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Rubber Track Loader
2. Technical Specifications
PT-60 Specifications
Engine
−
Model: Perkins 404D-22 T
−
Displacement: 2.2 liter
−
Gross horsepower: 60 hp, 44.7 kW
−
Torque: 140 lb-ft.190 Nm
−
Idle rpm: 2800 (high idle); 1175 (low idle)
−
Average water /thermostat temperature:
190°F, 87.8°C
Transmission
− Model: A22VG (38.5cc) tandem (Rexroth)
Drive pumps
− Displacement: 2.349 in
− Relief pressure: 5500 psi, 380 bar
− Flow: 28 gpm (106 lpm) @ 2800 rpm (high
idle)
Charge pump
− Displacement: 1.098 in
− Relief pressure: 400-450 psi ( 2758-3103 kpa)
Drive Motors
− Model: Rexroth MCR 5 (2-speed)
− Displacement: 50 in
Control Handles
− Model: 4TH6 (Rexroth)
Auxiliary Pump
− Make: Haldex-Barnes #180-2061
− Displacement: 1.343 in
− Flow: 17.4 gpm (65.9 lpm) @ 2800 rpm (high
idle)
− Relief pressure: 3000 psi (20,684 kPa)
− Cooling/filtering: Auxiliary oil is filtered and
cooled at all times. In Auxiliary mode, the oil is
filtered after the attachment to protect the ma-
chine if the attachment motor fails or contami-
nants are introduced from the quick couplers.
3
/rev (38.5 cc/rev)
3
/rev (18 cc/rev)
3
/rev (820 cc/rev)
3
/rev (22 cc/rev)
Loader Valve
− Model: Husco
− Relief pressure: 3000 psi (20,684 kPa)
− Pilot pressure required to move spools: 40-
320 psi (275.8-2206 kPa)
Cooler
− Burst pressure: 400 psi (2757 kPa)
− Operating pressure: 250 psi (1724 kPa)
− Bypass relief pressure: 80 psi (689 kPa)
− Hot oil sending unit: 225°F (107.2°C)
Critical Torque Specs
− Transmission Mounting Bolts
85 ft-lb. (230 Nm) w/Blue Loctite
o
− Drive Sprocket Drive Teeth Bolts
105 ft-lb. (142 Nm) -Dry
o
− Wheel Axle Retaining Nut
300 ft-lb. (407 Nm)-Dry
o
− Drive Sprocket Lug Nut
129 ft-lb. (175 Nm)-Dry
o
− Drive Motor Mounting Bolts
177 ft-lbs. (480 Nm) -Dry
o
− Center Idler Wheel Mounting Bolts
105 ft-lbs. (142 Nm) -Dry
o
2-2
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