Issue 9 February 2006
12
2.3.3 Braking
Releasing the accelerator pedal will cause the machine to slow down by automatically applying hydraulic
braking.
The brake pedal operates on the rear brakes.
The handbrake also operates on the rear brakes, and should always be applied when leaving the cab. A
buzzer sounds if Forward or Reverse is selected with the handbrake applied to remind you to release it.
2.3.4 Wheel Tracking
525 is equipped with a variable track width front axle. This enables the machine to operate in narrow
passageways (1.1m machine width) during the low speed (15 kph max.) Sweep (Work) mode.
In high speed (32 kph max.) Transit mode, the front wheel track width is increased to 1.33m over wheels. This
increases machine stability at high speed.
“Tracking” (changing the front wheel track width) is automatically controlled by the MDM electronic control
system.
a. TRACKING-OUT – Changing from WORK to TRANSIT
Reduce machine speed to 5 kph (3.1 mph) (walking speed) and select Transit. When Transit is selected,
Tracking-out does not start until the accelerator pedal is depressed when the machine is in Forward and a
speed of, at least, 4.5 kph (2.8 mph) is reached.
The MDM then limits the maximum speed to 5 kph (3.1 mph) until tracking-out is complete (about 10
sec.). A speed of 32 kph (20 mph) is then permitted. During tracking the following message will appear on
the MDM display “CAUTION – SPEED RESTRICTION – WHEEL TRACKING OPERATING”.
b. TRACKING-IN – Changing from TRANSIT to WORK
Reduce the vehicle speed to 5 kph (3.1 mph) and select Work. Tracking-in does not start until a speed of
at least 2.5 kph (1.6 mph) is achieved. The MDM will then control the speed to a maximum of 3 kph until
Tracking-in is complete. Speeds of up to 15 kph are then permitted. Again, during Tracking-in the MDM
display will show the tracking message.
