NSS CHARGER 2717 DB Operation Manual

OPERATION MANUAL

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CHARGER 2717 DB

IMPORTANT SAFETY INSTRUCTIONS

WARNING: Failure to observe these instructions can cause

personal injury to machine operator or bystanders.

WARNING: Fire or explosion hazard.
NEVER operate this machine in an

explosive atmosphere (grain dust,
flammable liquids or fumes, etc.).

INTENDED USE

NSS Burnishers are intended for commercial use,
buffing and burnishing floors in an indoor environment.
It is not intended for spray burnishing.
NSS Burnishers are Twister Approved.
NSS does not recommend using these machines for
any other purpose.

FOR SAFETY

x ALWAYS read and understand all instructions before

operating or servicing machine.

x ALWAYS use this machine ONLY as described in

this manual.

x NEVER attempt to operate this machine unless you

have been trained in its operation.

x NEVER allow an untrained person to operate this

machine.

x ALWAYS operate this machine from the rear control

panel, not from the side.

x ALWAYS turn off master switch when attaching or

changing pads.

x NEVER attempt to operate this machine if it is not

working properly or has been damaged in any
manner.

x NEVER disconnect or modify any switches or safety

devices (circuit breaker).

x NEVER drop or insert any object into any machine

opening.

x NEVER operate this machine with any air opening

blocked. Keep all air openings free of dust, lint, hair,
etc.

x NEVER pick up anything that is burning or smoking,

such as cigarettes, matches or hot ashes.

WARNING: Fire or explosion hazard.
NEVER use flammable liquids

(gas, kerosene, solvents, or thinners)
to clean or burnish floor.

x NEVER allow this machine to be used as a toy. Close

attention is necessary when used by or near children.

x ALWAYS wear clean tennis shoes or “non-slip” shoes.

Leather soled shoes will be extremely slippery.

x ALWAYS keep face, fingers, hair or any other body

part or loose clothing away from any machine opening
or moving part (revolving pad driver).

x ALWAYS be sure that the ramp is secured to the

vehicle before attempting to load / unload.

x ALWAYS use extreme caution when operating the

machine on a ramp or loading / unloading this machine
into or out of a truck / trailer. Use extreme caution if
the ramp is wet, oily, or covered with cleaning
chemicals.

x NEVER stop or turn the machine on a ramp or incline.
x NEVER attempt to climb a grade or operate this

machine on a ramp or incline of more than 20 degrees.

x ALWAYS store this machine indoors in a dry, cool

area.

x NEVER park or store the machine near a dock, on

ramps, near a furnace, boiler, open flame, or other
high heat source.

x NEVER spray this machine with water or any liquids.
x NEVER allow the battery charging plug to get wet or a

short may occur.

x NEVER operate this machine when the battery

charger is plugged in.

x NEVER operate the machine outdoors or allow

machine to freeze.

x NEVER expose the machine to rain, snow, or extreme

temperatures.

x NEVER store any items on the machine.

ALL REPAIR SERVICE MUST BE PERFORMED BY AN NSS AUTHORIZED DISTRIBUTOR /
SERVICE STATION USING ONLY NSS ORIGINAL EQUIPMENT PARTS.

SAVE THESE INSTRUCTIONS

Charger 2717 DB with OBC 9092730 Orig. 05-07

IMPORTANT SAFETY INSTRUCTIONS

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BATTERY POWERED EQUIPMENT WITH ON BOARD CHARGERS

WARNING: Failure to observe these instructions can cause personal

injury to machine operator or bystanders.

Read and understand all
instructions before installing
or charging batteries.

No smoking, open
flames, or sparks while
working with batteries.

WARNING: Batteries emit hydrogen, which can cause fire or explosion.
NEVER smoke, light a match, or cause a spark during operation or charging.
ALWAYS charge in a well-ventilated area away from open flame.

GENERAL

x ALWAYS read and understand all instructions before

installing or charging batteries.

x NEVER attempt to install or charge batteries unless

you have been trained to do so.

x NEVER allow an untrained person to install or charge

batteries.

x ALWAYS remove all jewelry when working on or

near the batteries.

x ALWAYS turn off all switches during installation and

service.

x ALWAYS disconnect the battery leads before

performing any service or repair.

x ALWAYS wear eye protection, rubber gloves and

protective clothing to avoid contact with battery acid.

x NEVER lay anything on top of batteries as arcing

may occur.

x IF CONTACT WITH BATTERY ACID OCCURS,

follow these instructions:

x SKIN – rinse area with water.
x EYES – Flush with water for 15 minutes.
x INTERNAL – Drink water or milk. Follow with Milk

of Magnesia, beaten egg or vegetable oil. Call a
physician immediately.

BATTERY INSTALLATION

x ALWAYS use two people to install, as batteries are

heavy.

x ALWAYS turn off all machine switches.
x ALWAYS position batteries as shown on the

machine installation decal to maintain machine
balance.

x ALWAYS connect batteries as shown on the

machine installation decal to avoid shorting out the
batteries and the electrical system.

Contains acid.
Avoid contact

Poison. Causes
severe burns. Avoid
contact.

BATTERY CHARGING

x ALWAYS read instructions on charger carefully.
x ALWAYS use the NSS supplied charger with proper

voltage rating.

For lead acid batteries only, (does not apply to gel
cell or maintenance free batteries).

x ALWAYS check to ensure the battery water level

covers the battery plates before charging.

x ALWAYS check water level after charging and add

water if necessary to bring level to the bottom of the
fill hole.

x NEVER

battery
result.

x ALWAYS wipe any acid from the top of batteries

using a soap solution.

x ALWAYS study battery manufacturers’ specific

precautions such as recommended rates of charge.

x ALWAYS reattach caps to batteries. Do not charge

with caps loose or removed.

overfill batteries as

and machine damage may

x ADD only distilled or treated city water. Not well

water.

x NEVER charge a frozen battery.
x ALWAYS plug the charger into an earthed socket-

outlet.

x NEVER touch uninsulated portion of output connector

or uninsulated battery terminal.

x ALWAYS disconnect the AC supply before making or

breaking the connections to the battery while
charging.

x NEVER open or disassemble charger.
x NEVER operate charger if the AC supply cord is

damaged or if the charger has received a sharp blow,
been dropped, or otherwise damaged in any way.

ALL REPAIR SERVICE MUST BE PERFORMED BY AN NSS AUTHORIZED DISTRIBUTOR/
SERVICE STATION USING ONLY NSS ORIGINAL EQUIPMENT PARTS

NOISE AND VIBRATION

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NOISE
Sound pressure level at Operator
position
VIBRATION
Weighted RMS acceleration value
(ISO 5349)

71 dB(A)

.269 m/s

2

MACHINE INSPECTION

x Now that the machine is unpacked remember to

recycle all packing materials.

x Inspect the machine for damage or missing

components. If damage is found, contact the
freight company to file a freight claim.

MACHINE OPERATION

General Information

This machine works best with dry polishing or
burnishing. Use mop on restorers rather than spray
buff systems to restore the shine.
Spray buffing is time consuming and uses more pads
because they become loaded with floor finish, which
can cause overloading of the machine’s control
system.

Quick Start

Connecting Battery Pack to Machine

Lower Brush/Pad to Operating Position

x Move the front of the machine from/to pad

changing position or operating position by grasping
the handle and moving it to the desired position.

x Turn on master switch (and key switch if so

equipped). Wait until you hear a click, the machine
is now on. See Machine Components for more
information.

x Check that the battery meter is reading in the high

or green range. The machine should be put on
charge if not in the high range. See Charging
Instructions later in this manual.

x Turn on brush switch. See Machine Components

for more information.

x Twist the handle grips forward (away from you) to

activate the Pad and Drive Motors. To move
backward twist the handle grips backward (toward
you). See Machine Components for more
information.

CAUTION: This Machine must be moving at all
times when the pad is rotating or the floor may be
damaged.

When the machine is shipped with batteries, the
machine will arrive with the battery pack
disconnected from the machine.
x Lift up on the handle on the top cover to expose the

battery pack.

x Connect the cable with the Anderson connector

into the Anderson connector mounted to the
machine at the rear of the battery compartment in
front of the control column.

For machines shipped without batteries

x See Battery Installation in the Maintenance Section

later in this manual.

Transporting the Machine to Work Site

NSS recommends transporting the machine to the

work site with the front of the machine in the
operating position and the brush switch in the off
position. This will reduce the potential of damage to
the Flexiwall Shield and Pad Driver when moving
through stock/storage rooms and double swinging
doors.

For questions and all information pertaining to
this machine read the rest of this manual.

MACHINE COMPONENTS

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Operator Control Column

The operator control column is located at the rear of
the machine. This column has components that
control various machine functions.

