Service - Residential/Light Commercial Generator Sets - Models 38RCL 48RCL - Controller RDC2 - TP-6811

Oct 24, 2026

Upload by dhado

Service manual content for Residential/Light Commercial Generator Sets, covering specified models 38RCL and 48RCL with controller RDC2. Includes safety precautions and structured guidance through an organized table of contents: specifications, scheduled maintenance (oil, air cleaner, exhaust, ignition, battery, fuel system), controller topics (SiteTech software, parameters, firmware, setup, calibration, OnCue password), cooling system inspection and servicing, and troubleshooting with fault/status messages and component testing. Designed for authorized installation and service.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages112

Reading Time4 h 42 min

AccessFree to download

Safety Precautions and Instructions

Introduction

List of Related Materials

Service Assistance

Section 1 Specifications

1.1 Introduction

1.2 Controller Specifications

1.3 Engine Service

1.4 Engine Specifications

1.5 Alternator Specifications

1.6 Torque Specifications

1.7 Service Views

Section 2 Scheduled Maintenance

2.1 General Maintenance

2.2 Service Schedule

2.3 Lubrication System

2.4 Air Cleaner

2.5 Exhaust System

2.6 Ignition System

2.7 Battery

2.8 Fuel System Maintenance

Section 3 Controller

3.1 Introduction

3.2 SiteTech Software

3.3 Controller Parameters

3.4 Controller Firmware

3.5 Controller Replacement

3.6 Controller Setup

3.7 Voltage Calibration

3.8 Setting the OnCue Password

Section 4 Cooling System

4.1 General

4.2 Clean Radiator Fins and Inspect Hoses

4.3 Engine Thermostat

4.4 Cooling System Inspection

4.5 Checking and Filling Coolant

4.6 Draining Cooling System

4.7 Flushing and Cleaning

4.8 Filling Cooling System

4.9 Pressure Cap

4.10 Cooling Fans

Section 5 Troubleshooting

5.1 Introduction

5.2 Theory of Operation, Electronic Start Sequence

5.3 Initial Checks

5.4 Circuit Protection

5.5 Fuel System Troubleshooting

5.6 Controller Service Access

5.7 Fault Messages

5.8 Status Messages

5.9 Generator Set Troubleshooting

5.10 Controller Troubleshooting

Section 6 Component Testing and Adjustment

6.1 Theory of Operation

Service Residential/Light Commercial Generator Sets Models: 38RCL 48RCL 48RCLA 60RCL Controller: RDC2 ~~ ~~ TP-6811 7/16d Kohler strongly recommends that only factory-authorized distributors or dealers install and service the generator. Table of Contents Safety Precautions and Instructions ......................................................... 5 Introduction ............................................................................... 11 List of Related Materials ...................................................... 11 Service Assistance ......................................................................... 12 Section 1 Specifications ................................................................... 13 1.1 Introduction ........................................................... 13 1.2 Controller Specifications ................................................ 13 1.3 Engine Service ........................................................ 13 1.4 Engine Specifications .................................................. 13 1.5 Alternator Specifications ................................................ 13 1.6 Torque Specifications .................................................. 13 1.7 Service Views ......................................................... 14 Section 2 Scheduled Maintenance .......................................................... 17 2.1 General Maintenance .................................................. 17 2.2 Service Schedule ...................................................... 18 2.3 Lubrication System .................................................... 19 2.3.1 Oil Specifications .............................................. 19 2.3.2 Oil Check ..................................................... 19 2.3.3 Oil Additions .................................................. 19 2.3.4 Oil and Filter Change ........................................... 19 2.4 Air Cleaner ........................................................... 20 2.5 Exhaust System ....................................................... 21 2.6 Ignition System ........................................................ 22 2.7 Battery ............................................................... 24 2.7.1 Checking Electrolyte Level ...................................... 25 2.7.2 Checking Specific Gravity ....................................... 25 2.8 Fuel System Maintenance .............................................. 26 Section 3 Controller ....................................................................... 27 3.1 Introduction ........................................................... 27 3.2 SiteTech Software ..................................................... 27 3.3 Controller Parameters .................................................. 28 3.3.1 Controller Parameters Table ..................................... 28 3.3.2 Notes on Selected Parameters .................................. 28 3.4 Controller Firmware .................................................... 41 3.5 Controller Replacement ................................................ 42 3.6 Controller Setup ....................................................... 44 3.7 Voltage Calibration ..................................................... 47 3.7.1 Calibration using the RDC2 Controller Keypad and Menus .......... 47 3.7.2 Calibration Using SiteTech ...................................... 49 3.8 Setting the OnCue Password ............................................ 51 Section 4 Cooling System .................................................................. 53 4.1 General .............................................................. 53 4.2 Clean Radiator Fins and Inspect Hoses ................................... 54 4.3 Engine Thermostat ..................................................... 54 4.4 Cooling System Inspection ...........................................

FAQs

Which generator set models and controller are covered?

The manual covers Residential/Light Commercial Generator Sets for models 38RCL and 48RCL, including 48RCLA and 60RCL, with the RDC2 controller.

What scheduled maintenance topics are included?

It includes lubrication system service (oil specifications, checks, additions, and oil/filter changes), air cleaner service, exhaust system maintenance, ignition system checks, battery electrolyte and specific gravity checks, and fuel system maintenance.

How are controller parameters and calibration handled?

The controller section covers SiteTech software, controller parameter tables and notes, firmware topics, controller setup, and voltage calibration using the RDC2 keypad/menus or SiteTech. It also includes setting the OnCue password.

Oct 24, 2026

Upload by dhado