MULTIQUIP MP25E1, MP25E3, MP2H Operation Manual

OPERATION MANUAL

MP2 SERIES

MODELS: MP25E1,

MP25E3, MP2H

MASONRY SAWS

(5 HP 1Ø ELECTRIC MOTOR)

(5 HP 3Ø ELECTRIC MOTOR)

(8.5 HP GASOLINE ENGINE)

Revision #3 (10/17/17)

To find the latest revision of this

publication, visit our website at:

www.multiquip.com

THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

P/N: 35305

PROPOSITION 65 WARNING

Engine exhaust and some of
its constituents, and some dust created
by power sanding, sawing, grinding,

drilling and other construction activities

contains chemicals known to the State

of California to cause cancer, birth
defects and other reproductive harm.
Some examples of these chemicals are:

Lead from lead-based paints.
Crystalline silica from bricks.
Cement and other masonry products.
Arsenic and chromium from chemically
treated lumber.
Di-lsononyl Phthalate (DINP)

Your risk from these exposures varies,
depending on how often you do this type
of work. To reduce your exposure to
these chemicals: ALWAYS work in a
well ventilated area, and work with
approved safety equipment, such as
dust masks that are specially designed
to filter out microscopic particles.

PAGE 2 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

SILICOSIS/RESPIRATORY WARNINGS

WARNING

SILICOSIS WARNING RESPIRATORY HAZARDS

Grinding/cutting/drilling of masonry, concrete, metal and
other materials with silica in their composition may give
off dust or mists containing crystalline silica. Silica is a
basic component of sand, quartz, brick clay, granite and
numerous other minerals and rocks. Repeated and/or
substantial inhalation of airborne crystalline silica can
cause serious or fatal respiratory diseases, including
silicosis.In addition, California and some other
authorities have listed respirable crystalline silica as a
substance known to cause cancer. When cutting such
materials, always follow the respiratory precautions
mentioned above.

WARNING

Grinding/cutting/drilling of masonry, concrete, metal and
other materials can generate dust, mists and fumes
containing chemicals known to cause serious or fatal
injury or illness, such as respiratory disease, cancer,
birth defects or other reproductive harm. If you are
unfamiliar with the risks associated with the particular
process and/or material being cut or the composition of
the tool being used, review the material safety data
sheet and/or consult your employer, the material
manufacturer/supplier, governmental agencies such as
OSHA and NIOSH and other sources on hazardous
materials. California and some other authorities, for
instance, have published lists of substances known to
cause cancer, reproductive toxicity,or other harmful
effects.

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 3

Control dust, mist and fumes at the source where
possible. In this regard use good work practices and
follow the recommendations of the manufacturers or
suppliers, OSHA/NIOSH, and occupational and trade
associations.Water should be used for dust
suppression when wet cutting is feasible. When the
hazards from inhalation of dust, mists and fumes cannot
be eliminated, the operator and any bystanders should
always wear a respirator approved by NIOSH/MSHA for
the materials being used.

MP2 Masonry Saw

Proposition 65 Warning ........................................... 2

Silicosis/Respiratory Warnings ................................ 3

Safety Information ................................................ 5-8

Specifications .......................................................... 9

Dimensions ............................................................ 10

General Information ............................................... 11

Saw Components ............................................. 12-13

Electric Motor Components ................................... 14

Engine Components .............................................. 15

Set-Up .............................................................. 16-20

Operation .......................................................... 21-24

Maintenance ..................................................... 25-29

Wiring Diagram (Engine) ....................................... 30

Troubleshooting (Blade) ......................................... 31

Troubleshooting (Electric Motor) ............................ 32

Troubleshooting (Engine) ....................................... 33

TABLE OF CONTENTS

NOTICE

Specifications are subject to change without notice.

PAGE 4 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

SAFETY INFORMATION

Do not operate or service the equipment before reading
the entire manual. Safety precautions should be followed
at all times when operating this equipment.
Failure to read and understand the safety
messages and operating instructions could
result in injury to yourself and others.

SAFETY MESSAGES

The four safety messages shown below will inform you
about potential hazards that could injure you or others. The
safety messages specifi cally address the level of exposure
to the operator and are preceded by one of four words:

DANGER, WARNING, CAUTION

SAFETY SYMBOLS

Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with

safety messages.

DANGER

Indicates a hazardous situation which, if not avoided,

WILL result in DEATH or SERIOUS INJURY.

WARNING

Indicates a hazardous situation which, if not avoided,

COULD result in DEATH or SERIOUS INJURY.

CAUTION

Indicates a hazardous situation which, if not avoided,
COULD result in MINOR or MODERATE INJURY.

or NOTICE.

Symbol Safety Hazard

Rotating parts hazards

Cutting and crushing hazards

Electric shock hazards

NOTICE

Addresses practices not related to personal injury.

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 5

SAFETY INFORMATION

GENERAL SAFETY







 No one other than the operator is to be in the working

check the equipment for loosened threads or

use the equipment for any purpose other than

This equipment should only be operated by trained and

Whenever necessary, replace nameplate, operation and

Manufacturer does not assume responsibility for any
accident due to equipment modifi cations. Unauthorized

use accessories or attachments that are not

recommended by Multiquip for this equipment. Damage

keep

Also, know the phone numbers

fi re department.

This information will be invaluable in the case of an

WARNING

Adherence to the OSHA 2017 Ruling governing
Occupational Exposure to Respirable Crystalline Silica,
requires that all sawing operations MUST BE conducted
with an integrated water delivery system that feeds water
to the blade.

CAUTION

NEVER operate this equipment without proper protective

clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.

Avoid wearing jewelry or loose fi tting clothes that may
snag on the controls or moving parts as this can cause
serious injury.

NEVER operate this equipment when not

feeling well due to fatigue, illness or when
under medication.

NEVER operate this equipment under the

infl uence of drugs or alcohol.

area when the equipment is in operation.

 ALWAYS

bolts before starting.

 DO NOT

its intended purposes or applications.

NOTICE



qualifi ed personnel 18 years of age and older.



safety decals when they become diffi cult read.



equipment modifi cation will void all warranties.

 NEVER

to the equipment and/or injury to user may result.

 ALWAYS know the location of the nearest

fi re extinguisher.

 ALWAYS know the location of the nearest

fi rst aid kit.

 ALWAYS know the location of the nearest phone or

a phone on the job site.
of the nearest ambulance, doctor and

ALWAYS clear the work area of any debris, tools, etc.

that would constitute a hazard while the equipment is
in operation.

PAGE 6 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

emergency.

SAFETY INFORMATION

SAW SAFETY





BLADE SAFETY

Verify the motor start switch is set to the OFF position

Use proper blades and follow blade manufacturer’s
recommendations. Match the blade RPM (blade shaft
RPM) to the recommended blade surface feet per minute

Ensure the blade-mounting bolt is tightened

examine blade flanges for damage and

Ensure the blade is marked with an operating speed

Only cut the material that is specifi ed for the diamond
blade. Read the specifi cation of the diamond blade to
ensure the proper tool has been matched to the material

Ensure that water is used during sawing operations and
that a suffi cient fl ow of water is applied to both sides of

drop the diamond blade on ground or surface.

Ensure that the blade is mounted for proper operating

Adhere to the blade manufacturer’s recommendations

CAUTION

NOTICE

DANGER

NEVER operate the equipment in an explosive atmosphere

or near combustible materials. An explosion or fi re could
result causing severe bodily harm or even death.

