Brake System; Parking Brake; Steering System; Cab - Volvo L90E Operator's Manual

Presentation

Brake system

The machine is provided
all-hydraulic brake system with one circuit for each
axle. Each circuit meets the requirements for
secondary brake capability. The brakes are cooled
with oil that circulates in the axle.

Parking brake

The parking brake is a wet multi-disc brake built into
the transmission. The brake is applied by spring force
and is released hydrautically.

Steering system

The machine is provided with a load-sensing,
hydrostatic steeringsystem and has a steering arc of
40°.

Cab

The cab has a heating and ventilation system with
defrosting for all windows. Air conditioning is
available as an option. The cab has two emergency
exits, the door and the right side window.
FOPS and ROPS
The cab is approved as a protective cab according to
FOPS and ROPS standards, see page 173. FOPS is
an abbreviation of Falling Object Protective Structure
(roof protection) and ROPS is an abbreviation of Roll
Over Protective Structure (roll over protection).
Never carry out any unauthorised alterations to the
cab, e.g. lowering the roof height, drilling, welding on
brackets for fire extinguisher, radio aerial or other
equipment, without
alteration with personnel at the Volvo Engineering
Department. This department will decide whether the
alteration may cause the approval to become void. It
is important that all parties concerned are ware of
these regulations.
Hydraulic system
The hydraulic system is load-sensing with pumps in
common for the brake and steering systems and the
working hydraulics. However, the brake and steering
systems are prioritised by one of the pumps.
Equipment
The machine can be provided with different types of
optional equipment, depending on the requirements
of different markets.
Examples of such equipment are lever steering
(CDC), Boom Suspension System (BSS), secondary
steering, separate attachment locking, automatic
greasing (standard on certain markets).
with a dual-circuit
first having discussed the
6
‫دﺳﺘﮕﺎه ﺑﻪ ﺳﻴﺴﺘﻢ ﺗﺮﻣﺰ ﺗﻤﺎم ﻫﻴﺪروﻟﻴﻜﻲ دو ﻣﺪاره ﻣﺠﻬﺰ ﻣﻲ ﺑﺎﺷﺪ ﻛﻪ ﺑﻪ‬
‫دو ﺑﺨﺶ ﻣﺠﺰا ﺑﺮاي ﻫﺮ ﻳﻚ از اﻛﺴﻠﻬﺎ ﺗﻘﺴﻴﻢ ﮔﺮدﻳ ـ ـﺪه . ﻫـﺮ ﻳـﻚ از اﻳـﻦ‬
‫ﻣﺪارﻫـﺎ ﺑـﻪ ﻃـﻮر ﺟـﺪاﮔﺎﻧـﻪ داراي ﺗﺠـﻬﻴﺰات ﺛﺎﻧﻮﻳـﻪ ﺑـﺮاي ﺗﺮﻣـﺰ ﮔــﻴﺮي‬
. ‫ﻣﻲ ﺑﺎﺷﻨﺪ . ﺗﺮﻣﺰﻫﺎ ﺑﺎ ﮔﺮدش روﻏﻦ اﻛﺴﻞ ﺧﻨﻚ ﻛﺎري ﻣﻲ ﺷﻮﻧﺪ‬
‫ﺗﺮﻣﺰ ﭘﺎرﻛﻴﻨﮓ از ﻧﻮع ﺗﺮ ﺑﺎ ﭼﻨﺪ دﻳﺴﻚ ﺗﺮﻣﺰ ﺑﻮده ﻛﻪ داﺧﻞ ﮔﻴﺮﺑﻜﺲ ﻣـﻲ‬
‫ﺑﺎﺷﺪ . ﺗﺮﻣﺰ ﺑﻮﺳﻴﻠﻪ ﻧﻴﺮوي ﻓﻨﺮ ﺑﻜﺎر ﻣﻲ اﻓﺘﺪ و آزاد ﺷﺪن آن ﻫﻴﺪروﻟﻴﻜــﻲ‬
‫دﺳﺘﮕﺎه ﺑﻪ ﺳﻴﺴﺘﻢ ﻓﺮﻣﺎن ﻫﻴﺪرو اﺳﺘﺎﺗﻴﻚ داراي ﺣﺲ ﻛﻨﻨﺪه ﺑــﺎر ﻣﺠـﻬﺰ‬
. ‫٠٤ ﻣﻲ ﺑﺎﺷﺪ‬
‫اﺗﺎق راﻧﻨﺪه داراي ﻳﻚ ﺑﺨﺎري و ﺳﻴﺴﺘﻢ ﺗﻬﻮﻳﻪ و ﻫﻤﭽﻨﻴﻦ ذوب ﻛﻨﻨﺪه ﻳﺦ‬
‫)دﻳﻔﺮات( ﺑﺮاي ﺗﻤﺎم ﭘﻨﺠﺮه ﻫﺎ ﻣﻲ ﺑﺎﺷﺪ . ﺗﻬﻮﻳــﻪ ﻣﻄﺒـﻮع ﻧـﻴﺰ ﺑـﻪ ﻋﻨـﻮان‬
‫ﺗﺠﻬﻴﺰات اﺧﺘﻴﺎري ﻗﺎﺑﻞ ﻧﺼﺐ اﺳﺖ . اﺗــﺎق داراي دو ﺧﺮوﺟـﻲ اﺿﻄـﺮاري‬
‫ﺳﺎﺧﺘﺎر اﻳﻤﻨﻲ ﻋﻠﻴﻪ ﺳﻘﻮط اﺟﺴﺎم و واژﮔﻮن ﺷـ ـﺪن‬
‫اﺗﺎق دﺳﺘﮕﺎه ﻣﻄﺎﺑﻖ ﺑﺎ اﺳﺘﺎﻧﺪاردﻫﺎي ﺳﺎزه ﻫﺎي اﻳﻤﻦ ﻋﻠﻴﻪ ﺳﻘﻮط اﺟﺴــﺎم‬
