Generac 004373-1, 004626-0 owner manual Weekly Exercise Cycle, Checking the Engine OIL Level

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Section 4 — Maintenance

Guardian Liquid-cooled 40 kW Generator

Figure 3.2 – Engine Block Heater

the transfer switch that indicates the day and time

 

the generator will be exercising.

OUTLET

NOTE:

INLET

Refer to applicable wiring diagram(s) and electrical schematic(s) at the back of this manual for wiring con- nections.

3.6 WEEKLY EXERCISE CYCLE

The generator will start and exercise once every seven days. During this weekly exercise, the unit runs for approximately 20 minutes and shuts down. Transfer of loads to generator output does not occur during the exercise unless power is lost during the exercise period.

To select the day of the week and time of day for exer- cising, proceed as follows:

Set the Auto/Off/Manual switch to OFF.

Set generator’s main circuit breaker to its OFF (or open) position.

Locate the rocker switch on the control panel identi- fied with the words “Set Exercise Time” (Figure 3.3).

Push “Set Exercise Time” switch to the ON position for 20 to 30 seconds and then release. The switch will spring back into its original position when released.

Wait 30 seconds before setting the Auto/Off/ Manual switch to the AUTO position.

NOTE:

The unit will exercise 20 minutes before it is set. Example: Set – Noon; Exercise – 11:40 a.m.

If you switch the Auto/Off/Manual switch is

!switched too soon, the engine may start. If engine does start, it will shut down automatically in about two (2) minutes.

Set the generator’s main circuit breaker to its ON (or closed) position.

The generator is now programmed to start and exer- cise every seven days thereafter, on the day and at the time of day the switch was activated.

Place a sign on the generator’s control panel and on

If the battery terminals are disconnected or the control panel fuse is removed, the exercise timer needs to be reset for automatic exercise operation.

Figure 3.3 – “Set Exercise” Switch on Control Panel

4.1 CHECKING THE ENGINE OIL LEVEL

For oil capacities, see “Specifications,” Section 1.7.2, Page 6. For engine oil recommendations, see Section

4.2.1.To check the engine oil level, proceed as follows (Figure 4.1):

1.Remove the dipstick and wipe it dry with a clean cloth.

2.Install the dipstick cap; then, remove it again. The oil level should be at the dipstick “Full” mark. If nec- essary, add oil to the “Full” mark only. DO NOT FILL ABOVE THE “FULL” MARK.

3.Install the dipstick.

Never operate the engine with the oil level below

!the “Add” mark on the dipstick. Doing this could damage the engine.

14 Generac® Power Systems, Inc.

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Contents Power SYSTEMS, INC Introduction Authorized Dealer LocationSafety Rules General Information InstallationMaintenance Section Installation Drawings 56-57 Warranty Back CoverGeneral Hazards Electrical Hazards UNPACKING/INSPECTION GeneratorGenerator AC Connection Systems Automatic System OperationMain Circuit Breaker SpecificationsEngine Protective Devices Fuel Requirements Recommendations Generator and Load CompatibilityEngine Conversion to LP GAS VaporEmissions Control System CoolantAIR Fuel Ratio Controller Standby Generator Installation Basic Standby Electric SystemNfpa Standards Other Published StandardsTransfer Switch Start Signal Connections GTS Type SwitchPre-Packaged Type Switch Emergency Circuit Isolation MethodPreparation Before START-UP Battery InstallationVented Batteries Prior to Initial START-UP Using the AUTO/OFF/MANUAL Switch OFF Position Manual PositionAutomatic Transfer Operation Sequence of Automatic OperationWeekly Exercise Cycle Checking the Engine OIL LevelOil and Filter Change Procedure Changing the Engine AIR CleanerChanging the Engine OIL and Filter Engine Oil RecommendationsBattery Maintenance Spark PlugsMiscellaneous Maintenance Cleaning the GeneratorOverload Protection for Engine DC Electrical System DC FuseRemoval From Service OUT of Service ProcedureReturn To Service Service Schedule SYSTEM/COMPONENT Procedure FrequencyTroubleshooting Guide Problem Cause CorrectionElectrical Data Section Power Systems, Inc Generac Power Systems, Inc Electrical Data Electrical Data Electrical Data Wiring Diagram RED Brush Units DPEPanel Face Switch Rocker Dpst 125V SPD Switch TOG Dpdt 15/10 SPSwitch Selector 6A AMP/V Part of Control Panel Wire HarnessGenerators CONTROLLER, B-C #DPG-2103 ScreenCover Plate AVR Cover Plate EgovAssembly Motor Stepper Connector Interface AssemblyHousing Governor Connect Cover Conn HousingBASE, Mounting ASSEMBLY, 4.3L Assembly Groundwire 10/3/8Plug Button 3 DIA DIRECT-COUPLED4640 31 33 Switch OIL Pressure DC Alternator AssemblyEngine 4.3L GM Pulley TensionerExploded Views and Parts Lists Retainer Plug Wires Retainer Spark Plug WiresWires Spark Plug 4.3L Connector C/C VentAdd item #42 vinyl trim as shown FAN Assembly 390 SAE DD Assembly Brush & ShuntAssembly Scroll 390 SAE Carrier Rear BearingAssembly Cover Access Duct BottomShakeproof INT M6 SS Duct Front PanelTank Coolant Recovery Bracket Coolant Recovery TankRadiator 14 FIN/INCH Venturi 16 DIA 35KWPlate AIR Cleanr Bottom Plate AIR Cleaner TOPGasket AIR Cleaner Gasket Carburetor AdaptorMixer only Natural GAS NPT XHose 1 in ID LP GAS Actuator Throttle 42MMSupport Solenoid NAT GAS Nipple TOE 3/4 NPT XNipple Pipe 3/4NPTX4.5 BLK IRN Hose 1IN ID LP GASLUG Rngtng INS Regulator N/G R600SDECAL,INLET Pressure Hose Connection TEE HEATER, Engine 1800WHEATER, Engine 2000W HOSE, Preformed Block HeaterBattery 12VDC 90-AH 27F Optional Hold Down BatteryCable Battery Black #1 X Cable Battery RED #1 X11 12 Cover Lower Connection BOX Bushing Snap SB-2.5-31Relay Solenoid 12VDC PNL MNT Transformer 200A to 5A 5VAExploded Views and Parts Lists Tube Straight a Group Muffler Catalyst 4.3LMounting Band A-GRP Catalyst Shield Heat Crossover 4.3LMuffler 2-1/2 INLET/OUTLET Clamp Band MufflerGuardian Liquid-cooled 40 kW Generators Installation Drawings 12V Battery see Note Lifting EYE Places Warranty Schedule This Warranty Shall not Apply to the Following