B
B
oom Suspension System (BSS)
Boom Suspension System (BSS)
(Suspension of digging equipment / optiona
a
l
equipment)
The boom suspension system absorbs shocks when travelling
across uneven ground. This increases the operator comfort and
the stability of the machine.
En
n
g
g
a
a
g
g
i
i
n
n
g
g
th
h
e
e
bo
o
o
o
m
m
sus
s
pe
e
n
n
s
s
io
o
n
n
syste
e
m
m
Press the upper end of the BSS switch down to engage the
system.
The BSS symbol appears in the display.
- BSS symbol yellow: BSS preparation
- BSS symbol green: BSS is active
NOT
T
E
E
!
!
The boom can move slightly up or down when engaging the
system.
The BSS activating speed value in W- and C- mode is by default
5 km/h (3,11 mph), below that speed the system is deactivated.
In T-mode the activation is not speed related.
Wh
h
en sel
l
e
e
cti
i
n
n
g
g
T-
-
mod
d
e an
n
d th
h
e sup
p
erstr
r
uctu
u
r
r
e is al
l
ig
g
ne
e
d
d
wi
i
th
h
th
h
e
e
un
n
d
d
er
r
carria
a
ge
e
, th
h
e
e
bo
o
om
m
suspen
n
s
s
io
o
n
n
syste
e
m
m
will sta
a
y
y
ac
c
ti
i
v
v
e al
l
l
th
h
e
e
ti
i
m
m
e.
NOT
T
E
E
!
!
The activation speed for W- and C-mode is adjustable by a
parameter, this can only be done by a service technician.
Tra
a
v
v
el
l
po
o
s
s
it
t
i
i
o
o
n
n
wi
i
t
t
h
h
BS
S
S
S
A maximum machine height of 4 m (13 ft 1,5 in) must not be
exceeded when travelling on public roads.
The travel position with the boom suspension varies from the
normal travel position: The boom cylinder must not be fully
extended, it should remain slightly below the end stop position.
NOT
T
E
E
!
!
With the boom suspension system the attachment can swing up
or down. The operator must take care for the maximum machine
height.
V1158560
1
1
Boom suspension accumulators on two-
piece boom
V1091822
BSS switch
BSS symbol in the display
V1128262
A
Travel position with BSS (two-piece boom)
A Maximum machine height of 4 m (13 ft 1,5 in)
Op
p
e
e
r
r
a
a
t
t
i
i
n
n
g
g
te
e
c
c
hn
n
i
i
q
q
u
u
e
e
s
s
Bo
o
o
o
m
m
Su
u
s
s
pe
e
n
n
s
s
io
o
n
n
Sy
y
ste
e
m
m
(B
B
S
S
S
S
)
)
19
9
7
7
Summary of Contents for 322001
Page 7: ...5 5 ...
Page 146: ...Right mirrors 1 14 44 4 Op pe er ra at ti in ng g in ns str ru uc cti io on ns s ...
Page 172: ...1 170 Operating instructions Exhaust aftertreatment system ...
Page 357: ...S Specifications Dimensions 355 ...
Page 410: ......
Page 413: ......
Page 414: ...4 412 Alphabetical index Ref No 20052711 C Volvo Eskilstuna English ...