Windsor MERIT MP13 User manual

MERIT POLISHER 98769 09/18/00
D
Operating Instructions (ENG)
MODELS: MP13 MP17X
MP15 MP20X
MP17 MPDS
MP20
Read these instructions before using the machine.
FLOOR POLISHER
UL APPROVAL
DOES NOT
A
PPLY TO MPDS.

MERIT POLISHER 98769 12/06/99 1-1
IMPORTANT SAFETY INSTRUCTIONS
When using an electrical appliance, basic precaution
must always be followed, including the following:
READ ALL INSTRUCTIONS BEFORE USING THIS MACHINE.
To reduce the risk of fire, electric shock, or injury:
Use only indoors. Do not use outdoors or expose to rain.
Use only as described in this manual. Use only manufacturer’s recommended components and attachments.
If the machine is not working properly, has been dropped, damaged, left outdoors, or dropped into water, return
it to an authorized service center.
Do not operate the machine with any openings blocked. Keep openings free of debris that may reduce airflow.
Machine can cause a fire when operating near flammable vapors or materials. Do not operate this machine near
flammable fluids, dust or vapors.
This machine is suitable for commercial use, for example in hotels, schools, hospitals, factories, shops
and offices for more than normal housekeeping purposes.
Maintenance and repairs must be done by qualified personnel.
During operation, attention shall be paid to other persons, especially children.
The machine shall only be operated by instructed and authorized persons.
When leaving unattended, unplug the machine.
Do not handle the plug or machine with wet hands.
Do not unplug machine by pulling on cord. To unplug, grasp the plug, not the cord.
Do not use with damaged cord or plug. Follow all instructions in this manual concerning grounding the machine.
Do not pull or carry by cord, use cord as a handle, close a door on cord, or pull cord around sharp edges or
corners.
Do not pull/run machine over cord. Keep cord away from heated surfaces.
Connect to a properly grounded outlet. See Grounding Instructions.
SAVE THESE INSTRUCTIONS

WARNING:

HAZARD INTENSITY LEVEL
MERIT POLISHER 98769 12/06/99
1-2
The following symbols are used throughout this guide as indicated in their descriptions:
HAZARD INTENSITY LEVEL
There are three levels of hazard intensity identified by signal words -WARNING and CAUTION and FOR
SAFETY. The level of hazard intensity is determined by the following definitions:
WARNING - Hazards or unsafe practices which COULD result in severe personal injury or death.
CAUTION - Hazards or unsafe practices which could result in minor personal injury or product or property
damage.
FOR SAFETY: To Identify actions which must be followed for safe operation of equipment.
Report machine damage or faulty operation immediately. Do not use the machine if it is not in proper
operating condition. Following is information that signals some potentially dangerous conditions to the
operator or the equipment. Read this information carefully. Know when these conditions can exist. Locate
all safety devices on the machine. Please take the necessary steps to train the machine operating
personnel.
FOR SAFETY:
DO NOT OPERATE MACHINE:
Unless Trained and Authorized.
Unless Operation Guide is Read and understood.
In Flammable or Explosive areas.
In areas with possible falling objects.
WHEN SERVICING MACHINE:
Avoid moving parts. Do not wear loose clothing; jackets, shirts, or sleeves when working on the
machine. Use Windsor approved replacement parts.
!WARNING
!CAUTION

GROUNDING INSTRUCTIONS
MERIT POLISHER 98769 09/18/00 1-3
THIS PRODUCT IS FOR COMMERCIAL USE
ONLY.
ELECTRICAL:
In the USA this machine operates on a one 15
amp nominal 120V, 60 hz, A.C. power circuit. The
amp, hertz, and voltage are listed on the data
label found on each machine. Using voltages
above or below those indicated on the data label
will cause serious damage to the motors.
GROUNDING INSTRUCTIONS:
This appliance must be grounded. If it should
malfunction or break down, grounding provides a
path of least resistance for electric current to
reduce the risk of electric shock. This appliance
is equipped with a cord having an equipment-
grounding conductor and grounding plug. The
plug must be inserted into an appropriate outlet
that is properly installed and grounded in
accordance with all local codes and ordinances.
This appliance is for use on a nominal 120-volt
circuit, and has a grounded plug that looks like the
plug in “Fig. A”. A temporary adaptor that looks
like the adaptor in “Fig . C” may be used to
connect this plug to a 2-pole receptacle as shown
in “Fig. B”, if a properly grounded outlet is not
available. The temporary adaptor should be used
only until a properly grounded outlet (Fig. A) can
be installed by a qualified electrician. The green
colored rigid ear, lug, or the like extending from
the adaptor must be connected to a permanent
ground such as a properly grounded outlet box
cover. Whenever the adaptor is used, it must be
held in place by a metal screw.
Improper connection of the equipment-
grounding conductor can result in a risk of
electric shock. Check with a qualified
electrician or service person if you are in
doubt as to whether the outlet is properly
grounded. Do not modify the plug provided
with the appliance - if it will not fit the outlet,
have a proper outlet installed by a qualified
electrician.

