200 Hp Sentinel Steam Locomotive
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200 H.P. SENTINEL STEAM LOCOMOTIVE INSTRUCTION MANUAL Preface In the following pages are set forth a considerable amount of information on the technique of driving and maintaining your Sentinel Locomotive to the best advantage. If the instructions and advice given in this book are carefully followed your Sentinel Locomotive will not fail to give good and faithful service and will no doubt earn the affection of its operators and all those concerned with it, as all good machines should. The object of this book is to help all those connected with the locomotive to give it the best possible treatment so that the locomotive may also give its best in return. In order to give operators full advantage of new developments in the locomotive itself or in repair technique or modifications, we propose to send out Service Bulletins from time to time so that everyone may be fully informed of developments. You are cordially invited to write to us if you experience any difficulties in following any of the instructions given in this book or if you require any additional information on subjects not covered. On receipt of your queries we will fully reply to your questions and if it is of general topical interest we will send out a Service Bulletin on the subject raised. By this method we hope to form a fraternity of Sentinel operators. We have kept the size of this book to reasonable proportions so that it can be carried readily in the pocket. In order to achieve this we have not reproduced detailed drawings for each section as this would increase the size of the book considerably. It is intended therefore, to read this book in conjunction with the Spare Parts Book which gives drawings of all the major components of the locomotive. One Spare Parts Book is issued with each Locomotive. It has not been possible to cover many aspects of major overhauls due to the limitation of space. When the time comes for major overhauls to be carried out on the locomotive, please consult the Sales & Service Organisation for Sentinel Locomotives, for advice, service or spares. The address is:- Messrs. Thomas Hill (Rotherham) Limited, Effingham Chambers, Effingham Street, (G.P.0. Box 12.) Rotherham, Yorks. Telephone No. Rotherham 5428 (2 lines). Page 2 CONTENTS. PREFACE GENERAL INFORMATION AND DIMENSIONS – ‘SENTINEL’ GEARED LOCOMOTIVE. INSTRUCTIONS FOR PUTTING NEW LOCOMOTIVE INTO SERVICE. 1. Fitting Driving and Coupling Chains 2. Initial Steaming of boiler 3. Running Engines and checking Lubrication System SECTION A. PREPARING LOCOMOTIVE FOR USE. 1. Details of routine lubrication and maintenance 2. Recommended Lubricating Oils and Greases. 3. Suitable types of fuel. 4. Notes on water. SECTION B. GENERAL DRIVING INSTRUCTIONS FOR PUTTING THE LOCOMOTIVE INTO AND OUT OF SERVICE. 1. Correction of water Level when steaming up, from cold 2. Starting up the Engines from cold or after standing in excess of one hour. 3. Starting up the Engines after standing in excess of ten minutes but not exceeding one hour. 4. General method of operating Locomotive - Boiler Feed Pump and Injector. 5. Putting Locomotive away. 6. Precautions against frost. SECTION C. DRIVERS CONTROLS. 1. Controls mounted on the Boiler. 2. Other Cab Controls not mounted on the Boiler. 3. Controls outside the Cab. SECTION D. GENERAL TECHNIQUE OF DRIVING A ‘SENTINEL’ LOCOMOTIVE TO THE BEST ADVANTAGE. 1. How to obtain maximum Power with Economy. SECTION E. DETAILED INDIVIDUAL INSTRUCTIONS CONCERNING THE OPERATION OF A NUMBER OF THE COMPONENTS OF THE LOCOMOTIVE. General technique of Firing including references on the use of:- 1. Blower. 2. Extra Top Air Control. 3. Fire Hole Door. 4. Ashpan Dropping Lever. 5. Use and size of Blast Nozzles. 6. Chimney Damper. 7. Use of Boiler Feed Pump and Injectors to reduce Boiler Pressure with reference to the amount of water to keep in the Boiler. (i) General Instructions on the use of Boiler Feed Pump. (ii) Method of operating Injector. 8. Method of operating Cut Off and Direction Lever (Reversing Lever). 9. Technique of Gear changing:- Method of engaging a Gear. Page 3 Method of disengaging a Gear. 10. Sanding. SECTION F. HINTS ON MAINTENANCE AND ADJUSTMENTS - ENGINE. 1. Engine Valve clearance and construction of adjustment components. 2. Method of checking Valve clearances. 3. Method of adjusting Valve clearances. 4. Method of removing a Push Rod. 5. Method of replacing a Push Rod. 5. Difficulties - Access to Valve Adjusters on number 2 cylinder. 7. Grinding of Engine Valves and cutting Valve Seats. B. Cam Follower Packings. 9. Method of timing the Engines (Valve Timing). 10. Fitting and replacement of Piston Rings. 11. Repacking of Piston Glands. SECTION G. HINTS ON MAINTENANCE AND ADJUSTMENTS - PUMPS. 1. Cylinder Lubricator. 2. Data on Rotoplunge Oil Pump and description of its construction. 