WARNING

Accidental starting can cause severe injury

or death. ALWAYS place the ON/OFF
switch in the OFF position.

Keep hands away from moving parts at all

times.

NEVER disconnect any emergency

or safety devices. These devices are

intended for operator safety. Disconnection of these
devices can cause severe injury, bodily harm or even
death. Disconnection of any of these devices will void
all warranties.

CAUTION

ALWAYS ensure saw is securely placed on appropriate

blocks or jackstands when maintenance requires
elevation of the saw.

If the machine malfunctions, stop the saw immediately

and secure it. Fix the problem as soon as possible.

 NEVER operate the saw without blade

guards and covers in place. Exposure of
the diamond blade must not exceed 180
degrees.



before installing a blade.

 ALWAYS inspect blade before each

use. The blade should exhibit no cracks,
dings, or fl aws in the steel centered core
and/or rim. Center (arbor) hole must be
undamaged and true.

NOTICE



(SFPM).



adequately

 ALWAYS

excessive wear.



greater than the spindle speed of the saw.



ALWAYS keep the machine in proper running condition.

Fix damage to machine and replace any broken parts

immediately.

Make sure there is no buildup of grease, oil or debris

on the machine.

ALWAYS store equipment properly when it is not being

used. Equipment should be stored in a clean, dry location
out of the reach of children and unauthorized personnel.

Rotating blade can cut and crush. ALWAYS

keep hands and feet clear while operating
the saw.

WARNING

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 7

being cut.



the blade.

 DO NOT



direction.



on handling, storage and safe usage of blades.

SAFETY INFORMATION

ELECTRIC MOTOR SAFETY



Power Cord/Cable Safety



LIFTING SAFETY

allow any person or animal to stand underneath

Some saws are very heavy and awkward to move around.

tie down equipment during transport by

Ensure that the diamond blade does not come into contact

transport the saw to or from the job site with the

use food or plastic containers to dispose of

pour waste, oil or fuel directly onto the ground,

NOTICE

Operate electric motor only at the specifi ed voltage
indicated on the nameplate.

DO NOT spray water onto electric motor.

ALWAYS disconnect AC power plug from power source

before moving saw, changing blade, or performing
maintenance.

ALWAYS make sure the ON/OFF switch

on the electric motor is in the OFF position
when not in use and before inserting the
saw’s power plug into an AC receptacle.

DANGER

NEVER let power cords or cables lay in water.

NEVER use damaged or worn cables or cords when

connecting equipment to generator. Inspect for cuts in
the insulation.

CAUTION

 NEVER

the equipment while lifting.



Use proper heavy lifting procedures.

 DO NOT lift machine to unnecessary heights.

 NEVER lift the equipment while the motor is running.

TRANSPORTING SAFETY

NOTICE

 ALWAYS shutdown motor before transporting.

 ALWAYS

securing the equipment with rope.



with the ground or surface during transportation.

 NEVER

blade mounted.

NEVER grab or touch a live power

cord or cable with wet hands. The
possibility exists of electrical shock,

electrocution or death.

Make sure power cables are securely

connected. Incorrect connections may
cause electrical shock and damage to the
saw.

CAUTION

Ensure that cables and cords will not be tripped over or

trapped underneath the saw.

Never use the cable to pull out the plug from the power

source.

NOTICE

ALWAYS make certain that proper power or extension
cord has been selected for the job.

Protect the cable from heat, oil, and sharp edges.

ENVIRONMENTAL SAFETY

NOTICE

 Dispose of hazardous waste properly.

Examples of potentially hazardous waste
are used motor oil, fuel and fuel fi lters.

 DO NOT

hazardous waste.

 DO NOT

down a drain or into any water source.

PAGE 8 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

SPECIFICATIONS

Table 1. Saw Specifications

Saw Model MP25E1 MP25E3 MP2H

Approximate Weight

Blade Capacity

Cutting Depth

Blade Shaft Speed

Water Pump

Table 2. MP2 Electric Motor/Engine Specifications

Saw Model MP2H MP25E1 MP25E3

Engine/Motor Honda GX270QWH2

115V/60Hz, Oil-filled, 300 GPM

2,497 RPMs 2,222 RPMs

415 lbs. (188 Kg.)

20 in. blade maximum

8 in. with 20 in. blade

Mechanical/

Centrifugal,138 GPH

Type 4-Stroke OHV Single Cylinder

Bore & Stroke 3.0 x 2.3 in. (77 x 58 mm)

Displacement 16.5 cu. in. (270 cc)

Max Output 8.5 HP (6.3 KW) @ 3600 rpm

Fuel Tank Cap. 1.59 U.S. Gal. (6.0 liters)

Fuel Unleaded Gasoline

Lube Oil Cap. 1.16 U.S. Qt. (1.1 liters)

Speed Control

Method

Starting Method Recoil Start

Dimension

Dry Net Weight 55.1 Lbs. (25.0 Kg)

Centrifugal Fly-Weight type

14.0 x 16.9 x 16.1 In.

(355 x 430 x 410 mm)

5 H.P.

Industrial TEFC

Electric

208-230 VAC

21.5 - 20.0 Amp

Single Phase

60 Hz

5 H.P.

Industrial TEFC

Electric

230 VAC

12.0 Amp

Three Phase

60 Hz

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 9

DIMENSIONS

Figure 1. Dimensions

Table 3. Dimension

REFERENCE LETTER DESCRIPTION DIMENSION in. (mm)

A Max Length 48 in. (1219 mm)

Max Height (Electric Models) 61 in. (1549 mm)

B

Max Height (Gasoline Models) 68 in. (1727 mm)

C Max Width 23 in. (584 mm)

D Tray Height 34.5 in. (876 mm)

E Tray Depth 4.5 in. (114 mm)

F Splash Shield Opening 18 in. (457 mm)

G Cart Length 13.5 in. (343 mm)

H Cart Height 2.5 in. (63.5 mm)

I Cart Width 24 in. (610 mm)

MS 2090 HP 526 lbs. (239 Kg)

WEIGHTS

MS 2050 E1 501 lbs. (227 Kg)

MS 2050 E3 526 lbs. (239 Kg)

PAGE 10 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

GENERAL INFORMATION

MP2 MASONRY SAW

The MP2 Masonry Saw is designed for vigorous wet-cutting
masonry applications. The heavy-duty steel conveyor cart
and ball bearing roller wheels ensure material stability and
smooth travel. In addition a reinforced jig-welded steel frame
provides rigidity for cutting accuracy and long service life.

This saw is available with either an electric motor or a
gasoline engine. Two heavy duty electric motors are
available: a 5 HP 230V single phase or 5 HP 230V three
phase, all with overload protection.

If desired, the MP2 Masonry Saw can be configured with
an 8.5 HP Honda GX270 gasoline engine.

All MP2 saw models include a high flow water pump, cutting
jig, water hoses and associated plumbing to enable the
operator to begin wet cutting.

WET CUTTING APPLICATIONS

For operator safety, ALL sawing must be conducted with
the water delivery system that is provided with the masonry
saw. Ensure that a free flow of clean water is properly routed
from the pump through the plumbing system so that the
blade receives an ample amount of water. This action is
required to safeguard against the operational hazards of
silica exposure.

