Prodigy HDLV Generation II Pump, Pump Manifold, and Circuit Board
33
Part 1081195-11
E
2018
Nordson Corporation
Corrective Action
Possible Cause
Problem
11. Control manifold is
bad, requires repairs
(determined by
suction check B)
Pump manifold valves 2 and 5 are
contaminated with powder
Remove and inspect the valves. If
they are contaminated, blow out the
manifold and replace the valves.
NOTE:
If using an old harness with
three positions, use the supplied
adapter. If using a new harness with
two positions, the supplied adapter
can be discarded.
Vacuum generator is blocked
Remove and inspect the vacuum
generator venturi nozzle. If it is
blocked, blow it out or replace the
vacuum generator.
1. Remove the vacuum generator at
the manifold. Check for vacuum
with your finger.
2. Remove the vacuum generator
vent hose at the bottom of the
cabinet (inside). Trigger the spray
gun on. Check for exhaust and
increase the powder flow.
3. Check for proper direction of the
check valve.
A
−
Delivery Check
Correct vacuum reading: 9
−
14 in. Hg
The problem is not in the pump or the control
manifold. Check for problems in delivery tubing or
suction tubing.
1. Reconnect the delivery tubing to the pump.
2. Trigger the spray gun and observe the
vacuum gauge. The correct vacuum
reading ranges from 9
−
14 in. Hg.
If the problem is in the delivery tubing or
spray gun:
1. Clean or replace the delivery tubing.
2. Check the spray gun lock nut O-ring and
replace it if it is missing or damaged.
3. Remove the nozzle and powder tubing
adapter from the spray gun and clean or
replace it.
If the problem is in the suction tubing,
fittings, pickup tube, or powder:
1. Connect the suction tubing as shown in
2. Trigger the gun and observe the powder
flow.
S
If the problem disappears, then check the
suction tubing fittings and adapter O-rings.
Clean the pickup tube. For
Color-on-Demand systems, proceed to
S
If the problem persists, the suction tubing is
blocked. Replace the suction tubing.
