Scarab MERLIN Operating And Basic Maintenance Instructions
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Scarab MERLIN Operating And Basic Maintenance Instructions

Truck mounted sweeping machines
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TRUCK MOUNTED SWEEPING MACHINES
Technical operating and basic maintenance instructions
This document contains important Health & Safety advice and must remain with the Machine at all times
Uni-drive

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  • Page 1 TRUCK MOUNTED SWEEPING MACHINES Technical operating and basic maintenance instructions This document contains important Health & Safety advice and must remain with the Machine at all times Uni-drive...
  • Page 2 Unidrive Truckmounted Road Sweeper 1. Water tank 2. Locker 3. Side loading hatch 4. Door open/close ram 5. Rear wander hose (standard) MERLIN 6. Fuel tank UNI-DRIVE (orientation determined on chassis type) 7. LP water pump and valves 8. Widesweep brush assembly 9.
  • Page 3 To download the latest copy of this manual, scan the below QR code or visit our website This manual is published by the Technical Publications Department of Scarab Sweepers Ltd. and every effort is made to ensure that the information it contains is correct at the time of publication.
  • Page 4 APPLICABILITY these precise details. If this type of information is required, please contact our This manual covers the operating requirements of the Scarab Merlin, Merlin XP and Technical Sales staff giving your sweeper’s Serial Number. Magnum Hydrostatic sweepers with the CANbus 3 system.

  • Page 5: Table Of Contents

    Manual greasing & lubrication ............29 Exiting sweep mode ..............12 LCD MONITOR - OPTIONS SCREEN ............30 Engaging the reduction gearbox (scarab option only) ....13 OPERATOR’S NOTES Disengaging the reduction gearbox (scarab option only) ..... 13 DISCHARGING THE HOPPER (TIPPING) ..........14 USING THE AUXILIARY HYDRAULIC PUMP ...........

  • Page 6: Health & Safety Advice

    Operating Instructions - Unidrive Truckmounted Road Sweeper HEALTH & SAFETY ADVICE IN THE INTERESTS OF YOUR HEALTH AND SAFETY, IT IS IMPORTANT THAT THE FOLLOWING POINTS ARE OBSERVED AT ALL TIMES: • KEEP LONG HAIR, LOOSE CLOTHING AND HANDS AWAY FROM MOVING •...
  • Page 7 Operating Instructions - Unidrive Truckmounted Road Sweeper HAZARD AWARENESS All operators and workshop personnel should be aware of the physical and biological risks that are inherent in the operation of a road sweeper. The risk falls into two main categories as follows: •...

  • Page 8: Operating Advice

    OPERATING ADVICE Please remember, the information provided in this handbook is designed to ensure that the Scarab sweeper operates both safely and efficiently. The design of this machine is for the removal of spoil on traffic areas, also litter collection, using the wander hose.
  • Page 9 Operating Instructions - Unidrive Truckmounted Road Sweeper DOOR SAFETY PROP Ensure the prop is correctly positioned within the ratchet rack AUTO RATCHET PROP When inserting the door prop, ensure it is correctly positioned in the locating slot SAFETY PROPS Part No. SCAZ038022 2.4.1 E&OE...

  • Page 10: The Canbus System

    Operating Instructions - Unidrive Truckmounted Road Sweeper THE CANbus SYSTEM The CANbus system comprises two control panels (main and auxiliary) an LCD monitor and a number of control nodes. 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. Switches: The various types of switch function are grouped in two ways.

  • Page 11: Main Control Panel Switch Functions

    Operating Instructions - Unidrive Truckmounted Road Sweeper MAIN CONTROL PANEL SWITCH FUNCTIONS Switch functions are described from Left to Right and Top to Bottom. F1 / F2 - Press to activate special options. SYSTEM-START - Press to start/stop the system and engage/disengage hydrostatic drive. BRUSH SPEED (-) - Press to decrease brush speed.
  • Page 12 Operating Instructions - Unidrive Truckmounted Road Sweeper Auxiliary control panel switch functions HIGH-PRESSURE WATER PUMP (Option) - Press to start. SUCTION FAN - Press to start the Suction Fan (approximately 2000 rpm). CRUISE CONTROL - With the accelerator pedal depressed to the desired speed, press to activate cruise control.

  • Page 13: Remote-Control Switch Box Functions

    Operating Instructions - Unidrive Truckmounted Road Sweeper REMOTE-CONTROL SWITCH BOX FUNCTIONS The hopper Raise/Lower and rear door Open/Close switches are located in the remote control box. This is stowed in the cab, between the driver’s seat and door and is connected to a socket via a coiled lead.

  • Page 14: The Lcd Monitor

    Operating Instructions - Unidrive Truckmounted Road Sweeper THE LCD MONITOR The sweeping monitor displays information on the current status of the sweeper while it is in sweep mode, by indicating which items of equipment are active, plus other relevant information ie: fluid levels, fan speed and temperatures, it also alerts the user to any warnings by means of appropriate flashing symbols and, when appropriate, a warning buzzer.

  • Page 15: Additional Controls & Instruments

    Operating Instructions - Unidrive Truckmounted Road Sweeper ADDITIONAL CONTROLS & INSTRUMENTS BRUSH PRESSURE Do not exceed a pressure of 2.5 bar when adjusting brush pressure SIDE BRUSH CONTROLS WIDESWEEP CONTROLS settings. Failure to comply will result in drastically reduced brush life. MOUNTED IN CAB MOUNTED ON SUBFRAME - AIR-PRESSURE REGULATOR - Used to adjust the amount of...

  • Page 16: Operating In Sweep Mode

    Operating Instructions - Unidrive Truckmounted Road Sweeper OPERATING IN SWEEP MODE REFER TO THE HEALTH & SAFETY INFORMATION ON Page 1 REDUCING NOISE LEVELS & FUEL CONSUMPTION: Although it is important to always operate within the engine’s optimum speed range, there are times when it is possible to reduce engine speed to the lower end of this, thereby reducing noise levels.

  • Page 17: Suction Fan Boost Setting

    Operating Instructions - Unidrive Truckmounted Road Sweeper 6. Operate the Multi-Function Lever to swing the side brushes OUT. The multi-function lever can also be used to control nozzle-tilt (refer to Page 9 for operating details). The multi-function switch will automatically return to the central position from the side brush and nozzle control positions. SIDE BRUSH SIDE BRUSH NOZZLE...

  • Page 18: Engaging The Reduction Gearbox (Scarab Option Only)

    Operating Instructions - Unidrive Truckmounted Road Sweeper Engaging the reduction gearbox (scarab option only) On vehicles fitted with a Scarab reduction gearbox, road speed of approximately 80% can be achieved when selected. 1. Vehicle engine Running. Parking brake ON, Neutral gear selected.

  • Page 19: Discharging The Hopper (Tipping)

    Operating Instructions - Unidrive Truckmounted Road Sweeper DISCHARGING THE HOPPER (TIPPING) In the interest of health and safety and to avoid possible damage to the sweeper or adjacent structures, it is essential that the remote hopper/door controls are not activated from within the cab. Always use these controls outside of the vehicle from a vantage point that affords a good view of the sweeper and its immediate surroundings.

  • Page 20: Using The Auxiliary Hydraulic Pump

    Operating Instructions - Unidrive Truckmounted Road Sweeper USING THE AUXILIARY HYDRAULIC PUMP In the event of hydraulic system failure, an auxiliary (manually operated) hydraulic pump is fitted, to enable the rear door and hopper to be operated. This is located on the left hand side of the vehicle, adjacent to the hopper suction spigot.

  • Page 21: Standard Wander Hose

    Operating Instructions - Unidrive Truckmounted Road Sweeper STANDARD WANDER HOSE The wander hose is used to suck up objects in areas that the sweeper is unable to access ie:- drain inlets, under benches, etc. Using the standard wander hose Vehicle in hydrostatic drive. Drive control lever in neutral. Handbrake On. Sweep mode and multi-function lever OFF. 1.

