Multiquip MC94S, MC94P User Manual

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OPERATION AND PARTS MANUAL

MODELS

MC94S

MC94P

CONCRETE MIXERS

Revision #8 (03/06/09)

To find the latest revision of this publication, visit our website at: www.multiquip.com

THIS MANUAL MUST ACCOMPANYTHE EQUIPMENT AT ALLTIMES.

PROPOSITION 65WARNING

Engine exhaust and some of its constituents, and some dust created by power sanding, sawing, grinding, drillingandotherconstructionactivities contains chemicals known to the State of California to cause cancer, birth defects and other reproductive harm. 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: 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 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

NOTES

MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09) — PAGE 3

MC94P/S CONCRETE MIXER — TABLE OF CONTENTS

MQ Multiquip MC94P/S

 

Concrete Mixers

 

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

2

Table Of Contents .....................................................

4

Parts Ordering Procedures .......................................

5

Specifications ............................................................

6

Dimensions (Mixer) ...................................................

7

Safety Message Alert Symbols .................................

8

Rules For Safe Operation ....................................

9-10

Operation and Safety Decals ..................................

11

General Information ................................................

12

Mixer Basic Components ........................................

13

Basic Engine Components ......................................

14

Handwheel Assembly..............................................

15

Towing Guidelines ...................................................

16

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

17

Electric Motor .....................................................

18-19

Pre-Inspection (Gasoline Engine) ...........................

20

Initial Start-up (Gasoline Engine)............................

21

Initial Start-up (Electric Motor) ................................

22

Operation ................................................................

23

Maintenance (Engine)........................................

24-25

Maintenance (Mixer) ..........................................

26-28

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

30

Troubleshooting (Engine/Mixer) ..............................

31

Explanation Of Code In Remarks Column ..............

32

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

33

HONDA GX240K1QA2 ENGINE

Air Cleaner Assembly.........................................

50-51

Camshaft Assembly ...........................................

52-53

Carburetor Assembly .........................................

54-55

Control Assembly ...............................................

56-57

Crankcase Cover Assembly ...............................

58-59

Crankshaft Assembly .........................................

60-61

Cylinder Barrel Assembly ...................................

62-63

Cylinder Head Assembly ....................................

64-65

Fan Cover Assembly ..........................................

66-67

Flywheel Assembly ............................................

68-69

Muffler Assembly ...............................................

70-71

Fuel Tank Assembly ...........................................

72-73

Ignition Coil ........................................................

74-75

Piston Assembly .................................................

76-77

Recoil Starter .....................................................

78-79

Label Assembly ..................................................

80-81

Terms and Conditions of Sale .................................

82

Componet Drawings

Nameplate and Decals.......................................

34-35

Mixer Assembly (Steel Drum) ............................

36-37

Mixer Assembly (Plastic Drum) ..........................

38-39

Main Frame Assembly .......................................

40-41

Axle Assembly ....................................................

42-43

Cabinet Assembly ..............................................

44-45

Gas Engine Mounting Plate Asasembly.............

46-47

Electric Motor Mounting Plate Asasembly .........

48-49

Specification and part number are subject to change without notice.

PAGE 4 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

www.multiquip.com

PARTS ORDERING PROCEDURES

 

 

 

 

 

 

Ordering parts has never been easier!

 

 

 

 

 

 

 

Choose from three easy options:

 

 

 

 

 

 

 

 

 

 

 

 

Effective:

 

 

 

 

 

 

 

 

 

 

 

 

January 1st, 2006

Best Deal! Order via Internet (Dealers Only):

 

 

If you have an MQ Account, to obtain a Username

 

 

 

Order parts on-line using Multiquip’s SmartEquip website!

 

 

 

 

 

 

 

and Password, E-mail us at: parts@multiquip.

 

 

 

 

N View Parts Diagrams

 

 

com.

 

 

 

 

N Order Parts

 

 

To obtain an MQ Account, contact your

 

 

 

 

N Print Specification Information

 

 

District Sales Manager for more information.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Goto www.multiquip.com and click on

 

 

Use the internet and qualify for a 5% Discount

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

on Standard orders for all orders which include

 

 

 

 

 

 

Order

Parts

to log in and save!

 

 

 

 

 

 

 

 

 

 

 

 

complete part numbers.*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: Discounts Are Subject To Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Order via Fax (Dealers Only):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fax your order in and qualify for a 2% Discount

 

 

 

 

 

 

 

All customers are welcome to order parts via Fax.

 

on Standard orders for all orders which include

 

 

 

 

 

 

 

 

 

 

 

 

 

Domestic (US) Customers dial:

 

complete part numbers.*

 

 

 

 

 

 

1-800-6-PARTS-7 (800-672-7877)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Note: Discounts Are Subject To Change

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Order via Phone: Domestic (US) Dealers Call:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1-800-427-1244

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Non-Dealer Customers:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

International Customers should contact

 

 

 

Contact your local Multiquip Dealer for

 

 

 

 

 

 

 

 

 

their local Multiquip Representatives for

 

 

 

parts or call 800-427-1244 for help in

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Parts Ordering information.

 

 

 

locating a dealer near you.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

When ordering parts, please supply:

R

Dealer Account Number

R Specify Preferred Method of Shipment:

R

Dealer Name and Address

UPS/Fed Ex

DHL

R

Shipping Address (if different than billing address)

N Priority One

Truck

R

Return Fax Number

N Ground

 

N Next Day

 

R

Applicable Model Number

 

N Second/Third Day

 

 

 

 

RQuantity, Part Number and Description of Each Part

NOTICE

All orders are treated as Standard Orders and will ship the same day if received prior to 3PM PST.

WE ACCEPT ALL MAJOR CREDIT CARDS!

MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09) — PAGE 5

MC94P/S CONCRETE MIXER — SPECIFICATIONS

Table 1. Specifications (Engines/Electric Motor)

 

Model

HONDA GX240K1QA2

Baldor 35LYL229

 

 

 

 

 

Type

Air-cooled 4 stroke, Single Cylinder,

1.5 HP, Single-phase 115/230

 

OHV, Horizontal Shaft Gasoline Engine

VAC, Electric Motor

 

 

 

 

 

 

 

Bore X Stroke

2.90 in. X 2.30 in.

N/A

 

(73 mm x 58 mm)

 

 

 

 

 

 

 

 

Displacement

14.81 cc

N/A

 

 

 

 

 

Max Output

8.0 H.P./3600 R.P.M.

1.5 HP/1725 R.P.M.

Engine/Electric

 

 

 

 

Approx. 1.59 U.S. Gallons

 

Motor

Fuel Tank Capacity

N/A

(6 Liters)

 

 

 

 

 

 

 

 

Fuel

Unleaded Gasoline

N/A

 

 

 

 

 

Lube Oil Capacity

2-1/3 pints

N/A

 

 

 

 

 

Speed Control

Centrifugal Fly-weight Type

N/A

 

Method

 

 

 

 

 

 

 

 

Starting Method

Recoil Start

Electric

 

 

 

 

 

Input Voltage

N/A

115/230 VAC Single Phase

 

 

 

 

Dimension

 

14.0 x 16.9 X 16.1 in.

15.55 x 8.65 X 9.06 in.

(L x W x H)

 

(355 X 430 X 410 mm)

(395 X 220 X 230 mm)

 

 

 

 

Dry Net Weight

 

55.1 lbs (25 Kg.)

Approx. 12 lbs (5.4 kg.)

 

 

 

 

Table 2. MC-94P/S Mixer Specifications

Height

63 in. (1,600 mm)

 

 

Width

51 in. (1,295 mm)

 

 

Length

86 in. (2,185 mm)

 

 

Maximum Drum Capacity

12.35 cu. ft. (350 liters)

 

 

Maximum Mixing Capacity

9.0 cu. ft. (255 liters)

 

 

Bag Capacity

(1 ~ 1.5 bags)

 

 

Weight - Without Engine/ElectricMotor

755 lbs. (342 Kg.)

 

 

PAGE 6 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

MC94P/S CONCRETE MIXER — DIMENSIONS (MIXER)

See Table 2 for mixer dimensions

Figure 1. Mixer Dimensions

MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09) — PAGE 7

MC94P/S CONCRETE MIXER — SAFETY MESSAGE ALERT SYMBOLS

FORYOUR SAFETY ANDTHE SAFETY OF OTHERS!

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.

This Owner's Manual has been developed to provide complete instructions for the safe and efficient operation of the Multiquip Model

MC94P (Plastic) and MC94S (Steel) Concrete Mixers.

Before using these mixers, ensure that the operating individual has read and understands all instructions in this manual.

SAFETY MESSAGE ALERT SYMBOLS

The three (3) 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 three words: DANGER,

WARNING, or CAUTION.

HAZARD SYMBOLS

Rotating Parts

NEVER operate equipment with covers, or guards removed. Keep fingers, hands, hair and clothing away from all moving parts to prevent injury.

Accidental Starting

ALWAYS place the circuit breaker or power ON/OFF switch in the OFF position when the pump is not in use.

Sight and Hearing hazard

ALWAYS wear approved eye and hearing protection.

DANGER: You WILL be KILLED or

 

Respiratory Hazard

SERIOUSLY injured if you do not follow directions.

WARNING: You CAN be KILLED or

ALWAYS wear approved respiratory

protection.

SERIOUSLY injured if you do not follow

 

directions.

 

 

Equipment Damage Messages

 

 

CAUTION: You CAN be injured if you do not follow directions.

Potential hazards associated with the Multiquip MC94P/S concrete mixers operation will be referenced with Hazard Symbols which appear throughout this manual, and will be referenced in conjunction with Safety Message Alert Symbols.

Other important messages are provided throughout this manual to help prevent damage to your mixer, other property, or the surrounding environment.

This mixer, other property, or the surrounding environment could be damaged if you do not follow instructions.

PAGE 8 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

MC94P/S CONCRETE MIXER — RULES FOR SAFE OPERATION

DANGER:

Failure to follow instructions in this manual may lead to serious injury or even death! This equipment is to be operated by trained and qualified personnel only!This equipment is for industrial use only.

The following safety guidelines should always be used when operating the Multiquip MC94P/S Concrete Mixers:

GENERAL SAFETY

DO NOT operate or service this equipment before readingthisentiremanual.

This equipment should not be operated by persons under 18 years of age.

NEVER operate this equipment without proper protective clothing, shatterproof glasses, steeltoed boots and other protective devices required by the job.

NEVER operate this equipment when not feeling well due to fatigue, illness or taking medicine.

NEVER operate this equipment under the influence or drugs or alcohol.

Whenever necessary, replace nameplate, operation and safety decals when they become difficult read.

ALWAYS check the machine for loosened threads or bolts before starting.

ALWAYS wear proper respiratory (mask) hearing and eye protection equipment when operating the mixer.

NEVER! place hands inside the drum while the drum is rotating.

NEVERtouchthehotexhaustmanifold, muffler or cylinder.Allowthese parts to cool before servicing engine or mixer.

HighTemperatures – Allow the engine to cool before adding fuel or performing service and maintenance functions. Contact with hot components can cause serious burns.

The engine of this mixer requires an adequate free flow of cooling air. NEVER! operate the mixer in any enclosed or narrow area where free flow of the air is restricted. If the air

flow is restricted it will cause serious damage to the mixer or engine and may cause injury to people and property. Rememberthe mixer's engine (gasoline models only) gives off DEADLY gases.

ALWAYS refuel in a well-ventilated area, away from sparks and open flames.

ALWAYS use extreme caution when working with flammable liquids. When refueling, stop the engine and allow it to cool. DO NOT smoke around or near the machine. Fire or explosion could result from fuel vapors, or if fuel is spilled on a hot engine.

NEVER operate the mixer in an explosive atmosphere or near combustible materials. An explosion or fire could result causing severe bodily harm or even death.

Topping-off to filler port is dangerous, as it tends to spill fuel.

Refer to the Engine Owner's Manual for engine technical questions or information.

NEVER use accessories or attachments, which are not recommended by Multiquip for this equipment. Damage to the equipment and/or injury to user may result.

Manufacturer does not assume responsibility for any accident due to equipment modifications.

MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09) — PAGE 9

MC94P/S CONCRETE MIXER — RULES FOR SAFE OPERATION

NEVER run engine without air cleaner.Severe engine damage may occur.

ALWAYS read, understand, and follow procedures in Operator’s Manual before attempting to operate equipment.

ALWAYS be sure the operator is familiar with proper safety precautions and operations techniques before using roller.

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.

NEVER leave the mixer unattended, turn off engine or electric motor when unattended.

CAUTION must always be observed while servicing this mixer. Rotating parts can cause injury if contacted.

Unauthorized equipment modifications will void all warranties.

Ensure that any extension cable is protected against damage and not liable to be tripped over or trapped underneath the mixer.

DO NOT allow extension cord to come into contact with water or fluids.

DO NOT spray water onto electric motor.

This mixer is intended for the production of concrete. Mixer must be used only for its intended purpose.

This mixer is not suitable for the mixing of flammable or explosive substances.

NEVER operate the mixer in an explosive atmosphere.

Before starting the mixer, check that all guards are in position and correctly fitted.

Keep area around the mixer clear of obstructions which could cause persons to fall onto moving parts.

ALWAYS ensure mixer is on level ground before mixing.

Become familiar with the controls of the mixer before operating.

ALWAYS replace any worn or damaged warning decals.

Ensure the drum is rotating while filling and emptying the drum.

ALWAYS disconnect AC power plug from power source before moving mixer (electric model only).

High Temperatures – Always stop engine and allow the engine to cool before adding fuel, oil or performing service and maintenance functions. Contact with hot components can cause serious burns.

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.

If mixer is equipped with an electric motor, operate electric motor only at the specified voltage indicated on the nameplate.

Make sure the OFF/ON power switch on the electric motor is always in the OFF position before inserting the mixer's power plug into an AC receptacle (electric model only).

Maintenance Safety

NEVER lubricate components or attempt service on a running machine.

ALWAYS allow the machine a proper amount of time to cool before servicing.

Keep the machinery in proper running condition.

Fix damage to the machine immediately and always replace broken parts, or missing decals.

Dispose of hazardous waste properly.Examples of potentially hazardous waste are used motor oil, fuel and fuel filters.

DO NOT use food or plastic containers to dispose of hazardous waste.

DO NOT pour waste, oil or fuel directly onto the ground, down a drain or into any water source.

Emergencies

ALWAYS know the location of the nearest fire extinguisher and first aid kit.

In emergencies 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.

PAGE 10 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

Multiquip MC94S, MC94P User Manual

MC94P/S CONCRETE MIXER — OPERATION AND SAFETY DECALS

Machine Safety Decals

The Multiquip MC94P/S mixers are equipped with a number of safety decals (Figure 1A).These decals are provided for operator safety and maintenance information. The illustration below and on the next page shows these decals as they appear on the machine.Should any of these decals become unreadable, replacements can be obtained from your dealer.

Figure 1A. MC94P/S Mixer Decals

MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09) — PAGE 11

MC94P/S CONCRETE MIXER — GENERAL INFORMATION

Application

This mixer is only intended for the production of concrete.

The mixer must be used for its intended purpose and is not suitable for the mixing of flammable or explosive substances. The mixer must not be used in an explosive atmosphere. Use Table 4 (Mixing Hints) as a guide when mixing concrete for various applications.

Power Plants

The Multiquip MC94P and MC94S mixers can be powered by either a 8.0 HP, air-cooled, 4-stroke gasoline engine or an 1.5 HP electric motor. Refer to Table 2 to for specific engine or electric motor data information.

Electrical

If mixer is equipped with an electric motor, make sure that the power being supplied to the motor corresponds to the voltage rating label on the motor.Supplying the wrong voltage to the electric motor will cause severe electrical damage to the motor.

