background image

 

 

- 6 -

 

20. Off-board battery charger 

receptacle 

 

 
 
 
 

INSTALLING BATTERIES 

 

WARNING: Batteries emit 

hydrogen gas. Explosion or fire 
can result. Keep sparks and open 
flame away when charging. 

 

BATTERY SPECIFICATIONS 

FOR  SAFETY:  Before  leaving  or 
servicing  machine,  stop  on  level 
surface, 

turn 

off 

machine, 

remove  key  and  set  parking 
brake if equipped.

 

 

1 Lift the recovery tank to access the 

battery compartment (Figure 1). 

 

2

With adequate assistance, carefully 

install the batteries into the battery 

compartment. Arrange the batteries as 

shown 

 

FOR SAFETY: When servicing 
machine, use a hoist or adequate 
assistance when lifting batteries. 

 

 
 
 

3, Using the supplied battery post 

boots, connect the cables to the 
battery  posts  as  shown  (Figure 
2). Connect the machine’s black 
(-  )  battery  cable  last.  Use 
insulated  tools  when  working 
near batteries. 

 
 
 

HOW THE MACHINE WORKS 

 

Conventional scrubbing: 
When using the conventional 
scrubbing mode, water and 
detergent mixture from the 
solution tank flows to the floor 
and the rotating brush(es)/pad(s) 
scrub the floor clean. As the 
machine moves forward, the 
squeegee with vacuum suction 
picks up the dirty solution from 
the floor into the recovery tank. 

 

BRUSH AND PAD INFORMATION 
 

For best cleaning results use the 
appropriate brush or pad for your 
cleaning application. Listed below 
are brushes and pads and the 
applications for which each is best 
suited. 

NOTE:  The  amount  and  type  of 
soilage  play  an  important  role  in 
determining  the  type  of  brush  or 
pad  to  use.  Contact  a  Tennant 
representative 

for 

specific 

recommendations. 

Summary of Contents for ND-20

Page 1: ...ND 20...

Page 2: ...rly per the maintenance instructions provided The machine is maintained with manufacturer supplied or equivalent parts INTENDED USE ND 20 The automatic floor scrubber is intended for commercial use fo...

Page 3: ...oof motor The electric motor will spark upon start up and during operation which could cause a flash fire or explosion if machine is used in an area where flammable vapors liquids or combustible dusts...

Page 4: ...ors Follow mixing handling and disposal instructions on chemical containers Do not carry passengers on machine Use care when reversing machine Keep children and unauthorized persons away from machine...

Page 5: ...tective gloves For Safety wear eye protection 6 When loading unloading machine onto off truck or trailer Drain tanks before loading machine Use a ramp truck or trailer that can support the machine wei...

Page 6: ...e an explosion or fire Do not pick up Located near control console Located on control console and bottom side of recovery tank WARNING LABEL Batteries emit hydrogen gas Explosion or fire can result Ke...

Page 7: ...sory rail s 8 Scrub head lift pedal 9 Squeegee foot pad 10 Squeegee assembly 11 Control handle 12 Control handle start bail SCRUB HEAD TYPES 13 Speed control knob drive model 14 Emergency stop button...

Page 8: ...t the cables to the battery posts as shown Figure 2 Connect the machine s black battery cable last Use insulated tools when working near batteries HOW THE MACHINE WORKS Conventional scrubbing When usi...

Page 9: ...ny surface Performs well on buildup grease or tire marks Polishing pad White Used to maintain highly polished or burnished floors Buffing pad Red Used for light duty scrubbing without removing floor f...

Page 10: ...e assembly to bracket 3 Connect the vacuum hose to the squeegee assembl INSTALLING BRUSH PAD FOR SAFETY Before leaving or servicing machine stop on level surface turn off machine remove key and set pa...

Page 11: ...c Field Hazard Magnetic pad driver brush can be harmful to pacemaker wearers or medical implants 1 Step down on the scrub head lift pedal to raise the scrub head off the floor 2 Attach the pad to the...

Page 12: ...losion or fire Do not use flammable materials in tank s ATTENTION For Conventional Scrubbing only use commercially approved cleaning detergents Machine damage due to improper detergent usage will void...

Page 13: ...wear and damage 6 Confirm recovery tank empty and screen and debris tray is clean 7 Check scrub head skirt for wear and damage OPERATING MACHINE Turn the key 1 Press the power button 2 Lower the scrub...

Page 14: ...to floor finish 3 Wipe squeegee blades with a cloth if blades leave streaks 4 Avoid bumping the machine into posts and walls 5 When draining and refilling machine always top off the optional Severe E...

Page 15: ...ISCHARGE INDICATOR Voltageindicator Time indicator DRAINING TANKS FOR SAFETY Before leaving or servicing machine stop on level surface turn off machine remove keyand set parking brake if equipped DRAI...

Page 16: ...NK Drain the solution tank daily 1 Transport the machine to drain area 2 Todrain remaining water from solution tank pull the solution hose from the accessory rail 3 Rinse out solution tank with clean...

Page 17: ...for damage and wear Daily O 8 Batteries Charge if necessary Daily O 4 Scrub head skirt Check for damage and wear Daily O 7 Squeegee assembly drip trap reservoir Check clean 50 Hours O 10 Recovery tan...

Page 18: ...AFTER DAILY USE 1 Drain and rinse out the recovery tank 2 Remove the debris tray and empty 3 Disk scrub head Turn pad over or replace when worn 4 Insta Click pad driver brushes clean any debris buildu...

Page 19: ...remove Make sure to drain solution tank before removing filter 2 Inspect and clean the seal on the recovery tank lid replace seal if damaged Carbon Brush Replacement Replace motor carbon brushes as i...

Page 20: ...he use of incompatible battery chargers may damage battery packs and potentially cause a fire hazard IMPORTANT NOTICE The battery charger is set to charge the battery type supplied with your machine I...

Page 21: ...nd set parking brake if equipped Each squeegee blade has four wiping edges When the blades become worn simply rotate the blades end for end or top to bottom for a new wiping edge Replace blade if all...

Page 22: ...up against the front of the trailer or truck Lower the scrub head turn key off and set parking brake if equipped 4 Place a block behind each wheel 5 Using tie down straps secure the machine using the...

Page 23: ...tank Pour a 1 4 gallon 1 liter of propylene glycol based recreational vehicle RV antifreeze into the detergent tank 4 Turn machine on and operate the solution flow system Turn the machine off when th...

Page 24: ...brushes in motor Contact service Brush motor will not operate Brush motor fault has been detected See SERVICE INDICATOR CODES Faulty pad motor or wiring Contact service Worn carbon brushes in motor Co...

Page 25: ...Check lid for obstructions Defective seals on recovery tank lid Replaced seal Little or no solution flow Empty solution tank Refill solution tank Low solution flow rate set Increase solution flow rat...

Page 26: ...ing path width 500mm 500mm Brush pressure 23kg 41kg 23kg 41kg Squeegee width 763mm 763mm Brush motor 0 746KW 200rpm 0 746KW 200rpm Vacuum motor 450W 450W Voltage DC 24VDC 24VDC Maintenance Fee Battery...

Page 27: ...25 MACHINE DIMENTIONS...

Reviews: