Exams & Loco Preparation

In order to reduce operating costs and to maximise drivers 'handle' time on the locomotive the groups engineers prepare the locomotive as 'Fit To Run' (FTR) before each trip and start the engines.  

The FTR is carried out by authorised staff who check the locomotive thoroughly for anything that might cause injury or present danger to persons or infrastructure about the railway. It does not prove that an engine or transmission will fail later, simply that the locomotive is safe to operate. 

On D1015 the FTR comprises of a visual check of the underframe, bogies, cardan shafts and running gear (springs and brakes) and that all final drive oil levels are correct. All external doors and covers are checked, closed and secured, head and tail lights are illuminated and checked, windscreen washers and horns work are functioned (tested), cab side windows open freely and that the windows are clean. All safety systems (AWS, SSF, DVD, DSD) are checked and functioned and then engine water, oil and fuel levels are checked. Internally the loco must be clean and free of oil and grease and tools and equipment safely stored. The whole process is considered in engineering terms as equivalent to an A exam and like this exam an FTR takes around 5 hours to complete.  

Once completed and the loco is 'signed off' the FTR certificate is sent to EWS as verification and from that moment the loco is able to operate on the main line. This certificate lasts for 48 hours and once this period has run out the whole process begins again, irrespective of whether the loco has run over 1000 miles or remained on shed. 

Taken from an original guide book for drivers on how to prepare for traffic and/or correct defects on Class 52 locomotives the following details shown below show the preparation and starting procedure carried out each on D1015 Western Champion each time it is prepared for duties on the main line.

 

PREHEATING

Note: Dependant on the engine cooling water temperature preheating takes 10-75 minutes.    

(1) Enter the locomotive at the A end
1.1 Move the BIS to the ON position
1.2 Check the LOW WATER LEVEL fault indicator in the cab is BLUE. If it is RED arrange to top up the cooling water level
1.3 Select SHORE or BATTERY supply
1.4 Operate the preheater start button
1.5 Observe the preheater is operating correctly
1.6 If the STACK SWITCH operates, reset it by depressing the button located on the exhaust stack. Then restart the preheater.
Note: Only attempt three 'starts' of the preheater. If it still fails to start seek assistance
Note: If the coolant water temperature is below 110°F (43.3°C) any attempt to start the engine will cause the GENERAL ALARM light to give a RED indication.  
 

(2) Proceed to the B end

2.1 Select SHORE or BATTERY supply
2.2 Check the LOW WATER LEVEL fault indicator is BLUE. If it is RED arrange to top up the cooling water level.  
2.3 Operate the preheater start button.  
2.4 Observe the preheater is operating correctly.  
2.5  If the STACK SWITCH operates, reset it by depressing the button located on the exhaust stack. Then restart the preheater.  
2.6 Note: Only attempt three 'starts' of the preheater. If it still fails to start seek assistance.  
Note: If the coolant water temperature is below 110°F (43.3°C) any attempt to start the engine will cause the GENERAL ALARM light to give a RED indication.  

PREPARATION AND STARTING   

(1) Enter the locomotive at the A end.
1.1 Move the BIS to the ON position.
1.2 Check that the exhauster isolating switches are set to NORMAL

 

(2) Enter the A cab          

2.1 Check that the handbrake is ON
2.2 Press the transmission reset button.
2.3 Insert and turn the master key, select direction and check that the LOW WATER TEMPERATURE light is blue. If it is RED make arrangements for preheating (see 'PREHEATING).    
Note: The light will be RED if the coolant water temperature is below 110°F (43.3°C) and any attempt to start the engine will cause the GENERAL ALARM light to give a RED indication.
2.4 Return the reversing handle to OFF, turn and remove the master key
 

(3) Alight from the locomotive and complete an external check that:  

3.1 All air hoses are secured and their cocks are closed, the heating hoses are secured on their chains and that the vacuum hoses are secured on their dummy plugs.  
3.2 No depot pipes or cables are attached.  
3.3 The main lighting switch is in the LOCO or BATTERY position
(4) Enter the B end cab.    
4.1 Check that the handbrake is ON
4.2 Insert and turn the master key, select direction and check that the LOW WATER TEMPERATURE light is blue. If it is RED make arrangements for preheating (see 'PREHEATING)
Note: The light will be RED if the coolant water temperature is below 110°F (43.3°C) and any attempt to start the engine will cause the GENERAL ALARM light to give a RED indication.     
4.3 Return the reversing handle to OFF, turn and remove the master key.  
4.4 Check that the detonator case is sealed and the track circuit operating clips are in position.
4.5 Check that the hand fire extinguishers are in position
4.6 Check that the vacuum control governor and AVR / Dynostarter shorting switches are sealed.  
4.7 Test the fire alarm
4.8 Check that the MCB's are set with the red spot showing
4.9 Press the transmission reset button
4.10 Check the fuel transfer switch is at NORMAL.  
4.11 Check that the engine start and isolating switch, ESIS is at ON
4.12 Check that the water temperature starting switch is sealed.  
4.13 Check that the straight air brake is OFF.  
4.14 Check that the automatic brake valve is in the SHUT DOWN position
4.15 Check that the AWS change end switch is at OFF
 

(5) Proceed into the engine room corridor.