3. Maintenance Points on the Rotoplunge Oil Pump. 4. Method of dismantling Rotoplunge Pump. 5. Method of re-assembling Rotoplunge Pump. 6. Engine Lubrication System. 7. Data on and description of Boiler Feed Pump. 8. Method of adjusting Boiler Feed Pump Valve Gear. SECTION H. HINTS ON MAINTENANCE AND ADJUSTMENTS - BOILER & AUXILIARIES. 1. Method of fitting a Water Gauge Glass and additional information. 2. Tightening down of Boiler and the fitting of the Boiler Top and Bottom Joint Rings. 3. Notes on Boiler Fusible Plug. 4. Notes on Cleaning of Blast Nozzles and Blower Rings and Blast Pipe Elbow. 5. Washout and cleaning of Boiler. 6. Use of Soot Blower. SECTION J. HINTS ON MAINTENANCE AND ADJUSTMENTS - AXLES & RUNNING GEAR. 1. Method of adjusting Axles. 2. Notes on Driving Chain adjustment. 3. Method of adjusting Brakes. SECTION K. FAULT LOCATION AND REMEDIES. The following faults are dealt with:- 1. Difficulty in maintaining adequate boiler pressure . Possible causes referred to:- (i) Pancake of Clinker on Fire Bars. (ii) Poor quality fuel. (iii) Tube Stack and Superheater blocked with soot. 1a. Engines using an excessive quantity of steam caused by:- Page 4 (i) Incorrect Engine Valve clearances. (ii) Sticking Engine Valves. (iii) Release Valve stuck open. 2. Power falling off from Engines when Steam Pressure is maintained. Possible causes referred to:- (i) Incorrect Engine Valve clearances. (ii) Sticking Valves. (iii) Piston Rod Steam Packings blowing. (iv) Worn Piston Rings. (v) Worn Valve Faces and Seats. (vi) Badly worn Valve Guides and Valve Stems. (vii) Faulty Cylinder Release Valves. 3. Lack of Oil Pressure etc. Possible causes referred to:- (i) Water in Sump Oil. (ii) Dirty Sump Filter. (iii) Sucking of air on suction side of Rotoplunge Oil Pump. (iv) Excessive Engine oil consumption (Crankcase). 4. Boiler Troubles. Possible causes referred to:- (i) Boiler Priming. (ii) Blow of Steam inside Boiler Fire-Box caused by one of the following:- a) Blow of steam past Holding-down Studs. b) Blow of steam from Top or Bottom Joint Rings. c) Burst Boiler tube. d) Burst Superheater Coil. SECTION L. TOOLS AND ACCESSORIES . SECTION M. HAULAGE CAPACITY AND SPEED TABLES OF LOCOMOTIVE . Page 5 GENERAL INFORMATION AND DIMENSIONS - 200 HP ‘SENTINEL’ LOCOMOTIVE A. GENERAL INFORMATION 1. Data of commencement of production and type. DE/DG 1951 2. Wheel Arrangement: 0-4-0 3. Minimum Curve Radius: 60ft. 4. Weight in working order: 34 tons. 5. a) Tractive effort – Low gear: 0-2½ mph. 20,630 lbs. Adhesive limit. b) Tractive effort – High gear: 0-2½ mph. 9,650 lbs. c) Gear ratios – high gear – 2.355/1 low gear – 5.928/1 6. Fuel Bunker Capacity: 10/12 cwts. of COAL ACCORDING TO CLASS OF FUEL USED. 7. Water Tank Capacity: 660 gallons. 8. Engine crankcase oil capacity: 5 gallons in each of 2 engines. 9. Reduction gear case oil capacity: High gear – 5 galls Low gear – 5 galls. 10. Delvac Cylinder Lubricator Oil Pump Container Capacity: 3 pints. 11. Chain Lubricators: a) Adjustable (Individual): Drip feed containers (2) – Single Drip Feed 1 pint each. (Alternatively on later models) Double Drip Feed 2 pints. b) Cylindrical Single Container with wick feeds (1) 1½ gls. 12. Axle boxes: Armstrong oilers (4) – 3 pints each to level pin. 13. Mechanical Lubricator For Worthington Boiler Feed Pump: 2 pints, initial filling. Supplied by Andy Chapman of Somerset & Dorset Railway Heritage Trust, Midsomer Norton for HRA Training, & Education Committee 01.08.2017 - Further information can be obtained from Andy Chapman at [email protected] Page 6 B. DIMENSIONS and DATA Length over headstocks 20’ 11” Length over buffers 23’ 8” Width overall 8’ 0” Height overall, with spark arrester, internal type 10’ 3¾” Gauge 4’ 8½” Wheelbase (nominal) 5’ 6” Journal size 10” x 5½” Wheel diameter on tread 38” ENGINES: “Sentinel” vertical enclosed high-speed (Two fitted) 2 cylinder double acting, with reduction gear. Bore and stroke 6¾” x 9” Normal max RPM 500 Absolute max RPM 600 Max BHP (at 275 psi) 105 per engine Valve operating gear Camshaft Valve type Poppet Cut-offs (in each direction) approx 75% and 40% Weight of one engine 21 cwts. 1 qr. BOILER: “Sentinel” vertical water-tube type. Classification VL/43/C/275 Rated evap. (lbs/hour) 4300 Water capacity to top of gauge glass 213 gallons Weight of boiler (shell and firebox only without 2T 17 cwts. mountings and superheater coil) Used with Good coal of 13500 B.TH/U/lb. Working pressure (psi) 275 Heating surfaces (Sq. ft.) Tubes 92.4 Firebox 51.0 Superheater 41.2 Grate area (Sq. ft.) 6.5 Grates Plain Page 7 INSTRUCTIONS FOR PUTTING A NEW LOCOMOTIVE INTO SERVICE. 1. FITTING OF DRIVING AND COUPLING CHAINS. The procedure outlined below is recommended from the point of view of simplicity and ease of handling. This method requires two men. Set the locomotive in position, preferably over a pit if one is available.