1. WELCOME TO THE TECHNICAL PRESENTATION OF SCRUBTEC R 253 1

2. Micro Ride-On Concept: Comparison with medium walk behind New segment of Micro Ride On has appeared on the market The speed of Ride On machine is higher than walk behind (6km VS walking speed) Ride On design allows more compactness Ride On design allows bigger tank capacities (70 L VS 45 L) Ride On design allows to stay seat 2

3. Technical specifications 3 VOLTAGE (V)24 IP PROTECTION CLASSIP X4 INSULATION CLASSIII RATED POWER (W) in working condition620 BRUSH MOTOR POWER (W)450 VACUUM MOTOR POWER (W)309 / 450 Drive MOTOR POWER (W) 400 VACUUM1000 mm H 2 O SOUND PRESSURE LEVEL (dB(A))63 WATER FLOW (cl/min) 0,75 cl/m / 1,5 cl/m / 3,0 cl/m / 2,8 l/min TANK (L ) SOLUTION / RECOVERY 70 / 70 BRUSH PRESSURE (KG) normal / extra-pressure15- 30 BRUSH SPEED (RPM)155 BRUSH SIZE (MM)530

4. Dimensions

5. Settings effectively controlled 5 To enter parameters setting press simultaneously horn and detergent buttons. To enter next parameter settings To increase parameter + To decrease parameter -

6. Solution flow rate setting 6 SCRUBTEC R 253 solution flow is controlled by the speed. Always the same amount of solution on the floor regardless of machine speed. 3 standard settings and number 4 as option Level 3: 3cl/m Level 2: 50% of level 3 giving 1,5cl/m Level 1: 25% of level 3 giving 0,75cl/m Level 4 can be changed by entering into hidden menu and change all other levels if needed Level 4: 2,8 L/min full valve open, not controlled by speed. More used as problem solver or for double scrubbing Water offLevel 1Level 2Level 3Level 4 Standard settings Option

7. Error codes 7 Errors are shown on display by ALARM XX + description & repeated On the main PCB (EB1) by Nr of LED RED blinking (useful in case the display not functioning)

8. CHASSIS SYSTEM 8 Transaxle Drive wheels Brush deck support levers Squeegee support

9. BRUSH DECK SYSTEM 9 Brush motor supply voltage controlled by EB1 depending on the load: 24V when consumption is > 9 amps. 20V when consumption is < 9 amps. (adjustable by entering into the hidden menu) Brush motor rpm reduction advantage in light application: Less water splashing Less noise Less stress of the surface due to lower rpm Lower energy consumption

10. BRUSH MOTOR ELECTRICAL INPUT CHECK 10 Apply an ammeter on the cable, Check the motor electrical input is 3 to 4 Amps @ 20 V (without load) Supplier - AMER Motor 450W @ 2800 rpm IP20

11. SQUEEGEE actuator 11 2 position actuator: Step 0 = retracted - mechanical end of stroke Step1 = extended - No adjustment required Max thrust load: 100 N equal to 10 Kg Speed: 16mm/Sec Full load current 3,5 A Amps IP44

12. BRUSH DECK Actuator 12 3 position actuator: Step 0 = retracted - mechanical end of stroke Step1 = intermediate - 85 mm (green LED) electronically adjusted Step2 = extended - 120mm (red LED) mechanical end of stroke No adjustment required Max thrust load: 300 N Speed: 16mm/Sec No load current AMPS MAX:1A/24 Full load current AMPS: 4A/24 IP44

13. Drive motor 13 TECHNICAL SPECIFICATIONS DRIVE MOTOR: - MOTOR POWER: 400W - TENSION: 24V -DUTY: 20A S2 60 sec - WITHOUT LOAD 3A - GEAR RATIO: 26/1 - PROTECTION: IP44 - INSULATION CLASS: F - MAX LOAD ON AXES: 300 Kg - RPM SHAFT: 125

14. VACUUM SYSTEM 14 No carbon brush replacement Apply an ammeter on the cable Check the motor electrical input is 25 Amps @ 24 V. Max peak 35 Amps for 10 sec. Check the gasket condition and correct assembly sequence to secure the proper sealing

15. SQUEEGEE SYSTEM 15 No hose removal needed Hose connected to squeegee support Patent elastic strap system Standard PU blades higher wear resistant Optional blades Red gum Standard Gum

16. Battery & onboard charger 16 Option on-board charger SPE Model: CBHD1-XR 24V - 13Amp high frequency Input: 85÷264 Vac, 50÷60 Hz PROTECTION GRADE: IP 30 Protection: against polarity inversion, short circuits, over- voltages, anomalies and thermal protection against overheating Option BATTERY PNUse per machine Description 805646002BATT.12V-110Ah WET Tubular Monobloc 805647002BATT.12V-72Ah WET Tubular Monobloc 805644002BATT.12V-105Ah GEL Monobloc 805643102BATT.12V-76Ah GEL Monobloc 805612682BATT.12V-68Ah AGM spiralcell Max runtime up to 6/7h Machine overall consumption 11/12 amps (on smooth floor and silent mode)

17. Battery & charger curve selection 17 Type of batteryvalue WET0 GEL / AGM generic1 GEL EXIDE®/SONNENSHINE2 GEL OPTIMA™3 GEL DISCOVER®4 GEL FULLRIVER®5 By the PARAMETER SETTINGS on control panel WET GEL (maintenance free) 122 V22,2 VLOW batt message 220,4 V21,6 VOFF brush 319,4 V20,6 VOFF VAC 418,4 V19,6 VOFF drive DEFAULT CHARGING CURVES: GEL / AGM generic (1) Voltage cut-off threshold

18. Charger error 18 GB-NTime of continuous use with discharged batteries N= nr of hours machine ON with battery level below 20,4 (wet) or 21,6 (gel) GCCharging cycle interrupted before completionOBC disconnected before the phase IV GD-NCharging phase duration (<4h) N= nr of hours from start to phase II (if < 4h) ERRORDESCRIPTION C1CHARGER COMMUNICATION C2BATTERY OVERVOLTAGE C3CHARGER OVERTEMP C4PHASE I TIME EXPIRED C5PHASE II TIME EXPIRED C6CHARGER FAULT Event memorized in ALARM LOG related to improper use of battery and/or battery charger:

19. Main board (EB1) 19 Drive motor (M3) F2 – low power fuse (3A) F1 - Main fuse (100A) Inside PCB cover Vac motor (M2) Battery connection Brush motor (M1)

20. Main board (EB1) 20 J1 – Detergent pump (M4) Deck actuator (M5) J3 – connection to EB2 J4 – OBC communication J6 – Chemical mixing system configuration: jumper on – Chemical mixing system disabled J7 – TrackClean J5 – solution level sensor J2 – solenoid valve (EV1)