
EN
ENGLISH
Clarke
®
Operator’s Manual (EN) - FOCUS S28/L28/S33/L33/S38/L38 WB
Form No. 70851A - 5 -
INTRODUCTION
Clarke’s newly designed Focus 38, 33, and 28 automatic scrubbers are effi cient and superior fl oor cleaning machines. The Focus
38 uses two brushes or pads to scrub a path 38 inches wide. The Focus 33 uses two brushes or pads to scrub a path 33 inches
wide. The Focus 28 uses two brushes or pads to scrub a path 28 inches wide. A squeegee wipes the fl oor while the vacuum motor
removes the dirty solution from the fl oor - all in one pass.
The Focus 38, 33, 28 automatic scrubbers come complete with six - 6 volt batteries, fi ve battery connector cables, two battery cables,
one battery charger, either two brushes or two pad drivers, and one operator’s manual.
Machine Specifi cations
Model
S38
S33
S28
Model Number
05230A / 05230C
05220A / 05220C / 05222B
05210A / 05210C / 05212B
Motor, Vac
1 HP (.74kw) three stage tangen-
tial discharge
1HP (.74kw) three stage tagential
discharge
1HP (.74kw) three stage tagential
discharge
Power Supply
36 volt (6-6V batteries)
242AH, 310AH
36 volt (6-6V batteries)
242AH, 310AH
36 volt (6-6V batteries)
242AH, 310AH
Solution Tank
30 gallon (114 liter)
30 gallon (114 liter)
30 gallon (114 liter)
Recovery Tank
30 gallon (114 liter)
30 gallon (114 liter)
30 gallon (114 liter)
Motors, Brush (2)
1 hp PM (.74kw)
1 hp PM (.74kw)
1 hp PM (.74kw)
Motor Traction
.50 hp PM (.37kw)
.50 hp PM (.37kw)
.50 hp PM (.37kw)
Brushes (2)
19 inch (48cm)
w/.5” (1.5cm) overlap
17 inch (43cm)
w/.5” (1.5 cm) overlap
14 inch (36cm)
w/.5” (1.5 cm) overlap
Brush Speed
200 rpm
200 rpm
200 rpm
Brush Pressure
Variable 150 lbs. - 220 lbs.
Variable 150 lbs. - 220 lbs.
Variable 150 lbs. - 220 lbs.
Speed, Forward
Variable to 230 ft./min.
Variable to 230 ft./min.
Variable to 230 ft./min.
Speed, Reverse
Variable to 180 ft./min.
Variable to 180 ft./min.
Variable to 180 ft./min.
Charger
36V, 21A, 115V/60hz
36V, 21A, 115V/60hz
36V, 21A, 115V/60hz
Length
68.28 inches (173 cm)
67 inches (170 cm)
65.0 inches (165 cm)
Width - Machine
40.33 inches (102 cm)
35.70 inches (91 cm)
30.0 inches (76 cm)
Height
43.75 inches (112cm)
43.75 inches (112 cm)
43.75 inches (112 cm)
Cleaning Rate
42,000 sq ft/hr (3,901 sq. m/hr)
35,000 sq ft/hr (3,252 sq. m/hr)
29,700 sq ft./hr (2,750 sq ft./hr)
Cleaning Swath
38 inch (97 cm)
33 inch (84 cm)
28 inch (71 cm)
Grade Cleaning
6° Incline
6° Incline
6° Incline
Weight w/Batteries (310AH)
1025 lbs. 465kg
1015 lbs. 460kg
1005 lbs. 456kg
Shipping Weight
w/batteries (310AH)
1328 lbs. 602kg
1318 lbs. 598kg
1308 lbs. 593kg
Noise
76.5 dBA
76.5 dBA
76.5 dBA
Vibration
<2.5 m/s
2
<2.5 m/s
2
<2.5 m/s
2