158 Traction Flashcards
How long is an individual 158 carriage?
23 metres
How many cars does a 158 have?
Either 2 or 3 cars
What is the max speed of a 158?
90mph
What coupler does a 158 have?
BSI
What intermediate couplings does the 158 have?
Rigid bar couplings
What does the hydrostatic system power on 158?
Alternator, air conditioning compressor and radiator fan
Does the 158 have WSP?
Yes
What type of sander does the 158 have?
Automatic sander in steps 2, 3 and emergency
Will sand be applied in step 1?
Not automatically but can be manually applied
What does the 158 do when wheelslip is detected?
The engine on the affected vehicle reverts to idle and progressively re-applies power if the controller is left in the position that wheelslip occurred
In wheelslip conditions on 158, what should you do with the power throttle?
Leave it where it is- do not reduce or close the throttle as this reduces the time window for manual sand to be applied and will prevent sand from working
What are your actions in wheelslip on 158?
Wait for engine revs to drop and then press manual sand button
Is there any indication when sand is being applied in the cab?
No
Which wheel does sand operate on?
Both 3rd wheels- first driven wheel
Where is the sander isolation switch located?
In the cab
If there is an electrical fault on the sander system, what could this result in?
BCCB tripping, TCCB tripping or wheelslip MCB tripping
Can EBS overcome a fault with the sander?
No, it will continue to exist if EBS raised on same vehicle
Does the 158 have flashing headlights?
Yes
When would you use the flashing headlights?
To indicate something is wrong to an approaching train, if not able to control the speed of your train or if you want to alert anyone to another emergency
On some 158s there is a remote supply/alternator excitation- what does this do?
Activated for front or rear illumination that can be used in event of an engine failure to cross feed between vehicles
What is unusual that sits on TW4 on a 158?
Shore supply
What is the effect if LCCB is tripped in leading cab?
Front engine shuts down, no effect on brake
What is effect if LCCB is tripped in rear cab?
That engine shuts down, no effect on brake
What is effect if TCCB trips in front cab?
Dead desk (subsequent brake demand)
What is effect if TCCB trips in rear cab?
Brake demand in leading cab. Brake and power fault.
Where is the DRIC on the 158?
Floor level by big toilet
Where is the fire isolation switch?
In bulkhead outside of cab
Where is fire test button?
In bulkhead outside of cab
Where is fire manual override?
In cab next to fire integrity
How do you access the 158?
Butterfly from outside and again inside to close door
How do you access 158 if no air?
Try middle doors first then Bowden cable- push this fully back in and then reinstate flag and butterfly to manually close door
What indication do you get from inside that the 158 door is fully closed?
Emergency light goes out when door closes
How do you manually lock out the doors on the 158?
Move flag to remove air from door
If door is completely broken, how do you secure the doors?
With bar
What type of brakes does the 158 have?
Disc brakes
What is the prep time on a 158?
5, 7, 10
What isolation cocks are under the driver’s desk?
Horn and wiper isolation cocks
What is under the 2nd man’s desk?
PBAC, MAPS
Can MAPS be toggled on the 158?
No, it is a solid state
What is located in the bulkhead wall outside of the driver’s cab?
Fire test button, fire isolation, TCA integrity TCA fault, charge supply fault, transmission fault
If compressor speed up is active in other than leading cab, does this affect brakes?
No
How can the vestibule doors be isolated?
Via local isolation switch in side panel
