Analisis

NOTICE
IMPORTANT INFORMATION
It is imperative that proper installation, maintenance, operation and safety procedures be followed
explicitly regarding products provided by Rockford
Powertrain, Inc.
GENERAL:
Safe working and operating practices must be employed by all personnel working on, with, or near
Rockford Powertrain products. Rockford Powertrain, Inc. will not be responsible forpersonal injury.

SAFETY NOTICE:
Accidents may result from use of manufactured
products, resulting in possible danger to person(s) or
property. Therefore, it is important and imperative
that correct, safe procedures be followed. Products
must be installed, maintained, operated and used in
accordance with the engineering information specified. Continual and repeated inspections and observationsshould be employed as necessary to assure
that safe operations and a safe environment exist
under prevailing conditions. Use proper guards and
other suitable safety equipment, devices and procedures that may be desirable or specified in safety
codes, or as necessary to prevent accidental injury to
person(s) or property. These devices are neither
provided by Rockford Powertrain, Incorporatednor
are they the responsibility of Rockford Powertrain,
Incorporated.

OWNER / OPERATOR / USER
RESPONSIBILITIES:
Knowledge of and performance of the procedures
specified in this publication are the responsibility of
the owner(s), operator(s), user(s) and all person(s)
working on or near the products described herein.
Following these procedures and explicit adherence to
the informationdescribed should ensure safe and
reliable use, repair, and operation of products provided by Rockford Powertrain, Incorporated.

WARRANTY:
Rockford Powertrain's Limited Warranty is described
in detail in this publication. It is the responsibility of
the original purchaser or manufacturer, successive
buyers, users, third parties or employees to make
themselves aware of this warranty and allconditions
it contains.

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Table of Contents

Information subject to change without notice

Form No. 5435
Rv 0
e. 1

Page 1
99
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Table of Contents
1.0 General Description and Operation
1.1 Input Components
1.2 Output Components
1.3 Stationary Components
1.4 Operation Modes
1.4.1 Fan Clutch Control System1.4.2 Fully Released Mode
1.4.3 Modulated Variable Speed Mode
1.4.4 Fully Engaged Mode
1.4.5 OPTIONAL Fan Speed Limiting Systems
1.5 Lubricating and Cooling Oil
1.6 Control Pressure Oil
1.7 Rockford Part Numbering System
1.7.1 Fan Clutch Part Number And Serial Number
1.7.2 Thermal Sensor And Solenoid Valve Part Numbers
1.7.3 Thermal Sensor And Solenoid Valve Identification

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45
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2.0 Application Guidelines
2.1 Selecting The Proper Fan Clutch
2.1.1 Design Configuration
2.1.2 Fan Clutch Torque Capacity
2.2 How To Determine Bracket Configuration
2.3 How To Determine Fan Torque Requirements
2.4 Selecting An Acceptable Fan Spacer Length
2.5 Selecting An Acceptable Thermal Sensor
2.5.1 Thermostat(s)
2.5.2 Thermal Sensor(s)
2.5.3 OEMElectronic Control Module (ECM)

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3.0 Specifications and Recommendations
3.1 Belts
3.2 Belt Tension
3.3 Bolt Selection
3.4 Bolt Torque
3.5 Hose Specifications
3.6 Hose Fittings
3.7 Oil Type
3.8 Oil Flow Volume

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4.0 Installation On The Engine
4.1 Preparation
4.2 Measure for Spacers
4.3 Install the Fan Clutch4.4 Fan Clutch Plumbing Locations
4.4.1 Caterpillar Engines
4.4.2 Cummins Engines
4.4.3 Assembly Instructions for Mounting Adapter Kit
4.4.4 Detroit Diesel Engines
4.5 Install the Oil Supply Hose
4.6 Install the Oil Drain Hose

4.7 Basic Plumbing Schematics
4.7.1 Basic RECOMMENDED Installation
4.7.2 Basic Alternate Installation
4.8
4.9
4.10
4.11
4.12
4.13

Form No. 5435
99...