MULTIQUIP MC44SH Guide

OPERATION AND PARTS MANUAL

THIS MANUAL MUST ACCOMPANYTHE EQUIPMENT AT ALLTIMES.

MODEL

MC44SH

MC44SE

CONCRETE MIXER

(

HONDA GX120 SERIES

GASOLINE ENGINES)

Revision #10 (08/30/19)

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PAGE 2 — MC44S CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #10 (08/30/19)

itsconstituents,andsomedustcreated

of California to cause cancer, birth

defects and other reproductive harm.

by power sanding, sawing, grinding,

drillingandotherconstructionactivities

contains chemicals known to the State

Someexamplesofthesechemicalsare:

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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MC44S CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #10 (08/30/19) — 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,mists andfumescannot

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 — MC44S CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #10 (08/30/19)

TABLE OF CONTENTS

MC44S Concrete Mixer

Fuel and Chemical Exposure Warnings .................. 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

Towing Guidelines ................................................. 19

Safety Chain Connection....................................... 20

Inspection ........................................................ 21–22

Start-Up .......................................................... 23–24

Operation......................................................... 25–26

Maintenance (Engine) ..................................... 27–29

Maintenance (Mixer)........................................ 30–33

Troubleshooting (Engine)................................. 34–35

Explanation of Code in Remarks Column.............. 36

Suggested Spare Parts ......................................... 37

Component Drawings

Nameplate and Decals Assembly.................... 38–39

Steel Barrel Assembly ..................................... 40–41

Main Frame Assembly..................................... 42–43

Axle Assembly ................................................. 44–45

Cabinet Assembly............................................ 46–47

Gas Engine Mounting Plate Assembly ............ 48–49

Electric Motor Mounting Plate Assembly......... 50–51

Engine Service Parts....................................... 52–53

NOTICE

Speciﬁcations and part numbers are subject to change

without notice.

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MC44S CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #10 (08/30/19) — PAGE 5

NOTES

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PAGE 6 — MC44S CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #10 (08/30/19)

TRAINING CHECKLIST

Training Checklist

No, Description OK? Date

1Read operation manual

completely.

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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MC44S CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #10 (08/30/19) — 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 — MC44S CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #10 (08/30/19)

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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MC44S CONCRETE MIXER • OPERATION AND PARTS MANUAL — REV. #10 (08/30/19) — 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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