Always make sure the OFF/ON switch on the electric motor is in the OFF position before applying power.

It is strongly recommended when inserting the mixer's power cord into a receptacle, that a G.F.C.I. (Ground Fault Current Interrupter) receptacle be used (115 VAC applications).

Extension Cables

The extension cable should be a 3-wire configuration that includes a ground wire that conforms to UL code. The wire cross section must be a minimum of 2.5 mm2 . Choose an extension cord of adequate current carrying capacity as referenced in Table 5. Remember cable distance affects the current-voltage capacity of the extension cable.

Ensure that the extension cable is carefully laid out avoiding wet areas, sharp edges and locations where vehicles might run over it. Avoid allowing the extension cable to be trapped underneath the mixer.

Unroll the extension cable fully or it will overheat and could catch fire. Make sure that all extension cable connections are dry and safe. Replace any defective or badly worn extension cable immediately.

Hardware

Check all hardware on the mixer before starting. Periodically inspect all hardware. Loose hardware can contribute to early component failure and poor performance. UseTable 3 as general guideline when the torqueing of mixer hardware is required. Remember to keep all mixer hardware components tight.

Table 3. Hardware Torque

Recommendations

Hardware

Torque (ft-lbs)

Diameter

 

 

 

5/16-inch x 18

14

 

 

3/8-inch x 16

24

 

 

3/8-inch x 24

37

 

 

1/2-inch x 13

39

 

 

1/2-inch x 13

90

(Grade 8)

 

 

 

Engine Maintenance

For basic engine maintenance, refer to the engine maintenance section in this manual. For a more detailed engine maintenance, refer to the Honda or Robin Engine Owner's manual furnished with the engine.

Table 4. MIXING HINTS

 

 

BATCH QUANTITIES

 

 

APPROX. BATCH

 

MIX

 

 

 

 

 

 

APPLICATIONS

CEMENT 112 lbs.

SAND

 

STONE

 

OUTPUT

RATIOS

 

 

(50 Kgs.)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bag

CU. FT.

 

LTR

CU. FT.

LTR

CU. FT.

LTR

 

 

 

 

 

 

 

 

 

 

Most Ordinary

1:2:4

1/2 BAG

1-1/4

 

35

2-1/2

71

3

85

 

 

 

 

 

 

 

 

 

 

Foundations

1:3:6

1/3 BAG

1-1/4

 

35

2-1/2

71

2-3/4

78

 

 

 

 

 

 

 

 

 

 

Rough Mass

1:4:8

1/4 BAG

1-1/4

 

35

2-1/2

71

2-3/4

78

Concrete

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Watertight Floors,

1:1-1/2:3

2/3 BAG

1-1/4

 

35

3

71

3

85

Tanks, Pits, Etc.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PAGE 12 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

MC94P/S CONCRETE MIXER — MIXER BASIC COMPONENTS

Figure 2. Mixer Major Components

1.Steel Mixing Drum — The Multiquip MC94S uses a 6 cu. ft steel mixing drum.This drum is to be used for mixing of concrete. Always clean the drum after each use. DO NOT use this mixing drum for the mixing of volatile liquids.

9.Tow Bar — This mixer uses various towing bars, please reference the frame assembly drawing and parts list in this manual to determine which tow bar meets your requirements.

2.Plastic Mixing Drum — The Multiquip MC94P uses a 6 10. Leaf Suspension — This mixer uses a leaf type

cu.ft plastic mixing drum.This drum is to be used for mixing of concrete. Always clean the drum after each use. DO NOT use this mixing drum for the mixing of volatile liquids.

3.Mixing Blades (Plastic) — Used for the mixing of concrete. Replace blades when they show signs of wear.Reference plastic mixing drum in the parts section of this manual.

4.Dump Latch —To rotate the mixing drum, this latch must be in the up position.To lock the drum, place the latch in the down position.

5.Dump Gear Guard NEVER operate the mixer with this guard removed. Its purpose is to prevent dirt and debris from entering the dump gear.In addition operator clothing could become entangled in the dump gear, causing severe injury and bodily harm.

suspension. Check the mounting hardware for bolt hole elongation and tightness. See maintenance section of this manual for recommended maintenance.

11.Chock Blocks — Place these blocks (not included as part of the mixer package) under each mixer wheel to prevent rolling, when mixer is not connect to the towing vehicle.

12.Tires Ply — The tire ply (layers) number is rated in letters; This mixer uses 13-inch 2-ply tires. Replace with only recommended type tires.

13.ON/OFF Switch (gasoline only) —This switch is provided on mixers with gasoline engines only and is located on the side of the mixer frame. When activated it will shut down the engine. Pull out when starting the engine.

6.Handwheel — Turn this wheel clockwise or counter14. Cabinet/Latch — Encloses engine and electric motor.

clockwise to rotate the mixing drum. Remember the dump latch must be in the up position in order for the mixing drum to be rotated.

7.Zerk Fittings — There is, at the bottom and engine side of the yoke, and center of the handwheel grease zerk fittings. Lubricate these fittings as referenced in the maintenance section of this manual.

8.Safety Chain — This mixer uses a 3/16-inch thick, 72inches long zinc-plated saftey chain.ALWAYS connect the safety chain when towing.

NEVER run mixer with cabinet removed. Use latches to secure engine compartment cabinet.

