MTD 700 Series - 3-Stage Gear Boxes

Medium Frame 2 & 3 Stage Snow Throwers
78
3-Stage Gear Boxes
To rebuild a 3-stage Gear Box:
1. Remove the Gear Box by following the procedures
described in the Auger Assemblies section of this
chapter.
2. Remove the four screws that secure the cover to the
gear box housing using a 3/8” wrench. See Figure
7.31.
3. Gently lift the cover off of the Gear Box.
4. Drain the gear box into an approved container.
5. Remove the left seal, as viewed from the operator’s
position.
6. Remove the snap ring. See Figure 7.32.
7. Gently drive the Output Shaft out of the Gear Box
from right to left.
NOTE: The key on the Output Shaft will drive out
the left bearing. See Figure 7.33.
Figure 7.31
Cover
Figure 7.32
Snap Ring
Figure 7.33
Key