Model 2120 Tractor TM-4252 (Dec-70) General Information 10 Specifications 5-3 System pressure ........ 2220 to 2280 psi (156 to 160 kg/cm ' Pump ............ 4 or 8-piston pump driven by the engine TRANSMISSION HYDRAULIC SYSTEM Collar shift transmission with helical cut gears. Closed center, constant pressure system; also includes rockshaft, power steering and selective control valves. This transmission is available in three variations: 8 speed transmission with parking lock, without independent hand brake; 8 speed transmission without parking lock and with independent hand brake; 8 speed transmission without parking lock, with blocked 8th gear and independent hand brake.
With this transmission 8 or 7 forward and 4 reverse speeds are available. POWER STEERING The steering system is a "closed center" type incorporated by the hydraulic system and supplied with oil by the main hydraulic pump. It is connected to the front wheels by means of a steering linkage. MANUAL STEERING HIGH-LOW SHIFT UNIT Hydraulically controlled reduction gear which can be shifted under load, with "wet" multiple disk clutch and "wet" multiple disk brake. Allows reduction of the individual gear speeds by 26%. The manual steering is a recirculating ball bearing, worm and nut type.
A number of steel balls between ball nut and steering wheel shaft provide for positive engagement of steering wheel and steering linkage. DIFFERENTIAL AND FINAL DRIVES Planetary reduction gear and differential with spiral bevel gears. HYDRAULIC BRAKES DIFFERENTIAL LOCK The disk brakes run in an oil bath and are hydraulically controlled. Hand or foot operated; spring-loaded out of engagement. HANDBRAKE Band-type locking brake acting on differential. POWER SHAFTS CAPACITIES Imp, us Liters Gals. Gals. Fuel tank .
16.25 19.5 73.8 Cooling system 2.5 3.0 11.4 Continuous Running Power Shafts The power shafts are independent of the transmission if the tractor is equipped with a dual stage engine clutch. Engine crankcase incl. filter 1.25 1.5 5.7 Independent Power Shafts Independent of transmission, can be engaged and disengaged under load. Transmission-hydraulic system Dry system 7.9 9.5 36.0 At service intervals . . 6.5 7.4 28.0 The independent power shaft is engaged by a hydraulically operated disc clutch. Disengaging the clutch is achieved by operating the hydraulically actuated band type brake. Oil-bath air cleaner . . . я 0.22 0.26 1.0 Belt pulley .
0.25 0.30 1.1 Power Shaft Speeds (in rpm) TRAVEL SPEEDS See Operator's Manual Engine Speed 540 rpm 1000 rpm in rpm shaft shaft 650 169 315 2067 538 1000 2075 540 1004 2500 650 1210 2650 689 1283 For tire sizes, treads, inflation pressure and weights see Operator's Manual. FRONT AND REAR WHEELS DIMENSIONS AND WEIGHTS See Operator's Manual. Printed in Germany