Section 000-0000 General Information - TR60 Off Highway Truck DRIVE AXLE Heavy duty axle with single reduction spiral bevel gear differential, full floating axle shafts, and planetary reduction at each wheel. Parking Application of rear brakes by springs in brake disc pack. Hydraulically released. Hold-off Pressure ..................................83 bar (1 200 lbf/inІ) Ratios: Differential ................................................................... 3.73:1 Planetary ..................................................................... 5.80:1 Total Reduction ......................................................... 21.63:1 Retardation Modulated lever control of rear disc pack.
510 kW (685 hp) continuous. Retarder Actuation Pressure ......... up to 33 bar (480 lbf/inІ) SUSPENSION Front: King pin strut type independent front wheel suspension by self-contained, variable rate, nitrogen/oil cylinders. Emergency Push button solenoid control applies service and parking brakes. Automatically applies when engine is switched off. Parking brake applies should system pressure fall below a predetermined level. Rear: Variable rate nitrogen/oil cylinders with A-frame linkage and lateral stabilizer bar. Brakes conform to ISO 3450, SAE J1473 OCT 90. Maximum Strut Stroke Front .........................................................
251 mm (9.9 in) Rear .......................................................... 182 mm (7.2 in) Maximum Rear Axle Oscillation ..................... ± 6.5 Degrees STEERING SYSTEM Independent hydrostatic steering with closed-centre steering valve, accumulator and pressure compensating piston pump. WHEELS AND TYRES Wheel Rim Width .......................................................... 17 in Standard Tyres (Front & Rear) ..............24.00 R 35** Radial Accumulator provides uniform steering regardless of engine speed. In the event of loss of engine power it provides steering of approximately two lock-to-lock turns.
A low pressure indicator light warns of system pressure below 83 bar (1 200 lbf/inІ). Steering meets SAE J53. Note: It is recommended that for tyres both listed and unlisted, the user should consult the tyre manufacturer and evaluate all job conditions in order to make the proper selection. System Pressure................................ 159 bar (2 300 lbf/inІ) Relief Pressure ................................... 207 bar (3 000 lbf/inІ) Steering Cylinders ................... Double Acting, Single Stage Accumulator: Oil Capacity .................................
14.0 litres (3.70 US gal) Nitrogen Precharge Pressure ...............55 bar (800 lbf/inІ) Steering Angle (Left and Right) ....................................... 39° Pump: Type......................................................................... Piston Capacity at 2 100 rev/min....... 1.4 litres/s (22 US gal/min) BRAKES Service All hydraulic brake system. Transmission mounted pressure compensating pump provides hydraulic pressure for brakes and steering. Independent circuits front and rear. Each circuit incorporates a nitrogen accumulator which stores energy to provide consistent braking response. BODY HYDRAULICS Two body hoist cylinders are mounted between the frame rails.
Cylinders are two-stage with power down in the second stage. Front Brake Circuit Pressure ............. 159 bar (2 300 lbf/inІ) Rear Brake Circuit Pressure ....................52 bar (750 lbf/inІ) Accumulators: Nitrogen Precharge Pressure ...............55 bar (800 lbf/inІ) Front: Type .............................. Dry Disc with 1 calliper per wheel Disc Diameter ............................................ 710 mm (28 in) Pad Area, Total.................................... 1 395 cmІ (216 inІ) System Relief Pressure ..................... 190 bar (2 750 lbf/inІ) Pump: Type...........................................................................
Gear Capacity at 2 100 rev/min.............................227 litres/min (60 US gal/min) Control Valve ...................... Servo Controlled, Open Centre Body Raise Time................................................ 16 Seconds Body Lower Time ............................................... 14 Seconds Rear: Type ...............................Oil cooled, multiple friction discs, completely sealed from dirt and water. Braking Surface, Total ....................47 151 cmІ (7 308 inІ) ELECTRICAL Type ............................................. 24 Volt, Negative Ground Battery.........
Two, 12 Volt, 165 Ah each, Maintenance Free Accessories................................................................ 24 Volt Alternator .................................................................. 70 Amp Starter ........................................................................ 8.9 kW SM 1566 12-98 2