Scarab Magnum User manual

MAIN FEATURES OF A TYPICAL SCARAB SWEEPER
LEFT HAND
SUCTION NOZZLE
SERIAL NUMBER
PLATE LOCATION
LEFT HAND
SIDE BRUSH
SIDE LOADING
HATCH
HOPPER COVER
MAIN HYDRAULIC VALVES
PNEUMATIC VALVES
OIL TANK & COOLER
EXHAUST GANTRY
WATER TANK
LOCKER
RIGHT HAND
SUCTION NOZZLE
RIGHT HAND
SIDE BRUSH
WIDE SWEEP BRUSH
WANDER
HOSE
SIDE
LOADING
HATCH
DOOR
RAM
L-P WATER PUMP
Scarab Merlin
Scarab Magnum
AUXILIARY HAND PUMP
EXTERNAL HOPPER
SECOND HOPPER
RAISE BUTTON
(RHD ONLY)
& DOOR CONTROLS
FUEL TANK
ALWAYS ON NEARSIDE OF VEHICLE
& STRAINERS
WATER TANK LEVEL GAUGE
MOUNTED ON COOLER GANTRY
LOCKER
H-P FRONT
SPRAY BAR VALVE
ACCESS COVER WITH
OIL LEVEL APERTURE
FUEL TANK
DOOR LOCKING MECHANISM
& OPTIONAL FAN-WASH VALVE
ALWAYS ON NEARSIDE OF VEHICLE

OPERATOR’S MANUAL
HYDROSTATIC
TRUCK-MOUNTED
SWEEPERS
VEHICLES EQUIPPED WITH CANbus CONTROLS
When re-ordering this document, please quote the following Part Number:
Manual Z030376
Original Issue ..................... Dec. 2004
Amdt.1 ............................... Aug. 2005
This manual is published by the Technical Publications Department of Scarab Sweepers
Limited and every effort is made to ensure that the information it contains is correct at the
time of publication. Due to a policy of continuous development, however, the Company
reserves the right to alter the specification and to supply when so altered without
reference to illustrations and descriptions in this manual.
Scarab Sweepers Limited
Pattenden Lane, Marden, Kent TN12 9QD
Telephone: [phone] Fax: [phone]
International: [phone] International [phone]
e-mail: scarab@scarab sales.com Web site: www.scarab-sweepers.com
Publication Z030376 © Scarab Sweepers Limited 2005

SCARAB HYDROSTATIC TRUCK-MOUNTED SWEEPERS
1 Operator’s Manual Original Issue - 28 November 2006
GENERAL INFORMATION
WARNING - VOLTAGE SENSITIVE COMPONENTS
DO NOT USE A BOOST STARTER / SUPER START. IF BATTERIES ARE
NOT CHARGED ALWAYS USE A FRESH SET. A BOOSTED START WILL
BURN OUT THE VEHICLES ELECTRONIC CONTROL NODES.
WEIGHTS, DIMENSIONS AND CAPACITIES
Gross Vehicle Weight (GVW)
MERLIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 tonne to 12.0 tonne
MAGNUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13.0 tonne to 15.0 tonne
Payload*
MERLIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typically 2300 kg to 6300 kg
MAGNUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typically 6340 kg to 8540 kg
Overall Length*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Typically 5500 mm
Front Overhang*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Typically 1240 mm
Rear Overhang* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Typically 1350 mm
Wheelbase* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Typically 3000 mm
Overall Width*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Typically 2220 mm
Overall Height (hopper lowered)* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Typically 2980 mm
Overall Height (hopper raised)* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Typically 4180 mm
Hopper Capacity
MERLIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5.5 m3
MAGNUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7.5 m3
Fuel Tank Capacity*
MERLIN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typically 100 litres
MAGNUM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Typically 150 litres
Hydraulic Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 litres
Water Tank*. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 900 litres to 1800 litres
* Dependent upon chassis and specification
NOTE:
In view of the fact that many of the foregoing values are subject to variables such as
chassis type and machine specification, it is not possible to quote precise details. If this
type of information is required, Scarab recommend that you contact our Technical Sales
staff giving your sweeper’s Serial Number.
TOWING
SERIOUS DAMAGE TO THE TRANSMISSION WILL RESULT IF THE VEHICLE IS TOWED WHILE THE
HYDROSTATIC DRIVE IS ENGAGED.
If towing is necessary, it is imperative that the hydrostatic drive is disengaged before making
any attempt to tow the vehicle.
IDENTIFICATION PLATES
The SERIAL NUMBER PLATE is located on the rear face of the left hand suction nozzle spigot.
The Serial Number will comprise four numerical digits only (for example 5843).
For the location of the vehicle’s VIN PLATE and CHASSIS NUMBER, refer to the chassis
manufacturers’ documentation.
LIMITATIONS OF USE
The Scarab Merlin and Magnum are classified as truck-mounted heavy-duty suction road
sweeprs and, as such, are intended only for operation in the sweeping and associated roles
for which they have been expressly designed.
APPLICABILITY
This manual covers the operating requirements of the Scarab Merlin and Magnum
Hydrostatic sweepers with the CANbus system. For operating information on the Unidrive
range of CANbus sweepers, please refer to Manual No. Z031792. For non CANbus versions
please refer to publications Z027055 (Hydrostatic) and Z027054 (Unidrive).