WARNING:

TECHNICAL SPECIFICATIONS
MERIT POLISHER 98769 09/18/00
2-1
ITEM DIMENSION/CAPACITY
Construction Heavy-duty die cast aluminum deck
with heavy-duty rubber bumper,
tubular steel adjustable handle with
die cast aluminum handle housing
Motor
MP13, MP15, MP17, MP20 1.25 hp
MP17X, MP20X, MPDS 1.75 hp
Brush/Pad speed
MP13, MP15, MP17, MP20, MP17X, MP20X 175 rpm
MPDS 175/300 rpm
Electrical system 115 volts, 60 Hz
Cable 50’ (15 m), 14/3, built in cord wrap
Switches Dual levers with safety lock
Wheels Two 5” (12.7 cm) dia., 1.25” (3 cm)
wide, non-marking tread
Handle 1.5” (4 cm) tubular steel,
adjustable, easy to use thumb
activated safety lock
Dimensions (L x W x H)
13” (33 cm) model 21.0” (53 cm) x 14” (36 cm) x 47”
(119 cm)
15” (38 cm) model 22.0” (56 cm) x 16” (41 cm) x 47”
(119 cm)
17” (43 cm) model 23.0” (58 cm) x 18” (46 cm) x 47”
(119 cm)
20” (51 cm) model 24.5” (62 cm) x 21” (53 cm) x 47”
(119 cm)

HANDLE INSTALLATION
MERIT POLISHER 98769 09/18/00
2-3
The machine is shipped with handle unassembled.
Follow these steps for installation:
1. Remove handle (38291) and deck assembly
from carton.
2. Attach handle assembly to base using hardware
kit (47331) (attached to handle in a plastic bag)
items 1, 2, and 3.
3. Remove bolt, nut and washers (items 4, 5 and
6) from lower block on handle assembly. Attach
links as shown. Tighten bolt and nut securely,
then back off 1/4 to 1/2 turn.
4. Check handle for movement up and down.
5. Plug motor cord into handle cord receptacle.
3
2
1
5
4
HANDLE
6
RECEPTACLE
MOTOR
PLUG
HANDLE
ASSEMBLY
DECK
ASSEMBLY
38291

OPERATION
MERIT POLISHER 98769 04/20/00 2-4
CONTROLS
1. Safety Lock – Prevents unintended operation of
the machine.
2. Switch Levers – Turns machine on/off.
3. Adjustment Handle – Allows the handle to be
adjusted to a comfortable operating position.
OPERATION
For indoor use only.
To prevent possible damage to the floor when
using the brush option, use water or other
approved cleaning solution while operating.
When using the pad option, always keep the
machine moving when in contact with the floor.
High starting torque. Hold machine firmly with
both hands.
1. Ensure that the pad driver or brush is installed
correctly and in good shape. Install or change
pad if necessary.
2. Plug the machine into a wall outlet as described
in the grounding instructions.
3. Lower the handle by unlocking the adjustment
handle and moving the handle into position.
Relock the handle when it is in a comfortable
position.
Insure that handle is locked in position before
starting machine.
4. Push the safety lock forward, unlocking the
switch levers.
5. With the safety lock forward, squeeze one or
both of the switch levers, turning the machine
on. (These levers can be operated
independently of each other). The safety lock
will not re-engage until both levers are released.
6. To stop the machine, release the switch levers.
NOTE: The machine is equipped with a circuit
breaker to protect the motor in the event an overload
condition occurs. The circuit breaker is located on
the rear of the motor. Push the reset button to restart
the machine. If the breaker trips again, correct the
cause of overloading before proceeding.
DAILY MAINTENANCE
1. Inspect power cord for wear. To prevent
electrical shock replace cords with frayed or
cracked insulation immediately.
2. Place machine in the storage position.
3. Check pad condition. Change if soiled or torn.
PAD DRIVER INSTALLATION
1. Lay machine back, exposing the under side.
2. Place pad driver on the motor lug and rotate
clockwise until engaged. To remove, turn
counter-clockwise.
!CAUTION
22
1
3
LOCK
UNLOCK
!WARNING
!WARNING

