Master Lock MGH4000C Maintenance and Repairs, Disconnecting Electric Loads, Stopping Engine

OPERATION

Continued

1.Check items to be powered. Their nameplate lists their wattage ratings.

Note: The wattage ratings for some electrical motors are misleading. They may require up to three-times their rated wattage to start. You must figure total electrical load wattage. Make sure total wattage of all electrical loads does not exceed rated wattage of generator. See Determining Electrical Load For Generator, page 9.

2.Start engine. Let engine reach full speed.

3.Connect electrical loads one at a time. If the load consists of electric motors, start them first. Always start the larg- est first. Start each motor individually.

DISCONNECTING ELECTRIC LOADS

Remove electrical loads one at a time. Re- move voltage sensitive items first. Voltage sensitive items include TVs, VCRs, and other home electronic items.

STOPPING ENGINE

IMPORTANT: The engine speed is preset. The throttle is locked in preset position. Do not adjust throttle.

Follow the steps below to stop engine.

1.Remove all electrical loads from gen- erator (see Disconnecting Electrical Loads). Remove electrical loads one at a time.

2.Let engine run for two or three min- utes after removing electrical loads. This lets engine cool slightly.

3.Move engine lever or turn engine switch to the OFF position (see Figure 24).

4.Turn fuel valve lever off except model MGH3000PR. Do this by moving valve lever fully to the left (see Figure 25).

Model

MGH3000PR

HONDA

and MGH10000

ENGINE SW

CIRCUIT

BREAKER

Figure 24 - Engine Switch In OFF Position

Fuel Valve Lever

(Off Position)

Figure 25 - Fuel Valve Lever Off (Model MGH7000C Shown)

MAINTENANCE AND REPAIRS

WARNING: Only a qualified electrical service person should service and repair the alternator on this generator. Use only fac- tory approved replacement parts.

CAUTION: The engine speed is preset. The throttle is locked in preset position. Do not adjust throttle. Preset position lets en- gine run at 3600 RPM under load. The engine must maintain 3600 RPM for generator to create cor- rect voltage. Running engine at lower speeds will damage gen- erator and powered items.

CAUTION: Shut off generator before performing maintenance.

IMPORTANT: Keep generator level when servicing. Never turn generator upside down or stand it on end to service.

Note: We supply the engine owner’s manual with generator. Refer to that manual for questions concerning engine maintenance and repairs.

Non-engine parts require little maintenance. Keep generator clean. Use a damp cloth to clean outside surfaces. Never use water to clean generator. Water can cause damage to internal parts. Use vacuum to clean air inlet and outlet louvers of alternator.