NSS WRANGLER 2730 User manual

OPERATION MANUAL
2730 WRANGLER 3330
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.).
WARNING: Fire or explosion hazard.
NEVER attempt to pick up flammable
or combustible materials or use such
materials in tank.
INTENDED USE
This machine is designed for scrubbing floors in an
indoor environment. NSS does not recommend
using this machine for any other purpose.
FOR SAFETY:
• ALWAYS read and understand all instructions before
operating or servicing machine.
• ALWAYS use this machine ONLY as described in this
manual.
• NEVER attempt to operate this machine unless you
have been trained in its operation.
• NEVER allow an untrained person to operate this
machine.
• NEVER attempt to operate this machine if it is not
working properly or has been damaged in any manner.
• NEVER disconnect or modify any switches or safety
devices (circuit breaker).
• NEVER drop or insert any object into any machine
opening.
• NEVER operate this machine with any air opening
blocked. Keep all air openings free of dust, lint, hair,
etc.
• NEVER pick up anything that is burning or smoking,
such as cigarettes, matches or hot ashes.
• NEVER spray this machine with water or any liquids.
• NEVER allow the vacuum motor or battery charging
plug to get wet or a short may occur.
• NEVER operate this machine when the battery charger
is plugged in.
• NEVER operate this machine with the side skirt
removed.
• NEVER allow this machine to be used as a toy. Close
attention is necessary when used by or near children.
• ALWAYS wear clean tennis shoes or “non-slip”
shoes. Leather soled shoes will become extremely
slippery when wet.
• ALWAYS keep face, fingers, hair or any other body
part or loose clothing away from any machine
opening or moving part (revolving brush, pad driver,
or vacuum motor).
• ALWAYS turn the machine off when attaching pads
or brushes.
• ALWAYS remove keys when this machine is left
unattended.
• ALWAYS be sure that the ramp is secured to the
vehicle before attempting to load / unload.
• 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.
• NEVER stop or turn the machine on a ramp or
incline.
• NEVER attempt to climb a grade or operate this
machine on a ramp or incline of more than
8 degrees.
• NEVER park or store the machine near a dock, on
ramps, near a furnace, boiler, open flame, or other
high heat source.
• NEVER allow this machine to freeze.
• NEVER expose the machine to rain, snow, or
extreme temperatures.
• NEVER store any items on this machine.
• ALWAYS store this machine indoors in a dry, cool
area.
ALL REPAIR SERVICE MUST BE PERFORMED BY AN NSS AUTHORIZED DISTRIBUTOR/
SERVICE STATION USING ONLY NSS ORIGINAL EQUIPMENT PARTS.
SAVE THESE INSTRUCTIONS
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SAVE THESE INSTRUCTIONS
IMPORTANT SAFETY INSTRUCTIONS
BATTERY POWERED EQUIPMENT
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.
Contains acid.
Avoid contact.
Poison. Causes severe
burns. Avoid contact.
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
• ALWAYS read and understand all
instructions before installing or charging
batteries.
• NEVER attempt to install or charge batteries
unless you have been trained to do so.
• NEVER allow an untrained person to install or
charge batteries.
• ALWAYS remove all jewelry when working on
or near the batteries.
• ALWAYS turn off all switches during
installation and service.
• ALWAYS disconnect the battery leads before
performing any service or repair.
• ALWAYS wear eye protection and protective
clothing to avoid contact with battery acid.
• NEVER lay anything on top of batteries as
arcing may occur.
• IF CONTACT WITH BATTERY ACID
OCCURS, follow these instructions:
• SKIN – rinse area with water.
• EYES – Flush with water for 15 minutes.
• INTERNAL – Drink water or milk. Follow with
Milk of Magnesia, beaten egg or vegetable
oil. Call a physician immediately.
BATTERY INSTALLATION
• ALWAYS use two people to install, as batteries are heavy.
• ALWAYS turn off all machine switches.
• ALWAYS position batteries as shown on the machine
installation decal to maintain machine balance.
• ALWAYS connect batteries as shown on the machine
installation decal to avoid shorting out the batteries and
the electrical system.
BATTERY CHARGING
• ALWAYS read instructions on charger carefully.