Drive System Control

x At the top on both sides of the control column are

two (2) rubber twist grips. These grips rotate
forward and backward to control the direction and
speed of the machine.

x They also activate the Brush Motor so it is only on

when the machine is moving. The farther the grips
are rotated, the faster the machine will move.

x These twist grips have a safety feature that returns

the machine to the neutral position when the
handles are released.

Battery Meter

The battery meter is located in the back of the control
column cover and has two uses. It shows the state of
charge of batteries during operation and flashes fault
codes when there is a problem with the machine.
x The rate of charge is indicated by numbers. The

higher the number the greater the charge in the
battery pack.

x When there is a fault with the machine, the Battery

Meter will flash an “F” followed by a number.

x See Trouble Shooting Chart for more

information.

Battery Charger

Master Switch

x The master switch is located on the top right side

of the control column and it turns the machine on
and off.

x If the brush switch is on and the brush head is

down or the twist grips are not in the neutral
position the machine will not turn on. A flashing
fault code will appear on the battery meter. See the
bottom of the decal on control column cover and
correct the problem.

x The control system will automatically turn the

machine off if it sets idle for 10 minutes. Turned off
the master and brush switch and then turn the
master switch back on to restart.

Hour Meter

x The hour meter is located under the Master Switch

and counts the hours the brush motor is on. The
hour meter is used for indicating maintenance
intervals. The hour meter can not be reset.

x See maintenance section for maintenance

intervals.

Fuse Holder

x The fuse holder is located under the Hour Meter. It

houses a 4 AMP fuse.

The battery charger is located on top of the battery
box cover.
x This high efficiency battery charger is designed for

onboard operation.

Key Switch

x A Key Switch is Optional and will be located above

the hour meter when installed. The key switch and
master switch will both need to be used to turn the
machine on and off.

MAINTENANCE

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ALWAYS turn OFF all machine switches
before performing any maintenance or
repairs to any equipment.

Check the tension of the Drive Chain after the
first 100 hrs of use and then every 90 days or 300
hours as needed. For the chain tightening
instructions see the maintenance section called
90 Day Maintenance (300 Hours).

Daily Maintenance

Pad Installation / Changing

Brush Switch

x The brush switch is located on the left side of the

control column and it turns the brush on and off.

x There is also a tilt switch in this circuit located

under the brush head that only allows the brush to
be turned on when the brush head is in the
operating position.

Circuit Breaker

x There is one master circuit breaker located below

the brush switch on the control column.

Brush Head

x The brush motor, Filter Bag and Flexiwall shield

are located at the front of the machine.

x The bag connects directly to the Flexiwall shield

and has a snap that retains the rear of the bag.

There is a wide range of pads available for many
different burnishing applications. Consult your local
NSS authorized distributor for application
recommendations.
x Lift the front of the machine up to the 90 degree

position to view the pad driver and pad.

x Make sure that the correct pad (7/8" to 1") X 27" is

being installed.

x Place the pad flat on the floor, and remove the

center hole of the pad, step on the center of the
pad to compress the edges around the center hole.
This allows for easier installation of the pad
centering cup.

x With the machine in the pad changing position,

carefully center the pad on the driver.

Caution: Pads must be installed concentric (evenly
aligned) with the outside edge of the pad driver.
Failure to follow these precautions will cause
excessive machine vibration, a reduction in pad life
and produce unsatisfactory burnishing results.
x Place the pad grabber in the center hole of the

pad.

x Holding the pad driver and pad, push on the pad

grabber until the spring clip has clicked twice.

Caution: Failure to install the pad grabber tightly
may allow the pad to be thrown from the driver.

Daily Maintenance (continued)

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x Empty the filter bag daily or when it is

approximately one-half (1/2) full.

Charging Batteries

x Check and verify that all battery connections are

clean and tight.

x Wipe machine down with a damp cloth.
x NEVER spray this machine with water or any

liquids.

x ALWAYS Check the tilt switch for proper

operation. With the master switch turned off, put
the brush head into the pad change position. Turn
the brush switch on then the master switch on, the
machine should turn on.

x If the machine does not turn on and the battery

meter is flashing a one, the tilt switch has failed.
DO NOT use the machine until the tilt switch has
been replaced.

