Speed Scrub 300 English Operator Manual (NA)

ENGLISH
®
SPEED SCRUB ® 300
AUTOMATIC FLOOR SCRUBBER
OPERATOR MANUAL
For the latest Parts manuals and other
language Operator manuals, visit:
www.nobles.com/manuals
9014512
Rev. 00 (03-2015)
*9014512*
INTRODUCTION
INTENDED USE
This manual is furnished with each new model.
It provides necessary operation and maintenance
instructions.
The automatic floor scrubber is intended for
commercial use, for example in hotels, schools,
hospitals, factories, shops, offices and rental
businesses. It is designed to scrub hard floor surfaces
(concrete, tile, stone, synthetic, etc.) in an indoor
environment. Do not use this machine on carpeted
surfaces. Use only recommended pads/brushes and
commercially available floor cleaning detergents. Do
not use this machine other than described in this
Operator Manual.
Read this manual completely and
understand the machine before
operating or servicing it.
This machine will provide excellent service. However,
the best results will be obtained at minimum costs if:
S The machine is operated with reasonable care.
S The machine is maintained regularly - per the
maintenance instructions provided.
S The machine is maintained with manufacturer
MACHINE DATA
supplied or equivalent parts.
To view, print or download manuals online visit
www.tennantco.com/manuals
PROTECT THE ENVIRONMENT
Please dispose of packaging materials
and used machine components such
as batteries in an environmentally safe
way according to your local waste
disposal regulations.
Always remember to recycle.
Please fill out at time of installation
for future reference.
Model No. Serial No. Installation Date -
UNCRATING MACHINE
Carefully check machine for signs of damage. Report
damages at once to carrier. Contact distributor or
Tennant for missing items.
To uncrate the machine, remove straps, wheel blocks
and shipping brackets. Using the supplied ramp
carefully back the machine off the pallet. Make sure
scrub head is in the raised position.
ATTENTION: Do not remove machine from pallet
without using ramp, machine damage may occur.
Tennant Company
PO Box 1452
Minneapolis, MN 55440
Phone: (800) 553- 8033 or (763) 513- 2850
www.nobles.com
Trojan and HydroLINK are registered trademarks of Trojan Battery Company.
Specifications and parts are subject to change without notice.
Original Instructions. Copyright E2015 Tennant Company.
All rights reserved.
2
Nobles Speed Scrub 300 (03- 2015)
TABLE OF CONTENTS
OPERATION
MAINTENANCE
IMPORTANT SAFETY INSTRUCTIONS . . . . . . .
4
MAINTENANCE CHART . . . . . . . . . . . . . . . . . . . . .
24
SAFETY LABELS . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
MACHINE COMPONENTS . . . . . . . . . . . . . . . . . . .
7
MACHINE SYMBOLS . . . . . . . . . . . . . . . . . . . . . . .
8
CONTROL PANEL COMPONENTS . . . . . . . . . . .
8
INSTALLING BATTERIES . . . . . . . . . . . . . . . . . . .
BATTERY PACK LIFT- OUT TRAY (Option) .
9
9
HOW THE MACHINE WORKS . . . . . . . . . . . . . . .
10
MACHINE MAINTENANCE . . . . . . . . . . . . . . . . . .
AFTER DAILY USE . . . . . . . . . . . . . . . . . . . . . .
AFTER WEEKLY USE . . . . . . . . . . . . . . . . . . .
AFTER EVERY 50 HOURS OF USE . . . . . . .
AFTER EVERY 100 HOURS OF USE . . . . . .
ELECTRIC MOTORS . . . . . . . . . . . . . . . . . . . .
BELTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ORBITAL SCRUB HEAD ISOLATORS . . . . . .
25
25
26
27
27
27
28
28
BRUSH AND PAD INFORMATION . . . . . . . . . . . .
10
MACHINE SETUP . . . . . . . . . . . . . . . . . . . . . . . . . .
ATTACHING SQUEEGEE ASSEMBLY . . . . .
INSTALLING BRUSH/PAD - 3 Lug Disk . . . .
INSTALLING BRUSH/PAD Insta-Click Magnetic Disk (Option) . . . . . . . . .
INSTALLING PAD - Orbital . . . . . . . . . . . . . . .
INSTALLING CYLINDRICAL BRUSHES . . . .
FILLING SOLUTION TANK . . . . . . . . . . . . . . .
ec-H2O NanoClean WATER CONDITIONING
CARTRIDGE (ec-H2O model) . . . . . . . . . . . .
ACCESSORY RAILS . . . . . . . . . . . . . . . . . . . . .
11
11
11
BATTERIES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAINTENANCE-FREE BATTERIES . . . . . . .
FLOODED (WET) LEAD-ACID BATTERIES .
CHECKING CONNECTIONS / CLEANING . .
CHARGING BATTERIES . . . . . . . . . . . . . . . . .
BATTERY CHARGER SETTINGS . . . . . . . . .
HYDROLINK BATTERY WATERING
SYSTEM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
28
28
28
29
29
30
SQUEEGEE BLADE REPLACEMENT . . . . . . . . .
33
15
15
ec-H2O NanoClean WATER CONDITIONING
CARTRIDGE REPLACEMENT . . . . . . . . . . . . . . .
34
MACHINE OPERATION . . . . . . . . . . . . . . . . . . . . .
PRE-OPERATION CHECK LIST . . . . . . . . . . .
OPERATING MACHINE . . . . . . . . . . . . . . . . . .
WHILE OPERATING MACHINE . . . . . . . . . . .
EMERGENCY SHUT-OFF BUTTON . . . . . . .
BATTERY DISCHARGE INDICATOR . . . . . . .
CIRCUIT BREAKER PANEL . . . . . . . . . . . . . .
HOUR METER . . . . . . . . . . . . . . . . . . . . . . . . . .
16
16
16
18
19
19
19
19
LOADING/UNLOADING MACHINE FOR
TRANSPORTING . . . . . . . . . . . . . . . . . . . . . . . . . .
35
STORING MACHINE . . . . . . . . . . . . . . . . . . . . . . . .
Freeze Protection . . . . . . . . . . . . . . . . . . . . . . . .
35
35
TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . .
36
DRAINING TANKS . . . . . . . . . . . . . . . . . . . . . . . . . .
DRAINING RECOVERY TANK . . . . . . . . . . . .
DRAINING SOLUTION TANK . . . . . . . . . . . . .
20
20
20
SERVICE INDICATOR CODES . . . . . . . . . . . . . . .
21
Nobles Speed Scrub 300 (03- 2015)
12
13
13
14
32
SPECIFICATIONS
GENERAL MACHINE
DIMENSIONS/CAPACITIES/PERFORMANCE . .
38
MACHINE DIMENSIONS . . . . . . . . . . . . . . . . . . . .
40
3
OPERATION
IMPORTANT SAFETY INSTRUCTIONS - SAVE THESE INSTRUCTIONS
The following warning precautions are used throughout
this manual as indicated in their description:
WARNING: To warn of hazards or unsafe
practices which could result in severe personal
injury or death.
FOR SAFETY: To identify actions which must be
followed for safe operation of equipment.
The following information signals potentially
dangerous conditions to the operator. Know when
these conditions can exist. Locate all safety devices on
the machine. Report machine damage or faulty
operation immediately.
WARNING: To Reduce the Risk of Fire,
Explosion, Electric Shock or Injury:
-
Read manual before operating machine.
-
Do not use or pick up flammable materials.
-
Do not use near flammable liquids, vapors or
combustible dusts.
This machine is not equipped with an
explosion proof 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 are
present.
-
Batteries emit hydrogen gas. Explosion or fire
can result. Keep sparks and open flame away
when charging.
-
Disconnect battery cables and charger cord
before cleaning and servicing machine.
-
Do not charge batteries with damaged cord. Do
not modify plug.
If the charger supply cord is damaged or
broken, it must be replaced by the
manufacturer or its service agent or a similarly
qualified person in order to avoid a hazard.
-
Do not use outdoors. Store indoors.
-
Spinning pad/brush, keep hands away.
WARNING: Magnetic Field Hazard. Magnetic
pad driver/brush can be harmful to pacemaker
wearers or medical implants.
4
FOR SAFETY:
1. Do not operate machine:
- Unless trained and authorized.
- Unless operator manual is read and
understood.
- Unless mentally and physically capable of
following machine instructions.
- Under the influence of alcohol or drugs.
- While using a cell phone or other types of
electronic devices.
- If not in proper operating condition.
- In outdoor areas. This machine is for
indoor use only.
- In areas where flammable vapors/liquids or
combustible dusts are present.
