Nordson Compact Manual Iso-Flo Voltage-Block, Manual

Page: 59 / 76

Repair
6-1
E 1996 Nordson Corporation
All rights reserved
108 390B
Issued 7/96
Manual 10-10
Section 6
Repair
This section covers the repair of selected components.
WARNING: Allow only qualified personnel to perform the
following tasks. Observe and follow the safety instructions in
this document and all other related documentation.
The male and female couplings are repairable using the coupling repair
kits listed in section 7 of this manual. Only the parts included in the
repair kit and the safety pin in the male coupling are replaceable. If other
parts of a coupling are damaged, the entire coupling assembly must be
replaced. Instructions are included with the kits.
Repair is limited to disassembly, parts replacement, and reassembly.
1. See Figure 6-1 and Figure 2-1. Remove the flow sensor from the
Iso-Flo cabinet.
2. Unscrew the 4 socket-head cap screws (11).
3. Invert the sensor and gently remove the body (4) from the top.
4. Block all the ports in the body (4) except for the atomizing air output
port (5). Make sure you also block the air passage. (A fingertip is
adequate.)
5. Slowly apply compressed air at 20 − 30 psi (1.4 − 2 bar) to the atomizing
air output (5). This lifts the valve cartridge (8) out of the body (4).
6. Remove the O-ring (10) and apply O-ring grease. Grease the valve
cartridge (8) O-rings before reassembling the flow sensor. Be careful
not to cover the small holes on the cartridge with grease.
NOTE: If you install a new valve cartridge (8), discard the spring (6) that
comes with the valve cartridge and use the spring specified in the flow
sensor parts list. The ball (3) on top of the valve cartridge (8), shown in
Figure 6-1, must be ordered separately.
1. Introduction
2. Male and Female
Coupling Repair
3. Flow Sensor Repair