FOCUS II BOOST 28

• Parts
• Diagrams
• Manuals
• Bulletins
• Repair Guides
• Docs

The Clarke-Alto Focus II Boost 28 is a battery-powered, walk-behind autoscrubber. Onboard BOOST Technology both reduces water and chemical use, but also extends life of scrubbing pads. Choose between 6 different models for any floor scrubbing need. Uneven floors are not a problem thanks to the gimble-mounted brushes and pad drivers.
 
Dimensions, Length x Width x Height: 60.5 x 29 x 44 in (153.7 x 73.7 x 111.8 cm)
Sound level: 63 dB(A)
Vacuum motor power: 0.75 hp (0.55 kW)
Battery power: 24V
Battery charger, onboard: 24V
Pad/brush size: 14 x 28 in (35.6 x 71 cm)
Solution flow, normal mode: 0.12gpm (0.45Lpm)
Solution flow, full range: 0.65gpm (2.5Lpm)
Brush pressure: 65lbs (29.5 kg), 125lbs (56.7 kg)
Squeegee width: 35 in (89 cm)
Brush motor power: 0.75 hp (0.56 kW)
Brush speed: 2,250 rpm
Solution tank capacity: 23gal (87L)
Recovery tank capacity: 23gal (87L)
Wheels: 10.24 x 3.35 in (26 x 8.5 cm) (2)
Speed, forward: 0-2.95 mph (0-4.8 km/h)
Speed, reverse: 0-1.98 mph (0-3.2 km/h)
Casters: 3.94 in (10 cm) (2)

Diagrams

• View all diagrams
• - Batteries
• - Batteries and Chargers
• - Chargers
• - Know Your Machine
• - Pad Holders
• - Pads
• -Simplified Electrical System
• -Simplified Recovery System
• -Simplified Solution System
• Chemical Mixing Assembly
• Deck Assembly
• Electrical Box Assembly
• Frame Assembly
• Handle Assembly
• Recovery Tank Assembly
• Solution Tank Assembly
• Squeegee Assembly
• Squeegee Lifting Assembly
• Wiring Diagram

Manuals

• Chemical Mixing System manual
• Focus II Boost 28 operator manual_2014
• Focus II Boost 28 operator manual_2017
• Focus II Boost 28 parts manual_2019
• Focus II Boost 28 service manual_2014

Bulletins

• IS56090024 - Parking Brake
• IS56090041 - Flex Plate Kit
• IS56090106 - Function Board Service Kit
• IS56090169 - Power Cord Bracket Kit
• IS56090232 - Onboard Charger Kit
• IS56090250 - Delta Q
• Onboard battery charger failures
• TSB-CL-017-05 - Control Board Failures
• TSB-CL-101-08 - Water Inside Brush Motor
• TSB-FC-2013-123 - Cord Interface Resistance
• TSB-FC-2013-127 - Leaking Solution Filter
• TSB-FC-2013-132 - Loosening Sprocket and Drive Chain
• TSB-FC-2013-141 - Onboard Charger Failure
• TSB-FC-2014-002 - Drive Wheel Grinding Noise
• TSB-FC-2014-031 - Squeegee Bracket Breaks Upon Impact
• TSB-FC-2015-007 - Machine can Move When Plugged in with Full Batteries
• TSB-FC-2015-031 - Vacuum Created in Solution Tank
• TSBCL2009-02 - Shaft Collar Preventing Wheel Movement
• TSBCL2009-04 - Charger Failures
• TSBCL2010-12 - Plate, Shield, and Isolator Replacement
• TSBCL2010-25 - New Transaxle and Wheel Kit
• TSBCL2011-0007 - Control Panel Seal Imporvement
• TSBCL2011-0010 - Deck Noise
• TSBCL2011-0014 - Boost Deck Noise
• TSBCL2012-0003 - New Carbon Brushes
• TSBCL2012-0004 - Drive Plate Failure
• TSS Bulletin - Power cord bracket - Clarke Focus II Boost 28 and 32

Repair Guides

• REPLACING THE FWD/REV SWITCH
• REPLACING THE FWD/REV SWITCH
• REPLACING THE FWD/REV SWITCH
• CLEANING AND REPLACING THE SOLUTION FILTER

Docs

• Clarke Focus Know Your Machine
• Clarke Warranty