‫ﺑﻌﻨﻮان اﺗﺎﻗﻲ ﻣﺤﺎﻓﻈﺖ ﺷﺪه ﺳﺎﺧﺘﻪ ﺷــﺪه‬
FOPS
‫ﺑﻴـﺎن اﺧﺘﺼـﺎري‬
‫ﺳﺎزه ﻫﺎي ﻣﺤﺎﻓﻆ در ﻣﻘﺎﺑﻞ ﺳﻘﻮط اﺟﺴــﺎم )ﻣﺤـﺎﻓﻈﺖ ﺳـﻘﻒ( و ﻋﺒـﺎرت‬
‫ﺑﻴﺎن اﺧﺘﺼﺎري ﺳﺎزه ﻫﺎي ﻣﺤﺎﻓﻆ در ﻣﻘﺎﺑﻞ واژﮔ ـ ـﻮن ﺷـﺪن ﻣـﻲ‬
‫ﻫﻴﭽﮕﻮﻧﻪ ﺗﻐﻴﻴﺮات ﻏﻴﺮ ﻣﺠﺎز در ﻛﺎﺑﻴﻦ اﻋﻤﺎل ﻧﻜﻨﻴ ـ ـﺪ ﻣـﺎﻧﻨﺪ ﭘـﺎﻳﻴﻦ آوردن‬
‫ارﺗﻔﺎع ﺳﻘﻒ ﻛﺎﺑﻴﻦ ، ﺳﻮراخ ﻛﺎري ، ﺟﻮﺷﻜﺎري ﺑﺮاي ﻧﺼﺐ دﺳﺘﮕﺎه اﻃﻔــﺎء‬
‫ﺣﺮﻳﻖ ، آﻧﺘﻦ ﻫﻮاﻳﻲ رادﻳﻮ و . . ﻫﺮ ﮔﺎه ﺑﻪ ﭼﻨﻴﻦ ﺗﻐﻴﻴﺮاﺗﻲ ﻧﻴﺎز ﺑــﻮد ، ﺑـﺎ‬
‫ﺑﺨﺶ ﻣﻬﻨﺪﺳﻲ وﻟﻮ ﻣﺸﻮرت ﻛﻨﻴﺪ . ﻓﻘﻂ اﻳﻦ ﺑﺨﺶ اﺳ ـ ـﺖ ﻛـﻪ ﻣـﻲ ﺗﻮاﻧـﺪ‬
‫اﺟﺎزه دﻫﺪ اﻳﻦ ﺗﻐﻴﻴﺮات اﻧﺠﺎم ﮔﻴﺮد ﻳﺎ ﻧﻪ . ﻣﺴﺎﻟﻪ ﻣﻬﻢ آﮔﺎه ﺑﻮدن دوﻃ ـ ـﺮف‬
‫ﺳﻴﺴﺘﻢ ﻫﻴﺪروﻟﻴﻚ داراي ﻳﻚ ﺳﻨﺴﻮر ﺣﺲ ﻛﻨﻨﺪه ﺑــﺎر ﻣﺠـﻬﺰ ﺑـﻪ ﭘﻤـﭗ‬
‫ﻫﺎﻳﻲ اﺳﺖ ﻛﻪ ﺑﺎ ﺳﻴﺴﺘﻢ ﻫﺎي ﺗﺮﻣﺰ ﻓﺮﻣﺎن و ﻫﻴﺪروﻟﻴﻚ ﻣﺸﺘﺮك اﻧ ـ ـﺪ . در‬
‫ﺣﺎﻟﻲ ﻛﻪ ﺳﻴﺴﺘﻢ ﻫﺎي ﺗﺮﻣﺰ و ﻓﺮﻣﺎن ﻓﻘﻂ ﺑﻮﺳﻴﻠﻪ ﻳﻜﻲ از ﭘﻤﭗ ﻫﺎ ﺗﻐﺬﻳــﻪ‬
‫ﺑﻨﺎﺑﺮ درﺧﻮاﺳﺖ ﺑﺎزارﻫﺎي ﻣﺨﺘﻠﻒ ، دﺳﺘﮕﺎه را ﻣﻲ ﺗﻮان ﺑﻪ اﻧﻮاع ﮔﻮﻧﺎﮔﻮﻧــﻲ‬
‫از ﺗﺠﻬﻴﺰات ﺳﻔﺎرﺷﻲ ﻣﺠﻬﺰ ﻧﻤﻮد . ﻣﺜﻼ ﺗﺠــﻬﻴﺰاﺗﻲ ﻣـﺎﻧﻨﺪ ﻟﻴـﻮر ﺳﻴﺴـﺘﻢ‬
‫، ﺳﻴﺴﺘﻢ ﻓﺮﻣﺎن ﺛﺎﻧﻮﻳــﻪ ، ﻗﻔـﻞ‬
‫ﺗﺠﻬﻴﺰات ﺟﺪاﮔﺎﻧﻪ و ﺳﻴﺴﺘﻢ ﮔﺮﻳﺴــﻜﺎري اﺗﻮﻣـﺎﺗﻴﻚ )در ﺑﺎزارﻫـﺎي اﺻﻠـﻲ‬
‫ﺑﻌﻨﻮان اﺳﺘﺎﻧﺪارد روي دﺳﺘﮕﺎه ﺗﻌﺒﻴﻪ ﻣﻲ ﺷــﻮد( از ﺟﻤﻠـﻪ اﻳـﻦ ﺗﺠـﻬﻴﺰات‬
‫ﺳﻴﺴﺘﻢ ﺗﺮﻣﺰ‬
‫ﺗﺮﻣﺰ ﭘﺎرﻛﻴﻨﮓ‬
‫ﺳﻴﺴﺘﻢ ﻓﺮﻣﺎن‬
O
C
‫ﺷﺪه و ﻛﻤﺎن ﻓﺮﻣﺎن ﮔﻴﺮي آن‬
‫اﺗﺎق راﻧﻨﺪه‬
. ‫اﺳﺖ ﻛﻪ ﻋﺒﺎرﺗﻨﺪ از : در و ﭘﻨﺠﺮه ﺳﻤﺖ راﺳﺖ‬
ROPS ‫ و‬FOPS
ROPS FOPS
‫و‬
‫اﺳﺖ)ﺑﻪ ﺻﻔﺤﻪ ٣٧١ ﻣﺮاﺟﻌﻪ ﻧﻤﺎﺋﻴﺪ( . ﻋﺒــﺎرت‬
. ‫از وﺟﻮد اﻳﻦ ﻗﻮاﻧﻴﻦ اﺳﺖ‬
‫ﺳﻴﺴﺘﻢ ﻫﻴﺪروﻟﻴﻚ‬
(BSS) (CDC)
‫، ﺳﻴﺴﺘﻢ ﺗﻌﻠﻴﻖ‬
‫ﻣﻌﺮﻓﻲ‬
. ‫اﺳﺖ‬
‫و واژﮔﻮﻧﻲ‬
ROPS
. ‫ﺑﺎﺷﺪ‬
.‫ﻣﻲ ﺷﻮﻧﺪ‬
‫ﺗﺠﻬﻴﺰات‬
‫ﻓﺮﻣﺎن‬
. ‫ﻣﻲ ﺑﺎﺷﺪ‬