This document is a service manual for a rental package generator set with a PowerCommand 3201 controller. It contains sections on safety instructions, an introduction, the control system, control calibration and adjustment, servicing the generator, troubleshooting, and maintenance. The table of contents lists subsections on testing the generator, insulation resistance testing, drying the windings, servicing various generator components, fault codes, troubleshooting symptoms, and maintenance schedules and procedures.

1. Service Manual
Rental Package Generator Set
C1500 D6 RG (Spec A)
with PowerCommandr 3201 Controller
English 8-2009 A029R386 (Issue 1)

2. Table of Contents
1. IMPORTANT SAFETY INSTRUCTIONS ........................................................................................ 1
1.1 Warning, Caution and Note Styles Used In This Manual ........................................................ 1
1.2 General Information ................................................................................................................. 1
1.3 Generator Set Safety Code ..................................................................................................... 2
1.4 Electrical Shock Can Cause Severe Personal Injury Or Death............................................... 3
1.5 Fuel And Fumes Are Flammable............................................................................................. 4
1.6 Exhaust Gases Are Deadly...................................................................................................... 4
2. INTRODUCTION............................................................................................................................. 7
2.1 About This Manual................................................................................................................... 7
2.2 Test Equipment........................................................................................................................ 7
2.3 Schedule of Abbreviations ....................................................................................................... 7
2.4 Related Literature .................................................................................................................... 9
2.5 After Sales Services................................................................................................................. 9
3. CONTROL SYSTEM - PCC 3201................................................................................................. 11
3.1 Control System Description ................................................................................................... 11
3.2 Control Menus (PCC 3201) ................................................................................................... 17
4. CONTROL CALIBRATION AND ADJUSTMENT.......................................................................... 33
4.1 General .................................................................................................................................. 33
4.2 Modifying Setup/Adjust Submenus........................................................................................ 33
4.3 Password Menu ..................................................................................................................... 33
4.4 Setup Menu............................................................................................................................ 34
4.5 Governing Volt/Reg Menu...................................................................................................... 35
4.6 Customer Faults Submenus ................................................................................................. 36
4.7 Calibration Submenus............................................................................................................ 37
4.8 Isolated BUS/Utility Submenus (Paralleling Applications) ..................................................... 39
4.9 Power Transfer Control Main Menus..................................................................................... 44
4.10 Utility Sensors Submenus.................................................................................................... 45
4.11 Genset Sensors Submenus................................................................................................. 48
4.12 Timers Submenu.................................................................................................................. 51
4.13 Test/Exercise Submenu....................................................................................................... 52
4.14 Adjust Submenu................................................................................................................... 53
4.15 Calibration Procedure .......................................................................................................... 54
A029R386 (Issue 1) i

3. Table of Contents 8-2009
4.16 Control Box Wiring............................................................................................................... 57
4.17 Optional Run Relays (K11, K12, K13) ................................................................................. 59
4.18 Optional Alarm Relay........................................................................................................... 60
4.19 Magnetic Speed Pickup Unit (MPU) Installation.................................................................. 60
5. SERVICING THE GENERATOR................................................................................................... 63
5.1 Testing the Generator............................................................................................................ 63
5.2 Generator/PCC Control Isolation Procedure ......................................................................... 64
5.3 Insulation Resistance (Megger) & Polarization Index Testing............................................... 65
5.4 Drying the Windings............................................................................................................... 68
5.5 Exciter Stator ......................................................................................................................... 68
5.6 Exciter Rectifier Bridge (Rotating Rectifier Assembly)........................................................... 70
5.7 Exciter Rotor .......................................................................................................................... 71
5.8 Main Rotor ............................................................................................................................. 72
5.9 Main Stator............................................................................................................................. 73
5.10 P7 Bearing Inspection/Removal........................................................................................... 76
5.11 P7 Generator Disassembly.................................................................................................. 77
5.12 Aligning Generator with Engine ........................................................................................... 86
6. TROUBLESHOOTING .................................................................................................................. 89
6.1 Troubleshooting Overview ..................................................................................................... 89
6.2 Safety Considerations............................................................................................................ 89
6.3 Status Indicators .................................................................................................................... 90
6.4 Line Circuit Breaker (Optional) .............................................................................................. 90
6.5 Control and Diagnostics via Network or Personal Laptop Computer .................................... 90
6.6 Reading Fault Codes ............................................................................................................. 90
6.7 Fault Codes............................................................................................................................ 92
6.8 Warning and Shutdown Codes (Category D) for PCC 3201 ................................................. 99
6.9 Troubleshooting via Symptom - Parallel.............................................................................. 102
6.10 Troubleshooting via Symptom - Nonparallel...................................................................... 103
6.11 Troubleshooting for Landing Gear..................................................................................... 103
7. MAINTENANCE .......................................................................................................................... 107
7.1 Maintenance - General Information ..................................................................................... 107
7.2 Maintenance Schedule ........................................................................................................ 107
7.3 Generator Set Inspection..................................................................................................... 109
7.4 Fuel System......................................................................................................................... 110
7.5 Generator Set Maintenance (Battery Disconnected)........................................................... 110
ii A029R386 (Issue 1)