  • Page 22: Using The Rear Mounted Wander Hose

    Operating Instructions - Unidrive Truckmounted Road Sweeper REAR-MOUNTED/OVERHEAD WANDER BOOMS Using the rear mounted wander hose Vehicle in hydrostatic drive. Drive control lever in neutral. Handbrake On. Multi-function lever ON. 1. Suction Fan ON. 2. Unhook the wander hose boom from its stowed position (2).

  • Page 23: Using The Overhead Wander Boom

    Operating Instructions - Unidrive Truckmounted Road Sweeper Using the overhead wander boom Vehicle in hydrostatic drive. Drive control lever in neutral. Handbrake On. Multi-function lever OFF. 1. Unlatch the hose assembly from its stowage and attach suction tube (extra tubes can be added to give greater length). 2.

  • Page 24: Using The Dust Suppression System

    Operating Instructions - Unidrive Truckmounted Road Sweeper USING THE DUST SUPPRESSION SYSTEM Filling the water tank Attach the appropriate coupling and water hose to the filler aperture and fill until the blue float reaches the top of the water level sight tube (2)(use clean water).

  • Page 25: Using The High-Pressure Water System (Option)

    MERLIN Fan wash assist is only an aid to fan cleaning. It is recommended that this option is used immediately following a days sweeping.

  • Page 26: Hand Lance Detergent Option

    Operating Instructions - Unidrive Truckmounted Road Sweeper Hand lance detergent option With the hand lance in use, check that the detergent container has sufficient fluid. Turn on the control valve (6). Adjust the spray pattern valve on the hand lance to achieve desired affect. Retractable hose The hand lance is attached to a 13 metre long rubber hose fitted to a hose reel (8).

  • Page 27: Clearing A Blockage In The Suction Path

    Operating Instructions - Unidrive Truckmounted Road Sweeper CLEARING A BLOCKAGE IN THE SUCTION PATH A blockage in the suction path will be indicated by a trail of material behind the vehicle. Use the following instruction to locate and remove the obstruction:- 1.
  • Page 28 Operating Instructions - Unidrive Truckmounted Road Sweeper AREA LIKELY TO BLOCK Part No. SCAZ038022 2.4.1 E&OE...

  • Page 29: Recommended Operator's Routine Maintenance

    RECOMMENDED OPERATOR’S ROUTINE MAINTENANCE It is important that the following routine maintenance procedures are carried out as directed. This will help to ensure that your Scarab sweeper performs at the optimum level of safety and efficiency. Refer to the paragraphs immediately following this schedule and to the Table of Contents for more detailed information.

  • Page 30: Key Maintenance Procedures

    Operating Instructions - Unidrive Truckmounted Road Sweeper It is vital that the water system is drained totally if the air temperature is expected to fall to 0°C or below. In frosty weather leave the hopper slightly raised with the rear and side door partially open. The foregoing are general recommendations only.

  • Page 31: Hydraulic Oil Tank

    Operating Instructions - Unidrive Truckmounted Road Sweeper HYDRAULIC OIL TANK It is advisable to top-up the Hydraulic oil level when the system is cold. The hydraulic oil tank gauge is fitted with low level sensor. If the oil level drops too low the brush gear will be lifted and a warning symbol will be displayed on the LCD screen and a buzzer will sound.

  • Page 32: Suction Nozzle Clearances

    Operating Instructions - Unidrive Truckmounted Road Sweeper Suction nozzle clearances TOWPOINT NOZZLE MINIMUM-HEIGHT ADJUSTER Inspect the suction nozzle flaps to verify that they are in good condition and do not show excessive wear. Adjust as necessary to achieve the correct flap to ground clearances. The factory settings are: •...

  • Page 33: Removing & Cleaning The Water Pump Element(S)

    Operating Instructions - Unidrive Truckmounted Road Sweeper Removing & cleaning the water pump element(s) Both the low-pressure and, if fitted, the, high-pressure water pump are fitted with strainers to ensure that foreign matter does not enter the pump. The following steps detail the recommended cleaning procedure. It will be necessary to place the shut-off valve(s) in the closed position.

