MULTIQUIP MC12PH Guide

OPERATION AND PARTS MANUAL
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
MODEL MC12PH
CONCRETE MIXER
(HONDA GX340UT2QA2/GX340UT2QAP2
GASOLINE ENGINES)
Revision #1 (09/02/15)
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PAGE 2 — MC12PH CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #1 (09/02/15)
its constituents, and some dust created
of California to cause cancer, birth
defects and other reproductive harm.
by power sanding, sawing, grinding,
drillingandotherconstructionactivities
contains chemicals known to the State
Some examples of these chemicals are:
Leadfromlead-basedpaints.
Crystallinesilicafrombricks.
Cementandothermasonryproducts.
Arsenicandchromiumfromchemically
treatedlumber.
Your risk from these exposures varies,
dependingonhowoftenyoudothistype
of work. To reduce your exposure to
these chemicals: work in aALWAYS
well ventilated area, and work with
approved safety equipment, suchas
dust masks that are specially designed
to filter out microscopic particles.
Gasoline engine exhaust and some of
FUEL AND CHEMICAL EXPOSURE WARNINGS
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MC12PH CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #1 (09/02/15) — PAGE 3
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.Inaddition, 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.
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.
WARNING
SILICOSIS WARNING RESPIRATORY HAZARDS
SILICOSIS/RESPIRATORY WARNINGS
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PAGE 4 — MC12PH CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #1 (09/02/15)
TABLE OF CONTENTS
MC12PH CONCRETE
MIXER
Fuel And Chemical Exposure Warnings.................. 2
Silicosis/Respiratory Warnings ................................ 3
Table Of Contents.................................................... 4
Training Checklist .................................................... 5
Safety Information .............................................. 6-11
Specifications/Dimensions..................................... 12
Engine Specifications ............................................ 13
General Information............................................... 14
Basic Components ................................................ 15
Engine Components.............................................. 16
Towing Guidelines ................................................. 17
Safety Chain Connection....................................... 18
Inspection ......................................................... 19-20
Start-Up ................................................................. 21
Start-Up/Operation ................................................ 22
Operation............................................................... 23
Maintenance (Engine) ...................................... 24-29
Troubleshooting ................................................ 30-31
Explanation Of Code In Remarks Column............. 32
Suggested Spare Parts ......................................... 33
Component Drawings
Nameplate And Decals Assembly .................... 34-35
Drum Assembly ................................................ 36-37
Frame Assembly............................................... 38-39
Axle Assembly .................................................. 40-41
Cabinet Assembly............................................. 42-43
Mounting Plate Assembly................................. 44-45
Honda GX340UT2QA2/QAP2
Gasoline Engines
Recoil Starter Assembly ................................... 46-47
Fan Cover Assembly......................................... 48-49
Carburetor Assembly........................................ 50-51
Air Cleaner Assembly....................................... 52-53
Muffler Assembly .............................................. 54-55
Fuel Tank Assembly.......................................... 56-57
Flywheel Assembly........................................... 58-59
Cylinder Head Assembly................................... 60-61
Ignition Coil Assembly ...................................... 62-63
Control Assembly ............................................. 64-65
Cylinder Barrel Assembly.................................. 66-67
Crankcase Cover Assembly ............................. 68-69
Crankshaft Assembly........................................ 70-71
Piston Assembly ............................................... 72-73
Camshaft Assembly.......................................... 74-75
Label Assembly ................................................ 76-77
Terms And Conditions Of Sale — Parts ................ 78
NOTICE
Specifications and part numbers are subject to change
without notice.
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MC12PH CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #1 (09/02/15) — PAGE 5
TRAINING CHECKLIST
Training Checklist
No, Description OK? Date
1Read operation manual
completely.
2
Machine layout, location of
components, checking of engine
oil levels.
3 Fuel system, refueling procedure.
4Operation of controls (machine
not running).
5Safety controls, safety stop switch
operation.
6 Emergency stop procedures.
7 Machine transport and storage.
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PAGE 6 — MC12PH CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #1 (09/02/15)
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 specifically address the level of exposure
to the operator and are preceded by one of four words:
DANGER, WARNING, CAUTION
or NOTICE.
SAFETY SYMBOLS
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.
NOTICE
Addresses practices not related to personal injury.
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.
Lethal exhaust gas hazards
Explosive fuel hazards
Burn hazards
Rotating parts hazards
Symbol Safety Hazard
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MC12PH CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #1 (09/02/15) — PAGE 7
SAFETY INFORMATION
GENERAL SAFETY
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 fitting 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
influence of drugs or alcohol.

ALWAYS clear the work area of any debris, tools, etc.
that would constitute a hazard while the equipment is
in operation.

ALWAYS check the equipment for loosened threads or
bolts before starting.

DO NOT use the equipment for any purpose other than
its intended purposes or applications.
NOTICE

This equipment should only be operated by trained and
qualified personnel 18 years of age and older.

Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.

