Trigger
Controls coating material flow from the WM-1 spray gun
NOTE:
Always draw the trigger fully during WM-1 spray gun operation.
Installation
Standard Nozzle Installation
1. Trigger the WM-1 spray gun. Thread the fluid tip
into the extension (5). Use the Nordson supplied
wrench to secure the fluid tip.
2. Place the air cap (19) on the fluid tip (18) and the
retaining ring (1) over the air cap. Position the air
cap and hand-tighten the retaining ring onto the
extension (5).
Conical Nozzle Installation
1. Trigger the WM-1 spray gun. Thread the valve
seat (4) into the extension (5). Use an open-end
wrench to secure the valve seat.
2. Set the nozzle (3) on the valve seat. Place the
cap (2) over the nozzle. Hand-tighten the retaining
ring (1) onto the extension (5).
Hose Connections
Perform these steps if you ordered the WM-1 spray
gun with hoses, part 176 526:
1. Route and connect the fluid hose (10) to your
Iso-Flo HD unit.
2. Route and connect the grounding air hose (11) to
the air supply regulator.
