
Pitch Diameter Gage Operation Manual
Models MRP 1500/2500/3500
Copyright © 2018 Gagemaker. All rights reserved
14
Zeroing the MRP Gage for External Measurements Using Rod Standards
3. Place the B standard on the MRP wear pad
and move the lower arm until the end of the
pivot shoe contacts the B standard.
4. Tighten the two set screws on the lower block
to secure the arm. Repeat with the upper arm.
5. Remove the standard.
6. Using the 3/16” hex wrench, loosen the set
screws on the lower block.
7. Place the A standard between the pivot shoes.
Adjust the lower arm so the pivot shoes contact
the A standard.
8. Slide the lower block approximately .050”
closer to the upper block to give the MRP gage
the proper preload.