- With pads or accessories not supplied or
approved by Tennant. The use of other
pads may impair safety.
- In areas with possible falling objects.
- In areas that are too dark to safely see the
controls or operate machine.
2. Before operating machine:
- Check machine for fluid leaks.
- Make sure all safety devices are in place
and operate properly.
3. When operating machine:
- Use only as described in this manual.
- Report machine damage or faulty operation
immediately.
- Wear closed- toe, non- slip work shoes.
- Reduce speed when turning.
- Go slowly on inclines and slippery
surfaces.
- Do not scrub on inclines that exceed 9%
grade or transport on inclines that exceed
21% grade.
- Follow site safety guidelines concerning
wet floors.
- 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.
- Do not allow machine to be used as a toy.
Nobles Speed Scrub 300 (03- 2015)
OPERATION
4. Before leaving or servicing machine:
- Stop on level surface.
- Set the parking brake, if equipped.
- Turn off machine and remove key.
5. When servicing machine:
- Disconnect battery connection and charger
cord before working on machine.
- All work must be done with sufficient
lighting and visibility.
- All repairs must be performed by trained
personnel.
- Use Tennant supplied or approved
replacement parts.
- Do not modify the machine from its original
design.
- Do not jack up machine.
- Avoid moving parts. Do not wear loose
clothing or jewelry and secure long hair.
- Do not disconnect the off- board charger’s
DC cord from the machine’s receptacle
when the charger is operating. Arcing may
result. If the charger must be interrupted
during charging cycle, disconnect the AC
power supply cord first.
- Do not use incompatible battery chargers
as this may damage battery packs and
potentially cause a fire hazard.
- Inspect charger cord regularly for damage.
- Keep work area well ventilated.
- Avoid contact with battery acid.
- Keep all metal objects off batteries.
- Do not power spray or hose off machine.
- Use a hoist or adequate assistance when
lifting batteries.
- Battery installation must be done by trained
personnel.
- Wear personal protection equipment as
needed and where recommended in this
manual.
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 weight and operator.
- Do not operate the machine on a ramp
incline that exceeds a 21% grade level.
- Use a winch if ramp incline exceeds a 21%
grade level.
- Lower the scrub head and squeegee before
tying down machine.
- Turn machine off and remove key.
- Set parking brake (if equipped).
- Block machine wheels.
- Use tie- down straps to secure machine.
For Safety: wear protective gloves.
For Safety: wear eye protection.
Nobles Speed Scrub 300 (03- 2015)
5
OPERATION
SAFETY LABELS
The safety labels appear on the machine in the locations indicated. Replace labels if they are missing or become
damaged or illegible.
WARNING LABEL - Located on recovery tank cover.
WARNING LABEL Batteries emit
hydrogen gas.
Explosion or fire can
result. Keep sparks
and open flame away
when charging.
Located on bottom side
of recovery tank.
WARNING LABEL Spinning pad. Keep hands away.
Located on disk scrub head model.
WARNING LABEL Electrical hazard.
Disconnect battery
cables before servicing
machine.
Located on circuit breaker
panel.
WARNING LABEL Spinning brush. Keep hands away.
Located on cylindrical scrub head
model.
WARNING LABEL Magnetic Field Hazard. Magnetic
pad driver/brush can be harmful
to pacemaker wearers or medical
implants.
Located on Insta-Click magnetic
pad driver/brush.
6
Nobles Speed Scrub 300 (03- 2015)
OPERATION
MACHINE COMPONENTS
Scrub Head Types
1
2
3
4
17 in / 43cm
Disk
5
20 in / 50cm
Disk
14
7
13
15
24 in / 60cm
Dual Disk
20 in / 50cm
Cylindrical
20 in / 50cm
Orbital
16
17
26
18
20
23
6
19
8
21
26
24
22
9
27
25
10
11
12
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
Cup holder/tray
Recovery tank lid
Recovery tank
Solution tank fill-port
Solution tank
Scrub head
Battery compartment
Accessory rail(s)
On-board battery charger cord hooks
Scrub head lift pedal
Squeegee foot pad
Squeegee assembly
Control handle
Control handle start bail
Speed control knob (drive model)
Forward/Reverse lever (drive model)
Control panel display
Emergency stop button (option)
Nobles Speed Scrub 300 (03- 2015)
19.
20.
21.
22.
23.
24.
25.
26.
27.
Hour meter
Key switch
ec-H2O on/off switch (option)
Off-board battery charger receptacle
Recovery tank drain hose
Solution tank level/drain hose
Parking brake (option)
Dual down pressure lever (option)
Solution flow control knob
7
OPERATION
MACHINE SYMBOLS
CONTROL PANEL COMPONENTS
Fast speed (drive model)
Slow speed (drive model)
Forward / Reverse (drive model)
On
Off
ec-H2O scrubbing (option)
1
Battery charge
Do not lift by accessory rails
No step
Dual down pressure
2
3
4
1. Service indicator - Lights up when a machine or
charger fault is detected.
2. Parking brake indicator (option) - Lights up
when parking brake lever is engaged. To turn off
indicator, disengage parking brake lever near left
rear wheel.
3. Battery discharge indicator (BDI) - The battery
discharge indicator serves two functions. In normal
scrub mode it displays the charge level of the
batteries. It also, in conjunction when the service
indicator is flashing, provides specific LED codes
when a machine or charger fault is detected.
4. ec-H2O indicator (Option) - Lights up blue when
ec-H2O system is activated and operating
normally.
Parking brake (option)
No detergent (ec-H2O option)
Water temperature (ec-H2O option)
Solution flow
No Solution flow
Circuit breaker
8
Nobles Speed Scrub 300 (03- 2015)
OPERATION
INSTALLING BATTERIES
WARNING: Batteries emit hydrogen gas.
Explosion or fire can result. Keep sparks and open
flame away when charging.
FOR SAFETY: When servicing machine, wear
appropriate personal protection equipment as
needed. Avoid contact with battery acid.
BATTERY SPECIFICATIONS
Two 12 volt deep-cycle batteries.
Contact distributor or Tennant for battery
recommendations.
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
BATTERY PACK LIFT- OUT TRAY (Option)
Models equipped with the optional battery lift-out tray
for quick or frequent battery pack exchange.
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
WARNING: Batteries emit hydrogen gas.
Explosion or fire can result. Keep sparks and open
flame away when charging.
1. Disconnect the battery cable connection at
machine (Figure 3).
1. Lift the recovery tank to access the battery
compartment (Figure 1).
FIG. 3
FOR SAFETY: When servicing machine, wear
appropriate personal protection equipment as
needed. Avoid contact with battery acid.
FIG. 1
2. With adequate assistance, carefully install the
batteries into the battery compartment. Arrange the
batteries as shown (Figure 2).
FOR SAFETY: When servicing machine, use a hoist
or adequate assistance when lifting batteries.
Before lifting battery pack, make sure the batteries
are secured to the battery lift- out tray with the
supplied battery strap as shown (Figure 4).
Machine Front
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.
2. Using an approved lift strap that supports the
weight of battery pack, connect the strap to the two
lift brackets as shown. Using a lift hoist rated to
handle the weight of the battery pack, carefully lift
the battery packs to and from machine. Keep one
hand on the battery lift-out tray when lifting for
stability (Figure 4).
RED
BLACK
FIG. 2
IMPORTANT: Make sure that the machine’s battery
charger is properly set before charging. See
BATTERY CHARGER SETTINGS.
Nobles Speed Scrub 300 (03- 2015)
FIG. 4
3. Reconnect the battery cable connection after
installing battery pack.
9
OPERATION
HOW THE MACHINE WORKS
BRUSH AND PAD INFORMATION
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.
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.
ec-H2O NanoClean Technology (option):
When using the ec-H2O NanoClean technology, normal
water passes through a module where it is electrically
converted into a cleaning solution. The electrically
converted water attacks the dirt, allowing the machine
to easily scrub away the suspended soil. The converted
water then returns to normal water in the recovery tank.
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.
Soft nylon bristle scrub brush (White) Recommended for cleaning coated floors without
removing finish. Cleans without scuffing.
Polypropylene bristle scrub brush (Black) This general purpose polypropylene bristle scrub brush
is used for scrubbing lightly compacted soilage. This
brush works well for maintaining concrete, wood and
grouted tile floors.
Super abrasive bristle scrub brush (Gray) Nylon fiber impregnated with abrasive grit to remove
stains and soilage. Strong action on any 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 finish.
Scrubbing pad (Blue) - Used for medium to
heavy-duty scrubbing. Removes dirt, spills, and scuffs
and leaves surface clean ready for recoating.
Stripping pad (Brown) - Used for stripping of floor
finish to prepare the floor for recoating.
Heavy duty stripping pad (Black) - Used for
aggressive stripping of heavy finishes/sealers, or very
heavy duty scrubbing.
Surface preparation pad (Maroon) - Used for very
aggressive chemical free removal of floor finish to
prepare the floor for re-coating
10
Nobles Speed Scrub 300 (03- 2015)
OPERATION
INSTALLING BRUSH/PAD - 3 Lug Disk
MACHINE SETUP
ATTACHING SQUEEGEE ASSEMBLY
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
1. Step down on the scrub head lift pedal to raise the
scrub head off the floor (Figure 8).
1. Lift the squeegee mount bracket to the raised
position. Place toe under pedal to lift (Figure 5).
FIG. 8
2. Attach the pad to the pad driver before installing
the disk (Figure 9). Secure pad with centerlock.
FIG. 5
2. Mount the squeegee assembly to the squeegee
mount bracket (Figure 6). Tighten knobs to secure
squeegee assembly to bracket.
FOR SAFETY: Do not operate machine with pads
or accessories not supplied or approved by
Tennant. The use of other pads may impair safety.
FIG. 9
FIG. 6
3. Connect the vacuum hose to the squeegee
assembly (Figure 7).
3. Single disk model - Position the three lugs into the
motor hub slots and give the pad driver/brush a
quick counter-clockwise turn to engage hub (Figure
10). View through the scrub head window to align
lugs.
FIG. 7
FIG. 10
Nobles Speed Scrub 300 (03- 2015)
11
OPERATION
Dual disk model - Turn the brush motor hub until
the lug slot with spring clip is visible. Position the
three lugs into the motor hub slots and give the pad
driver/brush a quick turn towards the spring clip
(Figure 11). View through the scrub head window to
align lugs.
NOTE: The left and right disks engage the hubs in
opposite directions.
INSTALLING BRUSH/PAD - Insta-Click Magnetic
Disk (Option)
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
WARNING: Magnetic 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 (Figure 14).
FIG. 11
4. Single disk model - To remove the pad
driver/brush, press down on the plunger and turn
the pad driver/brush clockwise (Figure 12).
FIG. 14
2. Attach the pad to the pad driver before installing
the driver (Figure 15). Secure pad with centerlock.
FOR SAFETY: Do not operate machine with pads
or accessories not supplied or approved by
Tennant. The use of other pads may impair safety.
FIG. 12
Dual disk model - To remove the pad driver/brush,
grip the disk and give it a quick turn in the direction
as shown (Figure 13).
FIG. 15
3. Place the pad driver/brush under the scrub head
and lift into position. The Insta-Click pad
driver/brush will automatically click into position
(Figure 16).
FIG. 13
FIG. 16
12
Nobles Speed Scrub 300 (03- 2015)
OPERATION
4. To remove the pad driver(s)/brush(es), raise the
scrub head and press the yellow plunger button
with foot or hand (Figure 17). Pad will drop to floor.
FIG. 17
INSTALLING PAD - Orbital
2. Install the backer pad, retaining strips facing
outward, to bottom of scrub head (Figure 20).
Make sure pad is centered on scrub head.
FIG. 20
3. Attach the work pad to the backer pad (Figure 21).
For best cleaning performance and to avoid damaging
the pad driver plate or floor surface, always use backer
pad with work pads (Figure 18).
Scrub head
Pad driver plate
FIG. 21
Backer pad
INSTALLING CYLINDRICAL BRUSHES
Work pad
FIG. 18
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
1. Step down on the scrub head lift pedal to raise the
scrub head off the floor (Figure 22).
1. Step down on the scrub head lift pedal to raise the
scrub head off the floor (Figure 19).
FIG. 22
FIG. 19
Nobles Speed Scrub 300 (03- 2015)
13
OPERATION
2. Remove the debris tray by sliding it out from the
scrub head (Figure 23).
FILLING SOLUTION TANK
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
Remove the solution tank lid and fill the solution tank.
Stop filling tank when the level reaches the “3/3” mark
on the solution tank drain hose indicator (Figure 27).
ec-H2O Scrubbing - Only use cool clean water (less
than 70F/21C). Do not use hot water or add
conventional floor cleaning detergents. An ec-H2O
system fault will occur if cleaning detergents are added.
FIG. 23
3. Remove the idler plate from the scrub head by
unscrewing the yellow knob (Figure 24).
Conventional Scrubbing - Use hot water
(140F/60C maximum). Pour a recommended
cleaning detergent into the solution tank according to
mixing instructions on the container.
NOTE: Do not use the ec-H2O system when there are
conventional cleaning detergents in the solution tank.
Drain, rinse, and refill the solution tank with clear cool
water before operating the ec-H2O system.
WARNING: Flammable materials can cause an
explosion or fire. Do not use flammable materials
in tank(s).
FIG. 24
4. Slide the brushes into the scrub head and connect
the slotted ends of each brush into the drive hubs
(Figure 25).
FIG. 25
5. Connect the idler plate to the brush ends and
reattach the idler plate. Make sure the idler plate
hooks are engaged before tightening knob (Figure
26).
FIG. 26
ATTENTION: For Conventional Scrubbing, only use
commercially approved cleaning detergents. Machine
damage due to improper detergent usage will void the
manufacturer’s warranty.
FIG. 27
The solution tank fill- port is equipped with two hose
clips to hold hose while filling. The two clips are
different hose diameter sizes (Figure 28).
FIG. 28
6. Replace debris tray.
14
Nobles Speed Scrub 300 (03- 2015)
OPERATION
ec-H2O NanoClean WATER CONDITIONING
CARTRIDGE (ec-H2O model)
The ec-H2O system is equipped with a water
conditioning cartridge (Figure 29). The cartridge is
designed to protect the machine’s plumbing system
from potential scaling.
The cartridge is required to be replaced when it reaches
its maximum water usage or expiration time of when the
cartridge was activated, which ever comes first.
ACCESSORY RAILS
The machine is equipped with one or two accessory
rails which straddle the control console. The left side
rail also serves as the recovery tank and solution tank
drain hose holder.
The accessory rails are designed to store the
squeegee assembly, spray bottles and other accessory
items (Figure 30).
Depending on machine usage a new cartridge can last
anywhere from 12 to 24 months.
The control panel will signal a code when it’s time to
replace cartridge. See SERVICE INDICATOR CODES
for further details.
FIG. 30
The J-hooks on the underside of the right side rail allow
debris bag storage (Figure 31).
FIG. 29
All cartridges are labeled with a manufacture date. The
shelf-life of an un-installed cartridge is one year from
manufacture date. For new cartridge replacement, the
ecH2O module timer must be reset. See ec-H2O
NanoClean WATER CONDITIONING CARTRIDGE
REPLACEMENT.
ATTENTION: During first time use and after replacing
the water conditioning cartridge, the ec-H2O system
will automatically override the selected solution flow
rate for up to 75 minutes.
FIG. 31
ACCESSORY CLIPS (Option) - If model is equipped
with the optional accessory clips, the clips easily clip on
and off the rails for additional accessory storage
(Figure 32).
FIG. 32
Nobles Speed Scrub 300 (03- 2015)
15
OPERATION
To install the accessory clips, hook the clip over the rail
and push downward until it snaps into position. To
remove the accessory clip, reach under the clip and
carefully pull the latch tab downward to release from
rail. (Figure 33)
MACHINE OPERATION
FOR SAFETY: Do not operate machine unless
operator manual is read and understood.
PRE-OPERATION CHECK LIST
- Sweep area and remove any obstructions.
- Check brushes/pads for wear and damage.
- Check squeegee blades for wear and damage.
- Confirm recovery tank empty and screen and
debris tray is clean.
- Check scrub head skirt for wear and damage.
FIG. 33
The optional accessory clips allow for storage of wet
floor signs, spray bottles, squeegee assembly, debris
bags and other items (Figure 34).
- Cylindrical brush model - confirm scrub head
debris tray is empty and clean.
- ec-H2O Scrubbing: Confirm solution tank is filled
with clear cool water only.
- ec-H2O Scrubbing: Ensure all conventional
cleaning agents/restorers are drained and rinsed
from solution tank.
- Check machine for proper operation.
OPERATING MACHINE
1. Release the parking brake lever, if equipped
(Figure 35)
2. Turn the key to the on ( I ) position (Figure 35).
FIG. 34
ATTENTION: Do not use the accessory
rails to lift machine, damage may occur.
ATTENTION: Do not step on accessory
rails, damage may occur.