• ALWAYS use the NSS supplied charger with proper
voltage rating.
• ALWAYS check to ensure the battery water level covers
the battery plates before charging.
• ALWAYS check water level after charging and add water
if necessary to bring level to the bottom of the fill hole.
• NEVER
overfill batteries as battery
and machine damage may result.
• ALWAYS wipe any acid from the top
of batteries using a soap solution.
• ALWAYS reattach caps to batteries. Do not charge with
caps loose or removed.
• ADD only distilled or treated city water. Not well water.
ALL REPAIR SERVICE MUST BE PERFORMED BY AN NSS AUTHORIZED DISTRIBUTOR/
SERVICE STATION USING ONLY NSS ORIGINAL EQUIPMENT PARTS.
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3
NOISE AND VIBRATION
MACHINE INSPECTION
• Now that the machine is unpacked remember to
recycle all packing materials.
• Inspect the machine for damage or missing
components. If damage is found, contact the local
freight company to file a freight claim.
MACHINE COMPONENTS
Solution Tank
The solution tank is the lower part of the machine body.
It has a capacity of 30 gallons (114 liters).
• To fill the tank pour the water and cleaning chemicals
through the filter that covers the opening at the front
of the tank, or you may use the hose holder cutout.
• The amount of water in the tank is measured by
the solution gage in the clear plastic tube at the right
rear corner of the tank.
• The solution tank is emptied through the clear plastic
tube at the right rear corner of the tank.
Recovery Tank
The recovery tank is the upper part of the machine
body. It has a capacity of 33 gallons (125 liters).
• A round clearview lid assembly closes off the
recovery tank’s opening.
• The recovery tank has a foam sensitive float shut-off
assembly. As the water level rises, the float ball will
rise into the tube and shut off the airflow of the
vacuum.
• The float shut-off assembly does not shut off the
vacuum motor.
• The recovery tank is emptied through a large rubber
hose at the front of the machine. Remove the plug
and drain the liquids according to your local EPA
regulations.
Operator Control Panel
The operator control panel is located at the upper rear
area of the machine. This panel has components that
control various machine functions.
• In the middle of the panel are two (2) rubber twist
grips. These grips rotate forward and backward to
control the direction and speed of the machine. The
farther the grips are rotated, the faster the machine
will move. These twist grips have a “dead man”
feature that returns the machine to the neutral
position when the handles are released.
• The left toggle switch turns on and off the vacuum
motor.
• The round red button in the center is the master
power switch; it controls the power to all
components. Power on is indicated by the green
light.
• Lower the brush lever, located at the right rear of the
machine, to turn on the brush motors.
• Power Deck Lift Option. The first switch left of
center sets the deck position to Float or Heavy. Set
position switch while deck is in the up position. The
center left switch raises and lowers the deck, the lift
is off when in the middle position.
• Key Switch Option. Turns all components off / on.
Battery Meter
The battery meter is located on the right side of the
operator control panel and shows the state of charge of
batteries during operation and recharge.
• Work Range - This is the green area in the middle of
the meter. It shows the approximate amount of
“power” available in the batteries. Observe this
reading when operating the Wrangler.
• Recharge Range - This is the red area on the left of
the meter. It shows when the batteries need to be
recharged. Continued machine operation in this
area will cause battery damage and potential
machine damage.
Rear Panel
• The solution control lever is located on the left of the
rear panel. This lever controls the solution valve
and the amount of liquids put on the floor while
cleaning. Pull up on the handle to open the valve.
Push down on the handle to close the valve. Water
will not flow until the brush motor is turning.
• The top circuit breaker is for the drive motor and is
rated at 25 amps.
• The next circuit breaker is for the vacuum motor and
is rated at 25 amps.
• The next two circuit breakers are for the brush
motors and each is rated at 25 amps.
• The bottom circuit breaker is for the power deck lift
option and is rated at 2 amps.
• The right lift arm is used to raise and lower the
brush motor assembly. Brushes automatically turn
on when lowered.
• The center lift arm is used to raise and lower the
squeegee assembly.
