4000 Switch Machine - Alstom

Point-Detector Rod AdjustmentRefer to Figure 4-2 while performing the following.1. Operate machine to mid-stroke and position a point-detector-rod spoon gauge into thenecked down portion on the track-side end of the point-detector rod. Use either the ¼-inch or the 3/8-inch end of the spoon gauge, whichever is required by railroad.2. Operate machine to close and lock the far switch point. Position the lever against thespoon gauge. If the track-side indication contacts of the point detector switch moduleare on, use the adjusting nut to adjust the position of the point-detector rod at the lugend.3. Adjust the nut until the LED on the point detector switch module turns off. Continueadjusting until latch-out occurs. Tighten and lock the lug nuts to hold this adjustmentand remove the spoon gauge. Release the latch-out condition by applying a light forceto the end of the latch out dog.4. Operate the machine to mid-stroke and position the point-detector rod spoon gauge intonecked down portion on the field side of the point-detector rod. Use either the 1/4 inchor 3/8 inch end of the spoon gauge, whichever is required by the railroad.5. Operate the machine to close and lock near the switch point. Position the lever againstthe spoon gauge; if the field side indicating contacts of the point detector switch moduleare on, adjustment is required. Adjust by first loosening the nuts on the point-detectorbar and then by either screwing in or out on the free end of the bar. Adjust nut pressureon the gauge until the light on the field-side switch turns off, immediately followed bylatch-out.6. Lock the nut in this position by screwing in the free end of point-detector rod. Removethe spoon gauge. Release the latched-out condition by applying a light force to the endof the latch-out dog.7. If point detection requirements cannot be achieved, examine all associated componentsfor wear or fault before replacing the point detector system module.8. After making adjustments in both directions, operate the machine back and forth a fewtimes to check that (1) the light still comes on, at the end of each throw-bar stroke withthe spoon gauge installed, and (2) no light comes on with the spoon gauge removed.9. Remove the hand crank (if it was used) from the main drive module. Place the machinein operation.P2444, Rev. Jan/07 4-10ALSTOM Signaling Inc.