Hoshizaki KM-320MAH - Manual (Page 42)

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K. Removal and Replacement of Pump Motor
1) Turn off the power supply.
2) Remove the front panel.
3) Remove the base cover.
4) Drain the water tank by removing one end of the pump tubing.
5) Replace the removed parts in their correct positions.
6) Disconnect the pump suction and discharge hoses.
7) Remove the closed end connectors from the pump motor leads.
8) Remove the screw attaching the pump motor assembly to the base, then remove the
pump motor assembly.
9) Remove the screw attaching the pump motor to the pump motor bracket.
10) Remove the screws attaching the pump housing to the pump motor. Remove the
housing and check the impeller.
11) If the impeller is defective, install a new impeller.
12) Install the new motor or new parts, and replace the removed parts in the reverse order
of which they were removed.
13) Turn on the power supply and check for leaks.
14) Replace the base cover in its correct position.
15) Replace the front panel in its correct position.
L. Removal and Replacement of Spray Tubes
1) Turn off the power supply.
2) Remove the front panel and the insulation panel.
3) Remove the rubber hoses from the spray tubes (water supply pipe).
4) Release the clamps and disconnect the rubber hoses.
5) Remove the spray tubes by squeezing the side tabs.
6) Install the new spray tubes, and replace the removed parts in the reverse order of
which they were removed.
7) Replace the panels in their correct positions.
8) Turn on the power supply.