Nilfisk-Advance RS 501 User manual

RS 501
ENGLISH SERVICE MANUAL
33015499(3)2008-02

SERVICE MANUAL ENGLISH
RS 501 33015500(3)2008-02 1
TABLE OF CONTENTS
GENERAL INFORMATION .............................................................................................................................................. 3
MACHINE LIFTING ......................................................................................................................................................................... 3
MACHINE TRANSPORT ................................................................................................................................................................. 3
PUSHING OR TOWING THE MACHINE......................................................................................................................................... 3
OTHER AVAILABLE MANUALS ...................................................................................................................................................... 3
SAFETY........................................................................................................................................................................................... 3
GENERAL SAFETY INSTRUCTIONS............................................................................................................................................. 4
TECHNICAL DATA........................................................................................................................................................................... 6
ENVIRONMENTAL CONDITIONS................................................................................................................................................... 8
MAINTENANCE............................................................................................................................................................................... 9
SCHEDULED MAINTENANCE TABLE ........................................................................................................................................... 9
MACHINE NOMENCLATURE ........................................................................................................................................................11
SWEEPING SYSTEM .................................................................................................................................................... 17
DESCRIPTION .............................................................................................................................................................................. 17
TROUBLESHOOTING................................................................................................................................................................... 18
SIDE BROOM POSITION CHECK AND ADJUSTMENT............................................................................................................... 19
BROOM REPLACEMENT ............................................................................................................................................................. 21
BROOM SPEED ADJUSTMENT ................................................................................................................................................... 22
DUST AND DEBRIS COLLECTION SYSTEM .............................................................................................................. 23
DESCRIPTION .............................................................................................................................................................................. 23
TROUBLESHOOTING................................................................................................................................................................... 25
HOPPER, FILTER AND SUCTION HOSE CLEANING, AND GASKET CHECK........................................................................... 26
SUCTION INLET AND SKIRT HEIGHT AND OPERATION CHECK ............................................................................................. 29
SUCTION INLET WHEEL DISASSEMBLY/ASSEMBLY................................................................................................................ 31
SUCTION INLET SLIDING PANELS DISASSEMBLY/ASSEMBLY............................................................................................... 32
SUCTION INLET DISASSEMBLY/ASSEMBLY ............................................................................................................................. 33
SKIRT REPLACEMENT ................................................................................................................................................................ 34
HOPPER POSITION ADJUSTMENT............................................................................................................................................. 35
HOPPER LID CLOSING ACTUATOR ADJUSTMENT................................................................................................................... 37
MOTOR AND SUCTION FAN DISASSEMBLY/ASSEMBLY.......................................................................................................... 39
SUCTION HOSE DISASSEMBLY/ASSEMBLY ............................................................................................................................. 41
DUST CONTROL SYSTEM ........................................................................................................................................... 43
DESCRIPTION .............................................................................................................................................................................. 43
TROUBLESHOOTING................................................................................................................................................................... 44
NOZZLE AND FILTER CLEANING................................................................................................................................................ 45
WATER FILTER CLEANING.......................................................................................................................................................... 47
WATER TANK EMPTYING ............................................................................................................................................................ 48
STEERING SYSTEM ..................................................................................................................................................... 49
DESCRIPTION .............................................................................................................................................................................. 49
TROUBLESHOOTING................................................................................................................................................................... 50
REAR AXLE TOE-IN ADJUSTMENT............................................................................................................................................. 51
BRAKE SYSTEM ........................................................................................................................................................... 53
DESCRIPTION .............................................................................................................................................................................. 53
TROUBLESHOOTING................................................................................................................................................................... 54
BRAKE FLUID LEVEL CHECK...................................................................................................................................................... 55
PARKING BRAKE CHECK AND ADJUSTMENT........................................................................................................................... 56
PARKING BRAKE CONTROL CABLE REPLACEMENT............................................................................................................... 57
BRAKE SYSTEM CHECK ............................................................................................................................................................. 59
BRAKING MASSES REPLACEMENT........................................................................................................................................... 60
BRAKE SYSTEM BLEEDING........................................................................................................................................................ 61
DRIVE SYSTEM............................................................................................................................................................. 63
DESCRIPTION .............................................................................................................................................................................. 63
TROUBLESHOOTING................................................................................................................................................................... 64
TIRE PRESSURE CHECK ............................................................................................................................................................ 65
REVERSE GEAR BUZZER CHECK AND REVERSE GEAR BUZZER ACTIVATION SENSOR ADJUSTMENT ......................... 66
REVERSE GEAR BUZZER SENSOR DISASSEMBLY/ASSEMBLY............................................................................................. 67
WHEEL REMOVAL/INSTALLATION.............................................................................................................................................. 68
DRIVE SYSTEM MOTOR DISASSEMBLY/ASSEMBLY................................................................................................................ 69
DRIVE PEDAL CHECK AND ADJUSTMENT ................................................................................................................................ 70