16
FIG. 35
3. ec-H2O models - The ec-H2O system will
automatically turn on at start up. To turn off the
ec-H2O system, press the ec-H2O switch located
below the key switch (Figure 36).
ATTENTION: During first time use and after replacing
the water conditioning cartridge, the ec-H2O system
will automatically override the selected solution flow
rate for up to 75 minutes.
Nobles Speed Scrub 300 (03- 2015)
OPERATION
ATTENTION: If cleaning detergent is accidentally
cycled through ec-H2O system, immediately turn the
ec-H2O system off. Drain solution tank, refill with cool
water and operate the ec-H2O system to flush out
detergent.
FIG. 36
ec-H2O INDICATOR
Solid blue
Blinking blue/red
CONDITION
Normal operation
Water conditioning
cartridge expired.
Replace cartridge.
See Service Indicator
Codes.
Solid or blinking red
6. Drive models - push the directional lever to the
forward position to go forward (Figure 39). To
reverse the machine pull the directional lever
backwards.
FIG. 39
7. To begin scrubbing, pull the start bail (Figure 40).
4. Lower the scrub head to the floor by stepping on
the scrub head lift pedal as shown (Figure 37).
FIG. 40
8. Drive models - Adjust the scrubbing speed by
turning the speed dial to the desired speed
(Figure 41).
Push models - Slowly push the machine forward.
The rotating brush(es) will help assist the machine
forward.
FIG. 37
5. Lower the squeegee assembly to floor by stepping
on foot pad as shown (Figure 38). To raise
squeegee assembly, place toe under foot pad and
lift. The vacuum motor will start when squeegee
assembly is lowered.
FIG. 41
FIG. 38
Nobles Speed Scrub 300 (03- 2015)
17
OPERATION
9. To adjust the solution flow rate when ec-H2O
scrubbing, press the solution flow button located on
the ec-H2O module (Figure 42). One LED= low,
two LED’s=medium, and three LED’s= high.
WHILE OPERATING MACHINE
WARNING: Flammable materials materials or
reactive metals can cause an explosion or fire. Do
not pick up.
1. Overlap each scrub path by 2 inches (5 cm).
2. Keep machine moving to prevent damage to floor
finish.
3. Wipe squeegee blades with a cloth if blades leave
streaks.
4. Avoid bumping the machine into posts and walls.
FIG. 42
10. To adjust the solution flow rate when conventional
scrubbing, turn the solution flow control knob
located underneath machine (Figure 43).
NOTE: The solution flow control knob is only functional
when conventional scrubbing.
FOR SAFETY: When operating machine, do not
scrub on inclines that exceed 9% grade or
transport on inclines that exceed 21% grade.
5. Pour a recommended foam control solution into the
recovery tank if excessive foam appears.
ATTENTION: Foam buildup will not activate the
float shut-off screen, vacuum motor damage will
result.
6. Use the double scrubbing method for heavily soiled
areas. First scrub the area with the squeegee up,
let solution set for 3-5 minutes, then scrub the area
a second time with squeegee down.
7. Orbital Scrub Head Model - Use caution when
working near the tile cove (Figure 45) and floor
mounted fixtures such as pedestal sinks and other
breakable items. Keep the metal scrub head edge
away to avoid possible damage.
FIG. 43
11. Speed Scrub 300 Option - When extra brush
pressure is needed for heavily soiled areas lift the
down pressure lever (Figure 44).
NOTE: Release the down pressure level when raising
scrub head.
Tile Cove
FIG. 45
8. When leaving the machine unattended, remove the
key and set the parking brake, if equipped.
9. Do not operate machine in areas where the
ambient temperature is above 110F/43C or below
freezing 32F/0C.
FIG. 44
12. To stop scrubbing, release the start bail and raise
the scrub head and squeegee assembly off floor.
Turn key off and set parking brake, if equipped.
18
Nobles Speed Scrub 300 (03- 2015)
OPERATION
EMERGENCY SHUT-OFF BUTTON (Drive models)
CIRCUIT BREAKER PANEL
Push the emergency shut-off button in the event of an
emergency (Figure 46). This red button shuts off all
power to machine. To regain power, turn the button
clockwise and restart the key.
The machine is equipped with resettable circuit
breakers to protect the machine from a current
overload. If a circuit breaker trips, disconnect the
battery cable connection and reset the breaker by
pressing the reset button after the breaker has cooled
down. Reconnect the battery cable connection. If the
circuit breaker does not reset or continues to trip
contact service personnel.
Only use this button in the event of an emergency. It is
not intended for routine machine shutdown.
The circuit breaker panel is located near the battery
compartment and identified as described below
(Figure 48).
FIG. 46
BATTERY DISCHARGE INDICATOR
The battery discharge indicator (BDI) displays the
charge level of the batteries while the machine is
operating. When the batteries are fully charged, all five
indicators are lit (Figure 47). When the discharge level
reaches the red light, stop scrubbing and recharge the
batteries. If the red light begins to flash, the scrubbing
function will automatically shut off to protect the
batteries from total discharge. Drive Model: The
machine will still propel when the red light is flashing,
this will allow user to transport machine to charging
station.
FIG. 48
Circuit
Breaker
Rating
CB1
4A
CB2
4A
CB3
4A
CB4
30 A
CB5
37 A
CB6
20 A
Circuit protected
Key switch, control board
ec-H2O module
ec-H2O pump
Propel
Brush motor
Vacuum motor
FOR SAFETY: When servicing machine, all repairs
must be performed by trained personnel.
HOUR METER
FIG. 47
The hour meter records the number of hours the
machine has been operated. Use the hour meter to
perform specific maintenance procedures and to record
service history (Figure 49).
FIG. 49
Nobles Speed Scrub 300 (03- 2015)
19
OPERATION
4. Option - Remove the debris tray and empty
(Figure 52).
DRAINING TANKS
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
DRAINING RECOVERY TANK
Drain and clean the recovery tank daily and between
solution tank refills.
1. Transport the machine to drain area.
2. For models equipped with drain hose caps, hold
the hose upward, remove cap then slowly lower
hose to drain. For models equipped with flow
control valve drain hose, lower hose and slowly
open valve to drain (Figure 50).
FIG. 52
5. Rinse out the recovery tank with clean water and
wipe clean of any soil residue (Figure 53).
FIG. 53
DRAINING SOLUTION TANK
Drain the solution tank daily.
1. Transport the machine to drain area.
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
FIG. 50
2. To drain remaining water from solution tank, pull
the solution hose from the accessory rail (Figure
54).
NOTE: When using a bucket to drain the machine, do
not use the same bucket to fill the solution tank.
3. Remove and clean the float shut-off screen (Figure
51).
FIG. 54
Firmly reconnect the solution hose to accessory rail
after draining tank.
FIG. 51
20
Nobles Speed Scrub 300 (03- 2015)
OPERATION
3. Rinse out solution tank with clean water
(Figure 55).
4. Remove the solution tank filter and clean screen
after every 50 hours of use (Figure 56). Solution
filter is located under machine at rear. Drain
solution tank before removing filter.
FIG. 55
FIG. 56
SERVICE INDICATOR CODES
When the machine or battery charger detects a fault, the service indicator will flash. A fault code will be provided to
determine problem as described below.
Control Panel
Flashing service
indicator
LED Fault Code
= Flashing
   
S S S 
S S  S S
S S  S
S S  S
S  S 
 S S S
 S S S
 S S 
Flashing LED
fault code
CAUSE
Emergency stop button activated.
Brush motor wiring, connector or control board
problem.
Vacuum motor wiring, connector or control
board problem.
Severe environment detergent pump wiring,
connector or control board problem.
Propel circuit breaker tripped.
SOLUTION
Release emergency stop button and restart
machine.
Contact service.
Contact service.
Contact service.
Software load failure.
Disconnect battery and reset circuit breaker. If
trip repeats, contact service.
Contact service.
Propel I-Drive fault
Propel I-Drive communication lost
Propel motor shorted fault
Restart machine. If fault repeats, contact service.
Contact service.
Brush motor over current
Contact service.
Nobles Speed Scrub 300 (03- 2015)
21
OPERATION
SERVICE INDICATOR CODES - Continued
LED Fault Code
= Flashing
 S  S
CAUSE
Start bail is pulled or obstructed before turning
machine on.
 S  S
Brush motor control board fault
Vacuum motor control board fault
 S  
 S S S
 S  S
Vacuum motor over current.
SOLUTION
Release start bail or remove bail obstruction
before turning machine on.
Disconnect battery cable connection and contact service to replace control board.
Contact service.
Vacuum motor shorted fault.
Contact service.
Brush motor shorted fault.
Contact service.
Charger communication fault
Scrub control board comm. fault
ec-H2O system comm. fault
Restart. If fault code persists, contact service.
S  S
ON-BOARD BATTERY CHARGER SERVICE INDICATOR CODES
LED Fault Code
= Flashing
 S S
S  S S
CAUSE
Charger error condition.
SOLUTION
Contact service.
Charger is not connected to battery pack.
Check cable connections.
Charger overheated.
Let charger cool. Move to well ventilated area.
Charge batteries in areas with temperatures
80F/27C or less. If fault persists, contact service.
Restart charger. If fault code persists, contact
service.
Replace Batteries.
S  S S S
S  S
Charger communication fault
S  S 
Charger timer exceeded maximum charging
time. Interrupts charging cycle.
22
Nobles Speed Scrub 300 (03- 2015)
OPERATION
ec-H2O SYSTEM SERVICE INDICATOR CODES - OPTION
Control Panel
Flashing
service
indicator
Flashing
LED fault
code
LED Fault Code
= Flashing
LCD Fault
Code
S  S S
0x0711
S   
0x0713
0x0714
0x0715
Solid or
blinking Red
ec-H2O
indicator
CAUSE
ec-H2O pump wiring, connector
or control board problem.
ec-H2O pump over current
SOLUTION
Contact service.
Contact service.
 S S S S
0x0717
ec-H2O pump shorted fault
Contact service.
 S  S S
0x0703
0x0712
0x0716
0x0727
0x0741
0x0746
0x0702
0x0708*
0x0721
0x0723
0x0726
ec-H2O system breaker tripped
ec-H2O pump breaker tripped
ec-H2O pump shorted fault
ec-H2O control board fault
Water conditioning pump open
Water conditioning pump fault
ec-H2O pressure switch trip
ec-H2O system over regulation
No ec-H2O cell current
ec-H2O cell over current
ec-H2O cell shorted fault
Reset circuit breaker. If trip repeats, contact
service.
Contact service.
Water conditioning cartridge
expired
Replace water conditioning cartridge.
ecH2O indicator
solid red
ecH2O indicator
blinking red*
ecH2O indicator blinking blue/
red
Contact service.
*Verify if cleaning detergent was added to solution tank. If ec-H2O system was operated with cleaning detergent, drain solution
tank, add clear water and operate the ec-H2O system until the fault code clears.
Nobles Speed Scrub 300 (03- 2015)
23
MAINTENANCE
MAINTENANCE CHART
3
12
1
12
15
7
4
14
Weekly
50 Hours
100 Hours
200 Hours
500 Hours
750 Hours
1250 Hours
14
10
8
14
9
Person
Resp.
O
O
O
O
Key
1
1
2
3
O
O
O
O
O
O
O
O
O
O
O
O
O
T
T
T
T
T
4
6
7
8
9
7
6
2
2
3
10
7
7
11
12
13
14
15
11
1
2
13
1
Interval
Daily
9
6
Description
Pad(s)
Brush(es)
Cylindrical Brushes
Recovery tank
Solution tank
Squeegee
Batteries
Debris trough
Scrub head skirt
Battery cells
Squeegee assembly drip trap reservoir
Cylindrical brushes.
Cylindrical scrub head
Recovery tank lid seal
Solution tank filter
Battery watering system (option)
Batteries, terminals and cables
Lower orbital isolators
Vacuum motor
Propel motor
Brush motor
Brush belt
15
Procedure
Check, flip or replace
Check, clean
Check, clean
Drain, rinse, clean float shut-off screen
and debris tray if equipped
Drain, rinse
Clean, check for damage and wear
Charge if necessary
Clean
Check for damage and wear
Check electrolyte level
Check, clean
Rotate brushes. Check for wear
Clean underside of scrub head
Check for wear.
Clean
Check hoses for damage and wear
Check and clean
Replace (4 qty)
Replace carbon brushes
Replace carbon brushes
Replace carbon brushes
Replace belt
O = Operator T = Trained Personnel
24
Nobles Speed Scrub 300 (03- 2015)
MAINTENANCE
4. Drain and rinse out the solution tank (Figure 60).
MACHINE MAINTENANCE
To keep the machine in good working condition, simply
perform the following maintenance procedures.
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
FOR SAFETY: When servicing machine wear
personal protection equipment as needed. All
repairs must be performed by trained personnel
FIG. 60
5. Disk scrub head - Turn pad over or replace when
worn (Figure 61).
AFTER DAILY USE
1. Drain and rinse out the recovery tank (Figure 57).
See DRAINING TANKS.
FIG. 61
FIG. 57
Orbital scrub head - Turn the work pad over or
replace when worn (Figure 62).
2. Option - Remove the debris tray and empty
(Figure 58).
FIG. 62
FIG. 58
6. Insta-Click pad driver/brushes - clean any debris
buildup from hub connection area (Figure 63).
3. Remove and clean the float shut-off screen
(Figure 59).
FIG. 63
FIG. 59
Nobles Speed Scrub 300 (03- 2015)
25
MAINTENANCE
7. Wipe the squeegee blades clean. Inspect blades
for wear and damage (Figure 64). Rotate blade if
worn. See SQUEEGEE BLADE REPLACEMENT.
11. Charge batteries (Figure 68). See BATTERIES.
FIG. 68
FIG. 64
8. Check the scrub head skirt for wear or damage
(Figure 65). Replace if worn or damaged.
AFTER WEEKLY USE
1. Check the electrolyte level in all batteries (Figure
69). See BATTERIES.
FIG. 69
FIG. 65
9. Clean the outside surface of the machine with an
all purpose cleaner and damp cloth (Figure 66).
2. Remove the drip trap cover from the squeegee
assembly and clean reservoir (Figure 70).
FIG. 70
FIG. 66
10. Cylindrical scrub head - Remove and clean debris
trough (Figure 67).
FIG. 67
26
Nobles Speed Scrub 300 (03- 2015)
MAINTENANCE
AFTER EVERY 50 HOURS OF USE
4. Inspect and clean the seal on the recovery tank lid
(Figure 74). Replace seal if damaged.
1. Remove the solution tank filter and clean screen
(Figure 71). Turn the filter bowl counter-clockwise
to remove. Make sure to drain solution tank before
removing filter.
FIG. 74
AFTER EVERY 100 HOURS OF USE
FIG. 71
2. Cylindrical brushes - Rotate brushes from front to
rear (Figure 72). Replace brushes when they no
longer clean effectively.
If machine is equipped with the optional battery
watering system, check the watering hoses and
connections for damage and wear (Figure 75). Replace
system if damaged.
FOR SAFETY: When servicing batteries, wear
personal protection equipment as needed. Avoid
contact with battery acid.
FIG. 72
3. Cylindrical scrub head - Remove debris buildup
from underside of scrub head (Figure 73).
FIG. 75
ELECTRIC MOTORS
Replace motor carbon brushes as indicated. Contact
trained personnel for carbon brush replacement.
Carbon Brush Replacement
FIG. 73
Nobles Speed Scrub 300 (03- 2015)
Hours
Vacuum motor
750
Propel motor (drive model)
1250
Disk brush motor
1250
Cylindrical brush motor
1250
Orbital brush motor
1250
27
MAINTENANCE
BELTS
BATTERIES
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
Replace belts every 1250 hours. Contact trained
personnel for belt replacement (Figure 76).
Cylindrical Brush Drive Belt
FOR SAFETY: Before servicing machine, stop on
level surface, turn off machine, remove key and set
parking brake if equipped.
The lifetime of the batteries depends on their proper
maintenance. To get the most life from the batteries;
S Do not charge the batteries more than once a day
and only after running the machine for a minimum of
15 minutes.
S Do not leave the batteries partially discharged for
long period of time.
S Only charge the batteries in a well-ventilated area to
prevent gas build up. Charge batteries in areas with
ambient temperatures 80_F / 27_C or less.
Dual Disk Brush Drive Belt
S Allow the charger to complete charging the batteries
before re-using the machine.
S Maintain the proper electrolyte levels of flooded (wet)
batteries by checking levels weekly.
Your machine is equipped with either flooded (wet)
lead-acid or maintenance-free batteries supplied by
Tennant.
FOR SAFETY: When servicing machine, keep all
metal objects off batteries. Avoid contact with
battery acid.
FIG. 76
ORBITAL SCRUB HEAD ISOLATORS
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
Replace the four lower vibration isolators every 500
hours. The lower isolators (hidden) are located
between the deck plate the driver plate. Contact trained
personnel for isolator replacement (Figure 77).
