1) WORN GIRTH GEAR
With less than 0.5mm of involute wear.

2) WORN SOFT PINION
With over 5mm of wear.

3) INSTALL HOFMANN CASE
HARDENED PINION

4) APPLY H0FMANN PROCEDURE.

1. Measure involute wear on gear.
2. Clean and crack detect gear using magnetic particle method.
3. Install Hofmann case hardened pinion. Case hardness must exceed 55HRC.
4. Laser align drive train.
5. Accurately in-situ grind girth gear using the case hardened pinion as a master.
6. Apply Hofmann Grafloscon A-C1 Ultra primer to pinion and gear.
7. Inspect lubrication system and connect running-in lubricant Hofmann
   Grafloscon B-SG00 Ultra.
8. Start gear drive slowly increasing the power as the contact improves.
9. Apply repair Chemical Etch Hofmann Grafloscon D-SG00 Ultra to heavy
   contact areas until good contact is achieved.
10. Monitor and completely document the installation procedure.

5) FINAL GEAR CONTACT

6) FINAL PINION CONTACT