Minuteman Lumina 28 M28036TDQP Guide

OPERATION ￭SERVICE ￭PARTS ￭CARE
Lumina 28 Traction Drive
Battery Burnisher
Model:
M28036TDQP

Table of Contents
IMPORTANT SAFETY INSTRUCTIONS..............................................................................................1
OPERATING INSTRUCTIONS.............................................................................................................2
INSPECTION ....................................................................................................................................2
ELECTRICAL....................................................................................................................................2
BATTERIES ......................................................................................................................................2
OPERATION.....................................................................................................................................2
AFTER USE......................................................................................................................................2
MAINTENANCE................................................................................................................................2
BATTERY SERVICE AND INSTALLATION......................................................................................3
CHARGING OF BATTERIES............................................................................................................3
MACHINE OVERVIEW ..............................................................................................................3
DASHBOARD CONTROL PANEL ....................................................................................................3
PAD INSTALLATION ........................................................................................................................4
PAD PRESSURE ADJUSTMENTS...................................................................................................4
CIRCUIT BREAKER PROTECTION .................................................................................................4
CARBON BRUSH REPLACEMENT..................................................................................................4
CARBON BRUSH SERVICE.............................................................................................................4
EXPLODED VIEWS..............................................................................................................................5
BASE ASSEMBLY ............................................................................................................................5
BASE ASSEMBLY BOM ...................................................................................................................6
MAINFRAME ASSEMBLY.................................................................................................................7
MAINFRAME ASSEMBLY BOM .......................................................................................................8
PAD DRIVER ASSEMBLY................................................................................................................9
ELECTRICAL ASSEMBLY..............................................................................................................10
ELECTRICAL ASSEMBLY BOM.....................................................................................................11
CONSOLE ASSEMBLY...................................................................................................................12
CONSOLE ASSEMBLY BOM .........................................................................................................13
DASHBOARD ASSEMBLY AND BOM............................................................................................14
SCHEMATICS.................................................................................................................................17
Minuteman International Made Simple Commercial Limited Warranty................................................22

1
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, safety
glasses and 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. Charge the batteries in a well-ventilated
area with the battery cover open.
Maintenance and repairs must be performed by authorized personnel.
SAVE THESE INSTRUCTIONS

2
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 (6) 6 volt batteries.
BATTERIES
Burnishers are shipped with batteries. (6 required)
Part No. 956744 6V 325AH 20 Hr. Rate (Optional)
We do not recommend mixing AMP hour capacities. Any alternate battery sets can be used if they
equal physical size and capacity. On board battery charger must be recalibrated if alternate batteries
are used. Contact Minuteman Engineering for procedure. See next page for service and installation.
OPERATION
Before starting, familiarize yourself with the machine and its controls (see “Machine Overview” and
“Dashboard Control Panel” diagrams). To turn the machine ON, do the following:
1. Make sure 28” high speed pad is used. Make sure the pad is installed on the machine by
following instructions under ”Pad Installation.”
2. Make sure that the battery charger is unplugged and cord is safely stored.
3. Lift the red emergency disconnect button so it is in the up position.
4. Lower the pad driver assembly by pushing the pedal slightly outward on the machine (unlock
it), and then release it slowly.
5. Place hands on the bails and squeeze the bail lever to start the operation of the machine.
Move forward in a straight line, check the reading on the Operating Range Meter and make
sure you are in the Green Zone.
6. Adjust the pad pressure as needed by pressing the pressure adjust rocker switch. (See Pad
Pressure Adjustments.)
7. Adjust speed as needed by turning the speed control knob accordingly.
AFTER USE
To raise the pad driver, push down until the pedal arm engages into the pedal catch. Turn machine
off by turning the key switch on the control panel. Machine can be cleaned with a mild detergent and
a damp cloth. Batteries should be charged after each use or when the battery condition meter shows
a low charge. Once the battery charger reads 0 amps, the batteries are recharged. This should take
approximately 11 hours if the batteries are completely discharged.
MAINTENANCE
Periodically remove batteries from machine. Clean the batteries and battery tray with a solution of
baking soda and water. Check all battery cables and wiring for signs of damage and wear. Replace
as needed. Grease front wheel and rear caster zerks once a month for best operation.

