SECTION 1.6

OPERATING INSTRUCTIONS

PART 1

GENERAL INFORMATION

CONTROL PANEL

GENERAL:

See Figure 1. The front face of this panel mounts (a) an hourmeter, (b) an AUTO-OFF-MANUAL switch ,(c) a 15 amp fuse, (d) a 5 amp fuse, (e) a set exercise switch and (f) the protection systems.

HOURMETER:

Equipped on some models only. The hourmeter indicates engine-generator operating-time, in hours and tenths of hours. Use the meter in conjunction with the periodic maintenance schedule for the applicable generator set. circuit board action turns the hourmeter on at startup, via the same (Wire 14) circuit that powers the engine ignition system and the fuel shutoff solenoid.

circuit board action will initiate engine cranking and startup.

d. Following engine startup, circuit board action will initiate transfer of electrical loads to the "Standby" source side.

e. On restoration of utility source voltage above a preset level, circuit board action will initiate retransfer back to the "Utility Source" side.

f. Following retransfer, circuit board will shut the engine down and will then continue to monitor utility source voltage.

2.OFF Position:

a.Set the switch to OFF to stop an operating engine.

b.To prevent an automatic startup from occurring, set the switch to OFF.

3. MANUAL Position:

Figure 1. Control Panel

AUTO-OFF-MANUAL SWITCH:

Use this switch to (a) select fully automatic operation,

(b)to crank and start the engine manually, and (c) to shut the unit down or to prevent automatic startup.

1. AUTO position:

a.Select AUTO for fully automatic operation.

b.When AUTO is selected, circuit board will monitor utility power source voltage.

c.Should utility voltage drop below a preset level and remain at such a low level for a preset time,

a. Set switch to MANUAL to crank and start unit manually.

b. Engine will crank cyclically and start (same as automatic startup, but without transfer). The unit WILL transfer if utility voltage is not available.

DANGER: WHEN THE GENERATOR IS INSTALLED IN CONJUNCTION WITH AN AUTOMATIC TRANSFER SWITCH, ENGINE CRANKING AND STARTUP CAN OCCUR AT ANY TIME WITHOUT WARNING (PROVIDING THE AUTO-OFF-MANUAL SWITCH IS SET TO AUTO). TO PREVENT AUTOMATIC STARTUP AND POSSIBLE INJURY THAT MIGHT BE CAUSED BY SUCH STARTUP, ALWAYS SET THE AUTO-OFF-MANUAL SWITCH TO ITS OFF POSITION BEFORE WORKING ON OR AROUND THIS EQUIPMENT.

15 AMP FUSE:

This fuse protects the DC control circuit (including the circuit board) against overload. If the fuse element has melted open due to an overload, engine cranking or running will not be possible. Should fuse replacement become necessary, use only an identical 15 amp replacement fuse.

5 AMP FUSE:

This fuse protects the battery charge circuit against overload. If the fuse element has melted open due to an overload, battery charge will not occur. Should fuse replacement become necessary, use only an identical 5 amp replacement fuse.

Page 1.6-1

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Guardian Technologies 4760, 4456, 4390, 4389, 4759, 4758 manual Control Panel, OFF Position, Manual Position, Auto position