Weekly Maintenance
(Every 25 Hours)

Verify all daily maintenance has been performed.

x Recharge the batteries when indicated by the

Battery Meter.

x Check charger cord for exposed wires and

damaged plugs before using.

x To recharge the batteries plug the charger cord into

the charger located on top of the machine and then
into an electrical outlet.

x When the cord is plugged into an outlet the

machine will automatically become disabled.

x Charge the batteries with the cover open when

possible to reduce heat build up in the batteries.

x See charging instructions for more details.

x ALWAYS wear eye protection, rubber gloves and

protective clothing to avoid contact with battery
acid when working around batteries.

x After charging batteries check the water level of

each battery cell and add distilled water as
required to level specified by battery manufacturer.

x Inspect the Flexiwall Shield for dents around the

outside edge and cracks in the plastic.

x Check that the Brush and Retaining Band are

properly installed.

x Remove dirt build up on the brush along the

bottom of the Flexiwall Shield.

x A damaged Flexiwall Shield Assembly will greatly

reduce dust control capabilities of the machine.

Monthly Maintenance
(Every 100 Hours)

Verify that all daily and weekly maintenance has
been performed.

x Check the Battery Tray Drain Hose for liquid level

on a monthly basis.

x Spilled liquids from the battery compartment area

are collected in a tray under the batteries. The tray
can be drained using the hose at the right rear of
the machine as shown above.

x IMPORTANT: Drain all liquids into an approved

container and dispose of according to your local
EPA regulations.

x Inspect the machine components for wear, loose

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fasteners, or damage. Pay special attention to all
pivot points and moving parts.

x Call an authorized NSS service center for repairs.

90 Day Maintenance
(Every 300 Hours)

Verify that all daily, weekly and monthly
maintenance has been performed.

Tighten Chain

x Check the tension on the drive motor chain. If the

chain has more than ½” deflection, tighten as
needed.

x Access too the bolts for the drive motor are on the

left side of the machine. There are two bolts on top
which are accessed through the holes as shown in
the picture above. There are also two bolts located
below the frame. A total of four bolts.

Lubrication

x Lubricate the drive wheel bearings with an

industrial grade bearing grease. The zerk fittings
on the bearings can be accessed from the front of
the machine.

x Failure to lubricate drive wheel bearings will cause

the machine to maneuver with difficulty and
premature failure of the bearings will result.

x Lube the drive motor chain with a small amount of

grease using a brush. A chain spray can also be
used.

x NEVER use your fingers to put the lube on the

chain. Serious injury may occur.

x Lubricate the casters with an industrial grade

bearing grease. Failure to lubricate casters will
cause the machine to maneuver with difficulty and
premature failure of the caster will result.

x Lubricate all moving parts as required with a small

amount of grease.

x DO NOT lubricate the Gas Spring shaft, it does not

require lubrication as it is self lubricating.

Every 6 Months

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(Every 600 Hours)

Call your Authorized NSS Distributor / Service
Station to have the following services performed.

Verify that all daily, weekly, monthly and quarterly
maintenance has been performed.

Inspect Brush Motor carbon brushes for wear.

x Using compressed air, blow the accumulated

carbon brush dust out of the motor.

x Replace carbon brush when they measure ½” or

less in length.

x Failure to replace carbon brushes will cause poor

machine performance and possible motor damage.

Check the condition of the batteries.

x A battery may be checked using a Hydrometer to

check the specific gravity (strength) of the acid in
each cell. Variations in readings occur due to the
chemical reaction taking place during use.

x Always check the specific gravity when the battery

is fully charged.

x Replace batteries as needed.

Battery Installation:

x Turn off all switches. Disconnect battery pack from

the machine.

x ALWAYS wear eye protection, rubber gloves and

protective clothing to avoid contact with battery
acid when installing batteries. See Battery
Warnings on page 2.

x Remove the side panel and top cover. There are

two bolts (one in each corner) on top of the side
panel and two nuts (one in each corner) at the
bottom of the cover. Note that the nuts at the
bottom are not visible from the side.

x The cover will still be attached to the side panel.

Move them out of the way to install the Batteries.

x Batteries are heavy – ALWAYS use two people to

install batteries into machine.

x Refer to wiring diagram located on the under side

of the cover. Align batteries in compartment the
same as the old batteries or as shown on diagram.

x Install battery cables the same as they were on the

old batteries or as shown on wiring diagram
located on the under side of the cover.

x NSS recommend s replacing the battery cables

when replacing batteries.

x Tighten bolts and hex nuts with a wrench.
x Install terminal boots over terminals to complete

installation.
CAUTION: Do not short across two terminals with a
wrench.
CAUTION: Loose or improper battery connections
will cause battery or machine damage and possible
personal injury.

