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Step 5: close the two material valve at the same time, however, the pressure showed in the pressure gauge
of raw materials should be equal to each other, if not, open the material valve in higher pressure side
slightly so that the raw materials will flow out until the two pipes approximately at the same pressure.
Step 6: deal with the waste reasonably and securely.
Step 7: clean up the residual materials on the conveying material pieces and coat with grease, after that re-
assemble the conveying pieces in the gun. Fastening the bolt of the conveying pieces evenly, so that the two
friction on both sides of the gun being in close contact with the tip and to sure there is no air and material
leakage and the tip acts flexibly.
Step 8: straighten the conveying pipe group to avoid uneven heating and damage the internal heating wire,
Push the self-lock button for heating to its lower position to power on the heating system.
Step 9: Set the heating temperature for the black and the white material heaters and the heat preservation
hose line according to the description of 4.8 for temperature controller setting. Increase the air source
pressure of the main machine to the working value only after the temperature reaches the preset value.
Note: Due to expansion of the combined polyhydric alcohol when heated, the main air source pressure of
the JHPK-H30 spray system can’t be set at working pressure before operating to avoid damage of the
pressure gauge even pipe burst caused by the heating of the raw materials in the pipeline.
Step 10 , regulate the air source pressure to 0.5-0.7Mpa by adjusting the air source pressure valve of the
host. (Reference value)
Step 11, firstly open the air inlet switch on the gun body and then open the material valve on the two
conveying material pieces.
Step 12, at the moment, the entire system has been ready for running as just pulling the trigger can spray
materials.
Note: The material valve should be shut off when you stop operation, so that prevent the emission of raw
materials caused by mal-operation.
5.3. Daily shutdown steps:
Note: Be sure that the reset/work change-over switch have been switched to reset position when each
shutdown, Pull the lock bolt to release material (pressure release) while keeping the booster pump working.
When the booster pump shaft runs to the designed protection location, the pump will stop working. Then,
release the bolt and switch off the main machine air source.At the same inspect the sprinkler gun to
prevent the gun from unable to operate again because of the damage of seals inside the gun occurred in
using which may causing materials leakage and solidify in the gun.
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