Marshalltown 1220MP User Manual

WS1169 6-2014/Rev.A

MP Series Mortar/Plaster Mixers

Includes the Following Models

800MP, 1200MP, 1220MP, 1620MP

104 S. 8th Ave.

Marshalltown, IA

Phone 800-888-0127 / 641-753-0127

Fax 800-477-6341 / 641-753-6341

www.MARSHALLTOWN.com

INTRODUCTION

Congratulations on your purchase of a MARSHALLTOWN MP Series Mortar/Plaster Mixer. Made in the USA, MARSHALLTOWN mixers are rugged and heavy-duty, ready for years of service. MARSHALLTOWN mixers have several options to suit every contractor’s needs. Among those are:

• 8, 12, and 16 cubic foot drums

• Mechanical or hydraulic drive

• Manual or hydraulic dump

• 2” ball or pintle hitch

• Honda® gasoline engines, or multiple electric motor options

The paddle design of your MARSHALLTOWN mixer has several advantages. Our paddles are bolted into place, allowing for easy replacement. They also have separate drum scrapers which continually clean the side of the drum and help move material to the middle of the drum. Our 4/2, 2/2, and 6/2 paddle design ensure “Batch a Minute” results.

Other features of your MARSHALLTOWN mixer include:

• Heavy gauge steel on the entire unit

• Rubber torsion axles on all mixers

• Double belt drive on mechanical mixers

• Square paddle shaft for reduced slippage and better efﬁciency

• Structural steel frame

• High-speed tow kit with 25" tires

This owner’s manual provides the information needed to operate and maintain this MARSHALLTOWN Mixer. Carefully read and follow all safety and operating instructions in this manual. Ensure every operator of this mixer reads this manual before operating the mixer. The replacement of any part on this mixer by other than the manufacturer’s authorized replacement part may adversely affect the performance, durability or safety of the product.

Be sure safety precautions are observed. Read and follow all safety and operating instructions in this operator’s manual. The manufacturer reserves the right to make changes on or add improvements to its product at any time without

prior notice or obligation. The manufacturer reserves the right to decide, upon its sole discretion and at any time, to discontinue a product.

Information regarding operation and maintenance of the engine can be found in a separate engine manual supplied with this mixer, if the mixer is supplied with an engine. The engine manual provides all the information required regarding engine adjustments, operation and maintenance. Should any questions arise concerning engine operation or service, contact the nearest engine repair facility or the engine manufacturer.

This manual covers all MARSHALLTOWN MP Series Motor/Plaster mixer models and options. For technical questions or repair parts, please call MARSHALLTOWN customer service at 800-888-0127, 641-753-6341 or visit www.MARSHALLTOWN.com

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TABLE OF CONTENTS

DANGER!

WARNING!

Safety Precautions ................................................................................................………………………………….3-4

Safety Decals ............................................................................................................................................................5

Warranty ...............................................................................................................……………………………………. 6

Speciﬁcations ....................................................................................................................... ………………………7-9

Assembly ................................................................................................................................................................... 9

Product Operation ............................................................................................................ ………………………10-13

Parts Breakdown ..............................................................................................................................................14-40

Maintenance ............................................................................................................................................................ 41

Troubleshooting .......................................................................................................................................................42

SAFETY PRECAUTIONS

UNDERSTAND SIGNAL WORDS

• A signal word - DANGER, WARNING, or CAUTION is used with the safety-alert symbol. DANGER identiﬁes the most serious hazards.

• DANGER or WARNING safety signs are located near speciﬁc hazards.

• General precautions are listed on CAUTION safety signs.

• This notation appears before warnings in the text. It means that the step that follows must be carried out to avoid the possibility of personal injury or death. These warnings are intended to help the technician avoid any potential hazards encountered in the normal service procedures. We strongly recommend that the reader takes advantage of the information provided to prevent personal injury or injury to others.

THE FOLLOWING PRECAUTIONS ARE SUGGESTED TO HELP PREVENT ACCIDENTS. A CAREFUL OPERATOR IS THE BEST OPERATOR. MOST ACCIDENTS CAN BE AVOIDED BY OBSERVING CERTAIN PRECAUTIONS. READ AND TAKE THE FOLLOWING PRECAUTIONS BEFORE OPERATING THIS EQUIPMENT TO HELP PREVENT ACCIDENTS. EQUIPMENT SHOULD BE OPERATED ONLY BY THOSE WHO ARE RESPONSIBLE AND INSTRUCTED TO DO SO.

CALIFORNIA PROPOSITION 65 WARNING: Operation of this equipment and/or engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.

• Read all operating and maintenance instructions before operating or servicing mixer. Test run empty prior to actual use.

• A mixer is only as safe as its operator. Give complete and undivided attention to the operation of the mixer.

