Nordson HORIZON 200, Product Manual

Page: 74 / 124

Repair
7-8
Part 106913 − 04
E 2018 Nordson Corporation
Feed Hopper Fluidizing Plate Replacement
These instructions are for the Nordson HTM hopper used with the Horizon
400 booth. The Horizon 200 booth uses a HR-16-150 round hopper. Refer
to the HR-16-150 hopper manual for fluidizing plate replacement
instructions.
WARNING:
Wear a NIOSH-approved respirator or dust mask and safety
glasses or goggles when handling powder or cleaning powder off
equipment. Avoid getting powder on your skin. Wash with soap and water
only.
Preparation
1. Pump the powder from the feed hopper. Disconnect the powder feed
hoses, transfer hoses, accumulator vent hose, and 10-tube
quick-disconnects from the feed hopper, powder pumps, and
accumulator.
2. Remove the level sensor from the feed hopper.
3. Unplug the sieve power and control cords (electrically driven sieves
only). Disconnect the feed hopper ground wire.
4. Remove the screws, washers, and nuts securing the feed hopper to the
direct vent plate. Roll the hopper to a clean work area.
5. Remove the remaining powder from the hopper and thoroughly clean
the hopper, accumulator, and sieve.
Fluidizing Plate Replacement
1. See Figure 7-4. Block up the fluidizing pan (5) so the pan and hopper
flanges will not bend when you start removing the clamping
channels (3).
2. Loosen the screws (4) about 6 − 10 mm (0.25 − 0.375 in.) to clear the
gasket (2). Remove the clamping channels.
3. Remove the pan and the fluidizing plate (1) from under the feed hopper.
4. Discard the old fluidizing plates and gaskets.
5. Clean the pan and the feed hopper flanges.
6. Position the new fluidizing plate and gasket on the pan.
7. Slide the pan under the hopper. Align the edges of the feed hopper
flange, gasket, and pan flange evenly on all sides. Block up the pan to
hold it in position.
8. Install the clamping channels over the pan and hopper flanges. Tighten
the clamping channel screws to 2.8 N
D
m (2.1 ft-lb) in a criss-cross
pattern to avoid distorting the flanges.
9. Attach the feed hopper to the color module. Connect the hoses,
quick-disconnects, power cords, and ground wires. Install the level
sensor.