Rules and Instructions

Sections

• 236.326
  § 236.326 Mechanical locking removed or disarranged; requirement for permitting train movements through interlocking.
• 236.327
  § 236.327 Switch, movable-point frog or split-point derail.
• 236.328
  § 236.328 Plunger of facing-point lock.
• 236.329
  § 236.329 Bolt lock.
• 236.330
  § 236.330 Locking dog of switch-and-lock movement.
• 236.331-236.333
  §§ 236.331-236.333 [Reserved]
• 236.334
  § 236.334 Point detector.
• 236.335
  § 236.335 Dogs, stops and trunnions of mechanical locking.
• 236.336
  § 236.336 Locking bed.
• 236.337
  § 236.337 Locking faces of mechanical locking; fit.
• 236.338
  § 236.338 Mechanical locking required in accordance with locking sheet and dog chart.
• 236.339
  § 236.339 Mechanical locking, maintenance requirements.
• 236.340
  § 236.340 Electromechanical interlocking machine; locking between electrical and mechanical levers.
• 236.341
  § 236.341 Latch shoes, rocker links, and quadrants.
• 236.342
  § 236.342 Switch circuit controller.