SCARAB HYDROSTATIC TRUCK-MOUNTED SWEEPERS
Original Issue - 28 November 2006 Operator’s Manual 2
TABLE OF CONTENTS
Para Title Page
GENERAL INFORMATION ................................................................................................. 1
TABLE OF CONTENTS (This Page) .................................................................................... 2
HEALTH AND SAFETY ADVICE .......................................................................................... 3
EXPLANATION OF SWITCH OPERATING SYMBOLS ......................................................... 4
LCD Screeen Information ................................................................................................. 6
OPERATING ADVICE ........................................................................................................ 6
THE CANbus SYSTEM ........................................................................................................ 7
DESCRIPTION OF MAIN CONTROL PANEL ...................................................................... 8
DESCRIPTION OF AUXILIARY CONTROL PANEL ............................................................ 13
Rear-mounted Nozzle Option ........................................................................................ 15
Additional Controls and Instruments ............................................................................. 16
OPERATING MODES ....................................................................................................... 17
Engaging Hydrostatic Drive............................................................................................ 17
Suction Fan Boost-setting................................................................................................ 18
Climbing Gradients ......................................................................................................... 18
Selecting Normal-Drive Mode........................................................................................ 19
Reducing Noise Levels and Fuel Consumption............................................................ 19
DISCHARGING THE HOPPER (TIPPING) ......................................................................... 20
Operating the Rear Door................................................................................................ 20
Operating the Hopper .................................................................................................... 21
In-cab Controls...................................................................................................... 21
External Controls ................................................................................................... 22
USING THE AUXILIARY HYDRAULIC PUMP..................................................................... 23
Rear Door ......................................................................................................................... 23
Hopper.............................................................................................................................. 24
WANDER HOSE & WANDER BOOM................................................................................ 25
USING THE LOW-PRESSURE WATER PUMP...................................................................... 27
Draining............................................................................................................................. 27
USING THE OPTIONAL HIGH-PRESSURE WATER PUMP .................................................. 28
Oil Level / Draining / Priming .......................................................................................... 29
OPTIONAL SUCTION FAN WASH-ASSIST SYSTEM.......................................................... 29
RECOMMENDED OPERATOR’S ROUTINE MAINTENANCE............................................. 31
KEY MAINTENANCE PROCEDURES ................................................................................ 33
Cleaning the Suction Fan ............................................................................................... 33
Suction Nozzle Clearances............................................................................................. 34
Side Brushes & Skirts ......................................................................................................... 34
Draining & Cleaning the Water Strainers ...................................................................... 35
Manual Greasing............................................................................................................. 36
Recommended Lubricants & Consumables................................................................ 38
Fluid Levels........................................................................................................................ 38
SCARAB PARTS & SERVICE PROVIDERS......................................................................... 39
LEGIONELLA STATEMENT ................................................................................................ 40
ENGINE SPEED-CONTROLLER INSTRUCTIONS .....................................Inside Rear Cover

