Nordson Prodigy HDLV Pump Generation II, Руководство пользователя по изделию

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Prodigy HDLV Generation II Pump, Pump Manifold, and Circuit Board
32
Part 1081195-11
E
2018 Nordson Corporation
Corrective Action Possible Cause Problem
Powder delivery
problems: Surging,
fading, intermittent
flow, low flow ( cont.)
Problem with pump or pump
control manifold
Vacuum check (requires 0 − 30 in. Hg
vacuum gauge)
1. Purge the pump and spray gun.
Do not load a new color.
2. Set the kV output to 0. Set the
powder flow to 35%.
3. Disconnect the powder tubing
from the pump. Connect a
vacuum gauge to the suction
fitting or remove the fitting nut and
place your finger over the fitting.
4. Trigger the spray gun and watch
the vacuum gauge or feel for the
vacuum.
S
For correct vacuum readings
(9 − 14 in. Hg) on both sides of
pump (or you feel less vacuum on
one side of pump than the other),
proceed to procedure A on
page 33.
S
For low vacuum readings (less
than 8 in. Hg) on one side of
pump (or you feel less vacuum on
one side of pump than the other),
proceed to procedure B on
page 34.
S
For low vacuum readings (less
than 8 in. Hg) on both sides of
pump (or you feel weak or no
vacuum on both sides of pump
cycle), proceed to procedure B on
page 34.
10. Pump is bad, requires
repair (determined by
suction check B)
Fluidizing tube blinded or plugged Replace the fluidizing tubes.
See Figure 18 on page 19. Verify
O-ring #6 is in place. If missing,
powder buildup could occur in the
muffler.
NOTE: The filter discs must be
installed flush with the aluminum
body. If the discs are even slightly
raised, the gasket will leak, causing
the pump to malfunction.
Pinch valve leaking Replace the pinch valves and filter
disks.
Lower Y-block plugged Remove and clean the lower
Y-blocks.
Continued...