Problem med C2O Tunnelbanan

[leoj]

Troligen är det detta:

Ursprungligen postat av Trs manualen kap 12.13.4

For each throttle position, a definite maximum load current and corresponding
tractive effort may be developed. The increase as the throttle is moved from
one position to the next is immediate. Since the total tractive effort of the
locomotive is divided into eight steps available at the eight throttle notches, it
is necessary to advance all the way into the last notch in order to develop full
tractive power. Further, since the current is controlled, it is perfectly safe to do
so, in fact it is often necessary under certain conditions.
The load indicating meter or Ammeter provides the best guide for throttle
handling when accelerating a train. By observing this meter, it will be noted
that the pointer moves to the right (increased amperage) as the throttle is
advanced. Thus for maximum acceleration without slipping, the throttle should
be advanced one notch each time the pointer begins moving back toward the
left, until full power is reached in notch 8.
It is well understood that the worst treatment that can be given to a traction
motor is to allow it to stand at "stall" for any appreciable length of time with
load current applied to it. It is therefore most important, having given due care
to ensure that the brakes are released, and that the train slack is out, to start
the locomotive to move as quickly as possible, accelerating to a speed that will
bring the load meter pointer down in a minimum of time.
When starting off, it is good practice to advance the throttle promptly to a notch
that will start the train moving. If after starting, acceleration is too fast, you can
back off the throttle once all the slack is out, in order to maintain desired
speed. Once the slack has run out, the throttle may be advanced as desired
to suit operating conditions and the needs of the schedule. It is good practice
to hesitate at each notch position, to allow the engine to come up to the new
run speed, and to prevent slipping.

Ursprungligen postat av 12.15.5 Wheelslip

For various reasons, the locomotive may break traction which may occur
during motoring or braking. Possible causes of wheel-slip are many, ranging
from bad weather, to leaves on the rails.
Sand is used to control wheelslip. It is poured onto the track via pipes which
open ahead of the driving wheels increasing the friction between the steel
wheels and the steel rails. It will often be necessary to reduce power in order
to regain traction once wheel-slip has begun. This sanding system can be
activated by moving the appropriate lever in the cab View or can be toggled
on and off by pressing "V" . If the wheel slip is light reduce the Regulator, apply
sand and advance the Regulator again.