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Clarke DQ6H-NLKA60 User Manual

Clarke DQ6H-NLKA60
49 pages
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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

Table of Contents

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Clarke DQ6H-NLKA60 Specifications

General IconGeneral
BrandClarke
ModelDQ6H-NLKA60
CategoryEngine
LanguageEnglish

Summary

Introduction

Safety, Caution, and Warnings

Crucial safety guidelines and warnings for operating the engine safely.

Installation and Operation

Warning Labels

Details the meaning and importance of various warning labels applied to the engine.

Specific Flywheel Coupling Alignment Instructions

Detailed instructions for ensuring proper alignment of the engine and pump shafts.

Driveshaft

Procedures for checking driveshaft alignment and tightening torque values.

Starting and Stopping the Engine

Comprehensive steps for safely starting and stopping the engine.

To Start Engine

Step-by-step instructions for initiating engine operation.

To Stop Engine

Procedures for stopping the engine via the main controller or gauge panel.

Emergency Stop Instructions

Guides on using the emergency stop lever for immediate engine shutdown.

Engine Systems

Fuel System

Covers diesel fuel specifications, testing, and maintenance requirements.

Checking Sump Oil

Instructions for checking the engine oil level using the dipstick.

Changing Engine Oil

Step-by-step guide for draining and refilling engine oil.

Cooling System

Covers coolant types, capacities, filling, and raw water supply.

Providing Adequate Raw Water Supply to the Engine Heat Exchanger

Explains the necessity of raw water for heat exchanger cooled engines.

Raw Water Supply

Importance of a clean and sufficient raw water source for engine cooling.

Setting Raw Water Flow Rate

Critical procedures for setting and verifying the raw water flow rate for proper cooling.

Cavitation

Explains the phenomenon of cavitation and its potential causes and effects on engine components.

Speed Switch (when supplied)

Explains the function, overspeed shutdown, and verification of the speed switch.

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

Troubleshooting guide for MECAB system malfunctions and status lamp indications.

Engine Speed Adjustment

Maintenance Schedule

Routine Maintenance

Outlines routine maintenance tasks based on engine usage, referencing NFPA25.

Trouble Shooting

Warranty

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