Blog Entry# 1662429
Posted: Nov 26 2015 (18:54)
71 Responses
Last Response: Nov 30 2015 (17:06)
WAG9-LGD-31191 --- Sam picked this one up at Dankuni sidings on 15th June 2012.
Link:
click hereCourtesy: Sam
The same issue that caused the acceleration problem can also be partially responsible for wheel slips. During acceleration and normal running, when the reaction torque sets in and the front wheels rise up slightly, they become more prone to slipping and in such cases, the un-powered axle ( which in case of WDP4 is the one closest to the loco centre I guess) does not really contribute anything to mitigate the loss of tractive effort. And since the original WDP4 did not come with independent traction control for each TM, this could have potentially lead to wheel slip problems in slightly adverse conditions such as wet tracks or mild gradients. Most probably it was not a regular problem, but could potentially have caused a few issues. Addition of independent traction control could have mitigated this problem as would adding an extra TM ( will increase weight and also lower the effect...
more... of the reaction torque).