Prodigy HDLV Generation II Pump, Pump Manifold, and Circuit Board
36
Part 1081195-11
E
2018
Nordson Corporation
Repair
WARNING:
Allow only qualified
personnel to perform the following tasks.
Follow the safety instructions in this
document and all other related
documentation.
To reduce downtime, keep a spare manifold in
stock to install in place of one being repaired.
Refer to
Manifold Parts
information.
Repair of the manifold is limited to
S
cleaning or replacing the flow control valves
S
replacing the solenoid valves
Field replacement of other parts is not possible,
due to the need to calibrate the manifold at the
factory using equipment not available in the field.
Preparation
WARNING:
Shut off and relieve system
air pressure before performing the
following tasks. Failure to relieve air
pressure may result in personal injury.
WARNING:
Shut off and lock out system
electrical power before performing the
following tasks. Failure to observe this
warning may result in personal injury.
NOTE:
Tag all air tubing and wiring harnesses
before disconnecting them from the manifold.
CAUTION:
Do not disconnect the
transducer air tubing from the circuit
board. The transducers are very delicate
and will break if the air tubing is
removed.
1. Disconnect all air tubing from the manifold.
CAUTION:
The circuit board is an
electrostatic sensitive device (ESD). To
prevent damage to the board while
handling it, wear a grounding wrist strap
connected to the pump panel or other
ground.
2. Disconnect the flow control valve and solenoid
valve wiring harnesses from the circuit board
below the manifold.
3. Remove the pump from the pump panel.
4. Remove the two screws securing the manifold
to the mounting bracket. Take the manifold
assembly to a clean work surface.
Flow Control Valve Kit Cleaning
A dirty air supply can cause the flow control valves
to malfunction. Follow these instructions to
disassemble and clean the flow control valves.
1. See Figure 29. Remove the nut (1) and coil (2)
from the flow control valve.
2. Remove the two long screws (10) to remove the
flow control valve from the manifold.
CAUTION:
The valve parts are very
small. Be careful not to lose any parts.
Do not mix the springs from one valve
with those from another. The valves are
individually calibrated with the springs
installed.
3. Remove the two short screws (3), then remove
the valve stem (4) from the valve body (7).
4. Remove the valve cartridge (6) and spring (5)
from the stem.
5. Clean the cartridge seat and seals, and the
orifice (9) in the valve body. Use low-pressure,
compressed air. Do not use sharp metal tools
to clean the cartridge or valve body.
6. Install the spring and then the cartridge in the
stem, with the plastic seat on the end facing
out.
7. Make sure the O-rings furnished with the valve
are in place on the bottom of the valve body.
8. Secure the valve body to the manifold with the
long screws, making sure the arrow on the
valve body points toward the solenoid valves.
9. Install the coil on the stem, with the coil wiring
pointing away from the solenoid valves. Secure
the coil with the nut.
