freightliner EconicSD - Page 207

Operating data
Compressed-air system
Minimumpressures in kPa
Brakecircuit 1 680
Brakecircuit 2 680
Brakecircuit 3 550
Transmission circuit/clutch
circuit
650
Spring-loaded parking brake
cylinder release pressure
650
Reservoir pressures in kPa
Service brake (EAPU) 1050 -1360
Service brake (APU) 900 -1060
Pneumatic suspension 1050 -1550
External compressed-air
source (EAPU) (chargingthe
compressed-air system)
1100 -1250
External compressed-air
source (APU) (chargingthe
compressed-air system)
950 -1000
Remaining pressure circuits 700 -870
Engine
OM 936 diesel engine:idling
speed
Approx-
imately
600 rpm
Engine brake (operating
range)
Approx-
imately 1000
-3000 rpm
Engine speed range of maxi-
mum torque
Approx-
imately 1200
-1600 rpm
OM 936 diesel engine:
speed at maximum engine
power output
Approx-
imately
2200 rpm
Operating temperature
Normal operation Approx-
imately 176 -
212 ‡
Maximum permissible cool-
ant temperature
Up to 217 ‡
Automatically reduced
enginepower output
From 217 ‡
Tirepressures
Tire pressure table for single
tires
(Y page
196)
Tire pressure table for twin
tires
(Y page
196)
Permissible difference in
pressure between tires on
an axle
20 kPa
(0.2 bar/
3psi)
Maximum permissible air
pressure for inflatingtires
1000 kPa
(10.0 bar/
145 psi)
Wheel nut tightening torques
Light-alloy wheels 445 lb-ft
(600 Nm)
Steel wheels 445 lb-ft
(600 Nm)
Spring-loaded cylinder
Release torque of the spring-
loaded parkingbrake cylin-
der release screw
Maximum
52 lb-ft
Tightening torque of the
spring-loaded parking brake
cylinder release screw
Maximum
26 lb-ft
Release pressure (with
external source of
compressed air)
Minimum
650 kPa
Operating data
205
Technical data
Z