Maintenance; Checking Stomper Assemblies; General Maintenance; Aerator Gear Case Timing Tips - Toro AERATOR HC 4000 Operator's Manual

Maintenance

CHECKING STOMPER ASSEMBLIES

Within the first five hours of initial machine operation and after
every 25 hours of operation thereafter, all stomper assemblies must
be checked for excessive lateral play. This must be done or major
machine component failure may result.
1. Grasp each stomper assembly at the bottom and try to move
the assembly laterally in each direction (Fig. 16). Do not move
fore and aft. There should be little or no movement of the
assembly. If there is movement, proceed to step 2. If there is
little or no movement, proceed to check the next assembly.
2. Remove the roll pin securing the castle nut to the top crank-
shaft (Fig. 17). Check the castle nut for tightness with fingers.
If the nut is very loose, rotate it clockwise until it is flush
against the outer spacer and resistance is felt.
3. Using a torque wrench, rotate the nut clockwise (tighten) until
a slot in the nut aligns with the shaft hole. Do not exceed 54
Nm (40 ft—lb.). Re-install the roll pin.
Note: The shaft is cross drilled, therefore only
should be required to align roll pin hole.

GENERAL MAINTENANCE

After each use of the machine and when clean-up is completed, per-
form the following:
Examine tines for damage and sharpness and repair or replace, as
necessary.
1. Inspect closely for signs of leakage, excessive component wear
or component damage. Repair or replace, as necessary.
2. Thoroughly wash the machine with a garden hose without a
nozzle so contamination and seal and bearing damage due to
excessive water pressure will be avoided. A brush may be used
to remove caked—on material. Use a mild detergent soap to
clean the cover. After cleaning, inspect for machine damage,
gear oil leakage, component and tine wear.

AERATOR GEAR CASE TIMING TIPS

If disassembly of the Aerator drive system is required for mainte-
18
1
⁄ turn (max)
12
Figure 17
1. Roll pin
2. Castle nut
3. Top crank
Figure 18
1. 3 o'clock position
2. 9 o'clock position
3. 12 o'clock position
4. 6 o'clock position
5. Front