Despatch 926E Equipment Manual (C-155)Rev 2/11 - Manual (Page 39)

34
Preventative Maintenance Schedule
Insure trouble-free service by performing preventive maintenance when appropriate.
Should service be required, specific procedures are described to locate and repair
malfunctions.
Item Description
Reading
Months of
Operation
1
3
6
9
12
1.
Inspect door seals checking for proper seating, damage or
tears. Adjust and/or replace as necessary.
X
2.
Inspect the door operation. Should open and close easily.
X
3.
Inspect recirculation fan. Make sure it is clean and free of dust
build-up.
X
4.
Measure and record the line voltage. If the voltage is not
±10% of the nameplate specification, discontinue use and take
corrective action.
X
6.
Measure and record the recirculation fan motor current draw.
X
7.
Measure and record the amp draw of the air heater. Verify the
actual amps with the amp draw listed on the electrical
schematic.
X
8.
Make a visual inspection of the control panel area. Make sure
the electrical components are clean and free of dirt or dust
buildup. CAUTION: CLEAN ONLY AFTER TURNING OFF
THE POWER AT THE POWER SOURCE.
X
9.
Inspect the equipment instrumentation. Check the controller,
limit controller(s), and recorder calibration using a certified
calibration standard. Update the calibration standards.
Complete a certificate if required.
X
10.
Check for proper operation of the High and Low limit
controllers. Adjust the limits to assure they will "trip" in an
over-temperature condition.
X
11.
Overall functional test. Operate the equipment and check the
functionality of the heating, cooling (if equipped) systems.
Adjust controller tuning if necessary.
X
12.
Record all parameters in the control instrument. Keep a copy
on sight and send a copy to Despatch.
X