4. 8-2009 Table of Contents
7.6 Lubrication System .............................................................................................................. 111
7.7 Cooling System.................................................................................................................... 112
7.8 Radiator Maintenance.......................................................................................................... 118
7.9 Air Cleaner........................................................................................................................... 123
7.10 Batteries............................................................................................................................. 124
7.11 Generator Bearing Re-Lubrication..................................................................................... 125
7.12 Landing Gear Maintenance................................................................................................ 126
8. FUEL TANK SYSTEM................................................................................................................. 129
8.1 Fuel Tank System................................................................................................................ 129
8.2 PCC Customer Inputs.......................................................................................................... 129
8.3 Fuel Display Panel Indicators .............................................................................................. 130
8.4 Tank Overfill Panel............................................................................................................... 130
8.5 Fuel Gauge .......................................................................................................................... 131
8.6 Fuel Priming Instructions ..................................................................................................... 132
9. GLOBAL ADDRESSES............................................................................................................... 133
APPENDIX A. WIRING DIAGRAMS................................................................................................ 135
A029R386 (Issue 1) iii

5. 1 IMPORTANT SAFETY INSTRUCTIONS
SAVE THESE INSTRUCTIONS - This manual contains important instructions that should be
followed during installation and maintenance of the generator set and batteries.
Safe and efficient operation can be achieved only if the equipment is properly operated
and maintained. Many accidents are caused by failure to follow fundamental rules and
precautions.
1.1 Warning, Caution and Note Styles Used In This
Manual
The following safety styles and symbols found throughout this manual indicate potentially
hazardous conditions to the operator, service personnel or the equipment.
DANGER: Warns of a hazard that will result in severe personal injury or death.
WARNING: Warns of a hazard that may result in severe personal injury or death.
CAUTION: Warns of a hazard or an unsafe practice that can result in product or property
damage.
NOTE: A short piece of text giving information that augments the current text.
1.2 General Information
This manual should form part of the documentation package supplied by Cummins Power
Generation with specific generator sets. In the event that this manual has been supplied in
isolation please refer to other Cummins Power Generation literature, in particular the Health and
Safety manual and contact your authorized distributor.
NOTE: It is in the Operator’s interest to read and understand all Health and Safety
information together with all Warnings and Cautions contained within the
documentation relevant to the generator set, its operation and daily
maintenance.
1.2.1 General Safety Precautions
· Coolants under pressure have a higher boiling point than water. DO NOT open a radiator
or heat exchanger pressure cap while the engine is running. Allow the generator set to
cool and bleed the system pressure first. To prevent severe scalding, let engine cool down
before removing coolant pressure cap. Turn cap slowly, and do not open it fully until the
pressure has been relieved.
· Benzene and lead, found in some gasoline, have been identified by some state and federal
agencies as causing cancer or reproductive toxicity. When checking, draining or adding
gasoline (if applicable to your product), take care not to ingest, breathe the fumes, or
contact gasoline.
· Used engine oils have been identified by some state or federal agencies as causing cancer
or reproductive toxicity. When checking or changing engine oil, take care not to ingest,
breathe the fumes, or contact used oil.
A029R386 (Issue 1) 1

