Vollrath Mix60-Water Cooled - Manual (Page 19)

English
Operating instructions
19
8.1 Maintenance during component disassembly
Periodically check the o- rings [G] shown in the drawing. Replace them if broken, worn or streched out (in the latter case
o- rings tend to come out of their sockets).
Use only original o-rings made of food-safe rubber. The spare parts bag contains a complete set of o- rings approved
by the manufacturer.
A replacement of all o- rings once every year is recommended. We suggest you to always keep a spare supply: to order
them reference to the Spare Parts Section contained in the Technical Handbook.
To correctly replace the o-rings it is necessary to:
- remove old o- rings with an appropriate non- metalic tool, paying attention not to damage them or their seatings;
- lubricate new o- rings with food- compatible lubricant before replacing.
8.2 Testing of safety devices
ONLY BY A SKILLED AND QUALIFIED SERVICE TECHNICIAN CAPABLE OF TESTING OR SERVICING
OF THE SAFETY DEVICES
Periodically, check the efficiency of all the safety devices, carrying out the following test:
- turn off the machine by pressing the START button [K1]. Turn off the Main circuit breaker. If the circuit breaker is off,
the START command light [Z1] will turn itself off;
- close the lid and turn on the main circuit breaker;
- press the START button [K1] (the button's green light must be on and the temperature must appear on the display).
Remove the impeller's cover [9] by turning it left. If the magnet works correctly, 3 small squares will appear on the
display, if the magnetic contact is not functioning properly the temperature will remain displayed.
THE MACHINE MUST NOT BE USED IF ONE OR MORE OF THE SAFETY DEVICES IS DAMAGED OR
MALFUNCTIONING!