Minuteman M27000-00 Leitfaden

Model:

M27000-00

M27000-00 CE

OPERATION SERVICE PARTS CARE

Battery

Burnisher

Revised 7/02

CONTENTS

ILLUSTRATION, SPARE PARTS, OPERATION & SERVICE

PRECAUTIONS ............................................................................................................... 1

OPERATION & INSPECTION ........................................................................................... 2

PAD INSTALLATION & ADJUSTMENTS ....................................................................... 3-8

BATTERIES ..................................................................................................................... 9

MACHINE OVERVIEW, CONTROL PANEL DIAGRAM .................................................. 10

MAIN FRAME ASSEMBLY........................................................................................ 11-12

DRIVE UNIT ASSEMBLY .......................................................................................... 13-14

HANDLE ASSEMBLY ............................................................................................... 15-16

ELECTRICAL ASSEMBLY ........................................................................................ 17-20

WARRANTY POLICY .......................................................................................Back Cover

IMPORTANT SAFETY INSTRUCTIONS

CAUTION:

Operators must read and understand this manual before operating or maintaining

this machine.

Keep hands and feet clear of moving parts while machine is in operation.

Disconnect the power to the machine by pressing the red Emergency Disconnect Button when

charging batteries or during installation or removal of pads.

During operation, loose objects on the floor can become dangerous projectiles if struck by the high

speed pad. Special attention should be paid in removing or avoiding loose floor tile, electrical

cables, telephone connection boxes.

Electrical motors and components can cause an explosion when operated near explosive materials

or vapors. Do not operate this machine near flammable materials such as solvents, thinners, fuels,

grain dust, etc.

Keep machine moving to reduce the risk of damaging floor finish and floor.

Make sure the red Emergency Disconnect Button is pressed and the battery connector is unplugged

from the machine before performing any maintenance procedures.

Store or park this machine on a level surface only.

These machines are designed for level floor operation only. Do not operate on ramps or inclines.

Battery acid can cause burns. When working on or around batteries, wear protective clothing and

safety glasses. Remove metal jewelry. Do not lay tools or metal objects on top of batteries.

Charging batteries generates explosive gases. DO NOT CHARGE BATTERIES WHEN OPEN

FLAMES OR SPARKS ARE PRESENT. DO NOT SMOKE. Make sure the charger is turned off

before disconnecting it from the machine. Charge the batteries in a well-ventilated area with the

battery cover removed completely.

Maintenance and repairs must be performed by authorized personnel.

SAVE THESE INSTRUCTIONS

OPERATING INSTRUCTIONS

INSPECTION:

Carefully unpack and inspect your burnisher for shipping damage. Each unit is tested and thoroughly

inspected before shipment; any damage is the responsibility of the delivery carrier who should be

notified immediately.

ELECTRICAL:

This machine is battery operated and designed to operate on 36 volts DC (3) 12 volt batteries.

BATTERIES:

Burnishers are shipped with batteries.

3 required - Part No. 956210 12V 210 AH 20 Hr. Rate

We do not recommend mixing AMP hour capacities. Any alternate battery sets can be used if

they equal physical size and capacity. See page 9 for service and installation.

OPERATION:

Before starting, familiarize yourself with the machine and its controls (see “Machine Overview” and

“Control Panel” diagrams). To turn the machine ON, do the following:

1. Make sure the cover is on the machine so the safety interlock switch is in the closed

position.

2. Make sure that no battery charger is plugged into the recharge port (there is also a safety

interlock switch in this location).

3. Lift the red emergency disconnect button so it is in the up position.

4. Turn the keyswitch clockwise.

Once the initial functions listed above have been performed, press the “I” button on the control panel

to turn the machine on. This will illuminate the “ON” light found on the control panel and activate the

battery condition meter.

Before operating the machine, check the condition of the batteries. The battery condition meter can

be read by looking at which light is illuminated on the meter. The green light on the right end of the

meter indicates that the batteries are fully charged. As the batteries discharge, the light moves to the

left. When the light under “1/2” is illuminated, the batteries are 1/2 charged. Once the meter shows

approximately 1/4 charge, there is not enough power left in the batteries to start the burnishing motor

and the batteries need to be recharged.

The machine can be used in either an “Automatic” mode or a “Manual” mode. In the “Automatic”

mode, the burnishing head is automatically raised or lowered to compensate for irregularities in the

floor. This produces an even finish. In the “Manual” mode, the height of the burnishing head is set by

the operator. The head stays at this height until it is adjusted again by the operator. In either mode,

the motion of the machine is controlled by the handles that are located on either side of the console.

By squeezing the right handle against the console, the machine will move forward. By squeezing the

left handle against the console, the machine will move backwards. The speed of the machine is

controlled by the knob located on the control panel. The speed (in both directions) is increased by

turning the knob clockwise.