BLADE APPLICATIONS

This saw has been designed to incorporate the use
of diamond blades as the cutting tool. The optimum
performance of this saw is best evidenced by using 20-inch
(508 mm) diamond blades that match the material being
cut. Ask your dealer, or call MULTIQUIP about your specific
cutting application.

FEATURES

 5 HP, 230 VAC , 60 Hz heavy duty electric motors with

overload protection.

 8.5 HP Honda GX270 gasoline engine.

 20-inch blade capacity provides 8-inch depth of cut.

 Rugged steel conveyor cart for optimum stability.

 Open back design permits capability of cutting large

materials.

 Ergonomically designed cutting head provides operator

relief in high tempo operations.

 Welded fork pockets for easy transportation.

 Rubber-matted cutting table helps hold the material

being cut in place while resisting vibrations for smoother
cuts with less chipping.

WARNING

Adherence to the OSHA 2017 Ruling governing
Occupational Exposure to Respirable Crystalline
Silica, requires that all sawing operations MUST BE
conducted with an integrated water delivery system
that feeds water to the blade.

 Cutting table marked in inches (ruler) for precision cuts.

 Stay-level blade guard for operator safety.

 Rigid steel frame minimizes vibrations and assures

accurate cutting.

 Mechanical Water Pump Kit (Gasoline Model Only)

 Electric Submersible Water Pump Kit (Electric Models

Only).

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 11

SAW COMPONENTS

PAGE 12 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

Figure 2. Saw Components

SAW COMPONENTS

Figure 2 shows the location of the basic components of
the MP2 Saw. Listed below is a brief explanation of each
component.

1. Ruler Backstop — When cutting, place material
against backstop. Use measurement rail (ruler) to
determine where material is to be cut.

2. Miter Box — For angled cuts, place the lip of the miter
box on the measurement rail with the threaded thumb
knob facing you and tighten.

3. Water Tray — When wet cutting is required, fill with
clean fresh water. Make sure the water pump is totally
immersed in water before cutting.

4. Cutting Head Handle — Grab hold of this handle to
control the movement of the cutting head as you step
on the Blade Raise/Lower Foot Pedal.

5. Blade Guard — Protects the user from the cutting
blade. NEVER operate the saw with the blade guard
removed.

6. Spindle Bolt/Outside Blade Flange — When
mounting of the cutting blade is required, remove the
spindle bolt and outside blade flange. Align cutting
blade with inside flange arbor and reassemble spindle
and outside blade flange.

7. Power ON/OFF Box — This box is used on electric
models saws only. To turn on the saw place in the
ON (I) position. Place in the OFF (0) position to shut­down the saw.

8. V-belt Cover — Remove this cover to access the drive
V-belt. NEVER operate the saw with the V-belt cover
removed.

9. Electric Motor/Conduit Box — This unit uses 2
different types of electric motors and voltages (see
Table 2). Plug the water pump (electric models only)
power cord into the AC receptacle located on the
conduit box.

10. Mounting Plate — Supports the electric motor/
gasoline engine. Plate has slotted holes for horizontal
(right-side) and vertical (left-side) adjustment of cutting
head.

11. Mounting Plate Handle — Grip this handle (rear) to
lift the mounting plate.

12. Tie Rod — The tie rod length has been set at the
factory for best blade guard position for the majority
of the cutting that will be done.

13. Splash Guard — Keeps water and debris from leaving
the water tray.

14. Stopper — Place stopper in tray when filling with water.

15. Electric Water Pump — For best results place the
pump between the splash shield and the rear of the
water tray. This is for electric models only. Plug water
pump power cord into AC receptacle on electric motor
conduit box. NEVER run pump dry. Pump must be
immersed in water.

16. Blade Raise/Lower Crank Handle — Use this handle
to set the maximum cutting depth of the MP2 Masonry
Saw. Turn clockwise to LOWER the blade. Turn
counterclockwise to RAISE the blade.

17. Blade Raise/Lower Foot Pedal — Step on the pedal
to lower the blade for cutting. Gently step off the pedal
to raise the blade when finished cutting.

18. Spring Tensioner — Connects to the foot pedal bar
to allow for an easy up and down movement of the
mounting plate and blade.

19. Forklift Pockets — Use to easily move the MP2
Masonry Saw from one location to another. When
moving the saw, ensure that the forks pass completely
through the pockets on both sides of the machine
before attempting to lift the MP2.

20. Mechanical Water Pump — This pump is used on
gasoline models only. Saw is shipped from the factor
for wet cutting applications (pump handle down). Place
pump handle upwards to disengage pump. NEVER
run pump dry.

21. Engine — The gasoline model saws use an 8.5 HP
Honda GX270, 4-stroke, OHV, single cylinder, air­cooled gasoline engine.

22. V-belt Cover (Gasoline Only) — Remove this cover
to access the engine shaft-side V-belt. NEVER operate
the saw with the V-belt cover removed.

23. Water Lines — Replace the clear vinyl tubing water
lines when they become brittle, worn or clogged. Water
kits are available through your dealer.

24. Strainer — For best results place the strainer between
the splash shield and the rear of the water tray. This
is for gasoline models only. NEVER run pump dry.
Strainer must be immersed in water.

25. Priming Bulb — Squeeze this bulb to prime the
mechanical water pump (gasoline models only).

26. Blade Wrench — Use this tool to mount and remove
cutting blade.

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 13

ELECTRIC MOTOR COMPONENTS

Figure 3. Electric Motor Components

HEAVY DUTY ELECTRIC MOTORS

The MP2 Saw can be equipped with several different models
of electric motors. Figure 4 shows the basic components of
the electric motor. Refer to the manufacturers electric motor
manual for instructions & details of operation and servicing.

1. Electric Motor — The MP2 saw can be operated with
either a Single Phase or Three Phase 230V motor. Only
qualified electricians should service the motor.

WARNING

All saws equipped with three phase motors should
be wired by a qualified electrician and correct motor
rotation verified before operating the saw.

2. Power ON/OFF Box — To turn on the saw, place
switch in the ON position. Place in the OFF position to
shutdown the saw.

3. Electric Motor Reset Switch — This switch is part of
the thermal overload protection for the electric motor. If
the motor overheats and shuts down, press this switch
to reset the motor, after allowing the motor to cool down.
This is used on Single phase electric saws only.

4. Water Pump AC Power Receptacle — Plug the
electric water pump into this receptacle to provide
power to the pump during saw operation. Unplug the
electric water pump from this receptacle when dry
cutting.

5. Electric Motor Wiring Pigtail — The saw motor ships
with cable "pigtails." Have an licenced electrician
supply and install the appropriate NEMA connector.

DANGER

NEVER grab or touch a live

power cord with wet hands, the
possibility exists of electrical shock,
electrocution, and even death!

NEVER use a damaged or worn

extension cable when connecting
to a power source. Defective cables may cause damage
to the saw’s electric motor or electrical shock.

PAGE 14 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

ENGINE COMPONENTS

10

9

8

7

6

5

4

Figure 4. Engine Components

1

2

3

INITIAL SERVICING

The engine (Figure 4) must be checked for proper
lubrication and filled with fuel prior to operation. Refer to the
engine manufacturer’s manual for instructions and details
of operation and servicing.

1. Fuel Filler Cap — Remove this cap to add unleaded
gasoline to the fuel tank. Make sure cap is tightened
securely. DO NOT over fill.