MAINTENANCE
MERIT POLISHER 98769 12/06/99
2-5
SCRUB BRUSHES
NOTE: All original equipment brushes are equipped
with “Perform Alert”. This feature will tell the
operator when it is time to replace the scrub
brushes. “Perform Alert” brushes have pre-
trimmed bright yellow tufts to indicate the length of a
worn out brush. When the tufts in the scrub brush
wear to a length equal to the yellow tufts, the scrub
brushes should be replaced.
There are five different types of brushes available to
cover applications from cleaning heavily soiled floors
to polishing. A pad driver is also available to take
advantage of the many cleaning pads on the market
and further add to the flexibility of the MERIT.
Please refer to the following to assist in selecting the
proper brush or pad for the work at hand.
UNCOATED FLOORS
Aggressive Grit is a nylon fiber impregnated with
silicone carbide grit. It grinds away stain, soil, and
removes surface material.
Mild Grit is a less aggressive silicone carbide grit
suitable for cleaning medium soil conditions.
Advantages are faster ground speed than nylon
bristles on light solid applications.
Nylon is a general-purpose scrub brush with stiff
bristles. Polypropylene works well for maintaining
concrete, wood and tile floors.
FINISHED FLOORS
Nylon Polish is the softest brush. It will gently clean
finished tile or terrazzo floors without removing floor
finish or floor material. Used for washing highly
polished or burnished floors.
Nylon bristles are used in a variety of applications
on coated or uncoated surfaces.
White Pads (Polishing) are used for dry polishing to
achieve a high-gloss appearance, or surface
washing on highly polished or burnished floors.
Red Pads (Buffing) are used for light-duty
scrubbing. When used with a mild detergent they
will provide surface cleaning without removing the
finish.
Blue Pads (Scrubbing) are used for heavy-duty
scrubbing and light stripping. The blue pads remove
less finish than brown stripping pads, yet will remove
black marks, stains and dirt.
Brown Pads (Stripping) are used for easy and
complete removal of old floor waxes/finishes. They
will quickly remove ground in dirt, black heel marks,
and spills. When used with the proper stripper, this
pad leaves the floor clean and ready for finishing.
The scrub brushes should be checked before each
days work for wire, string, wear and damage. The
scrub brushes should be replaced if brush bristles
are missing or if yellow Perform Alert indicates
minimum brush length.

MACHINE TROUBLESHOOTING
MERIT POLISHER 98769 09/18/00 2-6
PROBLEM CAUSE SOLUTION
Machine will not run Circuit breaker tripped in
building.
Check and reset
Power switch failure Test switch for continuity
and replace if necessary.
Tripped circuit breaker Reset
Faulty power cord Replace
Fuse in motor is blown Replace
CAUTION: To reduce the
risk of electrical shock,
unplug the machine before
opening fuse holder.
Fuse will only open under
extreme conditions.
Investigate cause before
replacing.
Electrical shock Equipment not grounded Follow grounding
instructions exactly.
Receptacle not grounded Have an electrician inspect
building’s wiring.
Internal wiring problem Ensure that the machine
wiring matches the
appropriate wiring
diagram. Replace any
wires or components which
are short circuiting.
Repeated cuicuit breaker tripping Mechanical problem Higher amp draws indicate
a mechanical problem, find
the problem before using
the machine.
Faulty circuit breaker Test circuit for continuity.
Replace circuit breaker if
necessary.
Excessive vibration Pad not centered Re-center pad.
Damaged or unevenly worn
pad.
Replace pad. Do not rest
machine on pad when not
in use.
Damaged pad driver. Replace.
Pad does not turn but motor is
running
Shear coupling has failed Replace coupling