ENGLISH SERVICE MANUAL
233015500(3)2008-02 RS 501
LDW 1603/B2 ENGINE.................................................................................................................................................. 73
DESCRIPTION .............................................................................................................................................................................. 73
TROUBLESHOOTING................................................................................................................................................................... 74
ENGINE OIL LEVEL CHECK......................................................................................................................................................... 75
ENGINE OIL CHANGE .................................................................................................................................................................. 76
ENGINE OIL FILTER CHANGE..................................................................................................................................................... 77
ENGINE COOLANT LEVEL CHECK ............................................................................................................................................. 78
ENGINE AIR FILTER CLEANING.................................................................................................................................................. 79
FUEL FILTER REPLACEMENT..................................................................................................................................................... 80
FUEL FITTING AND SCREW CHECK .......................................................................................................................................... 81
ALTERNATOR BELT TENSION CHECK....................................................................................................................................... 82
ALTERNATOR BELT REPLACEMENT.......................................................................................................................................... 83
RADIATOR FIN CLEANING CHECK............................................................................................................................................. 84
ENGINE COOLANT LINE SLEEVE CHECK ................................................................................................................................. 85
ENGINE COOLANT CHANGE ...................................................................................................................................................... 86
INJECTOR CALIBRATION AND CLEANING ................................................................................................................................ 87
CLIMATE CONTROL SYSTEM ..................................................................................................................................... 89
DESCRIPTION .............................................................................................................................................................................. 89
TROUBLESHOOTING................................................................................................................................................................... 90
COMPRESSOR BELT TENSION CHECK (LDW 1603/B2 engine)............................................................................................... 91
COMPRESSOR BELT REPLACEMENT (LDW 1603/B2 engine).................................................................................................. 92
AIR FILTER REPLACEMENT........................................................................................................................................................ 93
OTHER SYSTEMS......................................................................................................................................................... 95
NUT AND SCREW TIGHTENING AND LEAKAGE CHECK.......................................................................................................... 95
LUBRICATION............................................................................................................................................................................... 96
CHECK AND ADJUSTMENT OF SENSOR FOR ENGINE START-UP INHIBITION WHEN
THE DRIVE PEDAL IS PRESSED ................................................................................................................................................ 97
DISASSEMBLY/ASSEMBLY OF SENSOR FOR ENGINE START-UP INHIBITION WHEN
THE DRIVE PEDAL IS PRESSED ................................................................................................................................................ 98
HYDRAULIC SYSTEM................................................................................................................................................... 99
DESCRIPTION .............................................................................................................................................................................. 99
COMPONENT LOCATION ............................................................................................................................................................ 99
HYDRAULIC DIAGRAM .............................................................................................................................................................. 101
TROUBLESHOOTING................................................................................................................................................................. 103
HYDRAULIC SYSTEM OIL LEVEL AND DRAIN FILTER EFFICIENCY CHECK........................................................................ 104
HYDRAULIC SYSTEM OIL CHANGE ......................................................................................................................................... 105
HYDRAULIC SYSTEM OIL SUCTION FILTER REPLACEMENT ............................................................................................... 107
HYDRAULIC SYSTEM OIL DRAIN FILTER REPLACEMENT .................................................................................................... 108
DRIVE SYSTEM PUMP OIL FILTER REPLACEMENT............................................................................................................... 109
HYDRAULIC SYSTEM OIL COOLER FIN CLEANING CHECK...................................................................................................110
REAR WHEEL CONTROL HYDRAULIC CYLINDER DISASSEMBLY/ASSEMBLY.....................................................................111
HYDRAULIC CYLINDERS DISASSEMBLY/ASSEMBLY ............................................................................................................112
SUCTION FAN CONTROL VALVE ASSEMBLY REMOVAL/INSTALLATION...............................................................................114
ACCESSORY SYSTEM CONTROL VALVE ASSEMBLY REMOVAL/INSTALLATION.................................................................115
ACCESSORY AND STEERING SYSTEM PUMP DISASSEMBLY/ASSEMBLY (LDW 1603/B2 engine).....................................116
SUCTION FAN PUMP DISASSEMBLY/ASSEMBLY .................................................................................................................. 120
DRIVE SYSTEM PUMP DISASSEMBLY/ASSEMBLY................................................................................................................. 121
HYDRAULIC SYSTEM OIL PRESSURE CHECK AT THE SUCTION FAN PUMP ..................................................................... 122
HYDRAULIC SYSTEM OIL PRESSURE CHECK AT THE ACCESSORY AND STEERING SYSTEM PUMP............................ 124
HYDRAULIC SYSTEM OIL PRESSURE CHECK ON DRIVE SYSTEM PUMP.......................................................................... 126
ELECTRICAL SYSTEM ............................................................................................................................................... 129
DESCRIPTION ............................................................................................................................................................................ 129
COMPONENT LOCATION .......................................................................................................................................................... 129
WIRING DIAGRAM...................................................................................................................................................................... 133
TROUBLESHOOTING................................................................................................................................................................. 137
BATTERY FLUID LEVEL CHECK................................................................................................................................................ 138
FUSE REPLACEMENT ............................................................................................................................................................... 139
RELAY REPLACEMENT ............................................................................................................................................................. 140
CONTROL PANEL DISPLAY REPLACEMENT ........................................................................................................................... 141
LOW BEAM AND HIGH BEAM ADJUSTMENT AND BULB REPLACEMENT ............................................................................ 142

