Hoshizaki FM-300AKE-HC, Service Manual

i 

CONTENTS                                               

PAGE 

 
I. SPECIFICATIONS -------------------------------------------------------------------------------------- 1 
1. DIMENSIONS/SPECIFICATIONS ----------------------------------------------------------------- 1 
  [a] FM-300AKE-HC (Auxiliary code: D-0 or earlier)-------------------------------------------- 1 
  [b] FM-300AKE-HC (Auxiliary code: D-1 or later) ---------------------------------------------- 2 
  [c] FM-300AKE-HCN (Auxiliary code: D-0 or earlier)------------------------------------------ 3 
  [d] FM-300AKE-HCN (Auxiliary code: D-1 or later) -------------------------------------------- 4 
  [e] FM-480AKE-HC (Auxiliary code: D-0 or earlier)  ------------------------------------------ 5 
  [f] FM-480AKE-HC (Auxiliary code: D-1 or later) ----------------------------------------------- 6 
  [g] FM-480AKE-HCN (Auxiliary code: D-0 or earlier)------------------------------------------ 7 
  [h] FM-480AKE-HCN (Auxiliary code: D-1 or later) -------------------------------------------- 8 
2. CONSTRUCTION -------------------------------------------------------------------------------------- 9 
  [a] FM-300AKE-HC(N) (Auxiliary code: D-0 or earlier)---------------------------------------- 9 
  [b] FM-480AKE-HC(N) (Auxiliary code: D-0 or earlier)---------------------------------------10 
  [c] FM-300, 480AKE-HC(N) (Auxiliary code: D-1 or earlier) --------------------------------11 
   
II. MAINTENANCE AND CLEANING INSTRUCTIONS -----------------------------------------12 
1. EXTRUDING HEAD (UPPER BEARING), HOUSING (LOWER BEARING) -----------12 
2. MECHANICAL SEAL ---------------------------------------------------------------------------------12 
3. GEAR MOTOR-----------------------------------------------------------------------------------------13 
4. CONDENSER (AIR-COOLED MODEL ONLY) ------------------------------------------------13 
5. AIR FILTER (AIR-COOLED MODEL ONLY) ---------------------------------------------------13 
6. CONTROL WATER VALVE ------------------------------------------------------------------------14 
7. CLEANING OF WATER SYSTEM ----------------------------------------------------------------15 
 
III. TECHNICAL INFORMATION----------------------------------------------------------------------17 
1. WATER CIRCUIT AND REFRIGERANT CIRCUIT -------------------------------------------17 
2. WIRING DIAGRAM -----------------------------------------------------------------------------------18 
 [a] 

WIRING 

DIAGRAM -------------------------------------------------------------------------------18 

 [b] 

CONTROL 

BOX LAYOUT ----------------------------------------------------------------------22 

3. ICEMAKING MECHANISM -------------------------------------------------------------------------23 
 [a] 

EVAPORATOR 

(CASING)----------------------------------------------------------------------24 

 [b] 

AUGER ----------------------------------------------------------------------------------------------24 

  [c] EXTRUDING HEAD (BEARING) --------------------------------------------------------------24 
 [d] 

HOUSING -------------------------------------------------------------------------------------------24 

 [e] 

MECHANICAL SEAL-----------------------------------------------------------------------------24 

  [f] COUPLING (SPLINE JOINT) -------------------------------------------------------------------24 
 [g] 

GEAR 

MOTOR ------------------------------------------------------------------------------------24 

 [h] 

BELT 

HEATER ------------------------------------------------------------------------------------25 

 [i] 

REMOVABLE FLANGE --------------------------------------------------------------------------25 

 [j] 

SEALING BOLT ------------------------------------------------------------------------------------25 

  [k] BIN CONTROL SWITCH (Auxiliary code: D-0 or earlier) -------------------------------26 
  [l] BIN CONTROL SWITCH (Auxiliary code: D-1 or later)-----------------------------------26 
  [m] CHUTE SWITCH (Auxiliary code: D-0 or earlier)-----------------------------------------28 
  [n] SPOUT, SPOUT COVER (Auxiliary code: D-0 or earlier)-------------------------------28 
4. ELECTRIC CIRCUIT ---------------------------------------------------------------------------------29 
  [a] BASIC OPERATION -----------------------------------------------------------------------------29