General Information
15
Service Manual – Scrubtec R 253 - RA40
Technical Data
Description / Model
Nilfisk
Scubtec R253
Nilfisk
Scubtec R253 full PKG
Clarke RA40
Solution tank capacity
18,5 US gal (70 liters
)
Recovery tank capacity
18,5 US gal (70 liters
)
Machine length
50 in (1270 mm)
Machine width with squeegee
28.3 in (720 mm)
Machine width without squeegee
21.6 in (550 mm)
Machine height
40.1 in (1020 mm)
Turning space for U-turns
71 in (1800 mm)
Cleaning width
21 in (530 mm)
Rear driving wheel diameter
10 in (254 mm)
Rear driving wheel specific pressure on the floor (*)
145 psi (1,0 N/mm
2
)
Front steering wheel diameter
7.9 in (200 mm)
Front wheel specific pressure on the floor (*)
189 psi (1,3 N/mm
2
)
Brush/pad diameter
21 in (530 / 508 mm)
Brush pressure
33 lb (15 kg)
Brush pressure (extra pressure on)
66 lb (30 kg)
Solution flow values
0,75 cl/m / 1,5 cl/m / 3,0 cl/m / (2,8 l/min, if enabled
)
Chemical Mixing System detergent percentage
Ratio 1:500 ÷ 1:33 (0,25% ÷ 3%)
Sound pressure level at workstation (ISO 11201, ISO 4871, EN 60335-2-72) (LpA)
68 ±3 dB(A)
Machine sound power level (ISO 3744, ISO 4871, EN 60335-2-72) (LwA)
84 dB(A)
Vibration level at the operator’s arms (ISO 5349-1, EN 60335-2-72)
130 in/s
2
(3,3 m/s
2
)
Vibration level at the operator’s body (ISO 5349-1, EN 60335-2-72)
35.4 in/s
2
(0,9 m/s
2
)
Maximum gradient when working
2%
Drive system motor power
0.53 hp (400 W)
Drive speed (variable)
0 - 3.7 mi/h (0 - 6 km/h)
Vacuum system motor power
0.4 hp (310 W)
Vacuum system circuit capacity
39 in H
2
O (1000 mm H
2
O)
Brush motor power
0.6 hp (450 W)
Brush rotation speed
155 rpm
Total power draw (EN 60335-2-72)
26 A (620 W)
IP protection class
X4
Protection class (electric)
III (I for the battery charger
)
Battery compartment size
13.8x14.2x11 in (350x360x280 mm)
System voltage
24 V
Standard batteries (2)
Discover 12V-105Ah
Battery charger
100-240Vac 50-60Hz, 24Vdc 13A
Operating time (standard batteries) (EN 60335-2-72)
2,5 h
Weight without batteries and with empty tanks
262 lb (119 kg)
267 lb (121 kg)
Gross vehicle weight (GVW)
754 lb (342 kg)
Shipping weight
342 lb (152 kg)
502 lb (228 kg) Nilfisk 342
lb (155 kg) Clarke
(*) Machines have been tested under the following conditions:
◦
Battery maximum size
◦
Maximum brush and squeegee size
◦
Full detergent tank
◦
Optional equipment installed
◦
Wheel weight checked
◦ Print on the floor checked on cement for each single wheel
◦
Result expressed as maximum value for both front and rear wheels
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