15.Mixing Blades (Steel) — Used for the mixing of concrete. When blades show signs of wear, entire steel mixing drum assembly must be replaced. See steel mixing drum assembly in the parts section of this manual.

16.Forklift Pockets When lifting of the mixer is required, use these fork lift pockets to lift the mixer. Remember to insert the forks of the forklift a minimum of 24 inches into the lift pockets.

MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09) — PAGE 13

INITIAL SERVICING
The engine (Figure 3) must be checked for proper lubrication and filledwith fuel priortooperation. Refer tothe manufacturers Engine manual for instructions & details of operation and servicing.
Honda GX Series Engine Shown

MC94P/S CONCRETE MIXER — BASIC ENGINE COMPONENTS

Figure 3. Engine Controls and Components

5. FuelValve Lever – OPEN to let fuel flow, CLOSE to stop the flow of fuel.

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.

WARNING

Addingfueltothetankshouldbeaccomplishedonly 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.

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.

 

 

 

 

 

 

NOTE

 

 

 

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.

 

 

 

 

 

 

 

 

 

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.

WARNING

Enginecomponentscangenerateextremeheat. 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.

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

PAGE 14 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

MC94P/S CONCRETE MIXER — HANDWHEEL ASSEMBLY

Assembly

The MC94P/S concrete mixers are shipped with the handwheel detached. Attach the handwheel to the mixer as shown in Figure 4.

Figure 4. Handwheel Assembly

MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09) — PAGE 15

MC94P/S CONCRETE MIXER —TOWING GUIDELINES

Towing Safety Precautions

CAUTION:

Check with your county or state safety towing regulations department before towing your mixer.

To reduce the possibility of an accident while transporting the mixer on public roads, always make sure that the mixer towing components and the towing vehicle are in good operating condition and both units are mechanically sound.

The following list of suggestions should be used when towing the mixer:

Make sure that the hitch and coupling of the towing vehicle are rated equal to, or greater than the trailer "gross vehicle weight rating" (GVWR).

ALWAYS inspect the hitch and coupling for wear. NEVER tow the mixer with defective hitches, couplings, chains etc.

CHECK the tire air pressure on both the towing vehicle and the trailer.Also check the tire tread wear on both vehicles.

ALWAYS make sure the mixer is equipped with a "Safety Chain".

ALWAYS attach trailer's safety chain to the frame of towing vehicle.

ALWAYS make sure that the towing vehicle's directional, backup, and brake lights are working properly.

Remember in most cases the maximum speed unless otherwise posted for highway towing is 45 MPH, however before towing your mixer, check your local state, and county vehicle towing requirements. Recommended off-road towing is not to exceed 10 MPH or less depending on type of terrain.

Place chocked blocks underneath wheels to prevent rolling, while parked, if disconnected from towing vehicle.

Inflate tires to correct pressure, inspect tires for cuts, and excessive wear. See Table 16 (Tire Wear Troubleshooting).

When towing of the mixer is required, place the drum in the up position (mouth facing upwards).

ALWAYS make sure that the fuel valve lever is in the OFF position (gasoline models only).

Check wheel mounting lug nuts with a torque wrench. Torque wheel lug nuts as described in the maintenance section of this manual.

Check tightness of U-clamp nuts, torque suspension hardware as referenced in the maintenance section of this manual.

Avoid sudden stops and starts.This can cause skidding, or jackknifing. Smooth, gradual starts and stops will improve gas milage.

Avoid sharp turns to prevent rolling.

CAUTION:

If the mixer tow bar is deformed or damaged replace entire tow bar.NEVER tow the mixer with a defective tow bar. There exist the possibility of the trailer separating from the towing vehicle.

Tow Bar to Vehicle Connection (Coupler Only)

1.Check the vehicle hitch ball, and mixer's coupler for signs of wear or damage. Replace any parts that are worn or damaged before towing.

2.Use only a 2-inch ball diameter (towing vehicle), this will match the mixer's 2-inch coupler. Use of any other ball diameter will create an extremely dangerous condition which can result in separation of the coupler and ball or ball failure.

3.After tow bar has been connected to mixer (see next page), attach mixer's coupler to the hitch ball on the towing vehicle securely and make sure the lock lever is in the down position (locked).

Mixer Tow Bar Vehicle Connection (Pintle and Loop)

1.Make sure the bumper on the towing vehicle is equipped to handle either a pintle or loop type tow bar configuration.

2.After tow bar has been connected to mixer (see next page), secure either type of tow bar to the towing vehicle, following state and county towing regulations.

3.As a minimum, use a 1/2-inch bolt and nylock nut grade 5 when securing either tow bar to the towing vehicle,

PAGE 16 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

MC94P/S CONCRETE MIXER — SAFETY CHAIN CONNECTION

CAUTION:

NEVER ! tow the mixer with the safety chain removed. The safety chain is intended to prevent complete separation of the mixer from the towing vehicle in the event of a tow bar failure.

Reference Figure 5 for the installation of the Safety Chain.

Tow Bar to Mixer Connection

1.Insert the tow bar through the round opening at the bottom of the mixer stand.

Align the hole on the tow bar with the hole on the mixer frame, and insert 1/2-inch bolt through tow bar and frame.

Secure tow bar to frame with 1/2-inch nylock nut.Tighten to 40 ft.-lbs.

2.Route the safety chain through the holes just above the tow bar, located on each side of the mixer stand.

