42
VERSION 02/2019
ORDER NUMBER DOC 2397374
TOPFINISH GM 1030P
11 FUNCTION TEST
After all repair work, the spray gun must be checked for safe condition before recommissioning.
The necessary scope of inspection and testing depends on the repair carried out and must
be documented by the repair personnel.
Assembly inspection
Activity
Means
1. Leak test
– Connect 1 bar; 0.1 MPa; 14.50 psi air pressure to the air connection and
product connection.
Air connection, 1 bar
Place the spray gun completely into the water bath and check all sealing
points with 4 bar; 0.4 MPa; 58 psi for leaks.
At 4 bar; 0.4 MPa; 58 psi, a slight leak can be tolerated.
Water bath
Injection and Final Inspection
Activity
Means
2. Trigger lever function test
– The trigger lever must be pulled as far as it will go.
Manual inspection
Make sure that the trigger lever can move slightly in its rest position.
3. Leak test
– Connect the spray gun, slowly increase the product pressure in increments
using a suitable medium until the maximum pressure (8 bar, 0.8 MPa; 116 psi)
specified on the spray gun is reached.
Visual inspection
– Trigger and flush the spray gun multiple times.
– Check the following:
– Is the product connection sealed when the gun is closed?
– Is the product valve sealed?
– Is there no product discharge at the valve rod seal?
Product connection, 8 bar
Air connection, 3 bar
Size 7 mm wrench for the
clamping sleeve
If product leaks, tighten clamping sleeve:
Clamping sleeve of the needle packing on the valve rod must be tightened.
If necessary, tighten the clamping sleeve with the wrench.
(In doing so, it is important to make sure that the valve rod still runs smoothly
and the gun closes reliably).
Activity
Means
4. Checking the switching sequence
– Mount nozzle and air cap nut.
Visual inspection
– Set the injection pressure to 8 bar; 0.8 MPa; 116 psi, pull the trigger slowly,
note the switching sequence "Switch on" and "Switch off".
Switch on: shaping air on, product on
Switch off: product off, shaping air off
5. Flush the spray gun
– Switch off the air and product supply, pull trigger lever and flush spray gun or
blow out with air.
Flush the gun without the valve and air cap.
In doing so, you can remove the air connection hose.
– When almost no more product comes out, remove the product connection
hose and blow the rest of the test medium out of the spray gun using an
air gun.
Summary of Contents for TOPFINISH GM 1030P
Page 1: ...B_06965 TOPFINISH GM 1030P Airspray manual gun for flat and round jet nozzles Version 02 2019...
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