21
Tuff Torq K61 Hydrostatic Transaxle
Control Shaft & Fulcrum Assembly
1. Install a new O-ring onto the Control Shaft.
(Fig. 12)
Apply a light coating of grease to the surface of
the new O-ring. Also, apply a small amount of grease
around the mating hole of Upper Case.
Fig. 12, Control Shaft/Torsion Spring Assembly
2. Install a new O-ring onto the Fulcrum (If applicable for
your model).
(Fig. 13)
Apply a light coating of grease to the surface of
the new O-ring. Also, apply a small amount of grease
around the mating hole of Upper Case.
Fig. 13, Fulcrum
3. Place the head of the Fulcrum between the legs of the
Torsion Spring.
(Fig. 14 )
Fig. 14, Fulcrum –Control Shaft Assembly
4. Apply an ample amount of grease to the inside surface
of the Shift Blocks and to the pivot ball; then, press the
Shift Blocks to the pivot ball. The grease will help retain
the Shift Blocks in position during installation and align-
ment of the Swash Plate Assembly.
See “Swash Plate
Assembly” step 3 on page 24.
(Fig. 15)
5. Align the Fulcrum and Control Shaft Assembly with mat-
ing holes on the Upper Case; then, press into place.
6. Rotate the Fulcrum until maximum distance is achieved
between the Fulcrum head and the Control Shaft Spool.
(Fig. 15)
Fig. 15, Shift Blocks – Fulcrum Assembly