Teledyne 6712SR - Manual (Page 164)

6712SR Refrigerated Sampler
Section 8 Maintenance
8-16
8.11 Servicing the
Refrigerator
Before servicing the refrigerator, disconnect it from power. This
precaution will protect you from the possibility of electric shock
when working with the refrigerator.
WARNING
Removing the front or back panel exposes electrical and
mechanical hazards. Disconnect the power before
performing any service activities. Troubleshooting and
repair activities should be performed by a qualified
refrigeration technician.
CAUTION
Always purge the system with nitrogen. NEVER USE AIR to
purge the system.
Always recover the refrigerant.
When recharging, do not leave a line tap in the refrigeration
system because of possible corrosion or leakage problems.
Access the electrical and refrigeration components by removing
the sixteen screws on the back of the refrigerator (See Appendix
D, Replacement Parts).