Battery Compartment Drain Hose
This hose is located on the left side of the machine
inside the rear panel. The hose uses a pinch clamp to
hold the hose closed. This hose collects any spilled
liquids from the battery compartment area.
• Inspect hose for liquid level on a weekly basis.
• Dispose of liquids according to local your EPA
Regulations.
NOISE
Sound pressure level at Operator
position
72 dB(A)
VIBRATION
Weighted RMS acceleration value
(ISO 5349)
.367 m/s2
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4
Battery Charging
For Machines with independent chargers:
• The charging plug is located on the left side of the
rear panel.
• To recharge the batteries raise the charge plug cover
and install the battery charger plug into the charging
plug. The charge plug cover prevents the machine
from moving while charging.
• This plug is gray on 36-volt machines.
• See charging instructions for more details.
For Machines with On Board Chargers:
• To recharge the batteries plug the charger cord,
located at the rear of the machine, into an electrical
outlet.
• When the cord is plugged into an outlet the machine
is currently disabled.
• See charging instructions for more details.
Solution Filter Assembly
Attached to the outlet fitting of the solution tank is a
filter. It is designed to stop debris from entering the
solution valve.
If the water and chemical stops flowing during
operation:
• Open the fitting (by hand), remove and clean the
screen.
• Replace the screen and close fitting (by hand).
Check for any liquid leaks.
Solution Solenoid
Attached to the top of the brush deck is a solenoid valve
designed to stop solution flow when the machine is not
moving.
If the water and chemical stops flowing:
• Check battery charge and charge as required.
• Check manual lever.
Drive Motor
This machine is powered forward and reverse by a
36-volt drive motor.
• The speed is electronically controlled for smooth
increase and decrease of speed.
• The motor moves the drive wheels through a chain
and sprocket system.
• This motor has carbon brushes that must be serviced
on a regular basis. The carbon brushes have an
expected life of 2,000 operating hours. Refer to the
maintenance section later in this book.
Brush Gear Motor
This machine has two (2) 36-volt brush motors located
at the front of the machine. The motors are attached to
a gearbox to turn the pad drivers or brushes.
• The left motor rotates clockwise.
• The right motor rotates counterclockwise.
• These motors have carbon brushes that must be
serviced on a regular basis. The carbon brushes
have an expected life of 2,000 operating hours.
Refer to the maintenance section later in this book.
Vacuum Motor
This machine has a 36-volt vacuum motor.
• The vacuum motor is attached to the underside of
the top tank.
• This motor has carbon brushes that must be serviced
on a regular basis. The carbon brushes have a
maximum expected life of 700 operating hours.
Refer to the maintenance section later in this book.
Squeegee Assembly
The Wrangler 2730 or 3330 may use a dual (2)
urethane blade system to recover liquids from the floor.
• The squeegee assembly has a wide, flat frame to
help prevent damage, two (2) mounting knobs and
two (2) small wheels to prevent “rollover” while in
reverse.
• The squeegee assembly mounts to a metal bracket
at the bottom center of the machine.
The Wrangler 2730 or 3330 may be equipped with an
optional “curved” heavy-duty squeegee assembly.
This system has gum rubber or Linatex rear blades
and neoprene front blades.
Side Skirt Assemblies
This machine is equipped with left and right side skirt
assemblies.
• The side skirt assemblies are designed to contain the
liquids in the cleaning area under the machine, they
channel the liquids toward the squeegee, and
prevent splashing on the outside of the machine.
• The side skirt assemblies attach to the front of the
machine with retaining pins and are secured with a
retaining latch.
Battery Packages
The Wrangler 2730 or 3330 is a 36 volt system and is
available with three battery packages:
• Six (6) 6 volt, 225 Amp Hour Batteries.
• Six (6) 6 volt, 325 Amp Hour Batteries.
• Six (6) 6 volt, 395 Amp Hour Batteries.
Consult your local NSS authorized distributor for
application recommendations.
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5
MACHINE OPERATION
General Information
The Wrangler 2730 and 3330 are very maneuverable
and are designed to scrub floors as you operate the
machine from behind.
Preparing the machine for use
Install the Batteries:
• Turn off all switches and tilt the recovery tank open to
expose the battery compartment.
