Hoshizaki JWE-620UA-6B - Manual (Page 57)

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C. Removal and Replacement of Internal Booster Tank
1) Move the power switch (GFCI) to the “OFF” position, then turn off the power supply.
Lockout/Tagout to prevent the power from being turned back on inadvertently.
2) Close the water supply line shut-off valve.
3) Use the internal booster tank drain hose to drain the internal booster tank. WARNING!
To avoid possible burns, allow the internal booster tank water temperature to
fall below 104°F (40°C) before draining.
4) Move the power switch (GFCI) to the “ON” position. Press the “ON/OFF” button to
turn on the unit. Leave the unit on for 3 to 5 seconds to operate the water valve and
remove any water inside the water supply pipe. Move the power switch (GFCI) to the
“OFF” position, then turn off the power supply. Lockout/Tagout to prevent the power
from being turned back on inadvertently.
5) Loosen and disconnect the rinse pump discharge line.
6) Remove the band (clip) connecting the rinse pump and internal booster tank.
7) Unscrew and remove the rinse pump from the internal booster tank.
8) Loosen and remove the nut connecting the water valve and water supply pipe.
9) Remove the screw securing the internal booster tank and the connector for the water
valve. Pull out the internal booster tank.
10) Unscrew the internal booster tank cover.
11) To replace, reverse the above procedure.
Internal Booster Tank Cover
Mounting Screw
Water Supply Pipe
Rinse Pump
Discharge Line
Wash Pump Motor
Control Box
Power Switch
(GFCI)
Rinse Pump Motor
Band
Rinse Pump Motor
Mounting Screw
Internal Booster Tank
Mounting Screw
Internal Booster Tank
Internal Booster Tank
Cover
Internal Booster Tank
Drain Hose
Water Valve