IV.
OPERATING SYSTEMS
35
OPERATING SYSTEMS
B. HYDROSTATIC DRIVE SYSTEM
A. Cummins Engine
B. Tandem Hydrostatic Pumps
C. Front and Rear Wheel Motors
D. Wheel Hubs
FIG. 4.35-4
FIG. 4.35-2
FIG. 4.35-3
CUMMINS ENGINE AND TANDEM PUMP–
The GST20
comes standard with a 275hp Cummins diesel engine (fig. 4.B1-1). The
engine has a direct-mounted Sauer-Danfoss 90 Series tandem hydro-
static pump (fig. 4.35-2). More information on the operation of the en-
gine is on the next page. The engine is equipped with an automatic ex-
haust brake.
WHEEL MOTORS AND WHEEL HUBS-
The GST 20’s all-time
four wheel drive system consists of the Sauer-Danfoss hydrostatic
wheel motors (fig. 4.35-3) and the planetary gear reduction hubs (wheel
hubs) (fig. 4.35-4).
B
D
C
FIG. 4.1B-1
A
