Manual

Chapter 5

Maintenance

This chapter covers the cleaning, inspection, troubleshoot

ing, and performance information.

Troubleshooting

WARNING

Disconnect this unit from the RF power sources before

any disassembly for repair or replacement procedures.

The potential for electrical shock exists.

For corrections requiring repair or replacement of compo

nents refer to the appropriate section. Only those functions

within the scope of normal maintenance are listed. This

manual can not list all malfunctions that may occur, or cor-

rective actions. If a malfunction is not listed or is not cor-

rected by listed corrective actions, notify a qualified service

center.

Cleaning

Outside

Surfaces

A main factor in effective preventive maintenance is cleanli

ness. For optimum performance and service life, the load

must be kept in a clean, and dust-free condition. During pe

riods of inaction, or if the unit is to be stored for a period of

time, keep the unit covered with a cloth or plastic sheet.

Keeping the unit covered prevents the intrusion of dust, dirt

Problem Possible

Cause

Possible Correction

Interlock is

active.

Overheating Higher power at source.

Make sure input or output

openings for air are not

restricted.

Replace thermoswitch.

Insufficient air flow. The

air flow must be ³ 1000

/min (28.32 m

/min).

High resis

tance

One or more

resistors fail

ing.

Replace resistor or resis

tors.