Binks 2100 SERIES, Service Manual

77-3046-R2.2  (9/2014)

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In normal operation, the wings on 
the nozzle are horizontal as 
illustrated here. This provides  
a vertical fan shaped pattern which 

gives maximum 
coverage as the 
gun is moved 
back and forth 
parallel to the 
surface being 
finished.

Spray width adjustment: Turn clock-
wise for round, counterclockwise for fan.
Fluid control screw: Turn clockwise to 
decrease flow, counterclockwise to 
increase flow.
As width of spray is increased, more 
material must be allowed to pass through 
the gun to obtain the same coverage on 
the increased area.

SIPHON SPRAYING

Set atomization pressure at approximate-
ly 50 PSI for lacquer and 60 PSI for 
enamel. Test spray. If the spray is too 
fine, reduce the air pressure or open fluid 
control screw. If the spray is too coarse, 
close the fluid control screw. Adjust the 
pattern width and repeat adjustment of 
spray if necessary.

PRESSURE SPRAYING

After selecting correct size fluid orifice, 
set fluid pressure for desired flow. Open 
atomization air and test spray. If spray is 
too fine, reduce air pressure. If spray is 
too coarse, raise air pressure. Adjust pat-
tern width and repeat adjustment of spray. 
Keeping fluid control screw in open posi-
tion will reduce fluid needle wear.

The spray pattern of  
the Binks gun is variable 
from round to flat with 
all patterns in between.

Spray width 

adjustment

Fluid  

control 

screw

The first requirement for a good resultant finish is 
the proper handling of the gun. The gun should be 
held perpendicular to the surface being covered and 
moved parallel with it. The stroke should be started 
before the trigger is pulled and the trigger should 
be released before the stroke is ended. This gives 
accurate control of the gun and material.  
The distance between gun and surface should be 6 
to 12 inches depending on material and atomizing 
pressure. The material deposited should always be 
even and wet. Lap each stroke over the preceding 
stroke to obtain a uniform finish.

NOTE

To reduce overspray and obtain maximum efficiency, always 

spray with the lowest possible atomizing air pressure.

Coating should be even

and wet when spraying

Coating will

be light at 

this point

Coating will

be heavy

at this point

Start

stroke

Pull

trigger

Release

trigger

End of

stroke

RIGHT

WRONG

TRAVEL OF GUN

6 to 12 inches

GUN HANDLING

It is extremely poor practice to mount the oil and 
water extractor on or even near the compressor unit. 
The temperature of the air is greatly increased as it 
passes through the compressor and this compressed 
air must be cooled before the moisture in it will 
condense. If the air from the compressor is still 
warm when it passes through the oil and water 
extractor, moisture will not be effectively removed, 
but will remain in suspension. Then, when the air 
cools in the hose beyond the extractor, the moisture 
will condense into drops of water and cause trouble.

Air lines must be properly drained

Pitch all air lines back towards the compressor so 
that condensed moisture will flow back into the air 
receiver where it can be removed by opening a 
drain. Every low point on an air line acts as a water 
trap. Such points should be fitted with an easily 
accessible drain. See diagram.

AIR SUPPLY