• Batteries are heavy - use two people to install.
• Refer the to wiring diagram inside the battery
compartment. Align batteries in the compartment as
shown on the diagram.
• Install battery cables as shown on the wiring diagram.
• Tighten bolts and hex nuts with a wrench.
Caution: Do not short across two terminals with a
wrench.
• Loose or improper battery connections will cause
battery or machine damage and possible personal
injury.
Prepare the Solution Tank:
• Never use water over 140°F (60°C) degrees.
Excessively hot water may damage components
such as the tanks.
• Pour all liquids through the mesh filter at the front of
the solution tank, or use a hose and the hose holder
cut out.
• Put 1 to 2 gallons of clean water into the solution tank
first to help dilute the chemicals and prevent excess
sudsing.
• Consult your local distributor for complete chemical
advice. Dilute the cleaning chemicals according to
the manufacturer’s instructions.
• Add the cleaning chemicals to the solution tank and
fill with water as needed.
Prepare the Recovery Tank:
• Make sure the drain plug of the recovery tank is
closed tightly and in its holding clip.
• Always use a defoamer to protect the vacuum motor.
• Every time you empty the recovery tank, we
recommend that you add at least 4 to 6 ounces of
defoamer chemical into the recovery tank before
resuming work. Vacuum the defoamer into the empty
recovery tank through the squeegee vac hose.
Install a Pad Driver and Pad:
• There is a wide range of pads or brushes available
for the many cleaning applications of this machine.
Consult your local NSS authorized distributor for
application recommendations.
• Turn the pad drivers upside down on the floor and
remove the pad holding cup.
• Remove the center cutout of the 14" (35.5 cm.) pad
(Wrangler 2730), or the 17” (43 cm) pad (Wrangler
3330). Place the pad on the face of the pad driver.
• The pad must be centered concentric on the driver to
prevent wobbling or bouncing.
• Install and secure the pad holding cup to the pad
driver. Turn the pad driver over so that the pad
faces the floor.
• Raise the brush motors into the transport position.
• Align the lugs of the pad driver with the slots of the
drive casting.
• Turn the lugs of the pad driver toward the latch;
close the latch around the lugs to lock them onto the
drive casting.
Install a Brush:
• Raise the brush motors into the transport position.
• Align the lugs of the brush with the slots on the drive
casting.
• Turn the lugs of the brush toward the latch; close the
latch around the lugs to lock onto the drive casting.
Install the Squeegee Assembly:
• Place the squeegee lift arm in the storage (up)
position.
• Loosen the two mounting knobs and slide the
squeegee assembly onto the mounting plate.
• The roller wheels must face the operator. Hand
tighten the mounting knobs. Do not use pliers to
tighten knobs, as this will defeat the “break-away”
design.
Squeegee arms keep the squeegee parallel to the
floor. As the blades wear adjustment should not be
required. For first time adjustment see “Adjusting the
Squeegee assembly”.
Install the Side Skirts:
• Position the skirts at the left / right side of the
machine.
• Remove the skirt retaining pins from the mounting
bracket.
• Align the side skirt holes with mounting bracket
holes, insert and secure retaining pins. Close side
skirts around machine and secure with skirt latch.
The side skirt wiper blades will naturally wear with use
and require adjustment or replacement. To adjust the
skirts see “Adjusting the side skirts”.
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6
Operating the Machine
The Wrangler 2730 has the brush motors offset to the
right side of the machine. This offset allows you to
clean the edge of the floor or obstructed areas (walls or
shelving) with the right side of the machine. The 3330
has the brush motors centered but the offset feature is
part of the skirt design.
Before Use
• Remove as many obstacles as possible from the area
to be scrubbed.
• Always sweep and dust mop the floor to remove dirt
and debris before scrubbing. Accumulations of dirt or
debris on the floor will reduce cleaning performance.
• You may also need to preclean some types of spills
or stains before scrubbing.
• Plan your work so that you make long, straight paths
with the fewest amount of turns possible, overlapping
each cleaning path about 2 in. (5 cm.) to prevent
streaking and dirty areas.
Normal Cleaning
• Fill solution tank as directed.
• Put defoamer chemical in recovery tank.
