Checking The Warning Indicator Lights; Pushing Or Towing The Machine; Operating Characteristics - Toro 30582 Groundsmaster 580-D Operator's Manual

Checking the Warning
Indicator Lights
Each day, before operating assure all warning lights are
functioning:
1. Sit on seat and apply parking brake. Turn ignition key
ON and push TEST button. All lights should illuminate.
2. If a light fails to illuminate, replace the bulb and test
again.

Pushing or Towing the Machine

In an emergency, the machine can be moved by the
following methods:
• Actuate the bypass valve in the variable displacement
hydraulic pump and push or tow the machine.
• Unlock the front hubs and tow the machine.
Danger
There is no effective braking on the machine when
the wheel hubs are disengaged. Unless it is on a
level surface or the wheels are blocked, the
machine will move freely.
Do not unlock the wheel hubs without either
blocking the wheels or connecting the machine to a
towing vehicle by means of a rigid towing device.
Pump Bypass Method
Use this method for short distances only.
Important Do not push or tow the machine faster than
2–3 mph (3–4.8 km/hr) because internal transmission
damage may occur. The bypass valve must be open
whenever the machine is pushed or towed by this method.
We do not recommend that this process be used as standard
procedure.
1. Bypass valve is located in left side of variable
displacement pump (Fig. 31). Rotate the valve 1/2 to 1
turn counterclockwise to open and allow oil to by–pass
internally. Because fluid is bypassed, the machine can
be slowly moved without damaging the transmission.
2. Rotate the valve clockwise until it is securely seated
before starting the engine. However, do not exceed
5–8 ft.-lb. (7–11 N m) torque to close the valve.
Important Running the engine with the bypass valve
open will cause the transmission to overheat.
1. Bypass valve
Unlocked Hub Method
1. Either block the wheels or connect the machine to a
towing vehicle with a rigid towing device.
Danger
The vehicle will roll with the front wheel hubs
disengaged, and there will be no effective braking.
• Park the vehicle on a level surface or block the
wheels before unlocking the wheel hubs.
• Do not remove the wheel blocks or towing
devices until the wheel hubs are securely locked.
2. Remove bolts securing the disengage covers to both
front wheel hubs.
3. Face the dimpled portion of the disengaged covers
inward and reinstall the covers. Wheel hubs are now
unlocked.
4. Lock the wheel hubs immediately after towing
operations are completed. Remove disengage covers
and reinstall with the dimpled portion facing away from
the wheel hubs.

Operating Characteristics

Familiarization
Before mowing for the first time, practice operating in a
large, open and relatively level area. Start and stop the
engine, operate in forward and reverse in LOW RANGE
ground speed. Practice using the cruise control. Lower and
raise cutting units individually and simultaneously. When
thoroughly familiar with machine functions, practice
operating around trees and obstacles while using the
individual wheel brakes. Also operate up and down slopes
(IN LOW RANGE).
32
1
Figure 31