• Know how to stop the mixer and the engine instantly.

• Always have all guards and safety devices attached and in place before operating mixer. Close engine housing during

operation.

• Keep inexperienced and unauthorized people away from the mixer at all times.

• Never leave the mixer unattended while it is running.

• Shut off engine or disconnect the electric motor before making any adjustments or putting hands or tools in the drum.

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SAFETY PRECAUTIONS CONTINUED

DANGER!

Never reach into the drum or place tools into the drum while the mixer is running.

• Do not overﬁll the drum. Do not exceed the mixer’s rated capacity.

• Do not smoke while refueling the engine. Shut off the engine and allow it to cool before refueling. Do not spill fuel.

• Block mixer wheels when mixing.

• Use safety chains while towing mixer.

• Keep the mixer in good operating condition. Loose or damaged parts are dangerous.

• Avoid loose clothing that could get caught in moving parts or on control levers.

Keep hands and feet away from moving parts.

• Do not add material to the drum while stopped. Start the drum before adding material.

• Keep all warning, caution and safety instruction labels in good condition. Replace missing, damaged or illegible labels.

• Clear the work area around the machine to prevent tripping or falling onto the mixer.

• Operate on level ground to prevent the mixer from tipping over.

• DO NOT OPERATE this mixer under the inﬂuence of alcohol or while taking medication that impairs your reactions.

• Do not pull the cord to disconnect it. Keep the cord away from heat, oil, and sharp edges.

• Use factory authorized parts for replacement.

• Wear safety glasses when mixer is in use.

• Never attempt to move the mixer while the motor is on.

• With electric motors, properly grounded electric circuit is required to protect the operator from possible electric shock.

NEVER unplug the motor while standing in or around wet ground.

TOWING & SAFETY CHAINS

For transporting the mixer, slide the tow pole out as far as possible and insert the locking pin. When operating the mixer, slide the tow pole in and lock it in place. Make sure drum is locked in position and engine housing is closed and secured. Cross the safety chains under the tow pole and fasten them to the tow vehicle. (See ﬁgure 1.)

NOTE! Safety chain length may need to be altered for proper connection to tow vehicle. Reposition the hooks, DO NOT cut chain. Allow enough slack to permit proper vehicle turning while keeping chains snug enough to prevent tow pole from contacting the ground in case the hitch uncouples.

Figure 1

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SAFETY DECALS

If your safety and operating decals are damaged, they can be replaced by contacting Customer Service.

WS1065WS1195

CAUTION!

1. Never reach into drum while mixer is running.

2. Stop engine or motor before cleaning or servicing.

3. Keep children and unauthorized people away from machine.

4. Never allow machine to run unattended.

5. Read owner’s manual before operating or servicing this machine.

CLEANING

1. With paddles rotating, add water.

2. Allow paddles to turn for several minutes.

3. Dump water and spray remaining mortar with hose.

4. Stop mixer by switching motor off or stopping engine.

5. Thoroughly clean with water before any remaining mortar hardens.

LUBRICATION & SERVICE

1. Lubricate the following daily prior to use:

· Drive shaft bearings

· Drum shaft bearings and seals

· Chain and sprockets

2. Service engine or motor per manual supplied.

WS1195

WS1198

WS1070

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MIXERS ONE-YEAR WARRANTY

This product is warranted to the original purchaser only, to be free of defects in material and workmanship under normal use, for one year from purchase date. Marshalltown Company shall without charge for parts and labor, repair or replace such parts which are found to be defective. All transportation charges for replacement parts must be borne by the purchaser.

For warranty service, the product must be delivered, with proof of purchase date, to the dealer of original purchase, or any factory authorized service dealer.

If difﬁculty is encountered in having warranty work performed, contact the factory Service Department.

All implied warranties, including those of merchantability and ﬁtness for a particular purpose, are limited to one year from date of purchase by the original retail customer and to the extent permitted by law any and all implied warranties are excluded and disclaimed after the expiration of such period.

Some states do not allow limitations on how long an implied warranty lasts, or the exclusion or limitations of incidental or consequential damages, so the above limitations or exclusions may not apply to you. This warranty gives you speciﬁc legal rights, and you may also have other rights, which vary from state to state.

Exclusion from this warranty:

1. The following items are not covered under the Marshalltown Company one year warranty and are warranted by their respective manufacturer.

a) Engines, including starters, generators, alternators and gear reducers

b) Hydraulic components, including pumps, motors and valves

2. All consequential damages, including pickup and delivery of the unit, communication, mileage charges and/or rental of a replacement unit during repairs are not covered under this warranty, nor are any loss of income and/or other loss resulting from the failure of the product to function due to a warranty defect.

