Hoshizaki F-800MAF, Service Manual

Page: 43 / 61

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3. REMOVAL AND REPLACEMENT OF COMPRESSOR
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.
1) Turn off the power supply, and remove the panels.
2) Remove the Terminal Cover on the Compressor, and disconnect the Compressor
Wiring.
3) Recover the refrigerant and store it in an approved container, if required by an applicable
law.
4) Remove the Discharge, Suction and Access Pipes from the Compressor using brazing
equipment.
WARNING
When repairing a refrigerant system, be careful not to let the burner flame
contact any electrical wires or insulation.
5) Remove the Bolts and Rubber Grommets.
6) Slide and remove the Compressor. Unpack the new Compressor package. Install the
new Compressor.
7) Attach the Rubber Grommets of the prior Compressor.
8) Sandpaper the Discharge, Suction and Access Pipes.
9) Place the Compressor in position, and secure it using the Bolts.
10) Remove plugs from the Discharge, Suction and Access Pipes.
11) Braze the Access, Suction and Discharge lines (Do not change this order), while purging
with nitrogen gas flowing at the pressure of 3 - 4 PSIG.
12) Install the new Drier.
13) Check for leaks using nitrogen gas (140 PSIG) and soap bubbles.