29
Operating Manual Crawler Excavator TC37
Technical Specifications
3
3.5
Hydraulic system
Hydraulic system
Working hydraulics
Single-stage, load-sensing axial piston pump.
Pump capacity:
26.16 gal/min
Pressure:
max. 3,625.00 psi
Excavator equipment Hydraulically pilot-operated control valve for the functions "boom, dipperstick, bucket, slewing";
Proportional control of all functions.
Pilot pressure
28 bar with pressure accumulator
Additional control
circuit
Control circuit for grab, rock breaker, etc.
Capacities available:
11.89 gal/min at 2,755 psi
10.57 gal/min at 3045 psi
Max. pressure 3045 psi
Open return
Hydraulic filter
Full-flow return filter
Hydraulic cylinders
Double-acting work cylinders, part ially with end-position damping.
Swing drive
Hydrostatic, swing motor and drive pinion on internally toothed ring gear of swing bearing.
Swing range:
360° unlimited
Swing speed:
0 – 10.5 rpm
The hydrostatic swing drive acts as a wear-free swing brake.
Additional spring-loaded multi-disk brake serving as parking brake:
- by operating the push-button on the left-hand joystick
- with the diesel engine switched off and ignition OFF
Knickmatik
®:
On the right:
On the left:
swing angle 70°
swing angle 50°
Bend mechanism for the lateral parallel adjustment of the boom axle at total digging depth, left/right
by approx. 25.99/29.14 in.
Dozer blade
Separate control valve, independent from drive, hand lever providing sensitive control.
Blade body width 69.31 in. height 14.18 in.
Lift below road level
11.81 in
Lift above road level
17.72 in
Slope angle
35°
Tab. 6
Technical specifications - Hydraulic system
