Toro Groundsmaster 360 Operator's Manual page 34

Note: To access the rear steering linkage grease fittings, the
storage compartment needs to be removed.
Note: Jack the machine off the floor to allow better grease
migration through both the upper and lower king pin
Note: Bearing life can be negatively affected by improper
wash down procedures. Do not wash down the unit when it
is still hot and avoid directing high-pressure or high volume
spray at the bearings or seals.
bushings. Grease must be observed purging out of both the
top and the bottom of the axle casting/bushing assembly
areas of all four kingpin assemblies.
Figure 31
34