MULTIQUIP MC94SH Guide

OPERATION AND PARTS MANUAL
THIS MANUAL MUST ACCOMPANYTHE EQUIPMENT AT ALLTIMES.
MODEL
MC94SH/MC94PH
MC94SE/MC94PE
CONCRETE MIXER
(HONDA GX240 SERIES GASOLINE ENGINES
AND 1.5 HP ELECTRIC MOTOR)
Revision #12 (09/05/19)
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PAGE 2 — MC94S/P CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #12 (09/05/19)
PROPOSITION 65 WARNING
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MC94S/P CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #12 (09/05/19) — PAGE 3
Grinding/cutting/drillingofmasonry,concrete,metaland
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
mentionedabove.
WARNING
Grinding/cutting/drillingofmasonry,concrete,metaland
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
hazardsfrom inhalationofdust, mistsandfumes cannot
be eliminated, the operator and any bystanders should
always wear a respirator approved by NIOSH/MSHAfor
thematerialsbeingused.
WARNING
SILICOSISWARNING RESPIRATORY HAZARDS
SILICOSIS/RESPIRATORY WARNINGS
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PAGE 4 — MC94S/P CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #12 (09/05/19)
TABLE OF CONTENTS
MC94P/S Series
Concrete Mixers
Proposition 65 Warning ........................................... 2
Silicosis/Respiratory Warnings ................................ 3
Table of Contents..................................................... 4
Training Checklist .................................................... 6
Safety Information ............................................. 7–12
Mixer Specifications/Noise and Vibration .............. 13
Engine/Electric Motor Specifications ..................... 14
General Information............................................... 15
Basic Components (Mixer) .................................... 16
Engine Components.............................................. 17
Electric Motor Components ............................. 18–19
Towing Guidelines ................................................. 20
Safety Chain Connection....................................... 21
Inspection ........................................................ 22–23
Start-Up .......................................................... 24–25
Operation......................................................... 26–27
Maintenance (Engine) ..................................... 28–31
Maintenance (Mixer)........................................ 31–34
Troubleshooting (Mixer) ......................................... 35
Troubleshooting (Engine)................................. 36–37
Explanation of Code in Remarks Column.............. 38
Suggested Spare Parts ......................................... 39
Component Drawings
Nameplate and Decals Assembly.................... 40–41
Plastic Barrel Assembly................................... 42–43
Steel Barrel Assembly ..................................... 44–45
Main Frame Assembly..................................... 46–47
Axle Assembly ................................................. 48–49
Cabinet Assembly............................................ 50–51
Gas Engine Mounting Plate Assembly ............ 52–53
Electric Motor Mounting Plate Assembly......... 54–55
Engine Service Parts....................................... 56–57
NOTICE
Specifications and part numbers are subject to change
without notice.
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MC94S/P CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #12 (09/05/19) — PAGE 5
NOTES
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PAGE 6 — MC94S/P CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #12 (09/05/19)
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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MC94S/P CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #12 (09/05/19) — PAGE 7
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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PAGE 8 — MC94S/P CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #12 (09/05/19)
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
on 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 or older.

Whenever necessary, replace nameplate, operation and
safety decals when they become difficult to 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 the 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.
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.
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MC94S/P CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #12 (09/05/19) — PAGE 9
SAFETY INFORMATION
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 the mixer, ensure that the 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 the mixer is on level ground before mixing.

Fix damage to the machine and replace any broken
parts immediately.

DO NOT tip the mixer onto the 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.

ALWAYS make sure the mixer is clean of dried materials.
DO NOT allow material to build up inside the drum. Keep
the drum, frame and wheels clean. Excess debris can
fall off on the highway and/or build up on the frame and
wheels, creating an unbalanced condition leading to
premature metal fatigue.
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 the free flow
of 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 the engine
compartment when the 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 the equipment.

Make certain the operator knows how to and is capable
of turning the engine OFF in case of an emergency.
NOTICE
NEVER
run the engine without an air filter or with a dirty
air filter. Severe engine damage may occur. Service the
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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