Table of Contents
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Operation and Maintenance
Instructions Manual
DP/DQ/DR/DS/DT MODEL ENGINES
FOR
FIRE PUMP APPLICATIONS
Clarke UK, Ltd.
Clarke Fire Protection Products, Inc.
Unit 1, Grange Works
100 Progress Place
Lomond Road
Cincinnati, OH 45246
Coatbridge
U.S.A.
ML5 2NN
United Kingdom
TELE: +44(0)1236 429946
TELE: +1.513.771.2200 Ext. 427
FAX: +44(0)1236 427274
FAX: +1.513.771.5375
www.clarkefire.com
C133292 rev AF
1/12/22
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Table of Contents
Troubleshooting
Related Manuals for Clarke DQ6H-UFAA60
Summarization of Contents
1.0 INTRODUCTION
1.1 IDENTIFICATION AND NAMEPLATE
Identifies engine and manufacturer plates, and explains model numbering.
1.0 INTRODUCTION
1.2 SAFETY CAUTION AND WARNINGS
General safety warnings about high temperatures, moving parts, and basic operational rules.
9.0 EMERGENCY PROCEDURES
FIRST AID AND EMERGENCY RESPONSE
Covers immediate actions for fire, burns, CO poisoning, caustic burns, electrocution, and wounds.
2.0 INSTALLATION AND OPERATION
2.1 TYPICAL INSTALLATION
Illustrates a standard fire pump engine installation with key components.
WARNING LABELS OVERVIEW
Explains various warning labels on the engine regarding safety and operation.
2.0 INSTALLATION AND OPERATION
2.2 ENGINE STORAGE
Provides instructions for short-term and extended storage of engines.
2.0 INSTALLATION AND OPERATION
2.3 INSTALLATION INSTRUCTIONS
Details critical installation requirements for cooling, exhaust, induction, and fuel systems.
2.4 SPECIFIC FLYWHEEL COUPLING ALIGNMENT
2.4.1 LISTED DRIVESHAFTS
Refers to manual for listed driveshaft installation and maintenance.
2.4 SPECIFIC FLYWHEEL COUPLING ALIGNMENT
DRIVESHAFT ALIGNMENT CHECKS
Step-by-step guide for checking horizontal and vertical parallel offset and angular alignment.
2.5 STARTING AND STOPPING THE ENGINE
2.5.1 TO START ENGINE
Instructions for starting the engine, including pre-start checks and manual start procedures.
2.5 STARTING AND STOPPING THE ENGINE
2.5.1.1 OPTIONAL PNEUMATIC STARTING SYSTEM
Details the schematic and wiring for an optional pneumatic starting system.
2.5 STARTING AND STOPPING THE ENGINE
2.5.2 TO STOP ENGINE
Procedures for stopping the engine using the main pump controller or gauge panel.
2.5.3 EMERGENCY STOP INSTRUCTIONS
How to use the emergency stop lever to shut down the engine.
3.0 ENGINE SYSTEMS
3.1 FUEL SYSTEM
Covers diesel fuel specifications, testing, and maintenance requirements.
3.0 ENGINE SYSTEMS
3.1.2 BLEEDING THE FUEL SYSTEM
Step-by-step guide for bleeding air from the fuel system after service.
3.0 ENGINE SYSTEMS
3.1.3 CHANGING THE FUEL FILTER CARTRIDGES
Instructions on replacing fuel filter cartridges and bleeding the system.
3.0 ENGINE SYSTEMS
3.1.4 FUEL TANKS
Guidance on fuel tank maintenance, level, and head requirements.
3.2 AIR AND EXHAUST SYSTEM
3.2.1 AMBIENT CONDITIONS AND VENTILATION
Discusses ambient conditions, ventilation, and air cleaner requirements.
3.2 AIR AND EXHAUST SYSTEM
AIR FILTER SERVICE INSTRUCTIONS
Detailed steps for cleaning and servicing the reusable air filter elements.
3.2 AIR AND EXHAUST SYSTEM
3.2.4 CRANKCASE VENTILATION
Explains open and closed crankcase ventilation systems for different engine models.
3.2 AIR AND EXHAUST SYSTEM
3.2.5 EXHAUST SYSTEM
Importance of proper exhaust system design for performance and life.
3.3 LUBRICATION SYSTEM
3.3.1 CHECKING SUMP OIL
Covers checking sump oil, changing oil, and oil specifications.
3.3 LUBRICATION SYSTEM
3.3.2 CHANGING ENGINE OIL
Procedure for draining and refilling engine oil, including torque specs.
3.3.3 CHANGING OIL FILTER CARTRIDGE
Steps for replacing the engine oil filter cartridge.
