Using The Differential Lock; Breaking In A New Machine - Toro 07390 Workman HDX-Auto Operator's Manual

1. Speed-range lever
2. T (transport range)
3. D (high range)

Using the Differential Lock

WARNING
Tipping or rolling the vehicle on a hill can cause a
serious injury.
• The extra traction available with the differential
lock can be enough to get you into dangerous
situations such as climbing slopes that are too
steep to turn around. Be extra careful when
operating with the differential lock on, especially
on steeper slopes.
• If the differential lock is on when making a
sharp turn at a higher speed and the inside rear
wheel lifts off the ground, there may be a loss of
control which could cause vehicle to skid. Use
the differential lock only at slower speeds.
CAUTION
Turning with the differential lock on can result
in loss of vehicle control. Do not operate with
differential lock on when making sharp turns or at
high speeds.
The differential lock increases the traction of the vehicle by
locking the rear wheels so that 1 wheel will not spin out.
This can help when you have heavy loads to haul on wet
turf or slippery areas, going up hills, and on sandy surfaces.
It is important to remember that this extra traction is only
for temporary limited use. Its use does not replace the safe
operation already discussed concerning steep hills and heavy
loads.
Figure 33
4. C (mid-high range)
5. B (mid-low range)
6. A (low range)
The differential lock causes the rear wheels to spin at the
same speed. When using differential lock your ability to make
sharp turns is somewhat restricted and may scuff the turf. Use
the differential lock only when needed and at slower speeds.
Note: Vehicle motion plus a slight turn is required to engage
or disengage differential lock.
•
Press the differential-lock switch up to lock the differential
(Figure 34).
Note: The light in the differential-lock switch will
illuminate when the switch is in the lock position.
•
Press the differential-lock switch up to unlock the
differential (Figure
1. Lock position
(differential-lock switch)

Breaking in a New Machine

Service Interval: After the first 100 hours
•
Check the fluid and engine oil levels regularly and be alert
for indications of overheating in any component of the
vehicle.
•
After starting a cold engine, let it warm up for about 15
seconds before shifting into gear.
Note: Allow more time to warm-up the engine when
operating in cold ambient temperatures.
•
Avoid racing the engine.
•
To ensure optimum performance of the brake system,
burnish (break–in) the brakes before use. To burnish the
brakes, bring the vehicle up to full speed, apply the brakes
to rapidly stop the vehicle without locking up the tires.
Repeat this 10 times, waiting 1 minute between stops to
avoid overheating the brakes. This is most effective if the
vehicle is loaded with 454 kg (1000 lb).
•
Vary vehicle speeds during operation. Avoid excessive
idling. Avoid fast starts and quick stops.
•
A break–in oil for the engine is not required. The
original engine oil is the same type specified for regular
oil changes.
•
Refer to Heavy Duty Operation (page 35)
low-hour checks.
28
34).
Figure 34
2. Unlock position
(differential-lock switch)
for any special