SERVICE MANUAL ENGLISH
RS 501 33015500(3)2008-02 3
GENERAL INFORMATION
GENERAL INFORMATION
NOTE
Forward, backward, front, rear, left or right are intended with reference to the operator’s position, while on the driver’s
seat.
MACHINE LIFTING
WARNING!
Do not work under the lifted machine without supporting it with safety stands.
MACHINE TRANSPORT
(See User Manual)
WARNING!
Before transporting the machine, make sure that:
All lids and covers are closed.
All moving parts are stopped.
The ignition key is removed.
The machine is securely fastened to the means of transport.
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PUSHING OR TOWING THE MACHINE
WARNING!
When pushing or towing the machine, carefully follow the relevant instructions given in the User Manual. Failure
to follow these instructions may cause damage to the machine.
OTHER AVAILABLE MANUALS
The following Manuals are available at Nilfisk Literature Service Department:
RS 501 Spare Parts List – Nilfisk Form Number 33015502
RS 501 User Manual – Nilfisk Form Number 33015501
SAFETY
The following symbols indicate potentially dangerous situations. Always read this information carefully and take all necessary
precautions to safeguard people and property.
DANGER!
It indicates a dangerous situation with risk of death for the operator.
WARNING!
It indicates a potential risk of injury for people or damage to objects.
CAUTION!
It indicates a caution related to important or useful functions.
Pay careful attention to the paragraphs marked by this symbol.
NOTE
It indicates a remark related to important or useful functions.
CONSULTATION
It indicates that it is necessary to consult the User Manual before performing any procedure.
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ENGLISH SERVICE MANUAL
433015500(3)2008-02 RS 501
GENERAL INFORMATION
GENERAL SAFETY INSTRUCTIONS
Specific warnings and cautions to inform about potential damages to people and machine are shown below.
DANGER!
This machine must be used by properly trained and authorised personnel only.
Moreover, the operator must:
Be of full age
Have a driving license
Be in normal psycho-physical conditions
Not be under the effect of substances that alters the nervous system (alcohol, psycopharmaceuticals,
drugs, etc.)
Before performing any maintenance/repair procedure remove the ignition key, engage the parking brake
and disconnect the battery.
Do not wear jewels when working near electrical components.
Do not work under the lifted machine without supporting it with safety stands.
When working under open hoods/lids, make sure that they cannot be closed by accident.
When performing maintenance procedures with the lifted hopper, apply the relevant support rods.
Do not operate the machine near toxic, dangerous, flammable and/or explosive powders, liquids or vapors.
Be careful, fuel is highly flammable.
Do not smoke or bring naked flames in the area where the machine is refuelled or where the fuel is stored.
Refuel outdoors or in a well-ventilated area, with the engine off.
Do not fill the fuel tank to the top, but leave at least 4 cm from the filler neck to allow the fuel to expand.
After refuelling, check that the filler cap is tightly closed.
If any fuel is spilled while refuelling, clean up the affected area and allow the vapors to dissipate before
starting the engine.
Avoid contact with skin and do not breathe in fuel vapors. Keep out of reach of children.
Do not tilt the engine too much to avoid fuel spillage.
During machine transportation, the fuel tank must not be full.
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WARNING!
Carbon monoxide (CO) can cause brain damage or death.
The internal combustion engine of this machine can emit carbon monoxide.
Do not inhale exhaust gas fumes.
Only use indoors when adequate ventilation is provided, and when an assistant has been instructed to look
