Toro Groundsmaster 1200 Service Manual page 52

Assembling the Impact Arm Assembly (continued)
Installing the Impact Arm Assembly
Chassis: Service and Repairs
g241353
10. Thread rod end (1) with jam nut (2) into end of the spring shaft so that
distance from center of the impact housing mounting hole is from 73.4 to
73.7 cm (28.91 to 29.03 in); refer to
until the impact arm is installed to cutting unit.
1. Install the new pivot hub bushings (16 and 19).
2. Install the grease fitting (20) onto the pivot hub (18).
Note: The orientation of the grease fitting (20) should be towards the small
flange bushing (16).
3. Position the pivot hub assembly (18) onto the machine frame assembly.
4. Slide the lift arm pin assembly (21) through the pivot hub (18) and frame
assembly. Secure the pin assembly (21) with a bolt (22).
5. Position the impact arm assembly onto the pivot hub (18) and secure with the
washers (12), bolt (11) and lock nut (13).
6. Install the impact arm assembly (1) onto the cutting unit assembly (14) and
secure with the bolt (2), spacers (3) and nut (4).
7. Tighten the rod end jam nut.
8. Lubricate the impact arm pivot hub grease fitting.
9. Before returning the machine to service, raise and lower the cutting unit to
verify that hydraulic hoses and fittings do not contact anything throughout the
entire range of movement.
Figure 19
Figure
Page 3–24 Groundsmaster® 1200 Pull-Behind Rotary Mower
19. Do not tighten the jam nut
18235SL Rev A