DANGER

Adding fuel to the tank should be done
only when the engine is stopped and has
had an opportunity to cool down. In the
event of a fuel spill, DO NOT attempt to

start the engine until the fuel residue has
been completely wiped up, and the area surrounding
the engine is dry.

2. Throttle Lever — Used to adjust engine RPM speed
(lever advanced forward SLOW, lever back toward
operator FAST).

3. Engine ON/OFF Switch — ON position permits engine
starting, OFF position stops engine operations.

4. Recoil Starter (pull rope) — Manual-starting method.
Pull the starter grip until resistance is felt, then pull
briskly and smoothly.

5. Fuel Valve Lever — OPEN to let fuel flow, CLOSE to
stop the flow of fuel.

6. Choke Lever — Used in the starting of a cold engine,
or in cold weather conditions. The choke enriches the
fuel mixture.

7. Air Cleaner — Prevents dirt and other debris from
entering the fuel system. Remove wing-nut on top of
air filter cannister to gain access to filter element.

NOTICE

Operating the engine without an air filter, with a
damaged air filter, or a filter in need of replacement
will allow dirt to enter the engine, causing rapid engine
wear.

WARNING

Engine components can generate extreme
heat. To prevent burns, DO NOT touch
these areas while the engine is running or
immediately after operating. NEVER operate
the engine with the muffler removed.

8. Spark Plug — Provides spark to the ignition system.
Set spark plug gap to 0.6 - 0.7 mm (0.028 - 0.031 inch)
Clean spark plug once a week.

9. Muffler — Used to reduce noise and emissions.

10. Fuel Tank — Holds unleaded gasoline. For additional
information refer to engine owner's manual.

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 15

SET-UP

WARNING

Whenever cleaning, adjusting or lubricating any part
of the saw, MAKE SURE to place the power ON/OFF
switch in the OFF position and disconnect the plug from
the power source.

ASSEMBLY (ELECTRIC POWERED SAWS ONLY)

1. Remove the MP2 Masonry Saw from its container and
place it on a stable, level surface. Make sure location
you choose can support the weight of the saw. The saw
location should be rigid and stationary so that the saw
will not move, sag, or sway due to the vibrations and
movements of the saw.

2. Connect the barb fitting to the water pump. Attach the
clear plastic water hose (Figure 5) coming from the
blade guard to the water pump.

3. Fill the water tray with clean fresh water. The water
pump intake must always be fully covered by water.
Also, keep the pump intake free of sludge, debris and
other materials that may accumulate in the tray.

4. Make certain that the water hose will not come in
contact with the blade or interfere with any moving
parts. The best location for the water pump/strainer is
between the splash shield and the rear of the water
tray. This will prevent some of the abrasive particles
from flowing through the pump.

5. Insert the water pump power plug into the outlet
receptacle on the electric motor conduit box as shown
in Figure 7.

Figure 6. Water Pump Power Connection

For three-phase motors, you may be required to install

a plug on the end of the water pump power cable,
which should have 3 wires exposed. Have a qualified
electrician install a male plug that has bee properly
rated for the equipment(230V).

Once a plug has been installed, insert the power plug

into the receptacle plug cord attached to the motor

CONVEYOR CART PLACEMENT

1. Place the conveyor cart across the water tray as shown
in Figure 7. Align the wheels of the cart with the outer
edge of the water tray. Push the cart back and forth, it
should move freely in both directions.

Figure 5. Water Tray/Water Pump

PAGE 16 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

Figure 7. Conveyor Cart Placement

SET-UP

BLADES

WARNING

Failure to thoroughly inspect the blade for
operational safety could result in damage to
the blades or the saw and may cause serious
injury to the user or others in the operating
area. Inspect the blade flanges and shaft for
damage before installing the blade.

Blade Components

Diamond blades are recommended for your saw. Ask your
Multiquip dealer about your specific cutting application.
Figure 8 highlights the components of a diamond blade.

SPECIFICATIONS

2

3

4

5

1

MAX.RPM

segment/rim. DO NOT use a blade that is missing
a segment or a portion of the rim. Damaged and/or

missing segments/rims may cause damage to your saw
and injury to the user or others in the operating area.

5. Specifications — Ensure that the blade specifications,

size, and diameter properly match up to the sawing
operation. Wet blades must have water to act as a coolant.
Utilizing a diamond blade not matched properly to the task
may result in poor performance and/or blade damage.

6. Arbor Hole — It is essential that the arbor hole

diameter properly matches the shaft arbor, and that it
is free from distortions. Correct blade flanges (collars)
must be used. The inside face of the flanges must be
clean and free of debris. An out of round arbor condition
will cause damage to the blade and the saw.

7. MAX RPM — This RPM reference is the maximum safe

operating speed for the blade selected. NEVER exceed
the max RPM on the diamond blade. Exceeding the MAX
RPM is dangerous, and may cause poor performance
and may damage the blade. All blades used must be
designed for the maximum spindle RPM.

7

6

Figure 8. Diamond Blade

1. Stress Relief Holes (Gullets) — Check the steel core
for cracks that may have propagated from the slots
and/or gullets. Cracks indicate extreme fatigue failure
and if sawing continues, catastrophic failure will occur.

2. Edge of the Steel Core — Check the diameter edge for
discoloration (blue oxidation) indicating an overheating
condition caused by insufficient cooling water/air.
Overheating of blades may lead to loss of core tension
and/or increase the possibility for blade failure. Check
to make sure the steel core’s width is uniform about
the rim of the blade, and not succumbing to an “under
cutting” condition brought about by highly abrasive
material or improper under cutting core protection.

3. Directional Arrow — Check to ensure that the blade is
oriented properly on the spindle for sawing. Reference the
directional arrow on the blade and place it so the direction
of rotation “downcuts” with the turn of the shaft.

4. Diamond Segment or Rim — Ensure that there are
no cracks, dings, or missing portions of the diamond

Blade Installation

1. Use the blade nut wrench (Figure 9) supplied with
the saw to install the cutting blade

2. Ensure the capacity of the blade guard matches the
diameter of your cutting blade.

3. Using the blade nut wrench, remove the blade shaft
nut and outside blade flange. Install the cutting
blade onto the inside blade flange arbor. Re-install
the outside blade flange and blade shaft nut. Tighten
securely. DO NOT overtighten.

Figure 9. Blade Installation

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 17

SET-UP

CONNECTING THE POWER

1. Place the power ON/OFF switch (Figure 10) in the OFF
position (down).

Figure 10. Power ON/OFF Switch

2. Connect an extension cord of adequate current carrying
capacity to the power plug on the electric motor.

3. MAKE CERTAIN that the correct size extension cord
is used. Undersized wires will burn out motors. Use
Table 4 to determine the correct extension cord size.

Table 4. Extension Cord Sizes

100 ft

(30.5 m)

Long

MOTOR

VO LTAGE

VAC

50 ft

(15. 2 m)

Long

75 ft

(22.9 m)

Long

DANGER

NEVER grab or touch a live

power cord with wet hands, the
possibility exists of electrical shock,
electrocution, and even death!

NEVER use a damaged or worn

extension cable when connecting
to a power source. Defective cables may cause damage
to the saw’s electric motor or electrical shock.

ALWAYS use a grounded (3-wire) extension cord
and MAKE CERTAIN that the motor is connected to
a properly grounded electric circuit. If possible use a
ground fault circuit interrupter to protect the operator
from possible electric shock.