6. 1. IMPORTANT SAFETY INSTRUCTIONS 8-2009
· Keep multi-class ABC fire extinguishers handy. Class A fires involve ordinary combustible
materials such as wood and cloth; Class B fires, combustible and flammable liquid fuels
and gaseous fuels; Class C fires, live electrical equipment. (ref. NFPA No. 10).
· Make sure that rags are not left on or near the engine.
· Make sure generator set is mounted in a manner to prevent combustible materials from
accumulating under the unit.
· Remove all unnecessary grease and oil from the unit. Accumulated grease and oil can
cause overheating and engine damage which present a potential fire hazard.
· Keep the generator set and the surrounding area clean and free from obstructions.
Remove any debris from the set and keep the floor clean and dry.
· Do not work on this equipment when mentally or physically fatigued, or after consuming
any alcohol or drug that makes the operation of equipment unsafe.
· Substances in exhaust gases have been identified by some state or federal agencies as
causing cancer or reproductive toxicity. Take care not to breath or ingest or come into
contact with exhaust gases.
· Do not store any flammable liquids, such as fuel, cleaners, oil, etc., near the generator set.
A fire or explosion could result.
· Wear hearing protection when going near an operating generator set.
· To prevent serious burns, avoid contact with hot metal parts such as radiator, turbo
charger and exhaust system.
1.3 Generator Set Safety Code
Before operating the generator set, read the manuals and become familiar with them and the
equipment. Safe and efficient operation can be achieved only if the equipment is properly
operated and maintained. Many accidents are caused by failure to follow fundamental rules
and precautions.
WARNING: Improper operation and maintenance can lead to severe personal injury or
loss of life and property by fire, electrocution, mechanical breakdown or
exhaust gas asphyxiation. Read and follow all Safety Precautions, Warnings
and Cautions throughout this manual and the Health and Safety manual.
1.3.1 Moving Parts Can Cause Severe Personal Injury Or Death
· Keep your hands, clothing, and jewelry away from moving parts.
· Before starting work on the generator set, disconnect battery charger from its AC source,
then disconnect starting batteries, negative (–) cable first. This will prevent accidental
starting.
· Make sure that fasteners on the generator set are secure. Tighten supports and clamps,
keep guards in position over fans, drive belts, etc.
· Do not wear loose clothing or jewelry in the vicinity of moving parts, or while working on
electrical equipment. Loose clothing and jewelry can become caught in moving parts.
· If adjustment must be made while the unit is running, use extreme caution around hot
manifolds, moving parts, etc.
2 A029R386 (Issue 1)

7. 8-2009 1. IMPORTANT SAFETY INSTRUCTIONS
1.3.2 Positioning of Generator Set
The area for positioning the set should be adequate and level and the area immediately around
the set must be free of any flammable material.
1.4 Electrical Shock Can Cause Severe Personal Injury
Or Death
· Remove electric power before removing protective shields or touching electrical
equipment. Use rubber insulative mats placed on dry wood platforms over floors that are
metal or concrete when around electrical equipment. Do not wear damp clothing
(particularly wet shoes) or allow skin surface to be damp when handling electrical
equipment. Do not wear jewelry. Jewelry can short out electrical contacts and cause shock
or burning.
· Use extreme caution when working on electrical components. High voltages can cause
injury or death. DO NOT tamper with interlocks.
· Follow all applicable state and local electrical codes. Have all electrical installations
performed by a qualified licensed electrician. Tag and lock open switches to avoid
accidental closure.
· DO NOT CONNECT GENERATOR SET DIRECTLY TO ANY BUILDING ELECTRICAL
SYSTEM. Hazardous voltages can flow from the generator set into the utility line. This
creates a potential for electrocution or property damage. Connect only through an
approved isolation switch or an approved paralleling device.
1.4.1 AC Supply and Isolation
It is the sole responsibility of the customer to provide the AC power supply and the means to
isolate the AC input to the terminal box. Refer to the wiring diagram supplied with the generator
set.
NOTE: A separate disconnecting device is required by BS EN 12601:2001.
NOTE: The AC supply must have the correct over current and earth fault protection
according to local electrical codes and regulations.
The disconnecting device is not provided as part of the generator set, and Cummins Power
Generation accepts no responsibility for providing the means of isolation.
1.4.2 Medium Voltage Generator Sets (601 V to 15 kV)
· Medium voltage acts differently than low voltage. Special equipment and training is
required to work on or around medium voltage equipment. Operation and maintenance
must be done only by persons trained and qualified to work on such devices. Improper use
or procedures will result in severe personal injury or death.
· Do not work on energized equipment. Unauthorized personnel must not be permitted near
energized equipment. Due to the nature of medium voltage electrical equipment, induced
voltage remains even after the equipment is disconnected from the power source. Plan the
time for maintenance with authorized personnel so that the equipment can be de-energized
and safely grounded.
A029R386 (Issue 1) 3

8. 1. IMPORTANT SAFETY INSTRUCTIONS 8-2009
1.5 Fuel And Fumes Are Flammable
Fire, explosion, and personal injury or death can result from improper practices.
· DO NOT fill fuel tanks while engine is running, unless tanks are outside the engine
compartment. Fuel contact with hot engine or exhaust is a potential fire hazard.
· DO NOT permit any flame, cigarette, pilot light, spark, arcing equipment, or other ignition
source near the generator set or fuel tank.
· Fuel lines must be adequately secured and free of leaks. Fuel connection at the engine
should be made with an approved flexible line. Do not use copper piping on flexible lines
as copper will become brittle if continuously vibrated or repeatedly bent.
· Natural gas is lighter than air, and will tend to gather under hoods. Propane is heavier than
air, and will tend to gather in sumps or low areas. NFPA code requires all persons handling
propane to be trained and qualified.
· Be sure all fuel supplies have a positive shutoff valve.
· Be sure battery area has been well-ventilated prior to servicing near it. Lead-acid batteries
emit a highly explosive hydrogen gas that can be ignited by arcing, sparking, smoking, etc.
1.5.1 Spillage
Any spillage that occurs during fuelling or during oil top-off or oil change must be cleaned up
before starting the generator set.
1.5.2 Fluid Containment
If fluid containment is incorporated into the bedframe it must be inspected at regular intervals.
Any liquid present should be drained out and disposed of in line with local health and safety
regulations. Failure to perform this action may result in spillage of liquids which could
contaminate the surrounding area.
Any other fluid containment area must also be checked and emptied, as above.
1.5.3 Do Not Operate in Flammable and Explosive Environments
Flammable vapor can cause an engine to overspeed and become difficult to stop, resulting in
possible fire, explosion, severe personal injury and death. Do not operate a genset where a
flammable vapor environment can be created by fuel spill, leak, etc., unless the genset is
equipped with an automatic safety device to block the air intake and stop the engine. The
owners and operators of the genset are solely responsible for operating the genset safely.
Contact your authorized Cummins Power Generation distributor for more information.
1.6 Exhaust Gases Are Deadly
· Provide an adequate exhaust system to properly expel discharged gases away from
enclosed or sheltered areas and areas where individuals are likely to congregate. Visually
and audibly inspect the exhaust daily for leaks per the maintenance schedule. Make sure
that exhaust manifolds are secured and not warped. Do not use exhaust gases to heat a
compartment.
· Be sure the unit is well ventilated.
4 A029R386 (Issue 1)

9. 8-2009 1. IMPORTANT SAFETY INSTRUCTIONS
· Engine exhaust and some of its constituents are known to the state of California to cause
cancer, birth defects, and other reproductive harm.
1.6.1 Exhaust Precautions
WARNING: Hot exhaust gas can cause burns resulting in severe personal injury.
The exhaust outlet may be sited at the top of the generator set, or at the bottom, make sure that
the exhaust outlet is not obstructed. Personnel using this equipment must be made aware of the
exhaust position.
WARNING: Contaminated insulation is a fire risk which can result in severe personal
injury.
The exhaust pipes may have some insulating covers fitted. If these covers become
contaminated by fuel or oil they must be replaced before the generator set is run.
To minimize the risk of fire, make sure the following steps are observed:
· Make sure that the engine is allowed to cool thoroughly before topping off the oil or
draining the fuel filters.
· Clean the exhaust pipe thoroughly.
A029R386 (Issue 1) 5

10. 2 Introduction
2.1 About This Manual
The purpose of this manual is to provide the users with sound, general information. This manual
provides the controller calibration and adjustment procedures, control operation, alternator test
and repair procedures and initial startup and testing of paralleled generator sets. It is for
guidance and assistance with recommendations for correct and safe procedures. Cummins
Power Generation (CPG) cannot accept any liability whatsoever for problems arising as a result
of following recommendations in this manual.
The information contained within the manual is based on information available at the time of
going to print. In line with Cummins Power Generation policy of continuous development and
improvement, information may change at any time without notice. The users should therefore
make sure that before commencing any work, they have the latest information available.
Users are respectfully advised that it is their responsibility to employ competent persons to carry
out any installation work in the interests of good practice and safety. Consult your authorized
distributor for further installation information. It is essential that the utmost care is taken with the
application, installation and operation of any engine due to their potentially hazardous nature.
Careful reference should also be made to other Cummins Power Generation literature. A
generator set must be operated and maintained properly if you are to expect safe and reliable
operation.
Should you require further assistance contact your authorized distributor.
2.2 Test Equipment
To perform the test procedures in this manual, the following test equipment must be available:
· True RMS meter for accurate measurement of small AC and DC voltages. Fluke models
87 or 8060A are good choices.
· Battery Hydrometer
· Power Factor Indicator
· Jumper Leads
· Tachometer or Frequency Mater
· Wheatstone Bridge or Digital Ohmmeter
· Variac
· Load Test Panel
· Megger or Insulation Resistance Meter
· InPower Service Tool (PC-based genset service Tool)
2.3 Schedule of Abbreviations
This list is not exhaustive. For example, it does not identify units of measure or acronyms that
appear only in parameters, event/fault names, or part/accessory names.
A029R386 (Issue 1) 7

11. 2. Introduction 8-2009
AmpSentry and InPower are trademarks of Cummins Inc. PowerCommand is a registered
trademark of Cummins Inc.
ACRONYM DESCRIPTION ACRONYM DESCRIPTION
AC Alternating Current LCT Low Coolant Temperature
AMP AMP, Inc., part of Tyco Electronics LED Light-emitting Diode
ASTM American Society for Testing and Mil Std Military Standard
Materials (ASTM International)
ATS Automatic Transfer Switch NC Not Connected
Normally Closed
AVR Automatic Voltage Regulator NFPA National Fire Protection Agency
AWG American Wire Gauge NO Normally Open
CAN Controlled Area Network NWF Network Failure
CB Circuit Breaker OEM Original Equipment Manufacturer
CE Conformite` Europeenne OOR Out of Range
CGT Cummins Generator Technologies OORH Out of Range High
ORH
CT Current Transformer OORL Out of Range Low
ORL
DC Direct Current PB Push Button
ECM Engine Control Module PC Personal Computer
ECS Engine Control System PCC PowerCommand®
Controller
EMI Electromagnetic interference PGI Power Generation Interface
EN European Standard PGN Parameter Group Number
EPS Engine Protection System PI Proportional/Integral
E-Stop Emergency Stop PID Proportional/Integral/Derivative
FAE Full Authority Electronic PLC Programmable Logic Controller
FMI Failure Mode Identifier PMG Permanent Magnet Generator
FSO Fuel Shutoff PT Potential Transformer
Genset Generator Set PTC Power Transfer Control
GCP Generator Control Panel PWM Pulse-width Modulation
GND Ground RFI Radio Frequency Interference
HMI Human-machine Interface RH Relative Humidity
IC Integrated Circuit RMS Root Mean Square
ISO International Organization for RTU Remote Terminal Unit
Standardization
LBNG Lean-burn Natural Gas SAE Society of Automotive Engineers
LCD Liquid Crystal Display SPN Suspect Parameter Number
LCL Low Coolant Level SW_B+ Switched B+
UL Underwriters Laboratories
8 A029R386 (Issue 1)

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13. 8-2009 2. Introduction
2.4 Related Literature
Before any attempt is made to operate the generator set, the Operator should take time to read
all of the manuals supplied with the generator set, and to familiarize themselves with the
Warnings and Operating procedures.
CAUTION: A generator set must be operated and maintained properly if you are to expect safe
and reliable operation. This manual includes a maintenance schedule and a
troubleshooting guide
These publications make up the complete document offering appropriate to your generator set:
· Binder (A029X093), which includes:
· Legal Statement (A028W411)
· Warranty Statement (A028U870)
· Owner Manual - Operator & Installation for C1500 D6 RG (A029P573)
· Engine Owners Manual QSK50 (A004Z956)
· Parts Manual for C1500 D6 RG (A029W957)
· Circuit Breaker Manual (A028W738)
· Battery Charger Manual (A028W740)
· Service Manual (A029R386)
· Standard Repair Times Manual (900-0904)
· Specification and Data Sheet (For engineering data specific to the generator set)
· Application Manual T-030, Liquid Cooled Generator Sets (For application information)
Contact your authorized distributor for more information regarding this products' related
literature.
2.5 After Sales Services
We offer a full range of after sales services as follows:
2.5.1 Maintenance
WARNING: Incorrect service or parts replacement can result in severe personal injury,
death, and/or equipment damage. Service personnel must be trained and
experienced to perform electrical and/or mechanical service.
For customers who wish to have their generator sets expertly serviced at regular intervals your
local distributor offers a complete maintenance contract package. This covers all items subject
to routine maintenance and includes a detailed report on the condition of the generator set. In
addition, this can be linked to a 24-hour call-out arrangement, providing year-round assistance if
necessary. Specialist engineers are available to maintain optimum performance levels from
customer’s generator sets, and it is recommended that maintenance tasks are only undertaken
by trained and experienced engineers provided by your authorized distributor.
A029R386 (Issue 1) 9

14. 2. Introduction 8-2009
2.5.2 Warranty
All generator sets have a twelve months warranty from the commissioning date as standard.
Extended warranty coverage is also available. In the event of a breakdown prompt assistance
can normally be given by factory trained service engineers with facilities to undertake all minor
and many major repairs to equipment on site.
For further warranty details contact your authorized distributor.
NOTE: Any damage caused to the generator set as a direct result of running in the
Battle Short mode will not be covered by the Warranty.
NOTE: Damaged to any component will be rejected if the incorrect mix of anti-freeze
has been used. Please contact your authorized distributor.
2.5.2.1 Warranty Limitations
Cummins Power Generation is not responsible for the repair or replacement of Product required
because of normal wear; accident; misuse; abuse; improper installation; lack of maintenance;
unauthorized modifications; improper storage; negligence; improper or contaminated fuel; or the
use of parts that do not meet Cummins Power Generation’s specifications.
2.5.3 How to Obtain Service
When the generator set requires servicing, contact your nearest Cummins Power Generation
distributor. To contact your local Cummins Power Generation distributor refer to the Global
Addresses section contained within this document. When contacting your distributor, always
supply the complete Model, Specification, and Serial Number as shown on the nameplate.
10 A029R386 (Issue 1)