SCARAB HYDROSTATIC TRUCK-MOUNTED SWEEPERS
3 Operator’s Manual Original Issue - 28 November 2006
HEALTH & SAFETY ADVICE
THIS OPERATORS MANUAL CONTAINS ESSENTIAL INFORMATION AND MUST
REMAIN WITH THE VEHICLE AT ALL TIMES.
IN THE INTERESTS OF YOUR HEALTH AND SAFETY, IT IS IMPORTANT THAT
THE FOLLOWING POINTS ARE OBSERVED AT ALL TIMES:
• AT NO TIME SHOULD UNQUALIFIED PERSONNEL BE PERMITTED TO OPERATE OR
WORK ON THE SCARAB SWEEPER.
• BEFORE DRIVING THE VEHICLE ENSURE THAT ALL RELEVANT VEHICLE CHECKS
HAVE BEEN CARRIED OUT, THAT ALL EQUIPMENT IS STOWED AND THAT THE
BRUSHES HAVE BEEN RAISED.
• DO NOT OVERLOAD THE HOPPER.
• DO NOT DRIVE THE VEHICLE WITH THE HOPPER IN THE RAISED POSITION, EVEN IF
THE HOPPER IS EMPTY.
• ALWAYS USE THE SAFETY PROP TO SUPPORT A RAISED HOPPER. NEVER WORK
UNDER A RAISED CAB OR HOPPER UNLESS THE APROPRIATE PROP IS IN POSITION.
• BEFORE OPERATING EITHER THE HOPPER-TIP CONTROLS OR REAR DOOR, ENSURE
THAT THERE IS SUFFICIENT CLEARANCE AND THAT IT IS SAFE TO DO SO. ENSURE
THAT ALL PERSONNEL ARE CLEAR OF THE REAR DOOR.
• BEFORE WORKING ON THE MACHINE:
POSITION THE VEHICLE ON FIRM, LEVEL GROUND, APPLY THE HANDBRAKE, STOP
THE ENGINE, REMOVE THE IGNITION KEY.
• BEFORE STARTING THE ENGINE ENSURE THAT ALL CONTROLS ARE SWITCHED OFF
AND THAT THE VEHICLE IS IN NEUTRAL.
• KEEP LONG HAIR, LOOSE CLOTHING AND HANDS AWAY FROM MOVING PARTS.
• HIGH PRESSURE WATER CAN BE HAZARDOUS, ALWAYS WEAR SUITABLE EYE
PROTECTION WHEN OPERATING THE HIGH-PRESSURE WATER PUMP AND WHEN
USING THE LANCE. DO NOT DIRECT THE WATER JET AT OTHER PERSONS. BEWARE
OF ELECTRICAL INSTALLATIONS ON PUBLIC BUILDINGS & LAMP POSTS Etc. AND
ALWAYS EXERCISE EXTREME CAUTION IN PUBLIC PLACES.
THE HAZARD SYMBOL IDENTIFIES GENERAL SAFETY RELATED TEXT
THROUGHOUT THIS DOCUMENT. WHERE APPROPRIATE, THE FOLLOWING
ADDITIONAL SAFETY SYMBOLS ARE ALSO USED: EYE PROTECTION,
PROTECTIVE FOOTWARE AND GLOVES.
THIS VEHICLE’S CRUISE CONTROL HAS BEEN MODIFIED TO ACT AS AN ENGINE SPEED
CONTROLLER WHEN IN SWEEP MODE. ON IVECO AND VOLVO CHASSIS THIS HAS
REQUIRED THE CRUISE CONTROL TO BE DISABLED. FOR SPECIFIC SPEED CONTROLLER
INFORMATION, REFER TO THE INSERT AT THE BACK OF THIS MANUAL.
The Caution Symbol identifies where the observation of a specific
procedure is required to avoid equipment damage or under-performance.
The Information Symbol identifies text offering helpful advice additional to
the main instructions.
The Check Symbol identifies text calling for a visual examination to confirm
the condition or status of a specific item.
REMEMBER, FAILURE TO COMPLY CAN RESULT IN SERIOUS INJURY.
IF IN DOUBT, ASK!