4. The MP2 masonry saw is now ready for wet cutting.

WARNING

Adherence to the OSHA 2017 Ruling governing
Occupational Exposure to Respirable Crystalline
Silica, requires that all sawing operations MUST BE
conducted with an integrated water delivery system
that feeds water to the blade.

5 HP 1Ø 230 NO. 10 NO. 8 NO. 6

5 HP 3Ø 230 NO. 12 NO. 10 NO. 8

5 HP 3Ø 460 NO. 14 NO. 12 NO. 10

PAGE 18 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

SET-UP

WARNING

Whenever cleaning, adjusting or lubricating any part
of the saw, MAKE CERTAIN to stop the engine and
disconnect the spark plug wire from the spark plug

ASSEMBLY (GASOLINE POWERED SAWS ONLY)

1. Remove the saw from its container and place it on a
stable, level surface. Make sure location you choose
can support the weight of the saw. The saw location
should be rigid and stationary so that the saw will
not move, sag, or sway due to the vibrations and
movements of the saw

2. The gasoline powered saw uses a mechanical water
pump. This pump operates by drawing power from the
drive V-belts, and has been adjusted and locked for
wet cutting operation when shipped from the factory.

3. Fill the water tray with clean fresh water. The water

pump intake (strainer) must always be fully covered
by water to operate effectively. Also, keep the pump

intake free of sludge, debris and other materials that
may accumulate in the tray.

4. Make certain that the water hose will not come in
contact with the blade or interfere with any moving
parts. The best location for the water pump/strainer is
between the splash shield and the rear of the water
tray. This will prevent some of the abrasive particles
from flowing through the pump.

1. Loosen the 2 hex head cap screws (Figure 11) that
secure the pump mount bracket.

2. Push the pump handle downward to engage the
pump. The drive belt should have approximately 1/8
to 3/16 inch belt deflection.

3. Tighten the 2 hex head cap screws that secure the
pump mount bracket.

Figure 11. Pump Engage

4. With the engine running, squeeze the water pump
priming bulb (Figure 12) until water begins to flow
through the water lines. If the pump is working correctly,
the cutting blade should be covered with a steady water
mist. This will keep the blade cool while cutting.

WARNING

ALWAYS position the strainer in the water tray in
a manner that will allow the free movement of the
conveyor cart, and clearance from the cutting blade
and cutting action.

NOTICE

The mechanical water pump is shipped from the factory
for wet cutting applications.

WET CUTTING (GASOLINE ONLY)

To connect the mechanical water pump to the drive V-belts
perform the following:

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 19

Figure 12. Priming Bulb

SET-UP

BEFORE STARTING

1. Read safety instructions at the beginning of manual.

2. Clean the saw, removing dirt and dust, particularly
the engine cooling air inlet, carburetor and air cleaner.

3. Check the air filter for dirt and dust. If air filter is dirty,
replace air filter with a new one as required.

4. Check carburetor for external dirt and dust. Clean with
dry compressed air.

5. Check fastening nuts and bolts for tightness.

ENGINE OIL CHECK

1. To check the engine oil level, place the saw on a secure
level surface with the engine stopped.

2. Remove the filler dipstick from the engine oil filler hole
(Figure 17) and wipe clean.

Table 5. Oil Type

Season Temperature Oil Type

Summer 25°C or Higher SAE 10W-30

Spring/Fall 25°C~10°C SAE 10W-30/20

Winter 0°C or Lower SAE 10W-10

FUEL CHECK

DANGER

EXPLOSIVE FUEL!

Motor fuels are highly flammable and can
be dangerous if mishandled. DO NOT
smoke while refueling. DO NOT attempt
to refuel the compactor if the engine is
hot or running.

1. Remove the gasoline cap located on top of fuel tank.

2. Visually inspect to see if the fuel level is low. If fuel is
low, replenish with unleaded fuel.

Figure 13. Engine Oil Dipstick (Removal)

3. Insert and remove the dipstick without screwing it into
the filler neck. Check the oil level shown on the dipstick.

4. If the oil level is low (Figure 18), fill to the edge of the
oil filler hole with the recommended oil type (Table 5).
Maximum oil capacity is 0.63 quarts (0.60 liters)

3. When refueling, be sure to use a strainer for filtration.
DO NOT top-off fuel. Wipe up any spilled fuel

immediately!

Figure 14. Engine Oil Dipstick (Oil)

PAGE 20 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

OPERATION

START-UP PROCEDURE (ELECTRIC MOTOR)

NOTICE

Read and fully understand this manual before
starting or attempting to operate the saw.

Before starting the saw’s electric motor
make sure that the Safety, General Information, and
Set-Up sections have been completed and understood.
DO NOT proceed until the above mentioned sections
have been completed.

WARNING

ALWAYS wear approved eye and hearing

protection before operating the saw.

WARNING

NEVER place hands or feet inside the belt

guard or blade guard while the motor is
running. ALWAYS shut the motor down
before performing any kind of maintenance

WARNING

NEVER lift the blade guard while the blade

is rotating. The possibility exists of severe
bodily harm if fingers or hands come in
contact with the rotating saw blade. Wait
for the blade to stop rotating before lifting
the blade guard.

1. Turn the power ON/OFF switch (Figure 15) to the ON
position with the blade away from the material to be
cut, the cutting blade should begin to rotate. Before
cutting remember to follow all safety rules referenced
in this manual

WARNING

NEVER place hands and fingers near

the cutting blade. The possibility exists of
severe bodily harm if hands and fingers
come in contact with rotating saw blade.

WARNING

ALWAYS ensure that the cutting blade has

been mounted correctly.

DANGER

Figure 15. Power ON/OFF Switch (ON)

2. Avoid overloading the motor when cutting. The electric
motors are protected with a manual-reset thermal
overload switch that will turn the saw off if the motor is
overheated. In the event that the switch is tripped, turn
the ON/OFF switch to the OFF position and allow the
motor to cool before attempting to restart.

Shutdown Procedure

1. Place the power ON/OFF switch (Figure 16) in the OFF
position (down).

NEVER touch a live power cord with wet
hands. The possibility exists of electrical
shock, electrocution which could cause
severe bodily harm, even death.

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 21

Figure 16. Power ON/OFF Switch (OFF)

OPERATION

START-UP PROCEDURE (ENGINE)

NOTICE

Read and fully understand this manual before
starting or attempting to operate the saw.

Before starting the saw’s electric motor
make sure that the Safety, General Information, and
Set-Up sections have been completed and understood.
DO NOT proceed until the above mentioned sections
have been completed.

WARNING

NEVER operate the saw in a confined

area or enclosed area structure that
does not provide ample free flow of

air

WARNING

1. Place the engine fuel valve lever (Figure 17) to the
“ON” position.

Figure 17. Engine Fuel Valve Lever (ON Position)

2. Place the Engine ON/OFF switch (Figure 18) in the

"ON" position.

ALWAYS wear approved eye and hearing

protection before operating the saw.

WARNING

NEVER place hands or feet inside the belt

guard or blade guard while the motor is
running. ALWAYS shut the motor down
before performing any kind of maintenance

WARNING

NEVER place hands and fingers near

the cutting blade. The possibility exists of
severe bodily harm if hands and fingers
come in contact with rotating saw blade.

WARNING

ALWAYS ensure that the cutting blade has

been mounted correctly.

