Clarke DQ6H-UFAA98 - User Manual

C133292 rev AF
1/12/22
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
FAX: +44(0)1236 427274
TELE: +1.513.771.2200 Ext. 427
FAX: +1.513.771.5375
www.clarkefire.com

Summary

1.0 INTRODUCTION

1.1 IDENTIFICATION;NAMEPLATE

Details engine and manufacturer identification plates and model numbering.

1.2 SAFETY;CAUTION;WARNINGS

General safety precautions and warnings for engine operation and maintenance.

2.0 INSTALLATION;OPERATION

2.1 TYPICAL INSTALLATION

2.2 ENGINE STORAGE

2.3 INSTALLATION INSTRUCTIONS

2.4 SPECIFIC FLYWHEEL COUPLING ALIGNMENT INSTRUCTIONS

2.4.1 Listed Driveshafts

2.4.2 Driveshaft

2.5 STARTING;STOPPING THE ENGINE

2.5.1 To Start Engine

Step-by-step guide for starting the engine, including manual operation.

2.5.1.1 Optional Pneumatic Starting System

2.5.2 To Stop Engine

2.5.3 Emergency Stop Instructions

2.6 WEEKLY TEST

3.0 ENGINE SYSTEMS

3.1 FUEL SYSTEM

Covers diesel fuel specifications and requirements for fire pump engines.

3.1.1 Diesel Fuel Specification

Details diesel fuel standards, quality, and testing for reliability.

3.1.2 Bleeding the Fuel System

3.1.3 Changing the Fuel Filter Cartridges

3.2.5 Exhaust System

3.3 LUBRICATION SYSTEM

3.3.1 Checking Sump Oil

3.3.2 Changing Engine Oil

3.3.3 Changing Oil Filter Cartridge

3.3.4 Oil Specification

3.4 COOLING SYSTEM

3.4.1 Intended Engine Operating Temperature

3.4.2 Engine Coolant

3.4.5 Coolant Inhibitor

3.4.6 Procedure for Filling Engine

3.4.6.1 Partial Fill

3.4.7 Providing adequate Raw Water Supply to the Engine Heat Exchanger

3.4.7.1 Raw Water Supply

3.4.7.2 Cooling Loop

3.4.7.3 Setting Raw Water Flow Rate

3.4.7.5 Raw Water Quality, Strainers and Deterioration of Heat Exchanger (or CAC)

3.4.9 IMPORTANT SERVICE NOTICE

3.4.9.1 Cavitation

3.5.2 Checking Drive Belt Tension and Adjustment

3.5.3 Speed Switch (when supplied)

3.5.4 Magnetic Pick-Up (when supplied)

3.5.5 Mechanical Engine Control and Alarm Board (MECAB) Speed Switch Troubleshooting

3.5.6 FIELD SIMULATION OF PUMP CONTROLLER ALARMS

3.5.7 BATTERY REQUIREMENTS

3.6 ENGINE SPEED ADJUSTMENT

4.0 MAINTENANCE SCHEDULE

4.1 ROUTINE MAINTENANCE

Routine maintenance schedule based on engine usage, with periodic checks.

5.0 TROUBLE SHOOTING

6.0 PARTS INFORMATION

6.1 SPARE PARTS

8.0 WARRANTY

8.1 GENERAL WARRANTY STATEMENT

Overview of warranty responsibilities and support for Clarke engines.

8.2 CLARKE WARRANTY

Details Clarke's warranty duration and coverage for components.

DEFINITION OF ENGINE RATING

FIRE PUMP POWER RATING

APPLICATION OF WARRANTY CLAIMS

Clarke DQ6H-UFAA98 Specifications

General

Engine Model	DQ6H-UFAA98
Displacement	196cc
Fuel Tank Capacity	3.6 Liters
Oil Capacity	0.6 Liters
Starting System	Recoil Start
Weight	16 kg
Max Power	6.5 HP
Fuel Type	Unleaded petrol
Engine Type	4-stroke, single cylinder, air-cooled