Toro Groundsmaster 1200 Service Manual page 67

Assembly of the Cutting Unit Lift Cylinder (continued)
Groundsmaster® 1200 Pull-Behind Rotary Mower
18235SL Rev A
C. Secure the piston (2) to the shaft with the lock nut (1). Tighten lock nut:
• Side cutting unit cylinder 5/8 in. lock nut to 102 Nm (75 ft-lb).
• Rear cutting unit cylinder 1/2 in. lock nut to 54 Nm (40 ft-lb).
4. Lubricate head and piston with clean hydraulic oil. Slide the shaft assembly
carefully into the cylinder barrel.
Prevent damage when clamping the cylinder's barrel into a vise;
clamp on the barrel clevis only. Do not close vise on barrel.
5. Mount lift cylinder in a vise equipped with soft jaws by clamping on the
barrel clevis.
6. Tighten the external collar (11) onto the cylinder barrel and secure with the 2
set screws.
IMPORTANT
Page 4–13 Hydraulic System: Service and Repairs