  • Page 34: Manual Greasing & Lubrication

    Operating Instructions - Unidrive Truckmounted Road Sweeper Manual greasing & lubrication Carry out manual greasing in accordance with the appropriate schedule (Page 24) and by referring to the accompanying diagrams shown here. SUCTION NOZZLE ASSEMBLY SIDE BRUSH ASSEMBLIES BOTH SIDES Door Hinge x3 WIDESWEEP HOPPER RAM...

  • Page 35: Lcd Monitor - Options Screen

    Operating Instructions - Unidrive Truckmounted Road Sweeper LCD MONITOR - OPTIONS SCREEN TO ACCESS THE OPTION SCREEN MODE FROM THE START-UP SCREEN PRESS BUTTON Button function 00.00 N/MIN N/MIN 1. Display: Press to change background colours (black/white). 2. Menu: Press to access option screen mode (illustrated). 3.
  • Page 36 Operating Instructions - Unidrive Truckmounted Road Sweeper mins CAN Error mins mins 00.00 00.00 Hours worked Driver fault codes Displays the working time of various functions. Highlight either the CAN or desired Node. Service Hours only display when activated. Press the encoder to enter. Part No.
  • Page 37 Operating Instructions - Unidrive Truckmounted Road Sweeper Node0 Error J1939 Error CAN Error Node1 Error Node1.1 Error Node3 Error Node4 Error Node5 Error Node6 Error 00.00 00.00 CAN error screen Driver fault codes Identifies location of system errors. Entering a Node screen allows Pin-Contact view. Highlighted in red when active.
  • Page 38 Operating Instructions - Unidrive Truckmounted Road Sweeper N/MIN N/MIN 00.00 Km/h 00.00 00.00 Screen Settings Displays the following current conditions: Highlight the desired panel and press the encoder to enter the setting screen. • Engine Speed • Battery Voltage • Pedal Position •...
  • Page 39 Operating Instructions - Unidrive Truckmounted Road Sweeper 24.00 24.00 SET CLOCK (RTC) YEAR : 0000 HOUR : 00 MONTH : 00 MINUTE : 00 Brightness: 000% DAY : 00 SECOND : 00 DATE : 00.00.0000 TIME : 00.00.00 00.00 00.00 Screen brightness setting Time/date setting Rotate the encoder to adjust the screen brightness (2% increments).
  • Page 40 Operating Instructions - Unidrive Truckmounted Road Sweeper MACHINE NUMBER WK 0 FIRMWARE SOFTWARE NODE 2 NODE 3 NODE 4 NODE 5 EXIT ON / OFF NODE 6 00.00 00.00 Rear camera Information Enable/disable rear camera. When fitted. Displays current Node program version. A green tick displays in the centre of screen icon when camera is Press button (1) to access the PDF viewing screen.
  • Page 41 Operating Instructions - Unidrive Truckmounted Road Sweeper WARNING / WARNUNG / ATTENTION 00.00 00.00 Button checks Main control panel button check Highlight the appropriate panel and press the controller. Press the appropriate button on the main control panel. As each button is pressed the corresponding graphic will illuminate. A beep will sound if the function is fitted.
  • Page 42 Operating Instructions - Unidrive Truckmounted Road Sweeper Auxiliary control panel button check Use the main control panel instructions to test buttons and joystick. Part No. SCAZ038022 2.4.1 E&OE...

  • Page 43: Operator's Notes

    OPERATOR’S NOTES Part No. SCAZ038022 2.4.1 E&OE...
  • Page 44 Scarab Sweepers Limited Pattenden Lane, Marden, Kent TN12 9QD Telephone: 01622 831006 Fax: 01622 832417 International: +44 (0)1622 831006 International: +44 (0)1622 832417 e-mail: scarab@scarab-sweepers.com Web site: www.scarab-sweepers.com...

This manual is also suitable for:

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