3
BATTERY SERVICE AND INSTALLATION
WARNING: Battery acid can cause burns. When working on or around batteries, wear protective
clothing, safety glasses and remove metal jewelry. Do not lay tools or metal objects on top of
batteries.
CHARGING OF BATTERIES
Charging batteries generates explosive
gasses. DO NOT CHARGE BATTERIES
WHEN OPEN FLAMES OR SPARKS ARE
PRESENT. DO NOT SMOKE. Charge the
batteries in a well-ventilated area with
battery cover open. Fluid levels should be
checked before and after charging and
maintained at the proper levels. If the
burnisher is not used for extended periods
of time, batteries should be kept fully
charged with a boost charge once a week.
MACHINE OVERVIEW
1 – Dashboard Control Panel
2 – Emergency Belly Bar Stop
3 – Emergency Stop Button
4 – Circuit Breaker, 3 AMP
5 – Circuit Breaker, 20 AMP
6 – Circuit Breaker, 125 AMP
7 – Charger, 36 VDC, 25 AMP
8 – Circuit Breaker, 2 AMP
9 – Foot Pedal
DASHBOARD CONTROL PANEL
1 - On / Off Key Switch
2 - Battery Gauge
3 - Traction Drive Directional Switch
4 - Traction Drive Speed Control
5 - Pad Pressure Gauge

4
PAD INSTALLATION
The red emergency disconnect button and the key switch must be in the OFF position before
installation and the pad driver assembly in the RAISED position. Remove center cup locking device
by gripping on outer edges and turning clockwise. NOTE: Center cup cannot be pulled out; it must be
unscrewed. After removing used pad, place new pad on pad driver assembly using outer flange of
pad driver to center the pad. Push centering locking cup through the pad and into the pad driver
assembly. The ratchet teeth on the center cup will engage into the pad driver assembly and should be
pushed in as far as possible. If further tightening is needed, rotate the center-locking cup counter-
clockwise.
PAD PRESSURE ADJUSTMENTS
The pad pressure adjust switch is located on the control panel. Different floors, conditions, and pads
produce carrying pad load conditions. Ideal burnishing conditions are maintained while the operating
range meter remains in the Green Zone. If the meter reads in the Red Zone decrease the pad
pressure. When the machine is operated in the Red Zone for a long period of time motor overload will
occur and the 125-amp circuit breaker for the motor will trip. If the motor circuit trips:
1. Check pad condition.
2. Decrease pad pressure.
3. Reset circuit breaker.
CIRCUIT BREAKER PROTECTION
125 amp circuit breaker protects pad driver motor from excessive overload conditions.
20 amp circuit breaker protects drive motor, second 20 amp circuit breaker protects vacuum motor
(optional).
3 amp circuit breaker protects control circuits against possible electrical shorts. If either circuit
breaker trips, first determine the cause and correct the condition before resetting the breakers.
CARBON BRUSH REPLACEMENT
Design life of carbon brushes is between 1800-2000 hours. Replace brushes if worn to 3/8" or less,
broken, or chipped. All carbon brushes should be replaced when motor is serviced. Four (4) are
required, P/N 572003. Red indicator on control panel (above Emergency Disconnect Button, below
the Dashboard) will glow when carbon brush service is required.
CARBON BRUSH SERVICE
1. Disconnect batteries from machine.
2. Remove two screws that hold dust control housing and motor cover to motor.
3. Blow out top of motor with air line.
4. Loosen screw and remove carbon brush lead.
5. Slide brush spring off the back of carbon brush and remove brush.
6. Reverse order for installation of new carbon brushes.

EXPLODED VIEWS
BASE ASSEMBLY
5

BASE ASSEMBLY BOM
6

MAINFRAME ASSEMBLY
7

MAINFRAME ASSEMBLY BOM
8

PAD DRIVER ASSEMBLY
9

ELECTRICAL ASSEMBLY
10

ELECTRICAL ASSEMBLY BOM
11

CONSOLE ASSEMBLY
12

CONSOLE ASSEMBLY BOM
13

DASHBOARD ASSEMBLY
14

15

16

17
SCHEMATICS

18