Hoshizaki MODULAR FLAKER F-801MAH/-C - Manual (Page 46)

46
13) Recover the refrigerant and store it in an approved container, if required by an applicable
law.
IMPORTANT
Always install a new drier every time the sealed refrigeration system is
opened. Do not replace the drier until after all other repairs or replacement
have been made.
14) Remove the bulb of the expansion valve.
15) Disconnect the brazing-connections of the expansion valve and the copper tube -low
side from the evaporator, using brazing equipment.
16) Remove the two truss head machine screws and the strap securing the evaporator.
17) Disconnect the three hoses from the evaporator.
18) Remove the four socket head cap screws securing the evaporator with the bearing-
lower.
19) Lift off the evaporator.
Bearing-Lower and Mechanical Seal
20) The mechanical seal consists of two parts. One moves along with the auger, and the
other is fixed on the bearing-lower. If the contact surfaces of these two parts are worn or
scratched, the mechanical seal may cause water leaks and should be replaced.
21) Remove the O-ring on the bearing-lower.
22) Remove the four bolts and the bearing-lower from the gear motor. Replace the bearing
inside the bearing-lower, if it exceeds the wear tolerance of 0.02" or is scratched.
Note: Replacing the bearing requires a bearing press adaptor. If it is not available,
replace the whole bearing-lower.
Gear Motor
23) Remove the coupling-spline on the gear motor shaft.
24) Remove the barrier on the top of the gear motor.
25) Remove the three socket head cap screws securing the gear motor.