Generac 004692-2 owner manual Checking the Engine OIL Level, ‹ 3.7.1 LOW OIL Pressure Switch

Section 4 — Maintenance

Air-cooled 8.5 kW Generator

3.7PROTECTION SYSTEMS

‹3.7.1 LOW OIL PRESSURE SWITCH

This switch (Figure 3.3) has normally closed contacts that are held open by engine oil pressure during cranking and operating. Should oil pressure drop below the 8 psi range, switch contacts close, and the engine shuts down. The unit should not be restarted until oil is added. The AUTO/OFF/MANUAL switch must then be turned to OFF and then back to AUTO.

‹3.7.2 HIGH TEMPERATURE SWITCH

This switch’s (Figure 3.3) contacts close if the tem- perature should exceed approximately 140º C (284º F), initiating an engine shutdown. The generator will automatically restart and the LED on the generator control panel will reset once the temperature has returned to a safe operating level.

Figure 3.3 – Low Oil Pressure and

High Temperature Switches

Low Oil Switch High Temp Switch

Loosen

3.7.3.1 Approximate Crank Cycle Times

•15 seconds ON

•7 seconds OFF

•7 seconds ON

•7 seconds OFF

•Repeat for 45 seconds Approximately 90 seconds total

‹3.7.4 OVERSPEED

This feature protects the generator from damage by shutting it down if it happens to run faster than the preset limit. This protection also prevents the gener- ator from supplying an output that could potentially damage appliances connected to the generator cir- cuit. Contact the nearest Generac Authorized Dealer if this failure occurs.

4.1FUSE

The generator panel’s 15 amp fuse (Figure 4.1) pro- tects the DC control circuit against overload. The fuse is wired in series with the battery output lead to the panel. If the fuse element has melted open, the engine will not crank or start. Replace the fuse using only an identical 15-amp replacement.

The generator panel’s 5 amp fuse protects the battery charge circuit against overload. If the fuse element has melted open, battery charging capabilities will not be possible. Replace the fuse using only an iden- tical 5 amp replacement. To remove fuse, push cap down and rotate counterclockwise.

Figure 4.1 – Generator Control Panel

Oil

Drain

Hose

Oil Filter

‹3.7.3 OVERCRANK

This feature prevents the generator from damaging itself when it continually attempts to start and anoth- er problem, such as no fuel supply, prevents it from starting. The unit will crank and rest for a preset time limit. Then, it will stop cranking, and the LED on the

FUSE

5A

AUTO OFF MAN.

FUSE

15ASET EXERCISE

TIME

L o c a t e y o u r n e a r e s t d e a le r a t :

POWER SYSTEMS, INC.

SYSTEM SET

LOW OIL

HIGH TEMP.

OVER SPEED

OVER CRANK

F L A S H IN G G R E E N L E D =

N O U T IL IT Y S E N S E 4 F L A S H IN G R E D L E D S =

E X E R C IS E R N O T S E T

generator control panel will light indicating an over- crank failure. The AUTO/OFF/MANUAL switch will need to be set to OFF and then back to AUTO to reset the generator control board.

NOTE:

If the fault is not repaired, the overcrank feature will continue to activate.

16 Generac® Power Systems, Inc.

4.2CHECKING THE ENGINE

OIL LEVEL

For oil capacities, see “Specifications,” Section 1.5. For engine oil recommendations, see Section 4.3.1. To check the engine oil level, proceed as follows (Figure 4.2):

1.Start the generator by moving the Auto/ Off/Manual switch to the MANUAL position. Allow it to run for a short while and then shut it down by moving the switch to the OFF position.