Every 12 Months

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(Every 1200 Hours)

Call your Authorized NSS distributor / Service
Station to have the following services performed.
Verify that all daily, weekly, monthly and quarterly
maintenance has been performed.

Inspect Drive Motor carbon brushes for wear.

x This will require removing the drive motor from the

machine and should only be done by an authorized
NSS Service Station.

x Using compressed air, blow the accumulated

carbon brush dust out of the motor.

x Replace carbon brush when they measure ½” or

less in length.

x Failure to replace carbon brushes will cause poor

machine performance and possible motor damage.

Gas Spring Service

x Place one end of the gas spring against a hard

surface and push on it. If you can compress it, it

must be replaced. If you can not compress it, it is

most likely OK.

Pad Pressure Adjustment

The NSS Charger 2717 DB is preset at the factory
for medium duty applications. It can be tuned to
your specific application for optimum
performance.

ONLY an authorized NSS Service Station should
perform this adjustment.

ALWAYS secure Brush Head in the pad change
position using the strap provided before
attempting any maintenance or repairs to the gas
spring or coil spring assemblies.

x Remove the spring clip that secures the gas spring

to the machine. Then pull the gas spring off of the
ball stud. There is a clip and ball stud at each end.

x The pad pressure can be adjusted by moving the

set collars on the spring guides. There is one

spring guide on each side of the machine.
x This must be done with the machine in the pad

changing position when there is no pressure on the

springs.
x The factory setting for the set collars is 7/8” to

15/16” as shown above.
x Moving the collars toward the front of the machine

to 13/16” will increase the pad pressure. Moving

the collars away from the front of the machine to

15/16” or 1” will decrease the pad pressure. Both

sides must be adjusted to the same setting.
x Move the collars 1/32” to 1/16” at a time. A small

amount of adjustment will make a large difference

in machine performance.

Battery charger

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Operating instructions

1. Connect charger power cord to a properly grounded
outlet. When using an extension cord, avoid excessive
voltage drop and extended charge times by using a
grounded 3-wire 12 AWG cord for 50’ lengths or
shorter and 10AWG for greater than 50’ lengths.

2. If a minimum battery voltage is not detected, a trickle
current will be applied until a minimum voltage is
reached.

3. Once a minimum battery voltage is detected, the
charger will enter the bulk charging constant-current
stage. The current bar graph will indicate the current to
the battery as the charger moves through its charge
profile. The length of charge time will vary by how
large and how depleted the battery pack is.

4. When the yellow 80% LED is lit, the charger has
completed the bulk stage of the charge and the battery
is at approximately 80% of charge. The charging could
be terminated at this point if the machine requires
immediate usage, however, it is highly recommended
to wait until the green 100% charge LED illuminates to
ensure maximum battery capacity and battery life.

5. When the green 100% LED is continuously on, the
batteries are completely charged. The charger may
now be unplugged from AC power (always pull on
plug and not cord to reduce risk of damage to the
cord). If left plugged in, the charger will automatically
restart a complete charge cycle if the battery pack
voltage drops on average below 2.1 volts-per-cell or
30 days has elapsed.

6. If a fault occurred anytime during charging, the red
FAULT LED will flash with a code corresponding to
the error. To indicate which error, the FAULT LED
will flash a number of times at a rate of two times per
second, pause 0.5 seconds, then repeat.
[1 FLASH] Battery Voltage High: auto-recover
[2 FLASH] Battery Voltage Low: auto-recover
[3 FLASH] Charge Timeout: the charge did not
complete in the allowed time. This may indicate a
problem with the battery pack (voltage not attaining
the required level), or that the charger output was
reduced due to high ambient temperatures.
[4 FLASH] Check Battery: the battery pack could
not be trickle charged up to the minimum level
required for the charge to be started. This may
indicate that one or more cells in the battery pack
are shorted or damaged.
[5 FLASH] Over-Temperature: auto-recover.
Charger has shutdown due to high internal
temperature. Charger will restart and charge to
completion if temperature comes within accepted
limits, but the fault LED indication will remain until
the charger has been reset (AC removed).
[6 FLASH] QuiQ Fault: an internal fault has been
detected. If Fault 6 is again displayed after
interrupting AC power for at least 10 seconds, the
charger must be brought to a qualified service depot.

