Komatsu 830E-AC Shop Manual page 641

HYDRAULIC SYSTEM OPERATION
The following describes the basic hydraulic system
operation. Further system description is outlined
under different system circuits such as the hoist cir-
cuit and steering circuit in this section of the manual.
Refer to Section J for details regarding the hydraulic
brake system.
The hoist, steering and brake circuits share a com-
mon hydraulic tank (1, Figure 2-1). The tank is
located on the left frame rail forward of the rear
wheels.
FIGURE 2-1. HYDRAULIC PUMPS AND TANK (VIEWED FROM BELOW TRUCK)
1. Hydraulic Tank
2. Hoist Cylinder
L02043
HYDRAULIC SYSTEM
The service capacity of the tank is 901 l (238 gal.).
Type C-4 hydraulic oil is recommended for use in the
hydraulic system.
NOTE: It is recommended that any hydraulic oil
to be used for filling or adding to the hydraulic
system is routed through a 3 micron filter device
prior to use.
3. Steering / Brake Pump
4. Hoist Circuit Filters
Hydraulic System
5. Hoist Circuit Hydraulic
Pump
L2-3