DAF 95XF. Manual - part 770
9
SHOCK ABSORBERS
General
1-2
Double acting shock absorbers
The operation of the shock absorber is as
follows:
the bump stroke moves the cylinder (1) down in
relation to the operating cylinder (2).
Subsequently, oil flows from the bottom
chamber of the piston (1) through the piston
holes and valves to the top chamber where the
volume increases. The oil pressure is equal on
either side of the piston (1).
To compensate for the volume taken up by
piston rod (3) in the upper chamber, oil flows
from under piston (1), via the bottom valve (4),
to reservoir tube (5).
The resistance the oil meets during this
movement, damps the bump stroke of the shock
absorber.
The rebound stroke moves the cylinder (1) up in
relation to the operating cylinder (2).
Subsequently, pressure is exerted on the oil in
the upper chamber of the piston (1) causing the
oil to flow to the bottom chamber under
piston (1).
The resistance the oil meets during this
movement, damps the bump stroke of the shock
absorber.
To compensate for the volume taken up by the
piston rod (3) in the upper chamber, oil flows via
bottom valve (4) from the reservoir tube (5) to
the bottom chamber under the piston (1).
3
1
5
2
4
W9 02 001
ǹ 9701
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