Maintenance – Blodgett KTC-E Series User Manual

Page 16

OM-KTT/KTC-E

Maintenance

NOTICE: Contact an authorized representative when repairs are required.

A Maintenance & Service Log is provided at the back of this manual. Each time

maintenance is performed on your kettle, enter the date on which the work was done,

what was done, and who did it. Keep this manual on file and available for operators to

use. Periodic inspection will minimize equipment down time and increase the efficiency

of operation. The following points should be checked:

Jacket Vacuum/Removing Air from Jacket (by Operator)

Every day, while the kettle is cold, read the pressure/ vacuum gauge. A

positive reading or a negative reading between zero and 20” vacuum on the

pressure/ vacuum gauge indicates excess air in the jacket. Air in the jacket

slows kettle heating and can prevent the kettle from reaching operating

temperature. To remove air:

To remove air:

Start the unit. (See “Operation” section).

Make sure the elbow on the outlet of the pressure relief valve is turned

so that escaping steam is directed down toward the floor. Be sure and

follow the instructions on the attached pressure relief valve tag.

When the pressure/vacuum gauge reaches a positive pressure reading

of 5 PSI, release trapped air by lifting the pressure relief valve ring

for about one second. Repeat this step, then let the valve ring snap

closed, so the valve will seat properly and not leak.

Pressure Relief Valve (by Operator)

At least twice a month, test the pressure relief valve. Test the valve with the

kettle operating at 15 PSI (105 kPa), by holding the test ring for at least five

seconds. Then release the ring and permit the valve to snap shut. If the ring

does not activate, if there is no discharge, or if the valve leaks, stop using the

kettle immediately and contact a authorized service representative.

Grease / Lubrication (by Service)

KTT Models: At least twice a year, grease the two trunnion bearings. The

bearings are located within the kettle support housing. Remove the access

panels from the support housing with a screwdriver to gain access to the

grease fittings. Use a lithium-based, multi-purpose grease. When the access

panels are removed, the mounting bolts for the trunnion bearings and tilt

switch can also be checked for tightness. When finished, reassemble access

panels to support housing.

KTC Models: The gear housing has been fitted for proper lubrication of

moving parts. Since the gears do not run in oil, periodic lubrication with

grease is essential. Frequency of lubrication depends on operating conditions,

but should occur at least once every six months. The use of a Number Two

grade LGI lithium grease is recommended. Add grease through the Zerk

fittings on the gear housing until grease flows out of the bearings around the

trunnion shaft. Place a liberal amount of grease on the gear to cover the arc

that is in contact with the worm gear.

WARNING

AVOID ANY EXPOSURE TO THE STEAM

BLOWING OUT OF THE PRESSURE

RELIEF VALVE. SEVERE BURNS CAN

RESULT ON EXPOSED SKIN.

FAILURE TO CHECK PRESSURE RELIEF

VALVE OPERATION PERIODICALLY

COULD RESULT IN PERSONAL INJURY

AND/OR DAMAGE TO EQUIPMENT.

Make sure that the

open end of the elbow

on the pressure

relief valve is directed

downward.

The pressure gauge

should show a

vacuum of 20 to 30

inches when the

kettle is cold.

CAUTION

KEEP GREASE AWAY FROM ELECTRICAL

PARTS LOCATED NEAR THE GEARS.

This manual is related to the following products:

KTT-E Series