3. This warranty will not apply when the product becomes inoperative due to misuse, normal wear, neglect, improper maintenance, accident or freight damage; has not been operated and maintained in accordance with the instructions furnished in the Operator’s Manual; or has been altered or modiﬁed without approval from the factory Service Department.

4. No parts or products are to be returned to the factory without prior written approval from the factory.

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SPECIFICATIONS

[1105]

[1365]

[1799]

WITHOUT OUTRIGGER

[1844]

[1918]

[1499]

[1105]

[1365]

[1918]

[1499]

[2027]

[1983]

WITHOUT OUTRIGGER

800MP

1200MP

WS1169 6-2014/Rev.A

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SPECIFICATIONS

[1365]

1220MP

[1499]

[1105]

[1365]

WITHOUT OUTRIGGER

[2191]

[2242]

1620MP

[1499]

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[1105]

WITHOUT OUTRIGGER

[2397]

[2442]

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SPECIFICATIONS

Model

800MP 8 9.8 2

1200MP 12 14.1 4

1220MP 12 14.1 4

1620MP 16 17.4 5

Model Tow Pole Wheel & Tire Suspension

800MP 2-7/8" Dia. Telescoping

1200MP 2-7/8" Dia. Telescoping

1220MP 2-7/8" Dia. Telescoping

1620MP 2-7/8" Dia. Telescoping

Batch

Volume

Cu. Ft.

Total Drum

Volume

Cu. Ft.

Batch

Cap. Bags

6.5" X 13" Wheels

25" O.D. Tires

Bearing/Seal

Roller Bearings w/Stacked Seals

Torsion Axle 73" X 54" X 59" 24"

Torsion Axle 80" X 54" X 59" 24”

Torsion Axle 88" X 54" X 59" 24”

Torsion Axle 96" X 54" X 59" 24”

Clutch

Mechanism

Pivoting Engine Mount

Hydraulic Hydraulic

Overall

Dimensions

L X W X H

Discharge

Height

Power Reduction

6:1 Reduction;

Belt to Chain & Sprocket

6:1 Reduction;

Belt to Chain & Sprocket

Power

Options

3HP Electric 8HP Honda

7.5HP Electric 13HP Honda

ASSEMBLY

TOW POLE

The tow pole assembly is located on the front of the mixer and is used for transport only. For transport, pull the tow pole assembly out, line up the holes and insert the L-shaped pin through each hole. While operating the mixer, pull the L-shaped pin out of the hole and push tow pole assembly all the way in. Line up the holes and insert the L-shaped pin through each hole.

ELECTRIC MOTORS

Electric Motors on MP mixers are sold WITHOUT a power cord because of the variety of voltage/plug conﬁgurations available. Most electrical supply stores can provide the correct wiring harness and plug for any application.

HYDRAULIC PUMPS

No hydraulic assembly required. The speed of the mixing shaft can be adjusted using the ﬂow control inside the engine house.

GREASING

All mixers are greased before their factory test, but each unit should be greased prior to its ﬁrst use (see lubrication section on page 12). This will replace any grease that was lost or contaminated during transport.

DRUM WIPER BLADES

The mixing paddles feature adjustable rubber wipers and steel backing plates. Wipers are factory preset to lightly contact the inside of the drum.

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MIXER TRANSPORT

Secure drum by engaging drum lock. Secure all moveable parts, including the rear housing. Secure tow pole coupler to vehicle and attach safety chains and hooks. (See Figure 1, Safety Chains). The included pintle-type couplers require the appropriate tow vehicle coupler retainer.

Figure 1

PRE-OPERATIONAL CHECKS

The following steps should be taken prior to placing the mixer in use:

1. The operator must be familiar with the location and operation of all controls.

2. The unit ships with oil, but check the crankcase oil level on gasoline powered units, and ﬁll the fuel tank before starting.

3. Check for free rotation of the mixer blade shaft by rotating the drum through one complete dump-charge-dump cycle.

Make sure no foreign objects or tools are in drum before starting engine/motor.

4. When turning the unit on for the ﬁrst time, make sure the paddles are turning the right direction. If the paddle direction is

incorrect, consult the motor wiring diagram (can be found inside the wiring enclosure or on the nameplate of the motor) to

reverse the direction.

5. Start engine/motor, slowly engage the drum drive and check for smooth operation of the mixer blade shaft and drive.

6. Verify that all power cords are running in a safe direction and clear of all gears, belts, or other moving parts.

7. Move the clutch lever through several cycles to assure correct clutch operation.

8. Use the dipstick to check the hydraulic ﬂuid level in the reservoir.

9. Make sure the drum latch is disengaged prior to extending the dump cylinder.

CONTROLS AND OPERATIONS

Read through the manual for all operation, adjustment and maintenance instructions. Be sure all engine/motor and drive system operation instructions are followed as outlined.

