Mercedes-Benz Actros, Operating Instructions Manual, Page: 371 / 418

Positioning on the rear axle(s)
Axles 1 2
4x2 x -
4x4 x -
6x2 x x
6x2/2 - x
6x2/4 - x
6x4 x x
6x6 x x
8x4 ENA x x
8x4/4 x x
8x6/4 x x
8x8/4 x x
Manually releasing and moving the spring-loa‐
ded brake cylinder to the drive position
* NOTE Damage to the spring-loaded brake
cylinder
Unscrew the release screw of the spring-loa‐
ded brake cylinder with max. 70 Nm.
Tighten the release screw of the spring-loa‐
ded brake cylinder with max. 35 Nm.
The spring-loaded brake cylinder may other‐
wise be damaged.
#
Do not use an impact wrench to
unscrew and tighten the screw.
Manually releasing the spring-loaded brake
cylinder
Spring-loaded brake cylinder with release screw
Spring-loaded brake cylinder with release screw
and release indicator
1
Spring-loaded brake cylinder
2
Release screw
3
Drive position
4
Released position
If there is insufficient reservoir pressure to
release the parking brake, release the spring-loa‐
ded brake cylinders manually in the event of an
emergency.
The vehicles may be fitted with different types of
spring-loaded brake cylinders depending on the
axle, e.g. spring-loaded brake cylinders with a
release screw or with a release indicator. Release
all spring-loaded brake cylinders on the vehicle.
#
Use chocks to safeguard the vehicle against
rolling away.
#
Turn release screw 2 of spring-loaded brake
cylinder 1 anti-clockwise until the stop in
release position
4
.
Moving the spring-loaded brake cylinder to
the drive position
Reset all spring-loaded brake cylinders to the
drive position.
#
Charge the brake circuit until the shutoff
pressure is reached.
#
Release the parking brake manually
(
/
page 369).
#
Turn release screw 2 of spring-loaded brake
cylinder 1 clockwise to drive position
3
.
#
Tighten release screw 2 .
Breakdown assistance 369