Hoshizaki DCM-751BWH(-OS) Benutzerhandbuch

29

The maintenance schedule below is a guideline. More frequent maintenance may be 
required depending on water quality, the icemaker's environment, and local sanitation 
regulations.

1. Only qualified service technicians should service this icemaker.
2. Move the control switch and the power switch to the "OFF" position and turn

off the power supply before servicing. Lockout/Tagout to prevent the power 
supply from being turned back on inadvertently.

Every 2 
Weeks

Air Filters

Inspect. Wash with warm water and neutral cleaner if dirty. 

Monthly

External Water 
Filters

Check for proper pressure and change if necessary.

Icemaker Exterior

Wipe down with a clean, soft cloth. Use a damp cloth containing a neutral 
cleaner to wipe off oil or dirt build up. Clean any chlorine staining (rust 
colored spots) using a non-abrasive cleaner like Zud or Bon Ami.

Every 6 
Months

Icemaker and 
Storage Bin

Clean and sanitize per the cleaning and sanitizing instructions provided in 
this manual.

Evaporator 
Condensate Drain 
Pan and Gear 
Motor Drain Pan

Wipe down with a clean cloth and warm water. Slowly pour one cup of 
sanitizing solution (prepare as outlined in the sanitizing instructions in 
this manual) into the evaporator condensate drain pan. Be careful not to 
overflow the pan. This solution will flow down to the gear motor drain pan 
and out the drain line to sanitize these areas. Repeat with a cup of clean 
water to rinse.

Icemaker, Storage 
Bin, and Drip Tray 
Drains

Check to make sure they are clear.

Yearly

Inlet Water Valve 
and Drain Valve

Close the icemaker water supply line shut-off valve and drain the water 
system. Clean the inlet water valve screen and clean and inspect the drain 
valve.

Water Hoses

Inspect the water hoses and clean/replace if necessary.

Condenser

Inspect. Clean if necessary by using a brush or vacuum cleaner.

Icemaker

Inspect for oil spots, loose components, fasteners, and wires.

Upper Bearing 
(extruding head)

Check for wear using .02" round stock or pin gauge. Replace both upper
bearing and lower bearing if wear exceeds factory recommendations. See 
the Service Manual for details.

After 
3 Years, 
then Yearly

Upper Bearing 
(extruding head); 
Lower Bearing 
and O-Ring 
(lower housing); 
Mechanical 
Seal; Evaporator 
Cylinder; Auger

Inspect. Replace both upper bearing and lower bearing if wear exceeds 
factory recommendations. Replace the mechanical seal if the seal's contact 
surfaces are worn, cracked, or scratched.