The vertical array of five lights in the middle of the control panel under “Pad Pressure” gives an

indication of pad pressure. The top light under the word “MIN” is illuminated when the pad is minimally

touching the floor. The light directly above the word “MAX” is illuminated to give indication of the

maximum amount of pad pressure. The remaining three lights designate varying levels of pad

pressure between “MIN” and “MAX”. It is normal in “AUTOMATIC” mode for the lights to periodically

“bounce” up and down on the display. This “bouncing” is a result of the machine encountering high

and low areas in the floor. As a high spot is encountered, the lights will move down the array. If a low

spot is encountered, the lights will move up the array. It is also normal for the motor to sound like it is

slowing down over a high spot. If the motor did not slow down, there is a possibility that the floor

finish could be damaged.

There are (2) circuit breakers at the bottom left rear corner of the machine. The top one (70A) is for

the burnishing motor. The bottom one (18A) is for the traction drive. If the machine is not operating

properly, check to see if the circuit breakers have popped. If so, depress the top of them to reset.

AUTOMATIC MODE:

To operate the burnishing motor in the “Automatic” mode, select one of the buttons located on the

right side of the control panel under the word “Automatic”. The top button is for “light pad pressure”.

The middle button is for “medium pad pressure”, and the bottom button is for “heavy pad pressure”.

Caution should be used when operating the machine in the “heavy pad pressure” setting. If the

machine is moved too slowly, there is a possibility that the floor finish will be damaged due to

excessive pad pressure.

Once an automatic setting has been chosen, a light adjacent to that button will illuminate. A light

under the word “Automatic” will also illuminate. The burnishing head will move to the “Start” position,

which is approximately 2 inches above the floor. When the head is in this position, the burnishing

motor will turn on when either of the direction handles is grasped and the machine begins to move.

The pad will lower to engage the floor. The level of pad pressure is automatically maintained at the

selected pressure setting. If the light under “Automatic” is flashing, the burnishing head is being

adjusted to ensure the correct pad pressure is being maintained. When the light stops flashing, the

head is no longer being adjusted up or down. If, while the machine is being used, a high spot or a low

spot in the floor is encountered, the light will begin flashing and the height of the burnishing head will

be adjusted to maintain the correct pad pressure. If the light does not stop flashing and the burnishing

head is constantly being raised and lowered, the controller is having difficulty calibrating the machine

to the floor conditions. Simply turn the speed down to a slower rate until the light stops flashing.

When burnishing is complete, raise the head using the “UP” arrow under “MANUAL” on the control

panel until it is in the full up position. The head will move slowly until it passes the “Start” position. At

that point it will raise more rapidly.

MANUAL MODE:

To operate the burnishing motor in the Manual mode, press one of the arrow buttons

on the control panel under the word “MANUAL” to control pad pressure. When the “UP” arrow is

pressed, the burnishing head is raised. When the “DOWN” arrow is pressed, the head is lowered.

When the Manual mode is selected, the light under the word “MANUAL” will illuminate. The pad will

not spin unless the burnishing head is below the “Start” position. Pad pressure is indicated by the

pad pressure indicator lights described above.

It is not advisable to operate the machine with the “MAX” light illuminated for an extended period of

time as 1) damage to the floor finish could occur, and 2) the burnishing motor may stop spinning due

to a circuit breaker trip.

(Note: In the event the burnishing motor does stop spinning the operator should check the circuit

breaker at the lower left rear corner of the machine to restart the motor)

When burnishing is complete, raise the head using the “UP” arrow until it is in the full up position. The

head will move slowly until it passes the “Start” position. At that point it will raise more rapidly.

SENSITIVITY ADJUSTMENTS:

During use of the 2700 burnisher in the “Automatic” mode, the on-board controller constantly monitors

the pad pressure on the floor. The first time the burnishing head is lowered, the light on the control

panel under the word “Automatic” will blink. This alerts the operator that the machine is attempting to

calibrate itself to the current floor condition. When the machine determines that the pad pressure

level is adjusted properly, the light will quit blinking. This initial time frame when the light is blinking is

called “First Time to Calibrate”.

When/If the current floor condition changes the light on the control panel under the word “Automatic”

will again begin to blink to alert the operator that the machine is once again attempting to calibrate

itself to the current floor condition.

There is a time delay which occurs between the machine sensing the change in the floor condition

and actually making a change to its calibration settings. This time frame is called “Time to Recalibrate”.

The light on the control panel under the word “Automatic” will not begin to blink during this time delay.

If the “Time To Recalibrate” setting has been exceeded and the floor has not resumed its original

condition then the machine will automatically begin to recalibrate itself.

When the current floor condition changes the light on the control panel under the word “Automatic”

begins to blink to alert the operator that the machine is once again attempting to calibrate itself to the

current floor condition. The machine will again automatically raise and lower the head until the proper

calibration is found. When the new position is found, the light on the control panel under the word

“Automatic” will quit blinking and the head will quit moving. The time frame when the light is again

blinking and the burnishing head is moving is called “Second Time to Calibrate”.