ADDITIONAL SAFETY ADVICE SYMBOLS
CHECK
VEHICLE
BEFORE
DRIVING
IN NEUTRAL
SWITCHES
OFF BEFORE
STARTING
CHECK ALL
CLEAR TO
RAISE BODY
FIRM LEVEL
GROUND
ONLY
USE CAB OR
HOPPER
SAFETY PROP
DO NOT
DRIVE WITH
BODY UP
SCARAB HYDROSTATIC TRUCK-MOUNTED SWEEPERS
Original Issue - 28 November 2006 Operator’s Manual 4
SWITCH OPERATING SYMBOLS
MAIN SWEEPING PANEL SWITCHES (FROM LEFT TO RIGHT & TOP TO BOTTOM)
HAZARD WARNING BEACONS
HIGH PRESSURE WATER PUMP 
HYDROSTATIC DRIVE
HIGH PRESSURE FRONT SPRAY BAR - RAISE / LOWER
CRUISE CONTROL (PEDAL POSITION ONLY)
SIDE BRUSH - ON / OFF
SUCTION NOZZLE - RAISE / LOWER
WIDESWEEP BRUSH - ON / OFF
SIDE BRUSH & SUCTION NOZZLE WATER SPRAYS - ON / OFF
SUCTION NOZZLE ADDITIONAL WATER - ON / OFF 
WIDESWEEP WATER SPRAYS - ON / OFF
WORK LIGHTS - ON / OFF
SIDE BRUSH PRESSURE - UP 
SIDE BRUSH PRESSURE - DOWN 
WIDESWEEP PRESSURE - UP 
Continued...

SCARAB HYDROSTATIC TRUCK-MOUNTED SWEEPERS
5 Operator’s Manual Original Issue - 28 November 2006
WIDESWEEP PRESSURE - DOWN 
SUCTION FAN - ON / BOOST
BRUSH SPEED ADJUSTMENT
FRONT BRUSH - RAISE / LOWER 
FRONT BRUSH - IN / OUT 
FRONT BRUSH + WATER SPRAY - ON 
HOPPER BODY - RAISE / LOWER
SAFETY INTERLOCK - HOPPER & REAR DOOR
REAR DOOR - OPEN
REAR NOZZLE OPTION ON MAGNUM PLUS ONLY
REAR NOZZLE - RAISE / LOWER 
REAR NOZZLE - TILT 
REAR WORK LIGHTS - ON / OFF 
SPARE 
DOOR PANEL SWITCHES
SIDE BRUSH IN/OUT
BRUSH MASTER (RAISES / LOWERS ALL PRE-SELECTED SWEEP GEAR)
PNEUMATIC SUCTION NOZZLE TILT - MOMENTARY OR LATCHED 
HYDRAULIC SUCTION NOZZLE TILT - UP / DOWN
 THIS SYMBOL INDICATES OPTIONAL EQUIPMENT FITS. -  INDICATES MAGNUM + ONLY
SWITCH OPERATING SYMBOLS