MAINTENANCE-FREE BATTERIES
Maintenance-free (Sealed AGM) batteries do not
require watering. Cleaning and other routine
maintenance is still required.
FLOODED (WET) LEAD-ACID BATTERIES
The flooded (wet) lead-acid batteries require routine
watering as described below. Check the battery
electrolyte level weekly.
NOTE: Do Not check the electrolyte level if the
machine is equipped with the optional battery watering
system. Proceed to the BATTERY WATERING
SYSTEM.
The electrolyte level should be slightly above the
battery plates as shown before charging (Figure 78).
Add distilled water if low. DO NOT OVERFILL. The
electrolyte will expand and may overflow when
charging. After charging, distilled water can be added
up to about 3 mm (0.12 in) below the sight tubes.
FIG. 77
28
Nobles Speed Scrub 300 (03- 2015)
MAINTENANCE
CHARGING BATTERIES
Before Charging
After Charging
The charging instructions in this manual are intended
for the battery charger supplied with your machine. The
use of other battery chargers that are not supplied and
approved by Tennant are prohibited.
If your machine is equipped with an off-board battery
charger refer to the charger’s owners manual for
operating instructions. Contact distributor or Tennant
for battery charger recommendations if machine is not
equipped with charger.
FOR SAFETY: The use of incompatible battery
chargers may damage battery packs and
potentially cause a fire hazard.
FIG. 78
NOTE: Make sure the battery caps are in place while
charging. There may be a sulfur smell after charging
batteries. This is normal.
IMPORTANT NOTICE: The battery charger is set to
charge the battery type supplied with your machine. If
you choose to change to a different battery type or
capacity (i.e. flooded (wet) lead-acid,
maintenance-free, sealed, AGM batteries, etc.), the
charger’s charging profile must be changed to prevent
battery damage. See BATTERY CHARGER
SETTINGS.
CHECKING CONNECTIONS / CLEANING
1. Transport the machine to a well-ventilated area.
After every 200 hours of use, check for loose battery
connections and clean the surface of the batteries,
including terminals and cable clamps to prevent battery
corrosion. Use a scrub brush with a strong mixture of
baking soda and water (Figure 79). Do not remove
battery caps when cleaning batteries.
WARNING: Batteries emit hydrogen gas.
Explosion or fire can result. Keep sparks and open
flame away when charging.
2. Park the machine on a flat, dry surface, turn off
machine and remove key.
FOR SAFETY: When servicing batteries, stop on
level surface, turn off machine, remove key and set
parking brake if equipped.
3. If the machine is equipped with flooded (wet) leadacid batteries check the battery electrolyte level
weekly before charging. See FLOODED (WET)
LEAD-ACID BATTERIES.
4. For models equipped with on-board chargers,
remove the charger’s power cord from the storage
hooks and plug power cord into a properly
grounded wall outlet (Figure 80).
FIG. 79
FIG. 80
Nobles Speed Scrub 300 (03- 2015)
29
MAINTENANCE
For models equipped with off-board chargers, first
connect the charger’s DC cord into the machine’s
battery charge receptacle then plug the AC power
supply cord into a properly grounded wall outlet
(Figure 81). Refer to the off-board battery charger’s
owner manual for operating instructions.
FOR SAFETY: Do not disconnect the off-board
charger’s DC cord from the machine’s receptacle
when the charger is operating. Arcing may result. If
the charger must be interrupted during charging,
disconnect the AC power supply cord first.
BATTERY CHARGER SETTINGS
The battery charger is set to charge the battery type
supplied with your machine. If you choose to change to
a different battery type or capacity, the charger’s
charging profile must be changed to prevent battery
damage.
For machine’s equipped with an off-board battery
charger, refer to the off-board charger’s owner manual
to change the charger’s charging profile.
FOR SAFETY: When servicing batteries, stop on
level surface, turn off machine, remove key and set
parking brake if equipped.
To change the on-board battery charger settings for a
different battery type :
1. Disconnect the battery cable connection at
machine (Figure 84).
FIG. 81
5. The charger will automatically begin charging and
and shut off when fully charged. The maximum
charging cycle may take up to 6- 12 hours
depending on battery type.
On-board battery charger: The battery discharge
indicator lights will ripple back and forth during the
charging cycle. When all five lights are flashing, the
charging cycle is complete (Figure 82).
FIG. 84
2. Unwrap the battery charger power cord from the
cord hooks.
3. Using a T25 star screwdriver, remove the two
screws located at the bottom of the control console
to access battery charger (Figure 85).
FIG. 82
6. After charging batteries unplug the power supply cord
and wrap cord around the cord hooks (Figure 83).
For models equipped with an off-board charger,
always disconnect the AC power supply cord first
before disconnecting charger from machine.
FIG. 85
FIG. 83
30
Nobles Speed Scrub 300 (03- 2015)
MAINTENANCE
4. Disconnect the battery cable, power cord and wire
harness from charger. Using a T25 star
screwdriver, remove the four screws that mount
charger to machine (Figure 86). Remove charger
from machine.
6. Using a small standard screwdriver, turn the dial to
the appropriate battery type according to the
following chart (Figure 88).
FIG. 88
FIG. 86
5. Remove the black cap from bottom side of charger
to access the profile dial (Figure 87)
Dial
Position
Battery Description Settings
with AH Ranges
0
1
2
3
Factory setting*
Wet, Trojan 105- 155 AH
Wet, Enersys/Tab 105- 155 AH
AGM, Discover 80- 150 AH
AGM, Fullriver 80- 150 AH
AGM, TPPL, Enersys 20- 40 AH
Gel, Sonnenschein 80- 150 AH
4
5
6
* The factory setting, dial position “0”, is pre-programmed
to accommodate the battery type supplied with new
machine. After the dial is changed from the factory
setting, it should not be returned to “0” otherwise battery
damage may result.
7. Replace the black cap on charger, reinstall battery
charger and replace control console.
FIG. 87
Nobles Speed Scrub 300 (03- 2015)
8. Reconnect the battery cable connection.
31
MAINTENANCE
HYDROLINK BATTERY WATERING SYSTEM
(Trojan 155AH Battery Option)
3. Locate the battery fill hose coupler inside the
battery compartment. Remove the dust cap and
connect the hand pump hose (Figure 90).
The following instructions are for models equipped with
the HydroLINK battery watering system option.
FIG. 90
4. Submerge the other end of the hand pump hose
into a bottle of distilled water (Figure 91).
The optional HydroLINK battery watering system
provides a safe and easy way to maintain the proper
electrolyte levels in your batteries. It is designed
exclusively for Trojan flooded (wet) lead-acid
batteries.
FOR SAFETY: When servicing machine, wear
personal protection equipment as needed. Avoid
contact with battery acid.
Before using the battery watering system check hoses
and connections for damage or wear.
1. Fully charge batteries prior to using the battery
watering system. Do not add water to batteries
before charging, the electrolyte level will expand
and may overflow when charging.
Distilled
Water
FIG. 91
5. Squeeze the bulb on the hand pump hose until firm
(Figure 92). The level indicators will turn black
when full.
2. After charging batteries, check the battery
electrolyte level indicators located on the battery
covers (Figure 89). If the level indicator is white
add water as described in the following
instructions. If the level indicators are black the
electrolyte is at the correct level, no water is
required.
FIG. 92
6. After adding water, replace the dust cap on the
battery fill hose and store the hand pump hose
inside the machine’s battery compartment for future
use.
FIG. 89
32
Nobles Speed Scrub 300 (03- 2015)
MAINTENANCE
SQUEEGEE BLADE REPLACEMENT
4. Rotate the rear blade to a new wiping edge (Figure
95). Make sure to align the slots in the blade with
retainer tabs.
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and 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 four edges are worn.
1. Remove the squeegee assembly from the machine.
2. Fully loosen the two outside knobs on squeegee
assembly. This will separate the spring loaded
blade retainer from squeegee frame (Figure 93). To
loosen the knobs quickly, squeeze the blade
retainer and squeegee frame together.
FIG. 95
5. Squeeze the squeegee frame and blade retainer
together and re-tighten the two outside knobs
(Figure 96).
FIG. 93
3. Remove worn blade(s) from the blade retainer
(Figure 94).
FIG. 96
FIG. 94
Nobles Speed Scrub 300 (03- 2015)
33
MAINTENANCE
ec-H2O NanoClean WATER CONDITIONING
CARTRIDGE REPLACEMENT
4. Fill in the installation date on the new cartridge
label (Figure 99).
FOR SAFETY: Before leaving or servicing machine,
stop on level surface, turn off machine, remove key
and set parking brake if equipped.
The water conditioning cartridge is required to be
replaced when it reaches its maximum water usage or
expiration time of when the cartridge was activated,
which ever comes first. The control panel will signal a
code when it’s time to replace cartridge. See
CONTROL PANEL OPERATION for further details.
FIG. 99
Depending on machine usage, on average, a new
cartridge can last anywhere from 12 months for heavy
machine usage to 24 months for light machine usage.
5. Install the new cartridge and reconnect the two
hoses. Make sure the hose connectors are fully
inserted into the cartridge.
ATTENTION: During first time use and after replacing
the water conditioning cartridge, the ec-H2O system
will automatically override the selected solution flow
rate for up to 75 minutes.
6. Reset timer for new cartridge.
1. Park the machine on a level surface, remove the
key and set parking brake, if equipped.
2. Lift the recovery tank to access the ec-H2O water
conditioning cartridge (Figure 97). Drain recovery
tank before lifting tank.
FIG. 97
Carefully read and understand all steps first before
performing procedure.
a. Turn key on.
b. Press and hold the service switch, located on
the ec-H2O module, for 10 seconds. After
releasing service switch, the three solution flow
indicator lights will begin to (ripple) move back
and forth (Figure 100).
c. Within 5 seconds after releasing the service
switch, while the three indicator lights are
moving back and forth, quickly press and
release the solution flow button located on
ec-H2O module (Figure 100).
The three indicator lights will then blink three
times to indicate timer has been reset.
Repeat process if the three indicator lights do
not blink three times.
Service switch
3 indicator lights
3. Disconnect the two hose connectors from the top
of the cartridge by pressing the gray collars inward
and pulling the connectors outward (Figure 98). Lift
cartridge to remove.
Solution flow button
Gray
Collar
FIG. 100
FIG. 98
34
Nobles Speed Scrub 300 (03- 2015)
MAINTENANCE
LOADING/UNLOADING MACHINE FOR
TRANSPORTING
When transporting the machine by use of trailer or
truck, carefully follow the loading and tie-down
procedure:
1. Raise the scrub head and remove squeegee
assembly.
2. Use a ramp that can support the machine weight
and operator and carefully load machine. Do not
operate the machine on a ramp incline that
exceeds a 21% grade level (Figure 101). A winch
must be used when ramp incline exceeds a 21%
grade level.
FOR SAFETY: When loading/unloading machine
onto/off truck or trailer, use a ramp that can
support the machine weight and operator.
FOR SAFETY: Do not operate the machine on a
ramp incline that exceeds a 21% grade level.
STORING MACHINE
The following steps should be taken when storing the
machine for extended periods of time.
1. Charge the batteries before storing machine to
prolong the life of the batteries. Recharge batteries
every 3 months.
2. Drain and rinse recovery tank and solution tank.
3. Store the machine in a dry area with squeegee and
scrub head in the up position.
ATTENTION: Do not expose machine to rain, store
indoors.
4. Open the recovery tank lid to promote air
circulation.
NOTE: To prevent potential machine damage store
machine in a rodent and insect free environment.
FREEZE PROTECTION
Storing machine in freezing temperatures.
1. Completely drain solution tank and recovery tank.
2. Empty the water from the solution tank filter located
under machine. Replace filter.
3. Pour 1 gallon / 4 liters of propylene glycol based
recreational vehicle (RV) antifreeze into the
solution tank.
FIG. 101
3. Once loaded, position the front of the machine up
against the front of the trailer or truck. Lower the
scrub head, turn key off and set parking brake, if
equipped (Figure 102).
4. Place a block behind each wheel (Figure 102).
5. Using tie-down straps, secure the machine using
the four tie-down brackets located on the machine
frame (Figure 102). It may be necessary to install
tie-down brackets to the floor of your trailer or
truck.
4. Turn machine on and operate the solution flow
system. Turn the machine off when the antifreeze
is visible on floor.
Models equipped with ec-H2O option - Operate
ec-H2O scrubbing to cycle antifreeze through
system.
5. After storing machine in freezing temperatures,
drain any remaining antifreeze from the solution
tank. Add clean water to solution tank and to
optional detergent tank and operate the machine to
flush system.
ATTENTION: Do not use control console area
or accessory storage rails for tie-down
locations, damage may occur.
FIG. 102
Nobles Speed Scrub 300 (03- 2015)
35
MAINTENANCE
TROUBLESHOOTING
PROBLEM
CAUSE
SOLUTION
Service indicator icon is
blinking
Machine or on-board battery charger
fault has been detected
See SERVICE INDICATOR CODES
ec-H2o indicator icon is
red or blinking red
ec-H2O system fault has been
detected
See SERVICE INDICATOR CODES
Machine will not operate
Emergency stop button activated
Turn button to reset
Machine fault detected
See SERVICE INDICATOR CODES
Batteries discharged
Recharge batteries
Loose battery cable(s)
Tighten loose cables
Faulty battery(s)
Replace battery(s)
Faulty key switch
Contact service
Faulty start bail switch
Contact service
Circuit breaker tripped
Reset circuit breaker
Faulty control board
Contact service
On-board battery charger Plug not connected to power supply
will not operate
Batteries over discharged
Machine will not propel
(Drive Model)
Brush motor will not
operate
Vacuum motor will not
operate
Poor scrubbing
performance
36
Check plug connection
Replace batteries
Battery charger fault detected
See SERVICE INDICATOR CODES
Faulty charger
Replace charger
Propel fault has been detected.
See SERVICE INDICATOR CODES
Circuit breaker tripped
Reset circuit breaker
Faulty propel motor or wiring
Contact service
Worn carbon brushes in motor
Contact service
Brush motor fault has been detected.
See SERVICE INDICATOR CODES
Faulty pad motor or wiring
Contact service
Circuit breaker tripped
Reset circuit breaker
Worn carbon brushes in motor
Contact service
Broken or loose belt (dual
disk/cylindrical models)
Contact service
Squeegee assembly is raised off floor
Lower squeegee assembly to floor
Vacuum motor fault has been detected See SERVICE INDICATOR CODES
Faulty vacuum motor or wiring
Contact service
Circuit breaker tripped
Reset circuit breaker
Debris caught in brush/pad
Remove debris
Worn brush/pad
Replace brushes/pad
Incorrect brush pressure
Adjust brush pressure
Wrong brush/pad type
Use correct brush/pad for application
Low battery charge
Recharge batteries
Nobles Speed Scrub 300 (03- 2015)
MAINTENANCE
TROUBLESHOOTING - Continued
PROBLEM
CAUSE
SOLUTION
Trailing water - poor or
not water pickup
Full recovery tank or excessive foam
buildup
Drain recovery tank
Loose drain hose cap or flow control
valve is open
Replace cap or close flow control valve on
drain hose
Worn squeegee blades
Rotate or replace squeegee blades
Clogged drip trap (Squeegee
assembly)
Remove cover and clean
Clogged squeegee assembly
Clean squeegee assembly
Loose vacuum hose connection
Secure vacuum hose connection
Clogged vacuum hose
Flush vacuum hose
Clogged vacuum hose
Flush vacuum hose
Damaged vacuum hose
Replace vacuum hose
Clogged float shut-off screen in
recovery tank
Clean screen
Recovery tank lid not completely
closed
Check lid for obstructions
Defective seals on recovery tank lid
Replaced seal
Empty solution tank
Refill solution tank
Low solution flow rate set
Increase solution flow rate
Clogged solution tank filter
Clean filter
Plugged solution supply line
Flush solution supply line
Low battery charge
Charge batteries
Batteries need maintenance
See BATTERIES
Defective battery or end of battery life
Replace batteries
Battery discharge indicator (BDI)
programmed incorrectly
See CHARGING BATTERIES
Faulty charger
Replace battery charger
Brush pressure set too high
Lower brush pressure. Lower dual down pressure lever
Little or no solution flow
Short run time
Nobles Speed Scrub 300 (03- 2015)
37
SPECIFICATIONS
GENERAL MACHINE DIMENSIONS/CAPACITIES/PERFORMANCE
MODEL
17 in / 43 cm Disk
(Push)
20 in / 50 cm Disk
(Push)
17 in / 43 cm Disk
(Drive)
20 in / 50 cm Disk
(Drive)
Length
51.25 in / 1302 mm
54 in / 1372 mm
51.25 in / 1302 mm
54 in / 1372 mm
Width
20 in / 508 mm
22 in / 559 mm
20 in / 508 mm
22 in / 559 mm
Height
43.1 in / 1095 mm
43.1 in / 1095 mm
43.1 in / 1095 mm
43.1 in / 1095 mm
Weight
220 Ib / 98 kg
230 Ib / 104 kg
230 Ib / 104 kg
240 Ib / 109 kg
Weight (with batteries)
366 Ib / 166 kg
376 Ib / 171 kg
390 Ib / 177 kg
400 Ib / 181 kg
GVW
457 Ib / 207 kg
467 Ib / 212 kg
482 Ib / 219 kg
492 Ib / 223 kg
Squeegee width
30.4 in / 772 mm
Recovery tank capacity
14 gal / 53 L
Solution tank capacity
11 gal / 42 L
Scrubbing path width
16.9 in / 430 mm
19.9 in / 505 mm
16.9 in / 430 mm
19.9 in / 505 mm
Down pressure
47 lbs / 21.3 kg
52 lbs / 23.5 kg
47 lbs / 21.3 kg
51 lbs / 23 kg
Dual down pressure
88 lbs / 40 kg
92 lbs / 41.7 kg
86 lbs / 39 kg
90 lbs / 41 kg
Scrubbing speed
Pad assist
200 fpm / 61 mpm
Transport speed
n/a
n/a
240 fpm / 73 mpm
Reverse speed
n/a
n/a
144 fpm / 44 mpm
Productivity rate - estimated actual
9,340ft2/hr / 868m2/hr
11,208ft2/hr / 1041m2/hr
12,453ft2/hr / 1157m2/hr
14,943ft2/hr / 1388m2/hr
ec-H2O productivity rate - est. actual
9,668 ft2/hr / 898 m2/hr
11,602ft2/hr / 1078m2/hr
12,891ft2/hr / 1198m2/hr
15,469ft2/hr / 1437m2/hr
Aisle turnaround width
52 in / 1321 mm
54.5 in / 1384 mm
52 in / 1321 mm
54.5 in / 1384 mm
Ramp incline for scrubbing
9% maximum
Ramp incline for transporting
21% maximum
Ramp incline for loading- empty tanks
21% maximum
Solution flow rate
.5 gpm / 1.9 L/min maximum
ec-H2O solution flow rate
Low: .12 gpm / .45 L/min, Med: .25 gpm / .94 L/min, High: .35 gpm / 1.3 L/min
Brush motor
Propel motor
24 VDC, 1hp / .75kW
n/a
n/a
24 VDC, .23 hp / .175 kW
Vacuum motor
24 VDC, .5hp / .37kW
Water lift
34.5 in / 876 mm
ec-H2O solution pump
24 VDC, 1.0 gpm / 3.8 L/min, min open flow
Machine voltage
24 VDC
Battery capacity
2- 12V 105AH C/20 Wet, 2- 12V 130AH C/20 Wet,
2- 12V 155AH C/20 Wet, 2- 12V 140AH C/20 Sealed/AGM
Total power consumption
31.5A nominal
36.5A nominal
34.5A nominal
Battery Charger - on-board
100- 240VAC, 50/60Hz, 24VDC, 13A
Battery Charger - smart off-board
100- 240VAC, 50/60Hz, 24VDC, 13A
Protection grade
39.5A nominal
IPX3
Sound pressure level LpA*
67 dB(A)
67 dB(A)
67 dB(A)
67 dB(A)
Sound uncertainty KpA*
0.8 dB(A)
0.8 dB(A)
0.8 dB(A)
0.8 dB(A)
Sound power level uncertainty LpA uncertainty KpA*
84.3 dB(A)
84.3 dB(A)
84.3 dB(A)
84.3 dB(A)
Machine vibration at hand-arm*
<2.5 m/s2
Ambient operating temperature
Min: 32F/0C, Max: 110F/43C
*Values per EN 60335- 2- 72. Specifications are subject to change without notice.
38
Nobles Speed Scrub 300 (03- 2015)
SPECIFICATIONS
GENERAL MACHINE DIMENSIONS/CAPACITIES/PERFORMANCE
MODEL
24 in / 60 cm
Dual Disk
20 in / 50 cm
Cylindrical Brush
20 in / 50 cm
Orbital
Length
51.75 in / 1314 mm
50.5 in / 1283 mm
49 in / 1245 mm
Width
26 in / 660 mm
25 in / 635 mm
20.5 in / 521 mm
Height
43.1 in / 1095 mm
43.1 in / 1095 mm
43.1 in / 1095 mm
Weight
250 Ib / 113 kg
250 Ib / 113 kg
255 Ib / 216 kg
Weight (with batteries)
410 Ib / 186 kg
410 Ib / 186 kg
415 Ib / 188 kg
GVW
502 Ib / 228 kg
502 Ib / 228 kg
507 Ib / 230 kg
Squeegee width
30.4 in / 772 mm
Recovery tank capacity
14 gal / 53 L
Solution tank capacity
11 gal / 42 L
Scrubbing path width
23.6 in / 600 mm
19.7 in / 500 mm
19.7 in / 500 mm
Down pressure
57 lbs / 26 kg
53 lbs / 24 kg
63 lbs / 28.5 kg
Dual down pressure
97 lbs / 44 kg
64 lbs / 29 kg
109 lbs / 49.5 kg
Scrubbing speed
200 fpm / 61 mpm
Transport speed
240 fpm / 73 mpm
Reverse speed
144 fpm / 44 mpm
Productivity rate - estimated actual
18,264ft2/hr / 1697m2/hr
14,943ft2/hr / 1388m2/hr
14,943ft2/hr / 1388m2/hr
ec-H2O productivity rate - est. actual
18,906ft2/hr / 1756m2/hr
15,469ft2/hr / 1437m2/hr
15,469ft2/hr / 1437m2/hr
Aisle turnaround width
53.5 in / 1346 mm
52 in / 1321 mm
49 in / 1245 mm
Ramp incline for scrubbing
9% max.
Ramp incline for transporting
21% max.
Ramp incline for loading- empty tanks
21% max.
Solution flow rate
.5 gpm / 1.9 L/min maximum
ec- H2O solution flow rate
Low: .12 gpm / .45 L/min, Med: .25 gpm / .94 L/min, High: .35 gpm / 1.3 L/min
Brush motor
24 VDC, 1hp / .75kW
Propel motor
24 VDC, .23 hp / .175kW
Vacuum motor
24 VDC, .5 hp / .37 kW
Water lift
34.5 in / 876 mm
ec- H2O solution pump
24 VDC, 1.0 gpm / 3.8 L/min, min open flow
Machine voltage
24 VDC
Battery capacity
2- 12V 105AH C/20 Wet, 2- 12V 130AH C/20 Wet,
2- 12V 155AH C/20 Wet, 2- 12V 140AH C/20 Sealed/AGM
Total power consumption
36A nominal
40A nominal
30A nominal
Battery Charger - on-board
100- 240VAC, 50/60Hz, 24VDC, 13A
Battery Charger - smart off-board
100- 240VAC, 50/60Hz, 24VDC, 13A
Protection grade
IPX3
Sound pressure level LpA*
67.7 dB(A)
68.7 dB(A)
67.5 dB(A)
Sound uncertainty KpA*
0.8 dB(A)
0.8 dB(A)
0.8 dB(A)
Sound power level uncertainty LpA uncertainty KpA*
83.8 dB(A)
84.2 dB(A)
83.5 dB(A)
Machine vibration at hand-arm*
<2.5 m/s2
Ambient operating temperature
Min: 32F/0C, Max: 110F/43C
*Values per EN 60335- 2- 72. Specifications are subject to change without notice.
Speed Scrub 300 (03- 2015)
39
SPECIFICATIONS
MACHINE DIMENSIONS
SINGLE DISK MODEL
30.4 in
772 mm
43.1 in
1095 mm
51.25 in
1302 mm
17 in / 43 cm
Model
54 in
1372 mm
20 in / 50 cm
Model
40
20 in
508 mm
17 in / 43 cm
Model
22 in
559 mm
20 in / 50 cm
Model
Nobles Speed Scrub 300 (03- 2015)
SPECIFICATIONS
DUAL DISK MODEL
30.4 in
772 mm
43.1 in
1095 mm
51.25 in
1314 mm
Speed Scrub 300 (03- 2015)
26 in
660 mm
41
SPECIFICATIONS
CYLINDRICAL BRUSH MODEL
30.4 in
772 mm
43.1 in
1095 mm
50.5 in
1283 mm
42
25 in
635 mm
Nobles Speed Scrub 300 (03- 2015)
SPECIFICATIONS
ORBITAL PAD MODEL
30.4 in
772 mm
43.1 in
1095 mm
49 in
1245 mm
Speed Scrub 300 (03- 2015)
20.5 in
521 mm
43
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