Figure 18. Engine ON/OFF Switch

3. Place the choke lever (Figure 19) in the “CLOSED”
position if starting a cold engine.

Figure 19. Choke Lever

NOTICE

The CLOSED position of the choke lever enriches the
fuel mixture for starting a COLD engine. The OPEN
position provides the correct fuel mixture for normal
operation after starting, and for restarting a warm
engine.

PAGE 22 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

4.

Rotate the throttle lever (Figure 20) halfway between

fast and slow for starting. All cutting is done at full
throttle. The engine governor speed is factory set to

ensure optimum blade operating speeds

Figure 20. Throttle Lever

5. Grasp the starter grip (Figure 28) and slowly pull it out.

The resistance becomes the hardest at a certain position,
corresponding to the compression point. Pull the starter
grip briskly and smoothly for starting.

OPERATION

WARNING

ALWAYS cut with the saw at FULL THROTTLE.
Attempting to cut with the saw at less than full throttle
could cause the blade to bind or stop abruptly in the
slab resulting in serious injury to the operator or others
in the area.

DANGER

ALWAYS be alert to the fact that there is a rotating

blade on the saw and be extremely aware of your body
position — especially your hands in relationship to the
rotating blade. The possibility exists of severe bodily
harm or even death if your body comes in contact with
the rotating saw blade.

9. Avoid overloading the engine when cutting. In the

event that the engine becomes overloaded, turn the
engine ON/OFF switch to the OFF position and allow
the engine to cool before attempting to restart.

Figure 21. Starter Grip

6. If the engine has started, slowly return the choke lever
(Figure 19) to the "OPEN" position. If the engine has
not started repeat steps 1 through 5.

7. Before the saw is placed into operation, run the engine
for several minutes. Check for fuel leaks, and noises
that would associate with a loose guards and/or covers.

8. Gradually move the engine throttle lever toward the
fast position. (All cutting should be done at full throttle)
Squeeze the water pump priming bulb (Figure 22) until
water begins to flow through the water lines. If the pump
is working correctly, the cutting blade should be covered
with a steady water mist. This will keep the blade cool.

STOPPING

CAUTION

Engine components can generate
extreme heat. To prevent burns, DO
NOT touch these areas while the
engine is running or immediately
after operations. NEVER operate
the engine with heat shields or heat
guards removed.

1. Set the engine throttle lever to slow speed and let the
engine idle for 3-5 minutes.

2. Turn the engine ON/OFF switch to the "OFF" position.

3. Place the fuel valve lever in the closed position.

4. Let the engine cool.

5. Using a soft cloth, clean any excess debris or residue
that may have accumulated on the saw.

6. Store saw in a clean dry location where it will be out
of the reach of children.

Figure 22. Priming Bulb

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 23

OPERATION

The MP2 Masonry Saw has two methods available for
cutting: Using the step pedal to lower the blade into the
material or fixing the height of the blade before cutting
using the raise/lower crank handle to allow for a constant
cutting depth.

DANGER

ALWAYS be alert to the fact that there is a rotating

blade on the saw and be extremely aware of your body
position — especially your hands in relationship to the
rotating blade. The possibility exists of severe bodily
harm or even death if your body comes in contact with
the rotating saw blade.

"FIXED HEIGHT" CUTTING METHOD

1. Using the Raise/Lower Crank Handle, located above
the step pedal, turn the handle CLOCKWISE to
LOWER the saw blade to the required depth (Figure

23). Turn the handle COUNTERCLOCKWISE to
RAISE the saw blade to the required depth.

3. With the blade away from the material to be cut, start
the Motor (or Engine) using the steps listed in the
Startup/Shutdown Procedure (Electric Motors or
Gasoline Engine).

4. Push the conveyor cart, with the material in place,
slowly and evenly until the cut is complete. When
finished cutting, move the cart back and remove the
cut pieces.

"STEP PEDAL" CUTTING METHOD

1. Place the material to be cut (Figure 24) on the conveyor
cart against the backstop.

2. With the blade away from the material to be cut, start
the Motor (or Engine) using the steps listed in the
Startup/Shutdown Procedure (Electric Motors or
Gasoline Engine).

3. Move the conveyor cart, with the material in place,
under the blade. Using your foot, depress the step
pedal using a slow even pressure to lower the blade
for cutting (Figure 25).

Figure 23. Raise/Lower Crank Handle

2. Place the material to be cut (Figure 24) on the conveyor
cart against the backstop.

Figure 24. Material Placement

PAGE 24 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

Figure 25. Raise/Lower Step Pedal

4. When finished cutting, slowly lift your foot up to raise
the blade away from the conveyor cart and your cut
material. Hold on to the mounting plate handle to
prevent the plate from rising rapidly, possibly causing
the saw to become unstable. DO NOT remove your
foot from the step pedal until the blade has fully raised.

MAINTENANCE

A good preventive maintenance program of regular
inspection and care will increase life and improve the
performance of the saw and cutting blades.

WARNING

Whenever cleaning, adjusting, or lubricating any part of
the saw, MAKE CERTAIN to do the following:

Electric Powered Saws

• Place power ON/OFF switch to the OFF position.

• Disconnect power cord from AC source.

• NEVER attempt to check the V-belt with the engine
running. Severe bodily injury can occur.

Gasoline Powered Saws

• Turn the engine switch to the OFF position,
disconnect the spark plug wire and secure it away
from the spark plug.

• NEVER attempt to check the V-belt with the engine
running. Severe bodily injury can occur.

BASIC MAINTENANCE

1. Tighten loose nuts or screws and replace any cracked
or broken parts.

4. After each day's use, clean the sludge from the bottom
of the tray and run clean water through the water pump
and water hoses. This extends pump and blade life.

5. Lubricate the blade adjustment rod after every 8 hours
of use.

6. Check the spindle bolt for tightness periodically.

7. Keep the drive belts tight. It is very important to replace
worn belts as soon as possible.

8. MAKE CERTAIN that the cutting head is aligned
properly. Misalignment can adversely affect blade life.

9. The blade flanges must have a diameter of 4 in.
Undersize flanges will reduce blade life and cause
breakage. Therefore, they should be replace at once.

BEARING LUBRICATION CARE

There are two (2) grease points (Figure 26) for the MP2
(Electric Motors) and four (4) grease points for the MP2
(Gasoline Engine). Use only Premium Lithium 12 based
Grease, conforming to NLG1 Grade #1 consistency. Grease
daily.

2. Clean the machine frequently. DO NOT use aggressive
cleaners (i.e. containing solvents). DO NOT use high
high-pressure water jets, aggressive detergents or
solutions and liquids with a temperature exceeding
86°. Use a fluff-free cloth only. Use a cloth which may
be lightly moistened only for removing dust and dirt.
Hard packed dirt can be removed with a soft brush.

DO NOT let any water/cleaning liquid/vapor penetrate

into the electric motor, connectors/plugs, switches, etc.
Cover all apertures, holes in the housing, connectors
or plugs, etc, or seal them with adhesive tape.

Use a soft, low-pressure water jet and a brush to rinse

dirt and incrustations away. Be particularly careful when
near hazardous parts of the machine (e.g. switch,
motor). Clean the motor and switches only by wiping
with a moist cloth.

3. Clean the sludge that accumulates on the bottom of
the water tray at least once a day and refill with clean
water. It may be necessary to clean the tray out twice
a day in heavy cutting. The sludge is abrasive and will
shorten the life of the blades.

