Volvo VHD - Manual (Page 234)

228 Brakes
4 In making a stop or a slow-down, al-
low the transmission to remain in gear
with the throttle closed, disengaging
the clutch only when engine idling
speed is reached.
5 When parking the vehicle, place the
transmission in neutral and set the
parking brake before shutting down
the engine.
6 When descending a long grade, do not
use the service brakes too long or too
often. The brakes may overheat and
lose their effectiveness.
7 Before descending a steep grade, the
transmission should be shifted into a
lower gear and the vehicle speed re-
duced. Other speed retardation devices
should also be used if available (en-
gine brakes, retarders or trailer hand
control valves).