after you.
Do not lay any object on the engine.
Before working on the engine turn it off. To prevent the engine from starting accidentally, disconnect the
battery negative terminal.
See also the SAFETY RULES in the Diesel Engine Manual, which is to be considered an integral part of this
Manual.
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SERVICE MANUAL ENGLISH
RS 501 33015500(3)2008-02 5
GENERAL INFORMATION
WARNING!
Carefully read all the instructions before performing any maintenance/repair procedure.
Take all necessary precautions to prevent hair, jewels and loose clothes from being caught by the machine
moving parts.
Protect body parts (eyes, hair, hands, etc.) properly, when performing cleaning procedures using
compressed air or water gun.
Avoid contact with battery acid, do not touch hot parts.
Do not leave the machine unattended with the ignition key inserted and the parking brake deactivated.
Do not remove or modify the plates affixed to the machine.
To drive on public roads, the machine must follow local licensing requirements.
The machine has been designed to be used as a sweeper, do not use it for different purposes.
In case of part replacement, order ORIGINAL spare parts from an authorised Dealer or Retailer.
The machine must be disposed of properly, because of the presence of toxic-harmful materials (batteries,
etc.), which are subject to standards that require disposal in special centres (see the Scrapping chapter).
While the engine is running the silencer heats up. Do not touch the silencer to avoid serious scalding or
fire.
Do not run the engine if the oil level is low, to avoid damaging it seriously. Check the oil level with the
engine off and the machine on a level surface.
Do not run the engine if the air filter is not installed, to avoid damaging it.
The coolant line is pressurised; do not perform any check until the engine has cooled down and, even if the
engine is cold, the tank plug must be opened with extreme care.
Only use original spare parts or parts of matching quality for the diesel engine. Using spare parts of lower
quality can seriously damage the engine.
See also the SAFETY RULES in the Diesel Engine Manual, which is to be considered an integral part of this
Manual.
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ENGLISH SERVICE MANUAL
633015500(3)2008-02 RS 501
GENERAL INFORMATION
TECHNICAL DATA
Dimensions and weights Values
Machine length (broom bristles not included) 3,065 mm
Machine width (broom bristles not included) 1,315 mm
Distance between front and rear wheels 1,475 mm
Front wheel base 930 mm
Rear wheel base 840 mm
Machine height 1,997 mm
Minimum distance from the ground (skirts not included) 90 mm
Maximum front working angle 18°
Maximum dumping height 1,460 mm
Front tires R165/70 R14C 89R
Rear tires R165/70 R14C 89R
Tire pressure 3.75 Bar
Standard side broom diameter 720 mm
Optional side broom diameter 650 mm
Total machine weight, in running condition (without operator) 1,500 Kg
Performance data Values
Maximum forward speed (for transport only) 20 km/h
Maximum working speed 12 km/h
Maximum reverse speed 8 km/h
Gradeability at full load 22% (30% optional)
Minimum inner turning radius 2.46 m
Maximum side broom speed 80 rpm
Collection system Suction
Cleaning width 1,600 mm
Filtering system Metallic net
Sound pressure level at workstation (ISO/EN 3744) at maximum working speed 82 dB(A)
Certified sound power (2000/14/EC) at maximum working speed 108 dB(A)
Measured sound power (ISO/EN 3744) at maximum working speed 106 dB(A)
Hopper capacity 500 liters
Hopper maximum load 380 Kg
Dust control By water
Dust control system tank total capacity (No. 2) 240 liters
Lighting and signalling system Road type
Transmission Hydrostatic servoassisted
Steering system On the rear axle, power assisted
Brake Hydraulic
Parking brake Mechanic
Controls Hydraulic

