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Part 2: INSTALLATION
2.2 Disassembly
The USN-72 will require partial disassembly to move it through a standard 26" x 66" hatch.
Go to Part 2.4, Permanent Placement, if disassembly is not required.
Perform the following steps to disassemble the dishwasher. Refer to Fig. 2.1 below.
1. Remove (7) 1/4-20 nuts and washers from each vent collar assembly.
Pull the vent collars off the machine.
2. Disconnect the union in the upper final rinse piping assembly.
3. Disconnect the union in the wash water makeup line.
Remove the upper final rinse piping assembly and the makeup line.
4. Inspect the fill piping on the top of the tanks
5. Remove (1) 1/2" locknut located inside the machine from each vertical fill pipe.
Remove the upper fill pipe assemblies.
6. Turn the conveyor chain tension adjusters until the conveyor chain is slack.
7. Locate the master links in the conveyor chain and remove.
Disconnect the chains and pull them to the chain adjuster in the wash tank.
8. Remove 1/4-20 hardware and U-clip protecting the inside tank joint.
9. Remove hardware securing outside front tank flange.
10. Remove the hardware joining the tank bases.
11. Disconnect the 1-1/2" drain line union underneath the dishwasher.
12. Disconnect the 1/2" steam condensate union.
13. Disconnect the 3/4" tank steam supply union
between the wash and rinse tanks.
14. Disconnect and mark the wiring and
conduit between the tanks.
15. Pull the wash and
rinse tanks apart.
16. Move the dishwasher
to its permanent
location.
17. Refer to Part 2.3,
Reassembly.
6
2
7
1
4
3
5
6
8
11
9
14
12
13
10
Figure 2.1
Disassembly
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