Battery Maintenance Instructions

1. For flooded lead-acid batteries, regularly check
water levels of each battery cell after charging and
add water as required to level specified by battery
manufacturer. Follow the safety instructions
recommended by the battery manufacturer.

2. Make sure charger connections to battery
terminals are tight and clean.

3. Do not expose charger to oil or to direct heavy
water spraying when cleaning machine.

DC Battery Connection Procedure:

1. The green wire outputs a battery voltage when
the charger is not plugged in to AC to provide an
Interlock function.

2. Securely fasten the black ring terminal from the
charger to the negative terminal ("-", "NEG",
NEGATIVE") of the battery pack.

3. Select Charge Algorithm if battery type is other
than factory default.

Check / Change Charging Algorithm:

The charger comes pre-loaded with nine algorithms
for Lead Acid batteries as detailed in Table 1. Each
time AC power is applied with the battery pack NOT
connected, the charger enters an algorithm
select/display mode for approximately 11 seconds ­this is the only time the algorithm can be changed. In
this mode, the present algorithm is displayed on the
LED bar graph or 80% LED as shown in Table 1.
If the algorithm # is from one to six, it will be
displayed on the bar graph with the lowest LED
indicating that Algorithm 1 is selected; the second
lowest LED indicates that Algorithm 2 is selected, etc.
For all algorithm #’s, the algorithm number is also
indicated on the 80% LED by the number of blinks
separated by a pause. ** Note- algorithms 7-9 are

indicated only with the 80% LED indication - no bar
graph indication is given.

Check or change the charging algorithm:

a. Disconnect the positive connector from battery

pack. Apply AC power and after an up/down flash
of the LEDs, the algorithm # will display for 11
seconds.

b. To change algorithm, touch connector during the

11-second display period to the battery pack’s
positive terminal for 3 seconds and then remove­the algorithm # will advance after 3 seconds.
Repeat until desired algorithm # is displayed. A 30
second timeout is extended for every increment.
Incrementing beyond algorithm 9 moves back to
algorithm 1.

c. After desired algorithm is displayed, touch the

charger connector to the battery positive until the
output relay is heard to click (~10 seconds)­algorithm is now in permanent memory.

d. Remove AC power from the charger and

reconnect the charger positive connector to the
battery pack. It is highly recommended to check a
newly changed algorithm by repeating the above
steps a) and c).

TABLE 1

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Delta-Q Battery Charger - Battery Types

NSS Part

Number

4491061 1-1470 12 36 210 # 1
3390361 1-1435 6 24 & 36 225 # 1
2392111 1-1427 12 24 115 # 5

6393651 1-1428 12 24 145 # 5
2392731** 1-12145 12 24 100 # 6
6491931** 1-1437 6 24 & 36 180 # 6

2691501 1-1450 6 36 325 # 27

7691401 1-1460 6 36 395 Not Recommended

Problem Cause Solution

Machine will not turn on.

Brush motor will not run
or stopped running.

Brush motor will not turn
off when handles are in
neutral position.

Machine vibrates.

Short run time on battery
charge.

Battery charger will not
turn on.

Pad will not stay in the
pad change position.

Pad will turn on in the
pad changing position.

Circuit breaker trips.

Crown

Part

Number

Battery pack is not plugged into machine.
Battery charger is plugged into AC outlet. Unplug the battery charger.

The 4 amp fuse is missing or blown. Replace 4 amp fuse.
Circuit breaker is tripped. Reset circuit breaker.

Current over load of brush motor has exceeded
set parameters in control system.

Tilt switch failure.

Carbon Brushes worn or not making contact.

The potentiometer is set on the threshold of
neutral or potentiometer has failed.

Pad not centered or torn. Center pad. Change torn and worn pad.
Pad driver damaged and/or out of balance.

Bad battery or battery pack.
Incorrect Algorithm setting in battery charger for

battery pack installed in machine.
Battery charger cord damaged.
Connection not made between battery charger

and battery pack.

The battery charger is damaged.

Weak or missing gas spring(s). Check and replace if necessary.

Tilt switch failure.
Spray Buffing. DO NOT spray buff.
Pad pressure to heavy.

Pad pressure collars out of adjustment.

Volts

Battery

TROUBLE SHOOTING CHART

System

Volts

Amp

Recommended Algorithm

Hour

Open the battery cover and plug the battery
pack into the machine.

