Contact Block Replacement And Adjustment; Figure 3-3. Method Of Closing In Of Lower Heel; Figure 3-4. Application Of Bending Tools - Hitachi PV-250 Installation Operation & Maintenance

Figure 3-3. Method of Closing in of Lower Heel

3.7.4. Contact Block Replacement and Adjustment

3.7.4.1. Contact Block Replacement Procedure
1. Remove the old block.
2. Use a small punch to remove the small dowel pins.
3. Attach the new block with the four screws.
4. Drill a (#42 drill, 0.0935" Diameter) through the dowel pin holes into the contact
block for a total depth of 9/16" +1/32 -0.
Copyright 2019

Figure 3-4. Application of Bending Tools

SM 4574F, Rev. 4, March 2019
PV-250 Track Relay
3-13