Checking The Hydraulic Lines And Hoses; Cutting Unit Maintenance; Removing The Cutting Units - Toro Groundsmaster 4500-D Operator's Manual

Figure 118
3. Lower and secure the operator's seat.
4. Replace the return filter at the right side of the
machine (Figure
5. Start the engine and let it run for about 2 minutes
to purge air from the system. Shut off the engine
and check for leaks.
Checking the Hydraulic
Lines and Hoses
Service Interval: Before each use or daily
Inspect the hydraulic lines and hoses daily for
leaks, kinked lines, loose mounting supports, wear,
loose fittings, weather deterioration, and chemical
deterioration. Make all necessary repairs before
operating the machine.
118).

Cutting Unit Maintenance

Removing the Cutting Units

1. Park the machine on a level surface, engage the
parking brake, lower the cutting units, shut off
the engine, and remove the key.
2. Disconnect and remove the hydraulic motor
g036709 from the cutting unit
of the spindle to prevent contamination.
1. Motor-mounting screws
3. Remove the lynch pin (for Groundsmaster 4500
machines) or retaining nut (for Groundsmaster
4700 machines) securing the cutting unit-carrier
frame to the lift-arm pivot pin
g031621
1. Lynch pin
4. Roll the cutting unit away from the machine.
76
(Figure 119). Cover the top
Figure 119
(Figure 120).
Figure 120
2. Lift-arm pivot pin
g011351
g011352