Manufacturer does not assume responsibility for any
accident due to equipment modifications. Unauthorized
equipment modification will void all warranties.
NEVER
use accessories or attachments that are not
recommended by Multiquip for this equipment. Damage
to the equipment and/or injury to user may result.
ALWAYS know the location of the nearest
fire extinguisher.
ALWAYS know the location of the nearest
first aid kit.
ALWAYS know the location of the nearest phone or
keep
a phone on the job site.
Also, know the phone numbers
of the nearest ambulance, doctor and
fire department.
This information will be invaluable in the case of an
emergency.
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PAGE 8 — MC12PH CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #1 (09/02/15)
SAFETY INFORMATION
MIXER SAFETY
DANGER

NEVER operate the equipment in an explosive
atmosphere or near combustible materials.An
explosion or fire could result causing severe
bodily harm or even death.

DO NOT mix flammable or explosive substances.
WARNING

NEVER place your hands inside the drum
while starting or operating this equipment.

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.

Before operating mixer, ensure that safety grate is in
position and correctly fitted.
CAUTION

NEVER lubricate components or attempt service on a
running machine.
NOTICE

ALWAYS keep the machine in proper running condition.

ALWAYS ensure mixer is on level ground before mixing.

Fix damage to machine and replace any broken parts
immediately.

DO NOT tip mixer onto drum mouth when the drum is
rotating.

Ensure the drum is rotating while filling and emptying
the drum.

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.
ENGINE SAFETY (GASOLINE MODELS ONLY)
DANGER

Engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
cause death if inhaled.

The engine of this equipment requires an adequate
free flow of cooling air. NEVER
operate this equipment
in any enclosed or narrow
area where free flow of the
air is restricted. If the air
flow is restricted it will cause
injury to people and property
and serious damage to the
equipment or engine.
WARNING
DO NOT
place hands or fingers inside engine
compartment when engine is running.
NEVER
operate the engine with heat shields or
guards removed.
Keep fingers, hands hair and clothing away
from all moving parts to prevent injury.
DO NOT remove the engine oil drain plug
while the engine is hot. Hot oil will gush out of the oil
tank and severely scald any persons in the general area
of the mixer.
CAUTION
NEVER touch the hot exhaust manifold,
muffler or cylinder. Allow these parts to cool
before servicing equipment.

Make certain the operator knows how to and is capable
of turning the engine OFF in case of an emergency.
NOTICE
NEVER
run engine without an air filter or with a dirty air
filter. Severe engine damage may occur. Service air filter
frequently to prevent engine malfunction.
NEVER tamper with the factory settings
of the engine or engine governor. Damage
to the engine or equipment can result
if operating in speed ranges above the
maximum allowable.
DANGEROUS
GAS FUMES
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MC12PH CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #1 (09/02/15) — PAGE 9
SAFETY INFORMATION
FUEL SAFETY (GASOLINE MODELS ONLY)
DANGER

DO NOT start the engine near spilled fuel or combustible
fluids. Fuel is extremely flammable and its vapors can
cause an explosion if ignited.

ALWAYS refuel in a well-ventilated area, away from
sparks and open flames.

ALWAYS use extreme caution when working with
flammable liquids.

DO NOT fill the fuel tank while the engine is running
or hot.

DO NOT overfill tank, since spilled fuel could ignite if it
comes into contact with hot engine parts or sparks from
the ignition system.

Store fuel in appropriate containers, in well-ventilated
areas and away from sparks and flames.

NEVER use fuel as a cleaning agent.

DO NOT smoke around or near the
equipment. Fire or explosion could result
from fuel vapors or if fuel is spilled on a
hot engine.
GENERATOR SAFETY
If using a generator to power mixer, refer to
applicable generator manual safety information
section.
ELECTRIC MOTOR SAFETY
(ELECTRIC MODELS ONLY)
NOTICE

Operate electric motor only at the specified voltage
indicated on the nameplate.

DO NOT spray water onto electric motor.

ALWAYS disconnect AC power plug from power source
before moving mixer.

ALWAYS make sure the ON/OFF switch
on the electric motor is in the OFF position
when not in use and before inserting the
mixer’s power plug into an AC receptacle.
Power Cord/Cable Safety
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.
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 mixer.
CAUTION

Ensure that cables and cords will not be tripped over or
trapped underneath the mixer.
NOTICE
ALWAYS
make certain that proper power or extension
cord has been selected for the job.
TRANSPORTING SAFETY
CAUTION
NEVER
allow any person or animal to stand underneath
the equipment while lifting.
NOTICE
ALWAYS
make sure forklift forks are inserted into pockets
(if applicable) as far as possible when lifting the mixer.
ALWAYS shutdown engine before transporting.
NEVER lift the equipment while the engine is running.

Tighten fuel tank cap securely and close fuel cock to
prevent fuel from spilling.
DO NOT lift machine to unnecessary heights.
ALWAYS
tie down equipment during transport by
securing the equipment with rope.
NEVER
tip the engine to extreme angles during lifting as
it may cause oil to gravitate into the cylinder head, making
the engine start difficult.
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