Specifications
Printed in U.S.A. 43 50940411/G0219
Cylinders
Forces and Cycle Times
Travel Drive System Hydrostatic Pump
Type Tandem axial piston
Rated Pressure 345 bar (5004 psi) 400 bar (5800 psi)
Displacement (per rev.)
41.0 cm
3
(2.5 in
3
) 49.2 cm
3
(3.0 in
3
)
Pump to Engine Ratio 1 : 1
Charge Pressure 17-24 bar (300-350 psi)
Table 12: Hydraulic System : Pumps
Table 13: Hydraulic System : Cylinders
RT175 RT210 RT250
Tilt Cylinders
Type Double-acting piston
Rod / Bore Diameter 35 mm / 64 mm (1.38 / 2.50 in.) 38 mm / 70 mm (1.50 / 2.75 in.) 38 mm / 76 mm (1.50 / 3.00 in.)
Stroke Length 537 mm (21.14 in.)
Closed Length 731 mm (28.76 in.)
Pressure Rating 207 bar (3000 psi)
Lift Cylinders
Type Double-acting piston
Rod / Bore Diameter 38 mm / 64 mm (1.50 / 2.50 in.) 38 mm / 70 mm (1.50 / 2.75 in.) 44.5 mm / 76 mm (1.75 /3.00 in.)
Stroke Length 766 mm (30.14 in.)
Closed Length 994 mm (39.14 in.)
Pressure Rating 207 bar (3000 psi)
Table 14: Hydraulic System : Forces and Cycle Times
RT175 RT210 RT250
Bucket Breakout
Breakout Force (tilt) 2429 kg (5354 lbs.) 3008 kg (6631 lbs.) 3803 kg (8384 lbs.)
Breakout Force (lift) 2275 kg (5016 lbs.) 2940 kg (6481 lbs.) 3373 kg (7437 lbs.)
Hydraulic Function Time
SAE Raising Time - Lift 4.5 seconds 4.6 seconds 4.6 seconds
SAE Lowering Time - Lift 3.0 seconds. 3.2 seconds 3.1 seconds
SAE Dump Time - Tilt 1.0 secs.
Dump Time - Tilt (stop to stop) 3.2 seconds 3.3 seconds 3.4 seconds
SAE Rollback Time - Tilt 0.6 seconds 0.7 seconds
Rollback Time - Tilt (stop to stop) 2.1 seconds 2.4 seconds 2.5 seconds