5.1 Check that the two hand fire extinguishers are in position
5.2 Check that the spare fuses and bulbs cabinet is equipped.  
5.3 Check the radiator and intercooler gauges
5.4 Check that the fire bottle pins are removed.
5.5 Check that the preheater switch is at BATTERY
5.6 Test the preheater
 

(6) Proceed to the first engine

6.1 Open both bus rail bleed cocks and check that no air is present in the fuel.  
6.2 Check that the local stop button is not depressed.    
 

(7) Proceed to the 'free' end of the engine in the boiler compartment   

7.1 Check the fuel and water gauges
7.2 Check that the compressor change-over switch is at NORMAL
7.3 Check that the spare CF1 and CF2 fuses are in position
7.4 Turn the GOODS / PASSENGER switch to AIR / PASSENGER
7.5 Check that the fuel barrier cock is closed.
7.6 Rotate both engines oil filters.
 

(8) Proceed to the second engine

8.1 Open both bus rail bleed cocks and check that no air is present in the fuel. 
8.2 Check that the local stop button is not depressed.  
8.3 Check that the air/vacuum isolating cock is open.  
 

(9) Proceed into the engine room corridor

9.1 Check that the two hand fire extinguishers are in position
9.2 Check that the spare fuses and bulbs cabinet is equipped
9.3 Check the radiator and intercooler gauges
 

(10) Enter the A cab.

10.1 Check that the detonator case is sealed and the track circuit operating clips are in position.  
10.2 Check that the hand fire extinguishers are in position
10.3 Check that the vacuum control governor and AVR / Dynostarter shorting switches are sealed.  
10.4 Test the fire alarm
10.5 Check that the MCB's are set with the red spot showing
10.6 Check the fuel transfer switch is at NORMAL
10.7 Check that the engine start and isolating switch, ESIS is at ON
10.8 Check that the water temperature shorting switch is sealed
10.9 Start the rear engine
10.10 Start the front engine
 

(11) Perform a brake test in 'AIR'

11.1 When a pressure of at least 95 p.s.i. is registered on the main reservoir gauge, move the automatic brake valve to RUNNING and check that a pressure of 72.5 p.s.i. (5 Bar) is registered on the brake pipe gauge.   
11.2 Move the automatic brake valve to FIRST APPLICATION and check that the brake pipe pressure falls to 63-65 p.s.i.    
11.3 Move the automatic brake valve in steps to FULL SERVICE. Check that the brake pipe pressure falls to 44-48 p.s.i. and that the brake cylinder pressure rises with each step until attains a maximum at FULL SERVICE.   
11.4 Move the automatic brake valve to EMERGENCY, check that the brake pipe pressure falls to zero and that the brake cylinder pressure remains at its maximum
11.5 Move the automatic brake valve back to RUNNING
11.6 With the brake pipe pressure at 72.5 p.s.i. (5 bar), move the reversing handle to FOR and, without the D S D peddle depressed, check that the brake pipe pressure starts to fall to zero after a short period (3-6 seconds).  
11.7 Move the automatic brake valve to SHUT DOWN and the straight air brake valve to OFF.  
11.8 Move the straight air brake valve to ON and check that the brake cylinder pressure rises to its maximum.    
11.9 Return the reversing handle to OFF.    
11.10 Remove the master key from the controller, leaving the engine(s) running.
11.11 Release the hand brake
11.12 Switch on the tail lights (where applicable)
11.13 Switch off the cab heaters and lights
 

(12) Return through the locomotive to the B cab. On the way:

12.1 Examine the engine room for defects, leakages and escape of air or exhaust gases
12.2 Check that the lubricating oil pressure is above 70 p.s.i.
12.3 Turn the GOODS / PASSENGER switch to VACUUM PASSENGER
12.4 Close both engines bus rail bleed cocks.  
12.5 Leave the engine room with all doors and windows closed
 

(13) In the B cab

13.1 Insert the master key and move the reversing handle to E.O
13.2 Move the AWS switch to ON, then press the reset button to silence the horn.    
 