Loop the chain together and place under the tow bar. Secure the loop with the connector link.

3.Extend the safety chain along the length of the tow bar, looping it through the tow bar's connector link. Remove any excess chain slack.

4.Connect the free end of (clevis safety hook) the safety chain to the towing vehicle. Remember it is critical that the length of the chain be properly adjusted, to prevent the draw bar and the front of the mixer stand from dropping to the the ground (contact) in the event the draw bar becomes disconnected from the towing vehicle.

Figure 5. Tow Bar and Safety Chain Installation

MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09) — PAGE 17

MC94P/S CONCRETE MIXER — ELECTRIC MOTOR

Electric Motor

For maintenance care and operation of the electric motor, refer to your electric motor instruction booklet furnished with the electric motor.

Protect the electric motor from dust as much as possible and keep ventilating openings clean.

CAUTION:

DO NOT spray water at any time on the electric motor.

DO NOT operate electric motor in a explosive environment.

The electric motor used in this mixer is a single-phase 1.5 HP motor. The input voltage requirement for this motor is either 115 or 230 VAC only.

Electric Motor Connection

A 12 inch electrical cable (Figure 2) with a pigtail at one end is provided with the electrical motor for hookup to a power source. Table 1. shows the required NEMA connector for the desired motor horsepower rating. In addition, Table 2 also shows the matching NEMA approved connector for the required extension cord.

ALWAYS, make certain that the power source required for the electric motor is correct and always use the correct NEMA configuration plug. Failure to supply the correct voltage to the motor can severely damage the motor.

The electric motor supplied with the mixer is configured from the factoryfor115VACgroundedoperation.Makecertainthatthecorrect size grounded (3-wires) extension cord is used.SeeTable 5.

Motors can burn out when the line voltage falls 10% below the voltage rating of the motor. Failure to use proper voltage will cause the motor to overheat and actuate the overload switch.

If overload protection should actuate because of improper voltage or any other malfunction, turn the main switch on the motor to the "OFF" position and correct the problem, press the reset switch button, and turn the main switch to the "ON" position.

Table 5. Recommended Extension Cord Sizes

Electric

Input

50 ft.

75 ft.

100 ft.

200 ft.

Motor

Voltage

(15.24 m)

(22.86 m)

(30.48 m)

(60.96 m)

 

 

 

 

 

 

 

115 VAC

No. 12

No. 10

No. 8

No. 6

1.5 HP

 

 

 

 

 

230 VAC

No. 14

No. 12

No. 12

No. 8

 

 

 

 

 

 

 

Electric MotorVoltage Change Switch

1.ALWAYS make certain the electric motor's ON/OFF switch is in the "OFF" position and the power cord has been disconnected from the power source.

2.Remove the voltage change lock-out bolt and nut (Figure 6). Change the position of the voltage change toggle switch from 115VAC to 230VAC.The mixer is factory wired for 115 VAC operation.

3.Re-install the voltage change lock-out bolt and nut.

Figure 6. Voltage Change Switch

4.Important!, when changing the input voltage to the electric motor from 115 to 230VAC, the plug on the electric motor power cord must also be changed. SeeTable 6 and Figure 7.

Table 6. Electric Motor Wiring Information

Motor

115-230 VAC - Single Phase

Horsepower

 

 

NEMA Plug Connector

Mating NEMA

Rating

 

Receptacle Connector

 

 

 

 

 

1.5 HP

L5-20P P/N EM940537

L5-20R P/N EM940538

(115 VAC)

 

 

 

 

 

1.5 HP

L6-20P P/N 940539

L6-20R P/N 940540

(230 VAC)

 

 

 

 

 

NEVER! disable or disconnect the ON/OFF switch on the electric motor. It is provided for operator safety.Injury may result if it is disable, disconnected or improperly maintained.

PAGE 18 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

MC94P/S CONCRETE MIXER — ELECTRIC MOTOR

Figure 7. Single Phase Electric Motor

MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09) — PAGE 19

MC94P/S CONCRETE MIXER — PRE-INSPECTION (GAS ENGINE)

Before Starting

1.Read safety instructions at the beginning of manual.

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

3.Check theairfilterfor dirtanddust. Ifairfilterisdirty,replace air filter with a new one as required.

Table 7. 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

 

 

 

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

5.Check fastening nuts and bolts for tightness.

Engine Oil Check

1.To check the engine oil level, place the mixer on secure level ground with the engine stopped.

2.Remove the filler dipstick from the engine oil filler hole (Figure 8) and wipe it clean.

Figure 8. 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 engine oil level is low (Figure 9), fill to the edge of the oil filler hole with the recommended oil type (Table 7). See Table 2 for the oil capacity of your type engine.

Figure 9. Engine Oil Dipstick (Oil Level)

Explosive Fuel

Fuel Check

If your mixer has a gasoline engine, determine if the engine fuel is low. If fuel is low, remove the fuel filler cap and fill with unleaded gasoline. Motor fuels are highly flammable and can be dangerous if mishandled. DO NOT smoke while refueling. DO NOT attempt to refuel the trowel if the engine is hot! or running.

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

2.Visuallyinspecttoseeiffuellevelislow. Iffuelislow,replenish with unleaded fuel.

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

V-belt Check

A worn or damagedV-belt can adversely affect the performance of the mixer.If a V-belt is defective or worn simply replace theVbelt as outlined in the maintenance section of this manual.