Turn off all switches and then turn on the
master switch to reset the control system. If the
problem continues check battery meter for fault
code F42.

Check tilt switch operation. Replace tilt switch if
test failed.

Have an authorized NSS Service Station check
carbon brushes and replace if necessary.

Have an authorized NSS Service Station reset
the potentiometer to neutral or replace.

Check pad driver for damage and replace if
necessary.

Have an authorized NSS Service Station check
the batteries and replace as necessary.

Check Algorithm setting in battery charger and
change if necessary.

Check for cord damage and replace if
necessary. DO NOT try to repair it.

Check connections at battery pack for corrosion
and loose or broken wires.

Have an authorized NSS Service Station check
and replace if necessary. DO NOT try to repair
it.

See daily maintenance for proper checking
procedure. Replace tilt switch as necessary.

Check gas springs for failure and replace as
necessary.

Readjust pad pressure collars as required by
your burnishing conditions.

Problem Cause Solution

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Front of machine does
not move down to the
floor when turned on.

Flashing number 1
appears in battery
meter.

Flashing letter A
appears in battery
meter.

Fault code F12 appears
in battery meter.

Fault code F23 appears
in battery meter.

Fault code F26 appears
in battery meter.

TROUBLE SHOOTING CHART CONTINUED

Spring guides sticking in slides.

Brush motor circuit closed when machine is
turned on.

Twist grip not in neutral when master switch is
turned on. Potentiometer not set properly in
neutral position.

Internal programmable parameter data is
corrupt.

Internal temperature of controller has exceeded
the set parameters.

Precharge failure when controller is turned on or
the control system has been miswired causing
an internal controller failure.

Check spring guides for proper operation.
Replace if bent. Lubricate if necessary. Loosen
bolts in spring guide mounting bracket, it will
self align, retighten bolts.

Turn off brush switch. Check tilt switch for
proper operation.

Let go of twist grip. Have an authorized NSS
Service Station reset the potentiometer to
neutral or replace.

Turn machine off and then on. If problem
continues call for service.

Turn machine off and let control system cool off.
If problem continues call for service.

Turn machine off and then on. If problem
continues call for service.

Fault code F29 appears
in battery meter.

Fault code F32 appears
in battery meter.

Fault code F37 appears
in battery meter.

Fault code F42 appears
in battery meter.

Fault code
F44/F4C/F45/F59/F60
appears in battery
meter.

Fault code F4D/F46/F61
appears in battery
meter.

Fault code F58 appears
in battery meter.

Fault code F62 appears
in battery meter.

Fault code F63 appears
in battery meter.

Internal control system failure.

Internal control system failure.

Internal control system failure.

The brush motor is exceeding the current limit
set in the controller.

Caused by wiring short circuit in drive wiring or
shorted drive motor.

Caused by wiring short circuit in brush wiring or
shorted brush motor.

The deceleration of the brush motor or drive
motor exceeded set parameters. Example:
Tried to slow down or stop on too steep a hill.

Internal control system failure.

Caused by wiring short circuit in contactor
wiring or contactor coil.

Turn machine off and then on. If problem
continues call for service.

Turn machine off and then on. If problem
continues call for service.

Turn machine off and then on. If problem
continues call for service.

Check the gas springs for wear. Check the
brush pressure set collars for proper
adjustment. Check pad driver and Flexiwall
shield for proper installation and problems. Turn
machine off and then on. If problem continues
call for service.

Check wiring and drive motor for short circuit.
Correct problem if found. If problem continues
call authorized NSS Service Station for service.

Check wiring and brush motor for short circuit.
Correct problem if found. If problem continues
call for service.

Turn machine off and then on. If problem
continues call authorized NSS Service Station
for service.

Turn machine off and then on. If problem
continues call for service.

Check wiring and contactor for short circuit.
Correct problem if found. If problem continues
call for service.

Repairs performed by an unauthorized company will void the machine warranty.
If

ou require assistance finding an authorized service center, contact NSS Enterprises.

NSS® Enterprises, Inc.

3115 Frenchmens Road, Toledo, Ohio 43607
PHONE [phone] FAX [phone]

NSS ® Enterprises, Inc. European Distribution Centre

Unit II, Pinfold Trading Estate * 55 Nottingham Road
STAPLEFORD, NOTTINGHAM NG9 8AD ENGLAND U.K.
PHONE: [phone] * FAX: [phone]