Anest Iwata DDP 90 C WB, Instruction, Use And Maintenance Manual

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5.4 Prewash
1. Make sure the pump is installed correctly (see section 4.3).
2. Soak the dip tube into the washing liquid, or fill the hopper or the tank according to the model
used.
3. Put the three-way valve in the right position.
4. Adjust the inlet pressure between 2,0 and 7,0 bar.
5. Open gradually the two-way valve for paint recirculation (B on page 30). The washing liquid will
have to circulate through the dip tube recirculation pipe.
- If the DPS 90 2 D model is used, the washing liquid will circulate through the paint handling
system (JET STREAM).
- The DPS 90 36 D model recirculation pipe is directly connected to the hopper.
6. Close the two-way valve for paint recirculation and adjust the fluid pressure by means of PR 3E
(or PR5) regulator (Recommended pressure for washing 3.0 bar)
7. Press the gun trigger (or supply the automatic gun opening control with some air), without
spraying air and let the washing fluid circulate for some minutes.
8. Make sure the washing has been done and then discharge the pump residual liquid and stop it.
WARNING
THE PUMP MUST BE WASHED BEFORE USING IT FOR THE FIRST TIME, IF IT IS NOT
USED FOR A LONG TIME AND AFTER ANY COLOUR CHANGE.
5.5 Starting
Before beginning working, start the pump by following the instructions below:
1. For all models with suction pipe, dip it into the product tank to be pumped.
For the model with hopper, fill it with the product to be pumped.
For the models on tank, fill the product tank to be pumped.
2. Open the two-way valve for paint recirculation (Pos. B on page 30).
3. Lift and turn gradually the pressure reducer knob (Pos. H on page 30). Adjust it at a pressure sli-
ghtly higher than 2,0 bar, to enable the pump to release the air.
4. Close the two-way valve for paint recirculation (Pos. B on page 30) and release the air through
the gun, too.
5. Increase the pressure of the reducer connected to the pump (Recommended pressure about 5,0
bar).