BRUSH/PAD DRIVER GROUP
MERIT POLISHER 98769 12/06/99
3-1
1A
1B
1C
1D
2A-W

BRUSH/PAD DRIVER GROUP
MERIT POLISHER 98769 12/06/99 3-2
REF PART NO. QTY DESCRIPTION SERIAL NO.
FROM NOTES:
1A 02216 - PAD DRIVER, 13" MERIT
1B 02396 - PAD DRIVER, 15" MERIT
1C 02218 - PAD DRIVER, 17" MERIT
1D 02219 - PAD DRIVER, 20" MERIT
2A 02232 - BRUSH, 13" NYL.POL. W/CLT.PLT
2B 02233 - BRUSH, 13" NYL.SCRUB W/CLT.PLT
2C 02234 - BRUSH, 13" MILD GRIT W/CLT.PLT
2D 02235 - BRUSH, 13" AGG. GRIT W/CLT.PLT
2E 02236 - BRUSH, 13" POLYPRO W/CLT. PLT
2F 02447 - BRUSH, 15” NYL.POL. W/CLT.PLT
2G 02448 - BRUSH, 15” NYL. SCRUB W/CLT.PLT
2H 02445 - BRUSH, 15” MILD GRIT W/CLT.PLT
2J 02444 - BRUSH, 15” AGG.GRIT W/CLT.PLT
2K 02446 - BRUSH, 15” PLOYPRO W/CLT.PLT
2L 02242 - BRUSH, 17" NYL. POL. W/CLT.PLT
2M 02240 - BRUSH, 17" NYL.SCRUB W/CLT.PLT
2N 02241 - BRUSH, 17" MILD GRIT W/CLT.PLT
2P 02205 - BRUSH, 17" AGG. MALGRIT W/C.P
2Q 02206 - BRUSH, 17" POLYPRO W/CLT. PLT
2R 02239 - BRUSH, 20" NYL.POL.W/CLT.PLT.SFT
2T 02237 - BRUSH, 20” NYL.SCRUB W/CLT.PLT
2U 02238 - BRUSH, 20" MILD GRIT W/CLT.PLT
2V 02202 - BRUSH, 20" AGG. MALGRIT W/C.P.
2W 02203 - BRUSH, 18" POLYPRO W/CLT. PLT

FRAME GROUP
MERIT POLISHER 98769 04/20/00
3-3
MOTOR ASM
SEE PG 3-5
2A
2B
2C
2D
18
20
15
25
5
7C
7D
7A
7B
1
22
16
23
17
19
4
8
21 13
11
24
9
14
21
26
3

FRAME GROUP
MERIT POLISHER 98769 04/20/00 3-4
REF PART NO. QTY DESCRIPTION SERIAL NO.
FROM NOTES:
1 03111 1 AXLE, MAIN POLISHER
2A 14341 - BUMPER, EXTRUSION 30.5"
2B 14371 - BUMPER, EXTRUSION 37.3"
2C 14372 - BUMPER, EXTRUSION 43.8"
2D 14373 - BUMPER, EXTRUSION 53.4"
3 57276 2 NUT, PUSH FLAT RD .51D
4 23206 1 CORDSET, 14/3 X 47", SJT, BLK
5 27871 2 CAP, EXTRUSION
6 - - OPEN
7A 29211 - DECK, 13 IN POLISHER, BLUE
7B 29212 - DECK, 15 IN POLISHER, BLUE
7C 29213 - DECK, 17 IN POLISHER, BLUE
7D 29214 - DECK, 20 IN POLISHER, BLUE
8 38290 1 HANDLE, POLISHER
9 51328 2 LINK, HANDLE ADJUST
10 - - OPEN
11 57275 1 NUT, M10X1.5 HEX NYLOK PLTD
12 - - OPEN
13 70135 2 SCR, M8 X 30 HHMS
14 70262 2 SCR, M8 X 20 HHMS PLTD
15 70691 2 SCR, M6 X 25 HHMS BLK
16 70698 4 SCR,5/16-18 X 3/4 HHCS GR5 BLK
17 70701 1 SCR, M10 X 90 HHMS
18 730008 2 SPACER, .317ID X .5OD X .44LG
19 730012 1 STRAIN RELIEF, 14/3 STRAIGHT
20 78447 1 TUBE ASSY, HANDLE ADJ
21 87054 2 WASHER, M8 FLAT DIN125A PLT
22 87067 4 WASHER, 5/16 LOCK INT STAR PLT
23 87086 2 WASHER, M10 X 30 PLTD
24 87203 2 WASHER, 14MMID X 36MMOD
25 87211 2 WASHER, M6 FLAT BLK
26 89206 2 WHEEL, 5D X 1.25 X 13MMID GRY