Figure 26. Zerk Fittings Lubrication

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 25

MAINTENANCE

ADJUST BELT TENSION (GASOLINE POWERED
SAWS)

1. Remove engine-to-jackshaft and jackshaft-to­bladeshaft belt guards.

2. Check for proper belt tension on jackshaft-to-bladeshaft
belts and engine-to-jackshaft belts.

3. 4-5 lbs of force applied to the mid-point between
jackshaft and bladeshaft pulleys should deflect the belt
approximately 3/16" on a used belt.

4. 4-5 lbs of force applied to the mid-point between
engine and jackshaft pulleys should deflect the belt
approximately 1/8".

To adjust engine-to-jackshaft belts only:

1. Loosen engine mounting bolts.

2. Adjust engine adjusting nuts to apply proper tension
while maintaining pulley alignment and belt parallelism.
Check pulley alignment and parallelism with a straight
edge from jackshaft pulley to engine pulley.

3. When proper belt tension and parallelism have been
achieved, tighten engine mounting bolts.

To adjust jackshaft-to-bladeshaft belt:

5. Adjust engine adjuster bolts to apply proper tension
while maintaining pulley alignment and belt parallelism.
Check pulley alignment and parallelism with a straight
edge from jackshaft pulley to engine pulley.

6. When proper belt tension and parallelism have been
achieved, tighten engine mounting bolts.

7. Reinstall belt guards. Test saw operation.

Adjust Belt Tension (Electric Powered Saws)

1. Remove the three belt guard screws securing the belt
guard to the frame and remove the belt guard.

2. Loosen the four motor mounting bolts.

3. To increase belt tension, tighten the two adjusting nuts
on the back of the motor plate. Proper belt tension is 4-5
lbs. of force with approximately 3/16" of belt deflection
measured at a point midway between the pulleys.

4. Adjust motor adjusting nuts to apply proper tension
while maintaining pulley alignment and belt parallelism.
Check pulley alignment and parallelism with a straight
edge from motor pulley to bladeshaft pulley.

5. When proper belt tension and parallelism have been
achieved, tighten engine mounting bolts and re-attach
the belt guard.

If the jackshaft-to-bladeshaft belt requires adjustment, it will
also be necessary to adjust the engine-to-jackshaft belts.

1. Loosen the 4 jackshaft mounting bolts, the 4 engine
mounting bolts, and the jackshaft adjuster screw jam
nuts (Loosen the mounting bolts only enough for the
jackshaft and the engine to slide easily.)

2. Adjust jackshaft-to-bladeshaft belt first. To increase
tension, tighten adjuster on bladeshaft belt side. To help
maintain belt parallelism, loosen the jackshaft adjuster
screw on the engine side the same number of turns
that the bladeshaft side adjuster screw was tightened.
Using a straight edge on the bladeshaft pulley to the
jackshaft pulley, check for pulley alignment and belt
parallelism.

3. When belt tension is correct, pulleys are aligned, and
belts are parallel, tighten jackshaft mounting bolts and
adjuster screw jam nuts.

4. Check for proper engine-to-jackshaft belt tension (4-5
lbs with 1/8" deflection at mid-point between pulleys.)

CUTTING HEAD ALIGNMENT (BLADE)

When cutting with the MP2 Masonry Saw, make certain the
cutting head is properly aligned horizontally and vertically
with the conveyor cart. Misalignment can adversely affect
blade life.

Horizontal Cutting Head Alignment:

1. Loosen the set screws for the engine mount bearings.

2. Adjust the position of the cutting head horizontally until
the blade is positioned within the middle of the cutting
groove (Figure 27).

3. Slide the conveyor cart forward and backward on the
tray to ensure that no part of the blade comes into
contact with the groove. If the blade touches the side of
the cart at any time, the cutting head is out of alignment.
Repeat steps 1-3 until corrected.

4. Tighten the set screws.

PAGE 26 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

MAINTENANCE

1. Using a square or other straight edge device, check the

vertical alignment of the blade by placing the bottom
of the square on the conveyor cart and the side of the
square against the blade (Figure 28).

2. If a gap exists between any part of the blade and

square, the cutting head is out of alignment.

Figure 27. Cutting Head Alignment (Horizontal)

Checking Vertical Cutting Head Alignment:

Use the following procedures to check the vertical cutting
head alignment. The MP2 Masonry Saw is factory shimmed
to ensure proper vertical alignment. Should the cutting head
become vertically misaligned, contact your local authorized
service center to have the cutting head realigned.

WARNING

It is very important that the jackshaft and blade shaft
remain parallel to each other. Self-alignment of the
cutting head could result in damage to your material,
machine or bodily injury.

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 27

Figure 28. Cutting Head Alignment (Vertical)

MAINTENANCE

Use Table 6 as a general maintenance guideline when servicing your engine. For more detail engine maintenance information,
refer to the engine owner’s manual supplied with your engine.

Table 6. Engine Maintenance Schedule

DESCRIPTION

(3)

Engine Oil

Air Cleaner

All Nuts and

Bolts

Spark Plugs

Cooling Fins Check X

Spark Arrester Clean X

Fuel Tank Clean X

Fuel Filter Check X

Idle Speed

OPERATION BEFORE

Check X

Change X

Check X

Change X (1)

Retighten if

necessary

Check/Clean X

Replace X

Check/

Adjust

X

FIRST

MONTH OR

10 HRS.

EVERY 3

MONTHS

OR 25 HRS.

EVERY 6

MONTHS

OR 50 HRS.

EVERY

YEAR

OR 100

HRS.

X (2)

EVERY 2

YEARS OR

200 HRS.

Valve

Clearance

Fuel Lines Check Every 2 years (replace if necessary) (2)

(1) Service more frequently when used in DUSTY areas.

(2) These items should be serviced by your service dealer, unless you have the proper tools and are mechanically
proficient. Refer to the HONDA Shop Manual for service procedures.

(3) For commercial use, log hours of operation to determine proper maintenance intervals.

Check/

Adjust

X (2)

PAGE 28 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

0.024-0.028 IN.

GAP

OIL FILLER CAP

BOLT

WASHER

MAINTENANCE

Perform the scheduled maintenance procedures as defined
below:

DAILY

Thoroughly remove dirt and oil from the engine and
control area. Clean or replace the air cleaner elements as
necessary. Check and retighten all fasteners as necessary.
Check the gearbox for oil leaks. Repair or replace as
needed.

WEEKLY

1. Remove the fuel filter cap and clean the inside of the
fuel tank.

2. Remove or clean the filter at the bottom of the tank.

3. Remove and clean the spark plug (Figure 29), then
adjust the spark gap to 0.024 ~0.028 inch (0.6~0.7 mm).
This unit has electronic ignition, which requires no
adjustments.

(0.6-0.7 MM.)

ENGINE AIR CLEANER

Remove the air cleaner cover and foam filter element as
shown in Figure 31.

Tap the paper filter element (Figure 31) several times on
a hard surface to remove dirt, or blow compressed air [not
exceeding 30 psi (207 kPa, 2.1 kgf/cm2)] through the filter
element from the air cleaner case side. NEVER brush
off dirt. Brushing will force dirt into the fibers. Replace the
paper filter element if it is excessively dirty.

Clean foam element in warm, soapy water or nonflammable
solvent. Rinse and dry thoroughly. Dip the element in clean
engine oil and completely squeeze out the excess oil from
the element before installing.

DANGER

DO NOT use gasoline as a cleaning solvent to avoid

creating the risk of fire or an explosion.