SERVICE MANUAL ENGLISH
RS 501 33015500(3)2008-02 7
GENERAL INFORMATION
LDW 1603/B2 diesel engine data (*) Values
Make Lombardini
Type LDW 1603/B2
Cylinders 3
Maximum speed 2,600 rpm
Maximum working speed 2,200 rpm
Maximum power at 2,600 rpm 25 kW
Idle speed 900 rpm
Consumption while operating at 2,200 rpm 5.0 L/h
Consumption while operating at 2,600 rpm 5.9 L/h
Engine coolant 50% antifreeze AGIP and 50% water (**)
Engine oil type AGIP Sigma Turbo 15W/40 (***)
(*) For other diesel engine data/values, see the relevant Manual.
(**) See the coolant technical data and reference data tables below.
SPECIFICATIONS REFERENCE DATA
Boiling point °C 170 CUNA NC 956-16 97
Boiling point in solution with 50% water °C 110 FF.SS cat. 002/132
Freezing point in solution with 50% water °C -38 ASTM D 1384
Color / Turquoise
blue
Density at 15°C kg/l 1.13
(***) See the engine oil technical data and reference data tables below.
SPECIFICATIONS REFERENCE DATA
SAE QUALITY / 15W40 ACEA E3-96
Viscosity at 100°C mm2/s 13.7 API Service CG-4/SG
Viscosity at 40°C mm2/s 100 CCMC D5, PD-2
Viscosity at -15°C mm2/s 3,300 US Department of the Army MIL-L-2104 E
Viscosity index / 138 US Department of the Army MIL-L-46152 E
Flash point COC °C 230 MACK EO-L
Pour point °C -27 MAN M 3275
Density at 15°C kg/l 0.885 Mercedes Benz 228.3
VOLVO VDS2
MTU typ 2
Refuelling data Values
Fuel tank capacity 30 liters
Hydraulic system oil tank capacity 40.6 liters
Hydraulic system capacity 58 liters
Electrical system data Values
System voltage 12 V
Starting battery 12 V – 80 Ah