Blade Check

Check for worn blades. If using a steel tub and the blades are worn, replace the entire tub assembly. Remember the blades are welded to tub.

If using a plastic tub, replace the blades using the part numbers referenced in the parts section of this manual.

Start/Stop Switches

This mixer has been equipped with a start/stop switches for both the gasoline and electric motor mixers.These switches should be tested every time the engine or motor is started.

Grease Fittings (Zerk)

Check the zerk grease fittings (Figure 27) as shown in the maintenancesectionofthismanual.Thesegreasefittingslubricate the handwheel and the yoke mechanism.

PAGE 20 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

MC94P/S CONCRETE MIXER — INITIAL START-UP (GAS ENGINE)

Starting the Engine (Gasoline Only)

The following steps outline the procedure for starting the engine. Depending on the type of engine employed in the mixer the steps may vary slightly. If your mixer has an electric motor disregard this section.

1.Move the fuel shut-off lever (Figure 10) to the ON position.

Figure 10. Fuel Shut-OFF Lever

4.Turn the engine switch (Figure 13) to the ON position.

Figure 13. Engine ON/OFF Switch

5.Located at the rear of the mixer frame is the main start/ stop button (Figure 14). Pull this button outward to start the engine.

2.To start a cold engine, move the choke lever (Figure 11) to the CLOSED position.

Figure 11. Choke Lever

3.Move the throttle lever (Figure 12) away from the slow position, about 1/3 of the way toward the fast position.

Figure 14. Engine Start/Stop Button

6.Pull the starter grip (Figure 15) lightly until you feel resistance, then pull briskly.The drum should be rotating at this time.

Figure 15. Starter Grip

Figure 12.Throttle Lever

MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09) — PAGE 21

MC94P/S CONCRETE MIXER — INITIAL START-UP (ELECTRIC MOTOR)

Initial Start-up Instructions (Electric Motor)

Starting

CAUTION:

DO NOT attempt to operate the mixer until the Safety, General Information and Inspection sections have been read and understood.

1.Before starting, make sure mixer is positioned on a secure flat surface to prevent rolling.

2.Use an extension cord (see Table 5) of adequate current carryingcapacity,insert theelectricmotor'spowerplug into one end of the extension cord.

3.NEVER! use a worn or frayed extension cord.

4.NEVER! operate mixer withV-belt cover removed.

DANGER

NEVER! touch the power cord (Figure 16) with wet hands or while standing in water when it is connected to a power source.The possibly exists of electrical shock (electrocution) even death. NEVER! spray water directly on the electric motor.

Figure 16. Extension Cord (Wet Hands)

To prevent personnel from tripping over the extension cord, position the NOTE extension cord so that it lays flat and is

not curled underneath the mixer.

5.Place the voltage selector switch (Figure 17) in the position thatisinaccordancewithvoltagelistedontheelectricmotor's nameplate.Theelectricmotor'sareshippedfromthefactory withthewiththevoltageselectorswitchplacedinthe115VAC position.

If 230VAC is required, remove the locking bolt and nut and flip the voltage selector toggle switch to the 230 VAC position. Reinstall the locking bolt and nut to prevent the toggle switch from being accidently tripped.

Figure 17. Voltage Change Switch

(115 VAC Position)

6.Plug the other end of the extension cord into either a 115 or 230VAC power source (look at position of voltage selector switch). Remembertoreadthenameplatetodeterminethe motor'sinputvoltagerequirement.

WARNING:

ALWAYS read the label on the electric motor before applying power.The label will indicate the correct power requirements for the motor. Remember the use of an incorrect input voltage will severely damage the electric motor.

Starting the Electric Motor

1.Set the electric motor's ON/OFF switch (Figure 18) to the ON position.

Figure 18. Electric Motor ON/OFF Switch

(ON Position)

PAGE 22 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

MC94P/S CONCRETE MIXER — OPERATION

Operation

1.Topositionthetub,makesurethemixerisplacedonfirmlevel ground,thenpulluponthedumplatch(Figure19)andturn thehandwheeluntilthetubisatthedesiredposition.Once thetubisatthedesiredposition,pulldownonthedumplatch to lock the tub in position.

Figure 19. Mixing Drum Positioning

CAUTION:

NEVER stand in front or behind the mixing drum while it is being placed in the dump position. Stay clear of the mixing drum while it is being positioned.

2.As the drum rotates, use a shovel (Figure 20) to place the cementmixinsidethedrum,addwaterasrequired.Becareful to only place the tip of the shovel inside the drum.

Figure 20. Filling Mixing Drum

3.Placingtheshovelallthewayinsidethedrum(Figure21)will causetheshoveltostriketheblades.Thisconditionwillmake

the shovel rotate, and could cause injury to personnel. NEVER place hands inside the mixing drum while it is rotating.

Figure 21. Filling Mixing Drum

Stopping the Mixer (Gasoline)

1.Push the main start/stop switch (Figure 22) inward to stop the engine.

Figure 22. Start/Stop Button (Stop Position)

2.Place fuel shut-off lever in the OFF position.

3.Clean drum of all debris and foreign matter.

Stopping the Mixer (Electric)

1.Place the electric motor's ON/OFF switch (Figure 23) in the OFF position.

Figure 23. Electric Motor ON/OFF Switch

(OFF Position)

2.Disconnect the electric motor's extension cord from its power source.

