Cleveland KDL Manual Del Operador página 8

MAINTENANCE
ALL SERVICE MUST BE PERFORMED BY A QUALIFIED SERVICE
TECHNICIAN.
This kettle requires very little preventative maintenance other than daily cleaning.
The pressure relief valve must be tested twice a year.
PRESSURE RELIEF VALVE TESTING PROCEDURE
The pressure relief valve must be checked at least twice a year
as part of the normal maintenance performed.
1. With the kettle empty, fully open the steam valve and allow the
kettle to preheat.
2. Stand to the side of the pressure relief valve discharge tube
and pull valve open for a maximum of one second. Repeat test
three to four times. Each time the mechanism should move freely
and be accompanied by a rapid escape of steam.
If valve appears to be sticking replace pressure relief valve.
If foreign material is discharged then drain kettle and replace
pressure relief valve.
WARNING: Improper refilling of kettle jacket will result in irreversible damage to unit.
STEAM TRAP
To remove line condensate that forms inside the steam jacket, each kettle should be equipped
with a steam trap in the line of the kettle outlet to the drain. A good steam trap at startup releases
air and wet steam into the drain line for a few minutes, then holds the steam jacket. During
cooking, the trap periodically releases accumulated condensate. If the kettle's cooking
performance becomes inadequate after long use, replacement of the steam trap with a new one
may restore kettle operation to peak efficiency.
HAND WHEEL
Some kettles are equipped with hand wheel which require periodic preventive maintenance to
assure continued trouble-free operation. Inspect the worm screw, tilting gears and bearings
occasionally (at least once a year). Lubricate as required using a high temperature grease.
DRAW-OFF VALVE
To correct a leak at the draw-off valve, the source of the leak must first be determined, Leaks
from around the valve stem are corrected by simply replacing the "O" ring. Faulty seating of the
valve stem disc against the valve body may cause dripping from the valve even when the valve is
tightly closed. This can often be corrected by cleaning any residue from the disc and seat.