• Install pad drivers / pads or brushes.
• Close and secure side skirts.
• Install squeegee assembly.
• Move machine to area to be cleaned.
• Place warning signs “Wet Floor” in area.
• Turn on master switch.
• Turn on vacuum motor switch.
• Lower the brush motors and squeegee assembly into
the operating position on the floor. Brush motors will
automatically turn on when lowered and moving in
forward or reverse.
• Twist the handle grips forward (away from you) to
move forward. Twist handles grips backward (toward
you) to move backward.
• Lift solution valve handle to start liquid flow to floor.
Adjust amount of flow as needed. Close the solution
valve completely 10 ft. (3m.) before turning at the end
of each cleaning path. This reduces the amount of
liquid on the floor when you make the turn.
• Reopen the solution valve when you have started
your next cleaning path. Repeat this procedure on
each path.
• NOTE: Solution will not flow until brushes turn on.
• Watch the level of liquid in the recovery tank and
listen for the float shut-off to change of the sound of
the vacuum motor. When the vacuum airflow stops,
you must turn off the vacuum motor, and empty the
recovery tank.
• Take the machine to an approved disposal drain and
turn off all switches.
• Raise the rubber flap at the front of the machine and
pull out the flexible rubber drain hose. Raise the end
of the hose above the level of the recovery tank,
loosen and remove the hose drain plug. Carefully
lower and direct the drain hose into the drain.
• When the recovery tank is empty, replace and
tighten the drain plug. Place the drain hose back
into the machine and secure the plug end in the
clamp. Do not obstruct the lift mechanism or brush
motors.
• Resume cleaning operation.
• Refill solution tank and empty recovery tank as
needed.
• When cleaning is complete, return the machine to
the storage area and perform daily maintenance.
Special Cleaning
This machine may be used to perform special cleaning
jobs other than “normal” scrubbing.
• Double Scrubbing - This procedure provides deeper
cleaning on heavily soiled floors. One or more
cleaning passes are made before picking up the
chemicals with the squeegee. This allows dwell
time. Best results are achieved by placing the brush
motors in the heavy scrub position.
Caution: The floor surface becomes extremely
slippery in this operation. This machine should be
operated only in slow to medium speed and great
care should be taken when walking on this wet
surface.
• Stripping - This procedure is used to remove
moderate build-up of floor finish from the floor. The
most aggressive pads or grit brushes are used in
this procedure.
• The stripper solution is applied to the floor with a
mop and then double scrubbed as above. Stripping
solution should not be put into the solution tank.
Clean water from the solution tank is applied to the
floor to keep the chemicals and finish in a “liquid”
condition. The floor surface becomes extremely
slippery in this operation. This machine should be
operated only in slow to medium speed and great
care should be taken when walking on this wet
surface.
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7
MACHINE MAINTENANCE
Routine maintenance is critical to ensure proper
machine operation and cleaning performance. Perform
all maintenance procedures as follows.
Always turn OFF all machine switches before
performing any maintenance.
Adjust the Squeegee Assembly:
• Turn the vacuum motor ON and open the water valve
slightly.
• Squeegee blades should lie over slightly (like a
window squeegee) when the machine is moving.
• If adjustment is required adjust the blade angle by
removing the rear bolt of the top squeegee arm, turn
the arm into or out of the ball joint to change the
angle as needed.
• Do not add any weights or other pressure to the
squeegee mechanism. This will not improve the
performance and will shorten the life of the blades.
Adjust Side Skirt Wiper Blades:
• Install the side skirts on the machine.
• Loosen the retaining strip screws.
• Pull down evenly on the entire length of the wiper
blade so that it firmly touches the floor.
• Tighten all screws and test run machine for splashing
under the blades.
• Do not adjust blades too low, as it will cause damage
and excessive wear to the blades.
Replace Side Skirt Wiper Blades:
• Remove the side skirt assembly from the machine.
• Remove the retaining strip and screws.
• Remove the old wiper blade and replace with a new
blade.
• Replace the retaining strip, and screws, do not
tighten.
• Pull down evenly on the entire length of wiper blade
so that it firmly touches the floor.