(14) Perform a brake test in 'VACUUM'  

14.1

Move the automatic brake valve to RUNNING, check that the brake pipe pressure rises to 72.5 p.s.i. (5 bar) and that 21 in. Hg. registers on the vacuum gauge

14.2 Move the straight air brake valve to ON and check that the brake cylinder pressure rises to its maximum.    
14.3 Return the handle to OFF
14.4 Move the automatic brake valve to FIRST APPLICATION, check that the brake pipe pressure falls to 63-65 p.s.i. and the vacuum falls to 16-19 in. Hg.    
14.5 Move the automatic brake valve in steps to FULL SERVICE. Check that the brake pipe pressure falls to 44-48 p.s.i. and that      the brake cylinder pressure rises with each step until it attains a maximum at FULL SERVICE. Check that the vacuum is reduced to zero at FULL SERVICE.    
14.6 Move the automatic brake valve to EMERGENCY, check that the brake pipe pressure falls to zero and that the brake cylinder remains at its maximum and that the vacuum remains at zero.  
14.7 Move the automatic brake valve to RUNNING and allow the brake pipe pressure to stabilise at 72.5 p.s.i. (5 bar) and the vacuum at 21 in. Hg.    
14.8 Move the automatic brake valve to RELEASE and hold it there until the brake pipe pressure rises to approximately 76 p.s.i.  
IMPORTANT:   The handle must be held at RELEASE for one minute after the brake continuity test when attaching to an air-braked train, irrespective of the fact that the gauge reads 76 p.s.i. in a shorter period. These circumstances must not be confused, otherwise dragging brakes may result.    
14.9 Allow the handle to move back to RUNNING, check that the brake pipe pressure does not reduce to 72.5 p.s.i. (5 bar) quickly and that the vacuum remains at least at 21 in. Hg.    
14.10 Move the reversing handle to FORWARD, and without the D S D peddle depressed, check that the brake pipe pressure starts to fall to zero after a short period (3-6 seconds).  
14.11 Return the reversing handle to E.O.
14.12 Switch on the appropriate headlight or train route indicator (unless changing ends).
 

The locomotive is now ready for service (unless you are changing ends).    

 

(15) Changing ends

15.1 Move the automatic brake valve to EMERGENCY and wait until the brake pipe pressure drops to zero. When applicable allow the vacuum to be destroyed. When this has been done move to automatic brake valve to SHUT DOWN.  
15.2 Move the reversing handle to OFF and remove the master key
15.3 Move the straight air brake valve to OFF and release the handbrake
15.4 Move the AWS change end switch to OFF
15.5 Switch the tail lights ON and switch OFF the headlight or train route indicator, as appropriate.  
15.6 Switch off the cooker, cab heaters, cab lights and leave the cab with all windows and doors closed.  
15.7 Proceed to the other cab
15.8 Select AIR or VACUUM and GOODS or PASSENGER as necessary
15.9 Switch on the headlight or train route indicator, as appropriate.  
15.10 Move the straight air brake valve to on, release the handbrake and release the chamber side vacuum when applicable
15.11 Move the automatic brake valve to RUNNING
15.12 Move the AWS change end switch to ON and press the reset button to silence the horn
15.13 Insert the master key and select direction E.O.  

 

The locomotive is now ready for service.    

DISPOSAL DUTIES

1 Move the automatic brake valve to EMERGENCY and allow the brake pipe pressure to fall to zero
2 Apply the handbrake
3 Move the automatic brake valve to SHUT DOWN.
4 Move the AWS change end switch to OFF
5 Operate the vacuum release button, if vacuum has been used
6 Move the reversing handle to OFF and remove the master key
7 Proceed through the locomotive to the non-driving cab, check for obvious defects and check that the lubrication oil pressure of both engines is 57 p.s.i. or above.  
8 Operate the air release valve to release all control air from the distributor.  
9 Enter the other cab and apply the handbrake.  
10 Insert the master key and select a direction. Stop the engines, return the reversing handle to OFF and remove the master key
11 Switch off all cab heaters, route indicator or headlight, cooker and cab lights
12 Leave the cab ensuring all windows and doors are closed
13 Return the BIS to OFF
14 In the driving cab switch off all cab heaters, route indicator or headlight, cooker and cab lights.  
15 Leave the cab ensuring all windows and doors are closed
16 Switch the main lighting switch to SHED
IMPORTANT:   You must ensure that no lights are left switched on when the locomotive is unmanned and that the battery isolating switch is moved to OFF.    
17 Ensure the locomotive is fully secure and that all cab doors are locked