3.3 LUBRICATION SYSTEM
3.3.4 OIL SPECIFICATION
Specifies the API symbol and viscosity grade for engine oil.
3.4 COOLING SYSTEM
3.4.1 INTENDED ENGINE OPERATING TEMPERATURE
Discusses intended operating temperature, engine coolant, and water requirements.
3.4 COOLING SYSTEM
3.4.3 WATER QUALITY AND INHIBITORS
Importance of water quality, mineral content, and inhibitors for cooling system.
3.4.4 COOLANT CAPACITIES
Lists coolant capacities for different engine models.
3.4.5 COOLANT INHIBITOR
Emphasizes the importance of proper coolant inhibition and types to use/avoid.
3.4 COOLING SYSTEM
3.4.6 PROCEDURE FOR FILLING ENGINE
Step-by-step guide for filling the engine cooling system and purging air.
3.4 COOLING SYSTEM
3.4.7 RAW WATER SUPPLY AND COOLING LOOP
Explains the need for raw water supply for heat exchanger cooled engines and cooling loop.
3.4 COOLING SYSTEM
3.4.7.3 SETTING RAW WATER FLOW RATE
Critical procedure for setting raw water flow rate for proper engine cooling.
3.4 COOLING SYSTEM
3.4.7.5 RAW WATER QUALITY, STRAINERS, AND HEAT EXCHANGER
Importance of clean strainers and maintaining the heat exchanger.
3.4 COOLING SYSTEM
COOLING SYSTEM FLOW PATH DIAGRAMS
Visual diagrams illustrating coolant and raw water flow paths for different engine models.
3.4 COOLING SYSTEM
3.4.9 IMPORTANT SERVICE NOTICE
Guidance on addressing high coolant temperature alarms and potential causes.
3.4.9.1 CAVITATION
Explains cavitation in coolant flow and its causes.
3.5 ELECTRICAL SYSTEM
3.5.1 WIRING DIAGRAMS
Provides drawing numbers for DC and AC voltage wiring diagrams.
3.5 ELECTRICAL SYSTEM
3.5.2 CHECKING DRIVE BELT TENSION AND ADJUSTMENT
Procedures for checking and adjusting drive belt tension for efficient operation.
3.5.3 SPEED SWITCH
Explains overspeed detection, shutdown, and reset procedures.
3.5 ELECTRICAL SYSTEM
3.5.4 MAGNETIC PICK-UP
Details the function and installation of the magnetic pick-up for speed sensing.
3.5.5 MECAB SPEED SWITCH TROUBLESHOOTING
Troubleshooting guide for MECAB speed switch malfunctions and status lamps.
3.5 ELECTRICAL SYSTEM
MECAB SPEED SWITCH TROUBLESHOOTING (CONT.)
Specific troubleshooting steps for various blink codes indicating sensor or circuit faults.
3.5 ELECTRICAL SYSTEM
MECAB SPEED SWITCH TROUBLESHOOTING (CONT.)
Troubleshooting for oil pressure switch or engine speed sensor malfunctions.
3.5.6 FIELD SIMULATION OF PUMP CONTROLLER ALARMS
Procedures for simulating pump controller alarms for testing purposes.
3.5 ELECTRICAL SYSTEM
3.5.7 BATTERY REQUIREMENTS
Specifies the required battery type, size, and cold cranking amps.
3.6 ENGINE SPEED ADJUSTMENT
ENGINE SPEED ADJUSTMENT PROCEDURE
Guides on adjusting engine speed via the governor and fuel injection pump.
4.0 MAINTENANCE SCHEDULE
4.1 ROUTINE MAINTENANCE
Outlines weekly, 6-month, yearly, and 2-year maintenance tasks.
5.0 TROUBLE SHOOTING
TROUBLE SHOOTING GUIDANCE
Directs users to consult dealers or factory for troubleshooting assistance.
6.0 PARTS INFORMATION
6.1 SPARE PARTS
Information on ordering genuine Clarke spare parts and contact details.
8.0 WARRANTY
8.1 GENERAL WARRANTY STATEMENT
Outlines the overall warranty policy for Clarke and Doosan components.
8.0 WARRANTY
8.2 CLARKE WARRANTY
Details the duration and coverage of Clarke's warranty for components.
APPLICATION OF WARRANTY CLAIMS
Lists required information for submitting a warranty claim.
8.0 WARRANTY
SUPPLIER AND BUYER RESPONSIBILITIES
Defines responsibilities for warranty claims, repairs, and parts.
12.0 APPENDIX ALPHA INDEX
APPENDIX ALPHA INDEX
An alphabetical index of subjects and their corresponding page numbers.
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