• Tighten all screws and test run the machine for liquid
splashing under the blades.
• Do not adjust blades too low, as it will cause damage
and excessive wear to the blades.
Daily Maintenance
Battery Charging
• The master power switch and all other switches
must be turned OFF.
• You must recharge the batteries when indicated by
the battery meter. Read the battery meter while the
machine is in use.
• Connect the battery charger plug (gray) to the
machine's charging plug at the rear of the machine.
• Connect the battery charger power cord into a
grounded A.C. outlet of the proper voltage.
• After a few seconds the amp meter (or light) will
indicate the battery charger is operating.
• If the battery charger will not start operating, check
the charging plug connections, the battery cable
connections and the battery voltage.
• If the batteries have been discharged (used) too
deeply, the battery charger will not start.
• Consult your local authorized NSS distributor or
service center for assistance.
• When the recharge cycle is complete, the battery
charger will turn off automatically. The amp meter
will register “0” or the light will be off.
• Recharge the batteries at the end of every shift or
when indicated by the battery meter.
Battery Electrolyte (Liquid) Level
Inspect the electrolyte level of at least one cell in each
battery before charging. The liquid must be visible
above the internal plates. Do not charge the batteries
if the liquid is below the plates.
• Add only water to the cell of a battery to adjust the
liquid level. Distilled water preferred, Do Not use
well water. Before charging, add only enough water
to cover the top of the internal plates. After charging
add only enough water to bring the level to the
bottom of the fill tube.
• Do not overfill the battery liquid level, this will cause
electrolyte (acid) spill. Spilled electrolyte (acid) can
cause machine damage and personal injury. Clean
up and dispose of all spills immediately.
• See the battery-warning sheet (page 2) for more
details.
• If machine is equipped with battery Auto-Fill system
fill batteries prior to charging.
Solution and Recovery Tanks
• Empty all liquids from both solution and recovery
tanks.
• Rinse both tanks with clean water to prevent
chemical residue build-up. Empty both tanks, allow
to air dry.
• Remove any residue from screen and float ball to
ensure proper operation. Replace float assembly in
recovery tank.
• Leave recovery tank clear lid open to allow tank to air
dry and prevent odors.
• Check clear lid for airtight seal.
• Check the drain hose for damage.
• Inspect and clean the vac filter located under the top
metal plate. Every 50 hours.
Pad Drivers or Brushes
• Remove either pad drivers or brushes from machine
after use.
• Rinse with clean water to prevent chemical residue
build-up.
• Allow to air-dry by installing in drying position on front
of solution tank, on a peg or upside down on a shelf.
• Inspect for wear or damage. Repair or replace as
needed.
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Squeegee Assembly
• Remove squeegee assembly from machine.
• Rinse with clean water to prevent chemical residue
build-up.
• Allow to air dry, it can be stored on top of the machine
for drying.
• Inspect the squeegee assembly, linkage, and vacuum
hose, for wear, damage or obstruction. Repair or
replace as needed.
• Remove debris from squeegee hose and entrance to
recovery tank.
Weekly Maintenance (25 Hours)
• Verify all daily maintenance has been performed.
• Check all battery terminal and cable connections.
Tighten as needed. Loose connections are
dangerous and can cause personal injury and
machine damage.
• Clean any corrosion from battery terminals and
cables.
• Drain all liquids from battery compartment. Dispose
of according to local EPA regulations.
• Check solution flow to pad drivers / brushes. Remove,
inspect and clean the solution filter assembly.
• Flush clean solution tank and hoses with a mixture of
8 oz. (250ml.) white vinegar to one-gallon (4 liter)
warm water.
• Repair or replace any worn or damaged components
as needed.
Monthly Maintenance (100 Hours)
Verify all daily and weekly maintenance has been
performed.
• Inspect vacuum motor filter under metal plate on top
of recovery tank. Clean or replace as necessary.
Check casters for wear or damage.
• Grease both pillow block bearings on the drive axle
and the caster swivel bearings. Use a hand held
grease gun and a high grade of water resistant
lithium base grease.
• Lubricate the drive chain and sprockets with a
foaming spray type lubricant. A motorcycle spray
type chain lube would be appropriate.
• Do not use your finger to apply lubricant.
• Check chain tension, and adjust as needed. Check
chain tension by squeezing the chain midway
between the sprockets. The chain should flex 1/4”
(6mm) on each side.
• Adjust chain tension by removing the chain guard and
loosening the four (4) hex bolts of the drive motor
mount. Slide the drive motor toward the drive wheel
to loosen chain. Slide drive motor away from the
drive wheel to tighten the chain. Tighten all four hex
bolts. Reinstall the chain guard.
• Inspect all mechanical linkages, pivot points and ball
joints for freedom of movement. Use a penetrating
spray lubricant that is water resistant. Do not use
WD 40 lubricant.
• Check Return Spring of the twist grip handles. If it
appear weak or does not return the twist grips to the
neutral position, replace spring.
• Inspect all fasteners (bolts, screws, nuts) at
mechanical linkages, pivot points and ball joints for
tightness. Tighten as needed.
• Clean polyethylene body components to remove
chemical and liquid residue and maintain a “like
new” appearance.
• Remove top cover plate and clean the filter. Replace
filter as required.
• Repair or replace any worn or damaged
components.
• Tighten and Lube the drive motor chain.
Mandatory Periodic Maintenance
It is mandatory that the following maintenance
procedure be performed at the described interval. This
procedure should be performed by an NSS authorized
distributor or service center. Failure to perform this
procedure may result in poor machine performance,
machine component damage and failure.
After every 450-500 hours of operation you must
inspect vacuum motor carbon brushes for wear.
Replace the vacuum motor carbon brushes when they
are 7/16in. (11mm) in length.
After every 650-700 hours of operation you
must inspect drive motor carbon brushes for wear
Replace the drive motor carbon brushes when they are
3/8in. (9mm) in length.
After every 650-700 hours of operation you must
inspect brush motor carbon brushes for wear
Replace the brush motor carbon brushes when they
are 1/2in. (13mm) in length.
Authorized Repair Service
Repair service for this machine must be performed by
an NSS authorized service center. Repairs performed
by an unauthorized company will void the machine
warranty. If you require assistance finding an
authorized service center, please contact NSS
Enterprises, Inc.
ACTIVATION OF DRY CHARGED
BATTERIES
NSS supplies some batteries in a “dry charged”
condition without any acid (electrolyte) in the battery.
The batteries cannot be used in this condition; they
must be activated by the addition of the battery acid
(electrolyte). Failure to follow this procedure will cause
severe damage to the batteries.
Materials Required
• 1.220 specific Gravity, Sulfuric Acid, to fill batteries.
• Rubber gloves and safety eye protection handling
Sulfuric acid.
• Plastic funnel to pour Sulfuric acid into batteries.
• Adjustable wrench and pliers to install battery cables.
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9
Filling Procedure
• Remove the cap from each cell of the batteries.
• Fill each cell with Sulfuric acid fully to the bottom of
the access hole.
• Allow the batteries to absorb the acid for a period of
one hour. During this time the acid level in each cell
will drop and the batteries will become warm.
• Refill each cell with Sulfuric acid to a point 1/4” (6mm)
below the bottom of the access hole.
• Replace the cap in each cell of the batteries.
• Neutralize any spilled acid with bicarbonate of soda.
Rinse the battery case clean with clean water and dry
the battery case.
• Batteries are heavy - use two people to install.
• Refer to wiring diagram inside the battery
compartment. Align batteries in compartment as
shown on diagram.
• Install battery cables as shown on wiring diagram
• Tighten bolts and hex nuts with a wrench.
• Caution: Do not short across two terminals with a
wrench.
• Loose or improper battery connections will cause
battery or machine damage and possible personal
injury.
• Connect the charger to the machine and allow it to
perform one complete charging cycle, (8 – 12 hours).
• Liquid level adjustment during the life of the batteries
should be made with distilled water or clean drinking
water.
If dry charged batteries have been filled with acid
(electrolyte) and are placed in storage, the batteries
must be recharged every 30 days to prevent damage.
OPTIONAL
BATTERY AUTO-FILL
INSTRUCTIONS
WARNING: When working with Lead-Acid batteries
and Battery Acid observe all battery manufacturers’
safety precautions.