Figure 29. Spark Plug Gap

ENGINE OIL

1. Drain the engine oil when the oil is warm as shown in
Figure 30.

2. Remove the oil drain bolt and sealing washer and allow
the oil to drain into a suitable container.

3. Replace engine oil. Engine oil capacity is 1.16 quarts
(1.1 liters). DO NOT overfill.

4. Install drain bolt with sealing washer and tighten
securely.

DIPSTICK

Figure 30. Engine Oil (Draining)

DRAIN

SEALING

Figure 31. Engine Air Cleaner

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 29

WIRING DIAGRAM (ENGINE)

PAGE 30 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

TROUBLESHOOTING (BLADE)

Troubleshooting (Blades)

Symptom Possible Problem Solution

Blade slows or Stops cutting,still remains on
blade.

Blade too hard for the material being
cut?

Consult Dealer or Multiquip for correct blade. Try
cutting very soft material (sandstone, silica brick,
cinder block) to "Redress" the blade.

Engine Torgue diminished because of
loose V-Belts?

Tighten and/or replace V-Belts.

Insuffi cent Engine power? Check Throttle setting. Check Engine horespower.

Improper direction of rotation?

Check that the blade is oriented and rotational
arrow points are in a "Down-Cutting" direction.

Blade is slipping on the blade shaft?

Check that the blade and fl ange pin are properly
installed on the blade shaft.

Blade does not cut straight and/or true.

Blade being used on misaligned saw?

Check blade shaft bearings and alignment
integrity.

Blade is excessively hard for the material
being cut?

Check specifi cations of the blade with the
material being cut. Consult Dealer or Multiquip for
information.

Blade being used at improper RPM?

Ensure blade surface feet per minute speed
(SFPM) is approximately 6,000.

Blade improperly mounted on arbor
shoulders and fl anges?

Ensure blade is properly affi xed on the blade
shaft.

Excessive force applied to blade while
cutting?

Do not force the blade in the cut. Apply a slow,
steady pace to sawing.

Blade discoloring, crackling and/or wearing
excessively.

Blade too hard for the material being
cut?

Consult Dealer or Multiquip for correct blade. Try
cutting very soft material (sandstone, silica brick,
cinder block) to"Redress" the blade.

Blade improperly mounted on arbor
shoulders and fl anges?

Ensure blade is properly affi xed on the blade
shaft. Ensure the blade fl anges are clean and free
of debris.

Blade not receiving enough cooling
water?

Ensure proper fl ow and volume of water is
provided for blades.

Abor hole out of round?

Ensure blade is properly affi xed on the blade

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 31

TROUBLESHOOTING (ELECTRIC MOTOR)

Troubleshooting (Electric Motor)

Symptom Possible Cause Solution

Is there power?

Is power cable plugged in? Plug in power cable.

Electric motor will not start.

Is ON/OFF switch placed in ON
position?

Defective cable? Check cable.

Electric motor continuously stops. Reset button OK? Check power source.

Electric motor RPM's too low. Low voltage? Check input voltage.

Electric motor RPM's too high. High voltage? Check input voltage.

Check power source. Check reset
button.

Place ON/OFF switch in ON position.

PAGE 32 — MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17)

Symptom Possible Problem Solution

Diffi cult to start, fuel is available, but no spark at
spark plug.

Diffi cult to start, fuel is available, and spark is
present at the spark plug.

Diffi cult to start, fuel is available, spark is
present and compression is normal.

Diffi cult to start, fuel is available, spark is
present and compression is low.

No fuel present at carburetor.

TROUBLESHOOTING (ENGINE)

Troubleshooting (Engine)

Spark plug bridging? Check gap, insulation or replace spark plug.

Carbon deposit on spark plug? Clean or replace spark plug.

Short circuit due to defi cient spark plug
insulation?

Improper spark plug gap? Set to proper gap.

Spark plug is red? Check transistor ignition unit.

Spark plug is bluish white?

No spark present at tip of spark plug?

No oil? Add oil as required.

Oil pressure alarm lamp blinks upon starting? (if
applicable)

ON/OFF switch is shorted? Check switch wiring, replace switch.

Ignition coil defective? Replace ignition coil.

Improper spark gap, points dirty? Set correct spark gap and clean points.

Condenser insulation worn or short circuiting? Replace condenser.

Spark plug wire broken or short circuiting? Replace defective spark plug wiring.

Wrong fuel type?

Water or dust in fuel system? Flush fuel system.

Air cleaner dirty? Clean or replace air cleaner.

Choke open? Close choke.

Suction/exhaust valve stuck or protruded? Reseat valves.

Piston ring and/or cylinder worn? Replace piston rings and/or piston.

Cylinder head and/or spark plug not tightened
properly?

Head gasket and/or spark plug gasket damaged? Replace head and spark plug gaskets.

No fuel in fuel tank? Fill with correct type of fuel.

Fuel cock does not open properly?

Fuel fi lter/lines clogged? Replace fuel fi lter.

Fuel tank cap breather hole clogged? Clean or replace fuel tank cap.

Air in fuel line? Bleed fuel line.

Check spark plug insulation, replace if worn.

If insuffi cient compression, repair or replace
engine. If injected air leaking, correct leak. If
carburetor jets clogged, clean carburetor.

Check transistor ignition unit is broken, and
replace defective unit. Check if voltage cord
cracked or broken and replace. Check if spark
plug if fouled and replace.

Check automatic shutdown circuit, "oil sensor".
(if applicable)

Flush fuel system, replace with correct type of
fuel.

Torque cylinder head bolts and spark plug.

Apply lubricant to loosen fuel cock lever,
replace if necessary.

MP2 SERIES MASONRY SAW • OPERATION MANUAL — REV. #3 (10/17/17) — PAGE 33

OPERATION MANUAL

HERE’S HOW TO GET HELP

© COPYRIGHT 2017, MULTIQUIP INC.

Multiquip Inc

are registered trademarks of Multiquip Inc. and may not be used, reproduced, or altered without written permission. All other

trademarks are the property of their respective owners and used with permission.

This manual

The information and specifi cations included in this publication were in effect at the time of approval for printing. Illustrations, descriptions, references and technical data contained in
this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change specifi cations, design or the information published
in this publication at any time without notice and without incurring any obligations.

PLEASE HAVE THE MODEL AND SERIAL

NUMBER ON-HAND WHEN CALLING

UNITED STATES

Multiquip Corporate Office MQ Parts Department

18910 Wilmington Ave.
Carson, CA 90746
Contact: [e-mail]

Service Department Warranty Department

800-421-1244
310-537-3700

Technical Assistance

800-478-1244 Fax: [phone]

CANADA

Multiquip Multiquip (UK) Limited Head Office

4110 Industriel Boul.
Laval, Quebec, Canada H7L 6V3
Contact: [e-mail]

Tel. [phone]
Fax [phone]

Tel: [phone]
Tel: [phone]
Fax: [phone]

800-427-1244
310-537-3700

800-421-1244
310-537-3700

UNITED KINGDOM

Unit 2, Northpoint Industrial Estate,
Globe Lane,
Dukinfield, Cheshire SK16 4UJ
Contact: [e-mail]

Fax: [phone]

Fax: [phone]

Tel: [phone]
Fax: [phone]

, the MQ logo and the Whiteman logo

MUST accompany the equipment at all times. This manual is considered a permanent part of the equipment and should remain with the unit if resold.

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