ENGLISH SERVICE MANUAL
833015500(3)2008-02 RS 501
GENERAL INFORMATION
Hydraulic system data Values
Maximum drive system pressure 250 Bar
Maximum accessory system pressure 120/200 Bar
Hydraulic system oil type (at ambient temperature above 10°C) AGIP Arnica 46 (****)
NOTE
If the machine is to be used at ambient temperatures below 10°C, the oil should be replaced with equivalent oil having a
viscosity of 32 cSt. For temperatures below 0°C, use oil with lower viscosity.
(****) See the below hydraulic system oil technical data and reference data tables.
TECHNICAL DATA REFERENCE DATA
AGIP ARNICA 46 32 ISO-L-HV
Viscosity at 40°C mm2/s 45 32 ISO 11158
Viscosity at 100°C mm2/s 7.97 6.40 AFNOR NF E 48603 HV
Viscosity index / 150 157 AISE 127
Flash point COC °C 215 202 ATOS Tab. P 002-0/I
Pour point °C -36 -36 BS 4231 HSE
Density at 15°C kg/l 0.87 0.865 CETOP RP 91 H HV
COMMERCIAL HYDRAULICS
Danieli Standard 0.000.001 (AGIP ARNICA
22, 46, 68)
EATON VICKERS I-286-S3
EATON VICKERS M-2950
DIN 51524 t.3 HVLP
LAMB LANDIS-CINCINNATI P68, P69 and
P70
LINDE
PARKER HANNIFIN (DENISON) HF-0
REXROTH RE 90220-1/11.02
SAUER-DANFOSS 520L0463
ENVIRONMENTAL CONDITIONS
In the environment where the machine operates, there must not be any danger of explosion.
To avoid inhaling exhaust gas, the machine must be used only where there is a proper air change.
The machine operates correctly (*) in the following environmental conditions:
Temperature: -10°C to +40°C
Humidity: 30% to 95%, not condensed
Store the machine indoor, in a clean and dry place, protected from bad weather conditions and with the following values:
Temperature: +1°C to +50°C
Humidity: maximum 95%, not condensed
(*) When using the sweeper at a temperature between -10°C and 0°C the dust control system cannot be used; moreover the
water tanks and the dust control system itself must be empty.
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SERVICE MANUAL ENGLISH
RS 501 33015500(3)2008-02 9
GENERAL INFORMATION
MAINTENANCE
The lifespan of the machine and its maximum operating safety are ensured by correct and regular maintenance.
WARNING!
See GENERAL INFORMATION and SAFETY paragraphs.
The following table provides the scheduled maintenance. The intervals shown may vary according to particular working conditions,
which are to be defined by the person in charge of the maintenance.
The instructions relating to the maintenance procedures given in the following table are described in the next paragraphs.
SCHEDULED MAINTENANCE TABLE
Maintenance
Running-in
period (after the
first 50 hours)
Every 10
hours or
before use
Every
200
hours
Every
600
hours
Every
1,200
hours
Every
2,400
hours
Long
periods
Engine oil level check
Engine air filter cleaning
Engine radiator fin cleaning check
Engine coolant level check
Battery fluid level check
Hydraulic system oil level and drain filter efficiency
check
Hydraulic system oil cooler fin check and cleaning
Hopper, filter and suction hose cleaning, and
gasket check
Dust control system nozzle and filter cleaning
Brake fluid level check
Reverse gear buzzer operation check
Diesel engine start-up safety system check
Tire pressure check
Suction inlet and skirt height and operation check
Side broom position check and adjustment
Engine oil change (7)(8)
Dust control system water filter cleaning
Parking brake check
Alternator belt tension check (7)
Climate control system compressor belt tension
check
Diesel engine oil filter replacement (7)(8)
Fuel filter replacement (7)
Nut and screw tightening and leakage check

ENGLISH SERVICE MANUAL
10 33015500(3)2008-02 RS 501
GENERAL INFORMATION
Maintenance
Running-in
period (after the
first 50 hours)
Every 10
hours or
before use
Every
200
hours
Every
600
hours
Every
1,200
hours
Every
2,400
hours
Long
periods
Lubrication
Engine coolant line sleeve check (7)
Drive system pump oil filter check
Hydraulic system oil drain filter replacement
Hydraulic system oil suction filter replacement
Alternator belt replacement (3)
Cab air filter replacement (1)
Injector calibration and cleaning (2) (3)
Climate control system belt replacement
Engine coolant change (3)
Hydraulic system oil change (3)
Brake system check
Hydraulic system pump pressure check
Minor engine overhaul (2) (4)
Major engine overhaul (2) (5)
(1) Or every 6 months
(2) Maintenance to be performed by Lombardini authorised Service Center
(3) Or every two years
(4) After 5,000 hours
(5) After 10,000 hours
(7) Every year, if the machine is not frequently used
(8) If a lower-quality oil is used, change it every 125 hours

SERVICE MANUAL ENGLISH
RS 501 33015500(3)2008-02 11
GENERAL INFORMATION
MACHINE NOMENCLATURE
Throughout this Manual you will find numbers in brackets, for example: (2). These numbers refer to the components indicated in
these two nomenclature pages. Refer to these pages whenever it will be necessary to identify a component mentioned in the text.
Cab
Left door
Hopper
Diesel engine
Suction fan
Flashing light
Dust control system left tank
Front fixed wheels
Rear steering wheels
Right side broom
Left broom
Suction inlet
Right door
Meter and control panel
Rear axle
Dust control system right tank
Rear suction pipe (*)
Left lid
Left lid fasteners
Right lid
Right lid fasteners
Cab right panel
Cab left panel
Right door handle
Left door handle
Hopper lid
Open lid support rod
Lifted hopper locking pins
Lifted hopper locking pins housing
Lifted hopper locking pins holes
Suction filter
Drain filter
Hydraulic system oil tank
Battery
Hydraulic system oil cooler
Suction inlet-to-hopper pipe
Fuel tank
Hopper manual lifting hand pump (to be used in case of
engine malfunction)
Hydraulic system oil drain filter
Hopper lifting device
Dust control system left tank
Left tank mounting screw
Dust control system right tank
Right tank mounting screw
Front towing hook
Engine air filter
Fuel tank filler neck
Hopper support rods
Left water tank filler plug
Right water tank filler plug
Brake fluid tank
Windscreen wiper fluid tank
Windscreen wiper motor
Combination switch
Steering wheel adjusting lever
Drive pedal
Brake pedal
Steering wheel
Driver’s seat
Suction inlet and brooms control lever
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
36.
37.
38.
39.
40.
41.
42.
43.
44.
45.
46.
47.
48.
49.
50.
51.
52.
53.
54.
55.
56.
57.
58.
59.
60.
Driver’s seat safety belt (*)
Hopper lifting/lowering lever
Suction activation lever
Cab heater control knob
Diesel engine throttle lever
Parking brake lever
Broom dust control system nozzle valve
Suction inlet dust control system nozzle valve
Skirt lifting switch
Lifted hopper warning light (red)
Hazard warning light switch
Dust control system switch
Cab blower switch
Windscreen wiper/washer switch
Climate control system switch (*)
Ignition key
Dust control system water tank warning light (red)
Warning buzzer (it activates together with the warning
lights 87, 91, 93, 94)
Fuse box B
Fuse box A
Indicators and warning lights
Optional indicator light
Optional indicator light
Engine coolant temperature
High beam indicator light
Running light indicator light
Charged battery indicator light (together with the indicator
light a buzzer activates with intermittent sound)
Parking brake indicator light (together with the indicator
light a buzzer activates with continuous sound)
Glow plug pre-heating warning light
Hour counter/revolution counter display:
It displays the hours, when the ignition key (76) is
turned on the first position, before running the engine;
It displays the engine speed, when the engine is
running and the charged battery warning light is off.
Low fuel warning light (a buzzer activates together with the
warning light)
Optional indicator light
Engine coolant high temperature warning light (a buzzer
activates together with the warning light)
Engine oil pressure warning light (a buzzer activates
together with the warning light)
Turn signal indicator light
Hopper lid opening/closing switch
Rear bumper
Diesel engine serial number/technical data plate (another
plate showing the same data as the plate affixed on the
diesel engine)(*)
High-pressure washing system hose with reel (*)
High-pressure water quick coupling (*)
Breather filter hood fasteners
Rear suction pipe fastener
Front skirt
Machine serial number
Hopper (dumping position)
Suction hose gasket
61.
62.
63.
64.
65.
66.
67.
68.
69.
70.
71.
72.
73.
74.
75.
76.
77.
78.
79.
80.
81.
82.
83.
84.
85.
86.
87.
88.
89.
90.
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91.
92.
93.
94.
95.
96.
97.
98.
99.
100.
101.
102.
103.
104.
105.
106.

