SECTION 5 - HYDRAULICS
3121774
5-13
This second speed system is also controlled by an
auto2speed valve, in case of a higher torque is required to
the drive gear motors, such as driving uphill, the second
speed line pressure will raise and if it overcomes the cali-
brated maximum pressure (30 bar) it will automatically
open the auto2speed valve reducing the gear rate and the
tracks speed.
Auto2speed allows to manage automatically the available
power, providing on demand a higher torque (with a
slower speed) or faster speed (with a lower torque).
Second speed activation oil, coming from second speed
valve coil, is sent to both drive gear motors through the
second speed manifold, that is installed on the undercar-
riage base.
Figure 5-15. Drive Gear Motors
SMALLER CHAMBER:
•
FASTER SPEED
•
SMALLER TORQUE
BIGGER CHAMBER:
•
SLOWER SPEED
•
HIGHER TORQUE
Figure 5-16. Second Speed Manifold
Go
to
Discount-Equipment.com
to
order
your
parts