As the machine is used over varying floor conditions, it will continually go through the “Time to

Recalibrate” and “Second Time to Calibrate” cycle. Again, these are the operations that the machine

performed:

1) “First Time to Calibrate” - The initial time frame when the machine is raising and

lowering the burnishing head to find the correct position for proper pad pressure.

2) “Time to Recalibrate” - The time frame between when the machine senses a change

in floor conditions and when it reacts to that change.

3) “Second Time to Calibrate” - All time frames after the initial one when the burnishing

head is being raised or lowered to compensate for changing floor conditions.

To change the “First Time to Calibrate” setting, after entering the programming mode, press and

hold the “ON” button. Then press and hold the “DOWN” button. Release the “ON” button, then release

the “DOWN” button. A combination of lights will illuminate in the pad pressure array. By pressing the

“UP” or “DOWN” buttons, the lights will move accordingly. The closer the array is to the word “MIN”,

the quicker the machine will calibrate itself. The closer the array is to the word “MAX”, the longer it will

take for the machine to calibrate itself. During this time, the machine is finding an average floor

height, therefore if the machine calibrates itself too quickly, it might not have a true representation of

the floor. If the machine calibrates itself to slowly, it may never lock-in to an average. Once the correct

sensitivity adjustment has been made, press the “OFF” button to exit the programming mode and

save the setting.

To change the “Time to Recalibrate” setting, after entering the programming mode, press and hold

the “ON” button. Then simultaneously press and hold the “Heavy Pad Pressure” and “Light Pad

Pressure” buttons. Release the “ON” button and then simultaneously release the other two buttons.

A combination of lights will illuminate in the pad pressure array. By pressing the “UP” or “DOWN”

buttons, the lights will move accordingly. The closer the lights are to the word “MIN” the quicker the

machine will start to recalibrate itself after it encounters a high or low spot in the floor. The closer the

lights are to the word “MAX”, the longer it will take for the machine to start to recalibrate itself after it

encounters a high or low spot in the floor. Once the correct adjustment has been made, press the

“OFF” button to exit the programming mode and save the setting.

The sensitivity of these three features can be changed to meet the needs of the floor that is being

burnished. They can be made more sensitive, making the machine raise and lower the head more

often to ensure that proper pad pressure is being maintained even over small changes in floor

conditions. These features can also be made less sensitive, making the machine react less to

changes in floor conditions. Making the machine less sensitive can be helpful if the location that is

being burnished has particularly wavy floors and the machine can not keep up with the changing floor

conditions. Care should be taken when changing the sensitivity. When the machine is too sensitive

or not sensitive enough, there is a possibility that the floor finish can be damaged.

To change the sensitivity of the machine, the programming mode must be entered. To do this, press

and hold the “OFF” button. Then press and hold the “UP” and “DOWN” buttons simultaneously. Then

release the “OFF” button. Then release the “UP” and “DOWN” buttons. The machine is now in the

programming mode. Notice that the “ON” light is now dimly blinking.

To change the “Second Time to Calibrate” setting, after entering the programming mode, press and

hold the “ON” button. Then press and hold the “Heavy Pad Pressure” button. Release the “ON”

button, then release the “Heavy Pad Pressure” button. A combination of lights will illuminate in the

pad pressure array. By pressing “UP” or “DOWN”, the lights will move accordingly. The closer the

array is to the word “MIN”, the quicker the machine will recalibrate itself after the initial calibration

level has been found. The closer the array is to the word “MAX”, the longer it will take for the machine

to recalibrate itself. This functions just like the “first time to calibrate” described above. Once correct

adjustment has been made, press “Off” button to exit the programming mode and save the setting.

To reset the machine back to its factory sensitivity settings, after entering the programming mode,

press and hold the “Heavy Pad Pressure”, “Medium Pad Pressure”, and “Light Pad Pressure” buttons.

Then release the “ON” button and then simultaneously release the other three buttons. Most of the

lights on the control panel will blink at random. To reset to the factory settings, press the “UP” button

and then press the “OFF” button to exit the programming mode.

Power to the control board must be disconnected to disable the programming mode. This can be

most easily done by pressing the red emergency stop button. All values will be stored in the memory.

CAUTION: Machine will not be used on surfaces with a gradient exceeding 2%.

The machine shall be used only instructed and authorized persons. When cleaning, servicing or

maintaining the machine, replacing parts or converting to another function the power source shall be

switched off. Operated machines shall be disconnected by removing the power plug and battery-

operated machines shall be disconnected by removing the key of the power switch or any other

effective means.

Before use, all covers and doors shall be put in the position specified in the instructions for use.

For machines with traction drive and a mass exceeding 100 kg:

· In order to prevent unauthorized use of the machine the power source shall be switched off or

locked, for example, by removing the key of the power switch.

· Machines left unattended shall be secured against unintentional movement.

· During operation attention shall be paid to other persons, especially children.

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