ENGLISH SERVICE MANUAL
12 33015500(3)2008-02 RS 501
GENERAL INFORMATION
Hopper manual lifting hand pump lever
High-pressure water gun
Serial number plate/technical data/certification marking
Right water tank drain plug
Left water tank drain plug
High-pressure washing system pressure gauge
Breather filter hood
Hydraulic system oil filler plug
Hydraulic system pressure intake (on drive system pump)
Hydraulic system pressure intake (at suction fan pump)
Hydraulic system pressure intake (at accessory and
steering system pump)
107.
108.
109.
110.
111.
112.
113.
114.
115.
116.
117.
Hopper lid suction sealing gasket
Document holder
Hopper lifting/lowering lever safety flange
Suction inlet and broom lifting/lowering lever safety flange
Driver’s seat forward/backward adjustment lever
Ashtray
High-pressure water gun sprinkler nozzle
Cigarette lighter
Can holder
Broom speed adjuster (***)
Hydraulic system oil level indicator
(*) Optional for some countries.
118.
119.
120.
121.
122.
123.
124.
125.
126.
127.
128.

SERVICE MANUAL ENGLISH
RS 501 33015500(3)2008-02 13
GENERAL INFORMATION
MACHINE NOMENCLATURE (Continues)
99
100
19
18
7
8
2
11
10
1
103
104 45
17
102
26
9
15
9
16
8
21
24
20
13
6
3101113
25
97
98
110
112
111
115
12
14
4
S301479

ENGLISH SERVICE MANUAL
14 33015500(3)2008-02 RS 501
GENERAL INFORMATION
MACHINE NOMENCLATURE (Continues)
32
27 31
118
105
48
28
29 30
26
40
46 47
37
41 49 42
39
38
33
107
51
43
35
50
44
36
106
5
114
128
S301617

SERVICE MANUAL ENGLISH
RS 501 33015500(3)2008-02 15
GENERAL INFORMATION
MACHINE NOMENCLATURE (Continues)
123
120
121
66
61
59
65
69
63
122 56
53
55
68
108 58
62
67
57
54
60
64
109
23
34
124
125
126
119
52
22
127
116
117
S301481

ENGLISH SERVICE MANUAL
16 33015500(3)2008-02 RS 501
GENERAL INFORMATION
MACHINE NOMENCLATURE (Continues)
80
79
81 77 71 73 74 72 96 76
70
1
78
85
86
87
88
89
82 83 84
90
95
94
93
92
91
75
S301407

SERVICE MANUAL ENGLISH
RS 501 33015500(3)2008-02 17
SWEEPING SYSTEM
SWEEPING SYSTEM
DESCRIPTION
The sweeping system consists of:
Right side broom
Left broom
Broom arms
The brooms (A) and (B) are supported by arms (C) which are fastened to the machine frame.
Broom rotation is activated by hydraulic motors.
For proper sweeping and conveyance of dust and debris towards the suction inlet:
Broom height and tilting must be properly adjusted;
Proper brooms must be used according to the type of ground to be cleaned. The following types are available:
Polypropylene brooms
Polypropylene and steel brooms
AB
C
C
S300857
A)
B)
C)
–
–
•
•

ENGLISH SERVICE MANUAL
18 33015500(3)2008-02 RS 501
SWEEPING SYSTEM
TROUBLESHOOTING
The brooms do not clean correctly
Possible causes:
The brooms are not adjusted correctly (adjust).
The broom speed is not correct (adjust).
The brooms do not rotate
Possible causes:
There are oil leaks from the hydraulic system hoses (replace the hoses).
The hydraulic motors are faulty (replace).
The accessory system hydraulic pump does not pressurize the oil in the circuit (check the hydraulic system oil pressure).
1.
2.
1.
2.
3.