Caution: This option is not for well water.
• Connect the regulated hose system to water supply.
Aim the purge into drain or bucket and turn on water
supply. When air is removed from the system
disconnect quick coupler by pushing the button
labeled CPC.
• Check the system for leaks by connecting the
regulated hose system quick connect to the Auto-Fill
quick connect. After connection the red balls in the
flow indicator will spin indicating water flow. When
the balls stop spinning check the system for leaks
and IMMEDIATELY disconnect the quick coupler.
• Place the dust cover over the male quick coupler on
the Auto Fill system. Turn off water supply and
remove the regulated hose system. Reinstall the
purge quick coupler and store in a safe place.
• We recommend you remove the hose swivel and
valve from one cell to check the electrolyte level
after the first fill.
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10
TROUBLE-SHOOTING
PROBLEM CAUSE SOLUTION
No Solution Flow. Solution tank is empty. Fill the tank.
Low battery charge. Charge the batteries.
Clogged filter. Clean filter.
The solution valve is closed. Open the solution valve.
Obstruction in the solution hose. Remove the obstruction.
Solution valve or linkage damaged. Repair / replace the valve linkage.
Solution hose kinked. Check for kinks and remove.
Solution Flow Does
Not Stop. Solution solenoid is damaged. Inspect wire connections and valve, repair / replace the solenoid.
Solution valve or linkage damage. Repair / replace the valve linkage.
Damaged seat and washer in valve. Replace valve.
The valve stem is dirty. Clean and lubricate valve stem.
Hose disconnected or damaged. Reinstall or replace hose.
Will Not Pick Up Any
Water From Floor. Squeegee is up. Squeegee hose is off. Lower squeegee. Reinstall hose.
Vac motor switch is off. Turn vac motor switch “on”.
Recovery tank is full. Empty tank.
Vacuum shut-off float is stuck. Clean screen and remove obstruction.
Obstruction / damage in the squeegee, Remove obstruction / repair damage.
squeegee hose or standpipe.
Leaking over gasket. Remove old gasket / replace.
Vac motor is not running. Have an authorized serviceman repair.
Recovery drain hose not plugged
properly. Install drain hose plug properly.
Will Not Pick Up All Of The
Water From The Floor. Debris on squeegee blades. Squeegee blade is worn / damaged. Clean squeegee.
Reverse / replace squeegee blade.
Obstruction / damage in the squeegee, Remove obstruction / repair damage.
squeegee hose, or standpipe.
Squeegee angle needs adjustment. Adjust angle.
Vacuum motor worn out. Repair / replace vac motor.
Recovery tank drain hose damaged. Repair / replace recovery drain hose.
Vac filter clogged. Clean vac filter under top metal plate.
Batteries Do Not Seem Over charging batteries. (Charging too Monitor run time, and adjust charging
To Run Long Enough. frequently). frequency accordingly.
Tops of batteries are dirty / wet. Clean / dry, charge batteries.
Battery terminals are dirty / damaged. Clean terminals and connectors,
replace damaged cables. Charge.
Electrolyte level is too low. Add distilled water and charge.
Batteries are not fully charged. Charge batteries for 8 hours.
Charger is damaged. Have an authorized serviceman repair.
Battery is defective or worn out. Check cell voltage while discharging.
Cleaning Is Not Even. Brush / pad is worn. Replace brush / pads.
Damage to brush assembly; casters or Have an authorized serviceman repair.
solution valve.
Hoses may be kinked or obstructed Repair / remove obstruction
Machine does not run. Battery cables loose or not connected. Check and connect or tighten.
Circuit breaker tripped. Reset circuit breaker.
Batteries not charged. Charge batteries.
Brushes will not shut off. Brush deck switch arm may be bent or
broken. Bend the arm on the switch upward, or
replace the switch.
NOTE: If any problems remain after taking the above steps, contact your local authorized
distributor / service station for further evaluation and repair.
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11
NOTES
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WRANGLER 2730 3330 Rev. B 01/04 9093317
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:
(
44
)
0115 939 1568 * FAX:
(
44
)
0115 949 0615
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