Kohler Essential Guide to 12RES Maintenance and Service Schedule

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3.2	Service Schedule

						Procedure

			See	Visually
System Component or Procedure			Section	Inspect		Check	Change	Clean	Test	Frequency
Fuel

Flexible lines and connections					X		R			Quarterly

Main tank supply level						X				Weekly

Fuel piping					X					Yearly

Lubrication			3.3

Oil level					X	X				8 hours or
										before use

Crankcase breather hose					X					Yearly or 500 hours

Change oil							X			Yearly or 100 hours

Replace filter							X			Yearly or 200 hours

Cooling			3.6

Air ducts, louvers						X		X		Yearly

Exhaust Line			3.7

Leakage					X	X				Weekly

Insulation, fire hazards					X					Yearly

Obstructions or combustible materials near exhaust					X					Weekly
outlet

DC Electrical System			3.8

Battery charger operation, charge rate (if equipped)					X					Monthly

Remove corrosion, clean and dry battery and rack					X			X		Yearly

Clean and tighten battery terminals and inspect					X	X				Yearly
boots

Battery electrolyte level and specific gravity *						X				Yearly

AC Electrical System

Tighten control and power wiring connections						X				Yearly

Remote control system, if equipped									X	Monthly

Visible wear or damage					X					Quarterly

Wire abrasions where subject to motion					X	X				Six Months

Wire-cable insulation condition					X					3 Years or 500 hours

Engine and Mounting

Visible wear or damage					X					Weekly

Air cleaner and precleaner service			3.5				R			Yearly or 100 hours

Spark plugs			3.4				X			Yearly or 300 hours

Replace stepper motor coupling and bushing							D			500 hours

Generator

Visible wear or damage			2.1		X					Quarterly

Exercise generator set			2.2						X	Weekly

Brushes and collector ring					D			D		Yearly

Measure and record resistance readings of
windings with insulation tester (Meggerr, with
SCR assembly or rectifier and load leads
disconnected) *									D	3 Years

General Condition of Equipment

Evidence of vibration, leakage, excessive noise,
temperature, or deterioration					X	X		X		Weekly

Interior of sound enclosure					X			X		Quarterly

* Not necessary for maintenance-free batteries.				D	Authorized distributor/dealer only
				X	Action
				R	Replace as necessary

Meggerr is a registered trademark of Biddle Instruments.
10	Section 3 Scheduled Maintenance									TP-6331 5/04

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Contents Controller Advanced Digital Control ADC ModelsTP-6331 5/04 Generator Set Identification Numbers Product Identification InformationController Identification Engine IdentificationTable of Contents Table of Contents TP-6331 5/04 Battery Safety Precautions and InstructionsAccidental Starting Engine Backfire/Flash Fire Exhaust SystemFuel System Hazardous Noise Hazardous Voltage/ Electrical ShockHot Parts Heavy EquipmentMoving Parts 246242 VI Safety Precautions and Instructions TPTPS-6331 5/04 Nameplate IntroductionEPA and California Emission Certification Service Assistance Engine FeaturesSpecifications Generator Advanced Digital ControlGenerator Set Components Generator Set ComponentsExercising Generator Set Prestart ChecklistOperation Generator Set OperationStarting Generator Set Controls and IndicatorsStopping Generator Set Fault Shutdowns Code Fault Description CheckContinuous Power Mode Resetting Controller after a Fault ShutdownBattery Charger Battery Charger OperationOperation TP-6331 5/04 Scheduled Maintenance Routine MaintenanceService Schedule LubricationLow Oil Pressure Shutdown Oil Change ProcedureLubrication System Oil CheckPrecleaner Service Air Cleaner Element and PrecleanerSpark Plugs Paper Element Service Air Cleaner ComponentsCooling System Cooling Air Intake and ExhaustEZ-273000-J Storage Procedure Circuit ProtectionCylinder Lubrication BatteryExterior Preparation Scheduled Maintenance TP-6331 5/04 Generator Set Troubleshooting TroubleshootingIntroduction Battery Charger Troubleshooting Fault CodesTroubleshooting Appendix a Abbreviations AnsiISO Page By Kohler Co. All rights reserved

12RES, 8.5RES specifications

The Kohler 8.5RES and 12RES generators are known for their robust reliability and efficiency, making them ideal solutions for both residential and light commercial applications. These generators are equipped with advanced technologies that ensure seamless power delivery during outages, giving users peace of mind.

The Kohler 8.5RES, with its 8.5 kW output, is perfect for homeowners who require backup power for essential appliances and systems. It efficiently powers refrigerators, lights, and heating or cooling systems, providing convenience when the grid is down. The 12RES, delivering 12 kW, caters to larger homes or small businesses, accommodating additional loads such as sump pumps and electric dryers.

One of the standout features of these generators is the Kohler Command PRO engine, designed for maximum performance and longevity. This engine operates with low noise levels, ensuring that any power interruption goes unnoticed. Both models come with an innovative digital control panel that simplifies operation and monitoring, allowing users to access critical information at a glance.

The Kohler 8.5RES and 12RES are equipped with the patented Automatic Voltage Regulation (AVR) technology. This feature maintains a steady voltage output to protect sensitive electronics from damage caused by power surges. The modular design of these units facilitates easy maintenance, with service intervals and replacement parts readily available.

For eco-conscious consumers, the Kohler generators meet EPA emission regulations, ensuring a cleaner energy solution. The units also offer a comprehensive sound-attenuated enclosure, resulting in quieter operation, making them suitable for use in suburban environments.

Installation is straightforward, with various connection options for natural gas and propane fueling. Both models come with a fully automatic transfer switch, providing seamless transition from grid to generator power. This ensures that critical systems are always operational during outages.

In summary, the Kohler 8.5RES and 12RES generators stand out for their reliability, advanced technology, and user-friendly features. Their powerful engines, efficient performance, and low emissions make them an excellent choice for anyone looking to invest in a dependable backup power solution. Whether for home use or light commercial needs, these generators provide the essential peace of mind that comes with knowing you have power when you need it most.