LCD SCREEN INFORMATION
SWEEP MODE (PANEL ON)
UPPER ROW SUCTION FAN SPEED
LOWER ROW
ROAD SPEED / ANY ACTIVE WARNINGS (SEE BELOW)
COMMON WARNINGS (number & text) & OPERATING CONDITIONS BUZZER
1: LOW OIL LEVEL, STOP (Engine running / All switches disabled *)YES
6: LOW OIL LEVEL (Engine NOT running / All switches disabled *)NO
2: HIGH OIL TEMP (Panel is ON / Engine running) YES
3: LOW BATTERY (When battery signal less than 23 Volts) YES
4: LOW WATER (Panel is ON / H-P pump switch is disabled) NO
5: HOPPER UP NO
7: PEDAL OUT OF RANGE (Hydrostatic Drive Potentiometer) NO
8: LOAD INDICATOR (optional) NO
DRIVE MODE (IGN ON / PANEL OFF)
UPPER ROW SCARAB SWEEPERS
LOWER ROW ENGINE SPEED (rpm)
*All switches EXCEPT Panel ON/STANDBY, Work-lights and Beacons are disabled.
SCARAB HYDROSTATIC TRUCK-MOUNTED SWEEPERS
Original Issue - 28 November 2006 Operator’s Manual 6
OPERATING ADVICE
Please remember, the information provided in this handbook is designed to
ensure that the Scarab sweeper operates both safely and efficiently.
A poorly maintained machine will become unreliable, inefficient and
potentially dangerous. Always observe the recommended maintenance
and safety related advice provided.
Many supposed operating problems can be traced to a lack of simple
daily maintenance. Going out to sweep in a machine that has blocked
screens, a dirt encrusted suction fan, poorly adjusted suction nozzles or
brushes is not only a waste of time; it is also a waste of fuel.
Unless it is wet or raining, ALWAYS use the low-pressure water spray system
when sweeping. This will not only reduce the amount of dust generated, it
will also ensure more efficient collection of material. This is because wet
material is heavier and will drop more readily from the air stream inside the
hopper. If swept dry more of the finer material will pass through the
screens, wearing out the fan blades on its way back to the environment
behind you.

SCARAB HYDROSTATIC TRUCK-MOUNTED SWEEPERS
7 Operator’s Manual Original Issue - 28 November 2006
THE CANbus SYSTEM (* INDICATES OPTIONAL EQUIPMENT)
The CANbus system comprises two control panels (main and auxiliary) and
a number of control nodes (normally seven). The system controls and
monitors all sweeper functions and maintains a log of various operating
parameters such as operating hours and any fault conditions that might
occur. The main panel contains a microchip which holds all the program
information and the data logs.
Control nodes: These are located adjacent to the systems they control.
Switches: The CANbus control panels use touch switches; these are
covered by a flexible overlay to identify their functions. The various types
of switch function are grouped in two ways.
Firstly they are colour coded as follows:
ORANGE = Electrical functions such as lighting.
RED = Critical functions (e.g. Hopper Raise).
PALE GREEN = Sweeping functions.
BLUE =WaterSprayfunctions.
Secondly, switches that control functions that are available either on/or
with both sides of the machine, e.g. side brushes and widesweep, are
grouped with left, right and centre function controls being positioned
accordingly on the panel. These are positioned within the light grey area
in the centre of the control panel.
Each switch has a red LED located at its upper left hand corner. This
illuminates when the switch is ON (latched) or PRESSED (non-latching).
Most switches are of the latching type (press once to turn ON and again
to turn OFF) however there are a number of non-latching switches. These
will only function while they are held down and are as follows:
(a) Safety Interlock
(b) Hopper Body RAISE
(c) Hopper Body LOWER
(d) Rear Door OPEN
(e) Momentary Nozzle Tilt
The main panel also incorporates a Liquid Crystal Display (LCD) screen
and a light-sensor.
The LCD provides real-time information relevant to the operating status of
the machine, in the form of warnings or feed-back, and acts as the system
inter-face when using the self-diagnostic facility.
The light-sensor automatically controls the switch/LCD back-lighting to
ensure legibility in low ambient light conditions.