6 . SPECIFICATIONS
6.5
Challenger MT500B EU
6
6.1 - ENGINE
6.1.1 - Fuel system and air filter
Specifications MT525B MT535B MT545B MT555B MT565B MT575B
Engine CAT 3056 CAT 3056 CAT 3056 66ETA 66ETA 66ETA
Number of cylinders 6 6 6 6 6 6
Turbocharger yes yes yes yes yes yes
Bore (mm) 100 100 100 108 108 108
Stroke (mm) 127 127 127 120 120 120
Cubic capacity (l) 6 6 6 6.6 6.6 6.6
Nominal power (ISO Kw) 87 98.5 106 113 125 137
At engine speed in rpm 2200 2200 2200 2200 2200 2200
Nominal power (ISO Kw)
At engine speed in rpm
94
2200
106
2200
114
2200
120
2200
132.5
2200
143
2200
Maximum torque (ISO Nm)
Engine speed at maximum torque
500
1400
565
1400
590
1400
650
1400
720
1400
780
1400
Idle speed
Maximum rated speed (rpm)
(Idle speed high)
950
2354
950
2354
950
2354
950
2354
950
2354
950
2354
Lubrication Gear type pump - strainer on suction side and external replaceable cartridge type filter(s).
Valves Overhead, push-rod operated
Valves clearance (Cold)
Inlet (mm)
Exhaust (mm)
0.20
0.45
0.20
0.45
0.20
0.45
0.35
0.35
0.35
0.35
0.35
0.35
Engine oil cooler yes yes yes yes yes yes
MT525B / MT535B / MT545B MT525B / MT535B / MT545B
Fuel filter with sediment bowl yes
Number of elements 1
Injection pump Bosh VP30
Injectors and nozzle holders Bosh
Cold weather starting Thermostart Grid heater
Air cleaner: two-stage, dry element with clogging indicator.