After assembly, the tank was broken in (before a turret was installed) over a distance of 23 kilometers.
The breaking in occurred at all gears:
- 2 km in first gear
- 3 km in second gear
- 4 km in third gear
- 5 km in fourth gear
- 5th, 6th, 7th, and 8th gears were broken in over a combined distance of 9 km