Nordson Encore XL Powder, Manual

Page: 80 / 155

© 2021 Nordson Corporation
1607027-01
8-6 Repair
Clamping Cylinder Replacement
1. Perform steps 1-3 in
Latch Pawl Replacement.
2. See Figure 8-6 . Disconnect the air tubing from the cylinder flow control valves.
3. Retract the cylinder to gain access to the lever hardware.
4. Remove the clamp screws (5) on each lever assembly (4), then remove the cylinder
assembly (10), and lever assembly (4) from the manifold shaft (11).
5. Discard the old cylinder assembly (10) and lever assemblies (4).
6. Remove the proximity switches (6, 7) from the new cylinder assembly (10).
7. Center the new cylinder assembly (10) inside cylinder adapter spacer (12) with the
latches in fully open position and the cylinder fully retracted.
NOTE: Indentations in the lever assemblies (4) must be located facing inwards.
8. Using an M5 Allen wrench, attach the lever assemblies (4) to the manifold shaft (11)
ensuring that lever assemblies (4) remain centered and the latches will remain open.
NOTE: It may be necessary to re-clock the rod or slightly extend the cylinder to ensure
lever assemblies (4) attach properly with latches fully open.
9. Install proximity switches as follows:
• Extend (Engaged): LS403 − Install on rod end.
• Retract (Released): LS404 − Install on fixed end.
NOTE: Refer to the electrical schematic.
10. Push the cylinder rod into the cylinder assembly until it is fully retracted. Verify that
when the cylinder is retracted, the latches are fully open. Material may be ground off
of black delrin spacer if needed to adjust length.
11. Verify that when the cylinder is extended, the levers are making contact with the
clevises and the latches are fully closed.
12. Connect the air tubing to the appropriate cylinder flow control valves. Refer to the
pneumatic schematic foldout in this manual.
13. Turn on the feed center air supply.
14. Lower the lance onto the purge manifold and set the purge air pressure to zero. Refer
to
Air Pressure Settings
in the
Setup
section for the location of the purge air pressure
regulator.
15. Select Gun Purge on the control panel, and adjust the extend flow control valve for a
3 second extend. Turn Gun Purge off and adjust the retract flow control valve for a 3
second retract. Toggle Gun Purge on and off as needed while adjusting the valves.
16. Select Gun Purge and clamp the lance. Position the extend proximity switch (LS403):
a. Slide the switch on the cylinder until it senses the magnet in the cylinder piston and
the LED lights.
b. Note the position where the LED turned on, then continue sliding it in the same
direction until the LED turns off.
c. Position the switch in the midpoint between LED off positions and tighten the clamp
screw to secure it in place.