MOTOR GROUP
MERIT POLISHER 98769 09/18/00
3-5
MP13, MP15, MP17, MP20 MP17X, MP20X
MPDS
8
8
3
2
4
1
7
6
5
9
10
7
11
11
11

MOTOR GROUP
MERIT POLISHER 98769 09/18/00 3-6
REF PART NO. QTY DESCRIPTION SERIAL NO.
FROM NOTES:
1 27884 1 COVER, MOTOR, 1.0 HP
2 500209 1 LABEL, MERIT MAIN
3 53243 1 MOTOR, 115V 1.0 HP 175RPM
4 70702 3 SCR, M5 X .8 X 15MM FHMS BLK
5 53244 1 MOTOR, 115V 1.5 HP 175RPM W/ COVER
6 500215 1 LABEL, MERIT DELUXE MAIN
7 27892 1 COVER, ASM, MOTOR, 1.5 HP
8 70700 8 SCR, M5 X .8 X 10MM PHMS BLK
9 53253 1 MOTOR, 115V 1: #P 175/300 RPM
10 500312 1 LABEL, DUAL SPEED
11 70723 6 SCR, M5 X .8 X 15MM SHCSM
MOTOR COMPONENTS (NOT SHOWN)
REF PART NO. QTY DESCRIPTION SERIAL NO.
FROM NOTES:
140411 1 CIRCUIT BREAKER, 20 AMP MP13, MP15, MP17,
MP20
140401 1 CIRCUIT BREAKER, 30 AMP MP17X, MP20X, MPDS
67029 1 RECTIFIER
14404 1 BRUSH SET MP MOTOR (PKG OF 4)
34378 1 FUSE
34379 1 FUSE HOLDER
09135 2 BEARING, MOTOR
27352 1 COUPLING, MTR/GEAR BOX
730039 1 SWITCH ASM MPDS (FOR 2 SPEED
ONLY)

HANDLE GROUP
MERIT POLISHER 98769 05/22/00
3-7
11
20 12
4
15
9
21
19
1
9
2
5
14
3
10
8
7
17
18
6
13
16
22

HANDLE GROUP
MERIT POLISHER 98769 05/22/00 3-8
REF PART NO. QTY DESCRIPTION SERIAL NO.
FROM NOTES:
1 14344 1 BAR, HANDLE ADJUST
2 140393 1 BLOCK, HANDLE MOUNT
3 36196 2 GRIP, POLISHER HANDLE
4 41363 1 HOUSING, POLISHER HANDLE REAR
5 41366 1 HOUSING, POLISHER HANDLE FRONT
6 51326 1 LOCK, SAFETY
7 51327 1 LEVER, SWITCH
8 57274 4 NUT, M6X1 HEX BLK
9 57275 1 NUT, M10X1.5 HEX NYLOK PLTD
10 500194 1 LABEL, WARNING
11 66334 1 PIN, PIVOT, HANDLE ADJUSTMENT
12 67430 1 ROD, HANDLE ADJUST
13 70686 2 SCR, M6 X 45 SHCS BLK
14 70687 2 SCR, M6 X 50 SHCS BLK
15 70689 1 SCR, M4.8 X 10 HHTF TYPE B
16 70692 1 SCR, MID X 75 HHCS PLTD
17 73990 2 SPRING, EXT, .5OD X 3.5L
18 78437 1 TUBE, GRIP HANDLE
19 87086 2 WASHER, M10 X 30 PLTD
20 87202 1 WASHER, BEARING (HANDLE ADJ)
21 78447 1 TUBE ASSY, HANDLE ADJ
22 14434 1 BUMPER, HANDLE

WIRING GROUP
MERIT POLISHER 98769 12/06/99
3-9
11
64
38
7
9
5
10
2
6
11
1

WIRING GROUP
MERIT POLISHER 98769 12/06/99 3-10
REF PART NO. QTY DESCRIPTION SERIAL NO.
FROM NOTES:
1 20054 1 CLAMP, 3/8 NYLON UL/CSA
2 23167 1 CORD SET, 14/3 STO X 50' YLW
3 23206 1 CORDSET, 14/3 X 47", SJT, BLK
4 57069 1 NUT, ORG WIRE (2-5 18G/2-14G)
5 70688 2 SCR, M3.5 X 30 HHTF TYPE B
6 70689 2 SCR, M4.8 X 10 HHTF TYPE B
7 72123 1 SWITCH, 25A SPST 125-250V SNAP
8 73989 1 SPACER, SWITCH POLISHER
9 73993 1 SPRING, COMP, .48OD X .875L
10 87057 2 WASHER, M4 SHAKEPROOF
11 87208 2 WASHER, M5 SHAKEPROOF PLTD

WIRING DIAGRAM / NOTES
MERIT POLISHER 98769 12/06/99
3-11
NOTES: