NSS Enterprises COMMANDER User manual

OPERATION MANUAL
COMMANDER
IMPORTANT SAFETY INSTRUCTIONS
WARNING: Failure to observe these instructions can cause
personal injury to machine operator or bystanders.
WARNING: Asphyxiation Hazard. An
improperly maintained engine can produce
excessive levels of carbon monoxide.
Excessive levels of carbon monoxide can
make you sick or cause death. NEVER
operate machine in an area less than 5,000
square feet for more than 15 minutes unless
there is adequate ventilation.
WARNING: Fire or explosion hazard.
NEVER use with flammable or
combustible materials, such as
gasoline, kerosene, or other fuels or
volatile solvents to clean floor.
NEVER operate this machine in an
explosive atmosphere.
INTENDED USE
This machine is intended for commercial use, for
burnishing floors in an indoor, well-ventilated
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 machine.
• NEVER attempt to operate this machine if it is not
working properly or has been damaged in any manner.
• NEVER let go of the handles when the machine is
operating.
• NEVER disconnect or modify any switches or safety
devices.
• NEVER service machine near fire or flame.
• NEVER operate this machine with any air opening
blocked. Keep all air openings free of dust, lint, hair, etc.
• NEVER allow this machine to be used as a toy. Close
attention is necessary when used by or near children.
• ALWAYS keep face, fingers, hair or any other body
part or loose clothing away from any machine
opening or moving part (revolving pad & pad driver).
• 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.
• ALWAYS turn the machine off when attaching pads.
• ALWAYS be sure that the ramp is secured to the
vehicle before attempting to load/unload.
• 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 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.
• ALWAYS store or transport LP fuel tank in the
upright position.
• ALWAYS use only tank and connections provided
with the Commander. This tank is fitted only for
vapor withdrawal, not liquid. It has safety features
(check valves, etc.) that are not found in tanks
regularly found in an LP supplier’s yard.
• NEVER fill tank with any fuels other than propane
HD-5 Spec. carburetor grade. Do not use blends or
butane.
• ALWAYS have a qualified LP dealer fill the tank.
The dealer can be found in the yellow pages under
“Gas Liquefied Petroleum”.
• NEVER store propane tank where unauthorized
personnel may tamper with it.
• NEVER alter or change the fuel system as incorrect
fuel mixture or gas leakage may result.
• ALWAYS check fuel system components and hoses
for leaks before operating.
• NEVER tip the engine on either side. Engine oil can
enter the air cleaner and cause the engine to run rich
and shut down.
• ALWAYS allow the engine time to cool before
performing any maintenance as hot parts can cause
severe burns.
ALL REPAIR SERVICE MUST BE PERFORMED BY AN NSS AUTHORIZED DISTRIBUTOR/
SERVICE STATION USING ONLY NSS ORIGINAL EQUIPMENT PARTS.
SAVE THESE INSTRUCTIONS

2
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
Engine
The Commander is equipped with an engine specially
manufactured to use LP (propane) gas as the fuel
source. The engine manufacturer and size
(displacement) may vary. Observe the name on the
engine and refer to the manual provided by the engine
manufacturer.
Fuel Tank
The Commander is equipped with a “vapor” withdrawal
type fuel tank with a fuel gauge. It is referred to as a
20 lb. (9Kg.) tank. Empty and full weights are stamped
on the side of the tank. Do not use other tanks.
Solenoid Valve and Pressure Regulator
The solenoid valve is an electrical control that stops the
flow of LP (propane) gas when the key switch is turned
off. The pressure regulator controls the amount and
pressure of the LP (propane) gas flowing to the engine.
This regulator is preset by the engine manufacturer and
is not adjustable.
Adjustments and repairs to the propane fuel system can
only be made by a properly trained, and certified
Service Technician.
Improper adjustments will cause increased toxic
emissions of carbon monoxide and may result in carbon
monoxide poisoning.
Battery
The Commander is equipped with a 12-volt
maintenance free starting battery that requires no water
additions.
A built-in engine charging system maintains the charge.
Pad Driver System
The Commander’s flexible pad driver is powered by a
single “V” belt and pulley system. An electric clutch
transfers the power of the engine to the belt and pulley
system.
Pad Driver
The Commander is equipped with a flexible pad
driver with a screw on pad holder. Use approved
hair or synthetic type pads.
Consult your local NSS authorized distributor for
more complete pad application advice.
Units with Dust Control System
Weekly, check vacuum hose connections at the
Flexiwall Shield and cloth filter bag. When the filter
bag is more than one-half (1/2) full it needs to be
emptied, remove the bag, shake out the dirt, and
replace the bag back in the machine. Inspect the
Flexiwall Shield for dents, cracks, wear, and dirt.
A damaged Flexiwall Shield will greatly reduce the
burnishing and dust control capabilities. Dirt build up
on the flexiwall shield should be removed.
Control Handles
The Commander has two (2) bicycle type handles for
the operator to control the direction of the machine.
Operating the Electric Clutch
The Commander is equipped with an electric clutch.
Move the throttle to the slow position, engage the
clutch by squeezing the “trigger switch” on the
operation handle. Move the throttle to the 3/4's
speed position, slowly lower the pad to the floor while
slowly walking forward.
Caution: Never engage the clutch with the throttle
in the fast run position, or with the pad on the floor,
this may cause damage to the clutch and the floor!
Key Switch
This machine is equipped with a 12-volt electric
starter. Below the control handle is the key switch
that turns the engine on and off.
Hour Meter
On the right side of the chassis is the hour meter.
This meter records the time (hours) that the motor is
running. This time record is very critical to the
performance of scheduled maintenance procedures.
Do not attempt to modify or disconnect this meter.
Carbon Monoxide (CO)
Various levels of carbon monoxide are present in the
exhaust gases of all internal combustion engines.
Carbon monoxide is an odorless, colorless and
tasteless gas.
WARNING:An improperly maintained engine can
produce excessive levels of carbon monoxide.
Excessive levels of carbon monoxide can make you
sick or cause death.
NOISE
Commander 20 Sound pressure level
at Operator position.
Commander 27 Sound pressure level
at Operator position.
85 dB(A)
85 dB(A)
VIBRATION
Commander 20 Weighted RMS
acceleration value (ISO 5349)
Commander 27 Weighted RMS
acceleration value (ISO 5349)
1.6 m/s2
1.95 m/s2

3
Emissions Sensor
The Commander is equipped with an emissions sensor.
It measures the level of certain emissions in the engine
exhaust. The manufacturer presets the monitor and
warning levels.
• If emissions in the exhaust gasses approach the
preset safe levels, the sensor light will signal a
warning to the operator to turn off the engine and
service the machine.
• If the operator continues to run the machine in this
condition, the sensor will shut down the engine.
• If the engine is shut down due to improper emissions
levels:
• Turn the key switch off, close the tank valve and take
the machine outside.
• Open doors and windows to increase the fresh air
oxygen (O2) levels, reducing the carbon monoxide
(CO) levels in the building.
• Check oil level, clean top precleaner, and air filter
(refer to maintenance chart)
• Contact your local NSS authorized distributor or
engine service center for assistance.
INITIAL MACHINE SET-UP
Engine
The Commander engine is shipped with oil in the
engine crankcase. Always check the oil level before
you start the engine. Use 10w30 or 15w40 motor oil
with an API designation of SG. The valve on the side of
the engine must be closed securely or oil will leak out of
the engine.
Refer to the Owners manual provided by the engine
manufacturer.
Checking Fuel Cylinder for Overfill
• Take it to a safe area outside.
• Open the fixed liquid level gauge (bleeder valve).
• Observe the gas from the valve:
If white cloud: Overfilled!
If clear vapor: Tank is not over filled
If overfilled, allow cylinder to vent until vapor is clear.
Caution: Vent gas is very cold, use gloves or pliers
when checking the fuel.
Pad Removal and Installation
• Tilt machine back on its rear casters, or in the service
position.
• Remove center-lock from pad driver.
• Remove pad from pad holder.
• Center new pad on pad driver and secure with the
center-lock ring.
Adjusting Handle Height
This machine is equipped with an adjustable handle for
comfort and use. Most find it necessary to adjust the
handle to “belt height” for optimum control.
A 9/16’s wrench is used to loosen and tighten the pivot
points.
Installing Fuel Cylinder
The Commander fuel tank is shipped empty. New
tanks need to be purged by an authorized LP
(propane) gas distributor before use.
• Keep tank upright at all times. Do not overfill tank.
• The fuel tank must be filled with the proper type
(HD-5) and amount of LP (propane) gas.
• Take machine to a well-ventilated area.
• Install cylinder on machine with tank strap. The
fuel tank must be securely attached to the machine
during operation.
• The hose connection from the pressure regulator
to the fuel tank fitting must be tight.
• Do not damage threads by over tightening or cross
threading.
• Always turn the key switch to OFF then shut the
valve on the propane tank to turn the machine off.
• Always remove the fuel tank from the machine and
place tank outside in an upright position in a
secure, tamper-proof, steel mesh storage cabinet.
• Check with your local fire marshal.
DAILY USE
Burnishing Methods
The Commander is designed to dry burnish or to
spray buff a hard surface floor. Each procedure may
be performed with a hair type or synthetic type pad.
Consult your local NSS authorized distributor for
more complete chemical / pad application advice.
Burnishing Path
The Commander’s pad driver extends past the frame
of the machine. This extension allows burnishing the
edge of the floor near obstructed areas (walls or
shelving).
• Sweep and dust mop the floor to remove dirt and
debris before burnishing. Accumulations of dirt or
debris on the floor will reduce machine performance.
• Some spills or stains may need to be pre-cleaned
before burnishing.
• Consult your local NSS authorized distributor for
procedures and more complete chemical advice.
Daily Preparation
• Inspect machine for damage, loose or missing parts.
• Check oil level in crankcase.
• Clean air precleaner on top of engine and air
cleaner filter.
• Remove fuel tank from locked storage container
and bring to machine.
• Install tank in position and secure with clamp.
• The hose connection from the pressure regulator
to the fuel tank must be tight.
• NOTE: Do not damage threads by over tightening
or cross threading.
• Tilt machine back on rear casters, or in service
position to obtain access to pad driver.
• If necessary change or install new pad on pad
driver. Secure pad with pad holding cup.

4
Transporting the Machine
When transporting the machine from one job to another
secure the machine in your truck or van with the fuel
cylinder installed and the service valve OFF!
Allow the engine to cool down some before loading it.
Storing the Machine
• Always turn the key switch OFF then shut the valve
on the propane tank.
• Remove the key when work has been completed or if
machine is left unattended at any time.
• Remove the propane cylinder and store outside.
• Perform all daily maintenance procedures.
• Store machine in a cool, dry, secure area where it will
not be damaged by other traffic.
• Tilt the machine back on the rear casters with the pad
off of the floor.
MANDATORY PERIODIC MAINTENANCE
It is important for you to maintain a record of the
amount of machine operating hours in order to perform
this machine maintenance. The maintenance
procedures shown in the chart on the following page
must be performed at the designated intervals. Failure
to perform maintenance procedures will result in poor
machine performance, component damage and may
void the warranty. We recommend the service
procedures be performed by an NSS authorized service
center or the authorized service center for the engine
manufacturer.
IMPORTANT: Preventative maintenance is
the Responsibility of the Operator.
To keep the machine in good working condition, simply
follow the daily, weekly, and monthly maintenance
procedures.
Daily Maintenance
(Every 4 hours of operation)
• Check oil level.
• Clean recoil filter.
• Check and clean carburetor air filter.
• Check belt tension by pinching belt together.
Belt should deflect only 1/2" (13mm).
• Make sure all components are secure and tight,
(pad holder, fuel cylinder etc.).
• Check pad holder and pad daily (clean or replace).
• Clean machine, if compressed air is available blow
dust from machine and engine, concentrating on the
inside of the engine shrouds.
• Wash undercarriage.
• On dust collection units, clean dust collection bag.
Weekly Maintenance (Every 20 hours of operation)
• All checks made on a daily basis plus:
• Change oil and oil filters at 50 hours of service.
Use 10w30 Motor Oil or other no ash motor oils
designed for use in propane engines. Use ofnon-
recommended oil may void the engine warranty.
(See engine Owners manual.).
• Check for loose nuts and / or bolts on entire
machine.
• Examine all propane fuel components for leaks or
wear. Replace if necessary.
• Grease wheels. Use white lithium grease only and
no more than 1 pump of grease.
More grease than recommended will push the
seals and dust covers out. Allowing dust and other
foreign materials to penetrate the bearing,
shortening the life of the bearings as well as
allowing grease to drop from the wheels to the
floor.
Monthly Maintenance
(Every 80-100 hours of operation)
• Perform all daily and weekly services
Consult engine Owners manual for the following:
• Torque head bolts.
• Check valve clearance.
• Torque valve cover bolts.
• Inspect spark plugs. Replace if necessary.
• Remove engine shroud and clean cooling fins.
Quarterly Maintenance
• (Every 250 hours of operation)
• Perform all of the monthly maintenance items.
• Have engine serviced by Authorized Service
Center. Including emissions check.
Adjusting Belt Tension
Tools required:
3/4" (19mm) open-end wrench
15/16” (24mm) deep well socket
• Loosen mounting bolt on the topside of machine
deck while holding adjusting nut on underside of
deck.
NOTE: The mounting bolt must be loosened before
adjustment can be made.
• Rotate adjusting nut counter clockwise with socket
to apply tension to belt.
• While holding the tension on the adjusting nut,
tighten the mounting bolt on the top of the deck.
• Check belt tension by pinching belt together. Belt
should depress only 1/2" (12mm).
Always turn the key switch OFF, shut tank valve,
and remove key before performing any
maintenance.
Authorized Repair Service
Repair service for this machine must be performed
by an NSS authorized service center. Repairs
performed by any unauthorized company will void
the machine and engine warranty. If you require
assistance finding an authorized service center,
please contact NSS Enterprises.

PERIODIC MACHINE MAINTENANCE SCHEDULE
MAINTENANCE FREQUENCY
MAINTENANCE
OPERATION Break
in after
first 25
hours
Every
day or
every 8
hours
Every
50
hours Every month
Every
100
hours
Every
200
hours
Every
1,000
hours
Inspect machine (engine, pad,
pad driver, etc.). z1
Check oil level. z
Clean air precleaner (top). z2
Clean air cleaner foam wrapper. z2
Clean cylinder cooling fins. z
Change engine oil and oil filter. zz
Lubricate wheels. zz
Check starting battery
connections. z
Replace air cleaner element and
foam wrapper.
z2
Adjust engine valve clearance
Adjust after first 50 hours of use. z3z3
Replace LPG filter. z3
Replace spark plugs. z
Replace oxygen sensor. z3
Replace catalytic muffler. z3
Clean cylinder heads. z3
1. Check for oil, fuel, and exhaust leaks, loose parts and unusual noises and vibrations.
2. Do not oil filters.
3. Must be performed by a qualified mechanic according to the engine Service Manual.

TROUBLESHOOTING
PROBLEM CORRECTIVE ACTION
1. The engine
fails to crank. a. Clean and tighten the positive (+) and negative (-) battery cable connections at the battery and at the engine.
b. Check the plug connection between the battery and the engine.
c. Recharge the battery. Refer to the equipment or battery manufacturer’s
recommendations.
2. The engine
cranks slowly. a. Clean and tighten the positive (+) and negative (-) cable connections at the battery and at the engine.
b. Recharge the battery. Refer to the equipment or battery manufacturer’s
recommendations.
c. Chang engine oil to oil having the proper viscosity for the ambient
temperature.
3. The engine
cranks but
fails to start.
a. Check the LPG container, if low on fuel, fill it, if over-filled, return to filling
station for adjustment.
b. Check, and if necessary, reconnect the fuel line to the vapor-withdrawal
fitting on the LPG container.
c. Slowly open any closed fuel shut-off valves.
d. Service the air cleaner. Do not soak with oil!
e. Clean the cooling air precleaner (top).
f. Check to make sure the spark plug cable is on tight.
g. Replace the spark plugs.
h. Check the oil level and add oil if necessary.
i. Check both ends of the vacuum hose to make sure it is on tight.
j. Reconnect any loose wiring.
k. Make sure the proper type of LPG container is being used. The container
must have a vapor-withdrawal fitting to supply the engine with fuel.
l. Check for blown head gasket. See Engine Ownersmanual for servicing.
m. Fuel system out of adjustment.
Note: Only properly trained service technicians should adjust or repair
fuel system.
n. Check for defective ignition system. See Engine Owners manual for servicing.
4. The engine
runs and then
stops.
a. Check the LPG container and fill as necessary. On cold days, the LPG
container may have to be kept at least half-full to provide the rate of
vaporization necessary to keep up with the engine fuel demand.
b. Check, and if necessary, reconnect the fuel line to the vapor-withdrawal
fitting on the LPG container.
c. Check the engine oil level and add oil as necessary. Drain excess oil if
the level is above the dipstick “Full” mark.
5. Odor of
burned rubber. a. Belt out of adjustment. See “adjusting belt tension”.
6. Engine
overheats. a. Check for incorrect oil level. See Engine Owners manual for servicing
b. Check for build up of dirt inside engine shroud. SeeEngineOwners
manual for servicing.

7. The engine
lacks power. a. Service the air cleaner.
b. Check the LPG container and fill as necessary. On cold days, the LPG
container may have to be kept at least half-full to provide the rate of
vaporization necessary to keep up with the engine fuel demand.
c. Check for improper valve clearance.
d. Check for faulty spark plugs.
e. Check for improper oil level.
f. Check for worn rings. See engine Owners manual for servicing.
8. The engine
exhausts
black smoke.
a. Service the air cleaner.
9. The engine
misfires. a. Replace the spark plugs. Check connections.
b. Check valve clearance.
10. High fuel
consumption. a. Check for faulty spark plugs.
b. Check for dirty air cleaners.
c. Check for improper fuel system adjustment.
Note: Only properly trained service technicians should adjust or repair
fuel system.
11. Machine
stops
suddenly.
a. Check fuel level.
b. Check for faulty spark plugs or wires.
c. Check to see if pad is centered on pad driver.
d. Check for correct pad size.
e. Check oil level.
1
12. Excess
vibration. a. Check to see if any bolts are loose on the engine or deck.
b. Check to see if pad is centered or if pad is damaged.
c. Check for correct oil level.
d. Check for engine overload.
e. Check for dirty filters.
f. Check for faulty spark plugs.

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]
Commander Burnisher Orig. 12-02 Rev. B 01-04 9096102