3.Clean drum of all debris and foreign matter.

MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09) — PAGE 23

MC94P/S CONCRETE MIXER — MAINTENANCE (ENGINE)

UseTable 8 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 8. Engine Maintenance Schedule

 

 

 

FIRST

 

EVERY

EVERY

EVERY

EVERY

DESCRIPTION (3)

OPERATION

BEFORE

MONTH

 

3 MONTHS

6 MONTHS

YEAR

2 YEARS

OR

 

OR

OR

OR

OR

 

 

 

 

 

 

 

10 HRS.

 

25 HRS.

50 HRS.

100 HRS.

200 HRS.

 

 

 

 

 

 

 

 

 

Engine Oil

CHECK

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHANGE

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Air Cleaner

CHECK

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CHANGE

 

 

 

X (1)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

All Nuts & Bolts

Re-tighten If

X

 

 

 

 

 

 

Necessary

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Spark Plug

CHECK-CLEAN

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

REPLACE

 

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Cooling Fins

CHECK

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

 

Spark Arrester

CLEAN

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

Fuel Tank

CLEAN

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

Fuel Filter

CHECK

 

 

 

 

 

X

 

 

 

 

 

 

 

 

 

 

Idle Speed

CHECK-ADJUST

 

 

 

 

 

X (2)

 

 

 

 

 

 

 

 

 

 

Valve Clearance

CHECK-ADJUST

 

 

 

 

 

 

X (2)

 

 

 

 

 

 

 

 

 

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 or ROBIN Shop Manual for service procedures.

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

PAGE 24 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

MC94P/S CONCRETE MIXER — MAINTENANCE (ENGINE)

Maintenance

Perform the scheduled maintenance procedures as defined by Table 6 and 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

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

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

Remove and clean the spark plug (Figure 24), 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.

DANGER :

DO NOT use gasoline as a cleaning solvent, because that would create a risk of fire or explosion.

ENGINEAIRCLEANER

1.Remove the air cleaner cover and foam filter element as shown in Figure 26.

2.Tap the paper filter element (Figure 34) 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 elementfromtheaircleanercaseside.NEVER brushoffdirt. Brushingwillforcedirtintothefibers.Replacethepaperfilter element if it is excessively dirty.

3.Cleanfoamelementinwarm,soapywaterornonflammable solvent. Rinse and dry thoroughly. Dip the element in clean engineoilandcompletelysqueezeouttheexcessoilfromthe element before installing.

Figure 24. Spark Plug Gap

ENGINEOIL

1.Drain the engine oil when the oil is warm as shown in Figure 25.

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

3.Replace engine oil with recommended type oil as listed in Table 7. For engine oil capacity, see Table 2 (engine specifications). DO NOT overfill.

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

Figure 26. Engine Air Cleaner

Figure 25. Engine Oil (Draining)

MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09) — PAGE 25

MC94P/S CONCRETE MIXER — MAINTENANCE (MIXER)

Ball Socket and Clamp Face Maintenance

1.If the towing vechicle is equipped with a ball socket, smear socket periodically with multi-purpose grease. This will keep the ball socket well lubricated.

2.Periodically oil pivot points and clamp face surfaces of coupler with SAE 30 WT. motor oil.

3.When parking or storing your mixer. Keep the coupler off the ground so dirt will not build up in the ball socket.

Grease Fittings (Zerk) Maintenance (Mixer)

There are 3 grease (Figure 27) fittings that will require lubrication. Lubricate these fittings once a week. Use lithium base grease, grade N0.1.

Figure 27. Grease Fittings Mixer

Grease Fittings (Zerk) Maintenance (Electric Motor)

1.There are two grease (Figure 28) fittings at each end of the electric motor that will require lubrication. Lubricate these fittings about every 16 months.

Figure 28. Grease Fittings Electric Motor

2.Use Poleyrex EM (Exxon Mobil) or equalivant lubricant. Clean grease fitting, apply grease gun to fitting (1/2 shot). Remember too much grease or injecting grease too quickly can cause premature bearing failure. Slowly apply the recommended amount of grease, taking a miniute or so to apply.

Wheel Bearings

1.After every 3 months of operation, remove the hub dust cap and inspect the wheel bearings (Figure 29). Once a year, or when required, disassemble the wheel hubs remove the old grease and repack the bearings forcing grease between rollers, cone and cage with a good grade of high speed wheel bearing grease (never use grease heavier than 265 A.S.T.M.penetration (“No.2.”)

Figure 29. Wheel Hub and Bearings

2.Fill the wheel hub (Figure 29) with grease to the inside diameter of the outer races and also fill the hub grease cap. Reassemble the hub and mount the wheel.Then tighten the adjusting nut, at the same time turn the wheel in both directions, until there is a slight bind to be sure all the bearing surfaces are in contact.

Then back-off the adjusting nut 1/6 to 1/4 turn or to the nearest locking hole or sufficiently to allow the wheel to rotate freely within limits of .001" to .010" end play.Lock the nut at this position. Install the cotter pin and dust cap, and tighten all hardware.

Mixer Cleaning

1.For thorough mix and longer drum life, always wash drum out after each use.

2.NEVER! pour or spray water over the engine or electric motor.

PAGE 26 —MC94P/S CONCRETE MIXERS — OPERATION AND PARTS MANUAL — REV. #8 (03/06/09)

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