Problem Solving; Dripping Colorant - CPS COLOR COROB D50 Manual Del Usuario

8 PROBLEM SOLVING

8.1 Dripping colorant

Colorant drips around the equipment can be the result of many things and a series of
steps must be taken to determine the solution to the problem.
Before performing these tests, please review operating procedures in the owner's
manual to ensure proper dispensing is being done.
These steps must be performed in following order:
1) Check nozzle Seal Arm/Tip for a collection
of colorant. A small amount of colorant will
collect on the nozzle sealing tip. Cleaning
of this area daily will ensure the collection
does not reach the point were colorant
drips from the nozzle sealing tip. Clean
this area daily (Figure 8-1).
2) Remove nozzle, clean thoroughly and
return to correct position.
3) Set dispensing gauge to maximum setting.
Raise plunger to the top. Let go of the
plunger with the valve closed. The plunger
handle should not move and should remain
stationary. Any movement in the plunger
indicates the presence of air in the cylinder
and the need to re-prime the pump. Air
present in the cylinder will not allow the
colorant to be drawn in properly and will
result in inaccurate dispenses and leaking
of colorant from the nozzle. Prime the
cylinder as per instructions on chapter 5.1.
4) Push plunger shaft down to the end cap.
With the valve closed, watch the nozzle for
drips. If a constant drip of colorant comes
from the nozzle, the valve housing or O-
rings or valve body are worn and
replacement is required. Replace per
instructions on chapter 0.
5) Raise the Plunger and fill the cylinder with
colorant. If there is a constant drip of
colorant from the nozzle, air is entering
the cylinder as result of worn Piston
Seals. Replacement of the Piston Valve
Assembly is required. Replace per
instructions on chapter 13.
Nozzle Tip seal
Figure 8-1
Figure 8-2
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