All nuts and cap screws should be checked and tightened during the ﬁrst two (2) hours of use. Periodic checks should be made thereafter.

WIPER BLADE ADJUSTMENT

Ensure mixer is unplugged (electric) or spark plug removed (gasoline) to prevent accidental starting.

The mixing paddles feature adjustable rubber wipers and steel backing plates. Wipers are factory preset to lightly contact the inside of the drum.

If adjustment is required, proceed as follows:

A. Loosen the wiper attaching hardware and move the wiper outward to maintain contact with the drum but without folding over when in operation.

B. After adjustment, turn the mixer arms one full turn manually to check clearance and eliminate the possibility of wiper back plates contacting the drum.

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CLUTCH CONTROL LEVER

9 C

DANGER!

To avoid personal injury, this control must be disengaged before starting engine/motor or when mixer is not in use.

This control is located in front of the mixing drum on the mixer leg. (See Figure 2.) This control engages and disengages the drive to the mixing blades.

TO ENGAGE: Position lever in line with the mixer frame (12 o’clock position). Lever is held in the engage position by the over-center action of the linkage.

12 o'clock Clutch Engage

TO DISENGAGE: Push lever down (counter-clock-wise) to the 9 o’clock position. Lever is spring

o'clock -

lutch Disengaged

loaded to hold it in the disengaged position.

Figure 2

STARTING THE MIXER

To avoid personal injury, be sure control lever is in the neutral position before starting engine/motor

Start the mixer engine/motor. Refer to the engine/motor manual for proper starting procedures. When the engine/motor is warmed up and is running smoothly, move the control lever to engage the clutch.

Tilt Drum Forward

Tilt Drum Backward

Ram dump mixers have 3 paddle settings: Forward, Neutral, Reverse (See Figure 2.1) Ram dump mixers have 3 drum settings: Tilt Forward, Load/Mix, Tilt Backward (See Figure 2.1)

EXTENSION CORDS FOR ELECTRIC MOTORS

Follow your local or state standards, or the National Electric Code, to determine the correct gauge of wire when using an extension cord with your electric motor.

Paddles Forward

Paddles Reverse

Figure 2.1

LOADING THE MIXER

To avoid personal injury, be sure grill assembly is down and in place when mixer is in operation

To avoid personal injury, be sure drum is locked in the operating position

When the mixing blades are rotating, pour the required amount of water into the drum, then add cement, sand and lime or mortar mix. The desired mixing speed is 33 RPM.

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DISCHARGING THE MIXER

DANGER!

WARNING!

Drum Seal Plate Assemblies

Drum Shaft Bearing Hangers

Wheel Bearings

Drive Shaft Bearings

Keep hands and all foreign objects clear of the moving paddles while discharging the mixer.

MANUAL DUMP

1. Allow the entire mixture to mix for one (1) full minute.

2. DO NOT STOP MIXER FROM ROTATING.

3. Hold the tilt handle and disengage the drum lock.

4. Dump motor to the side by pulling the tilt lever downward.

5. After the mixture is dumped, return the drum to the operating position and engage drum lock.

RAM DUMP

1. Slowly push forward on the left-hand control lever on the control valve. The farther the valve is pushed, the faster the drum will tilt.

2. With the drum in the discharge position, use the right-hand control lever to engage the paddles and discharge the mix.

3. Pull the left-hand control lever toward you to return the drum to the load/mix position.

LUBRICATION

To avoid personal injury, always turn off engine/motor and wait for all motion to stop before making adjustments or repairs.

DRUM SEAL PLATE ASSEMBLIES

Drum seals are provided on each end of the drum where the mixing shaft passes through to the bearings. It is important to pump grease into the assemblies to retain seal efﬁciency. Use enough grease to ﬂush out old grease and carry away any grit. Use lithium based grade 2 multi-purpose grease. See Figure 3.1

MIXING SHAFT BEARINGS

The mixing shaft bearings are permanently factory sealed and lubricated, and should not require further service.

Figure 3.1

WHEEL BEARINGS

Wheel bearings should be packed once a year. Thoroughly clean old lubricant from the bearings, hub and spindles before repacking. Pack bearings only one-half to two-thirds full with grease to prevent overheating. Use no. 2 wheel bearing grease.

DRUM SHAFT BEARING HANGERS

Drum yoke bearing hangers are located on each side of the drum, and are equipped with grease ﬁttings. These bearings should be lubricated once each week with lithium based grade 2 multi-purpose grease. See Figure 3.1

ENGINE/MOTOR

Refer to the engine/motor operating instructions for all maintenance and lubrication instructions and requirements.

DRIVE SHAFT BEARINGS

Pillow block style bearing are used on the drive shaft. See Drum Seal Plate Assemblies, Lubrication Guidelines for more information. See Figure 3.2

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Figure 3.2

WS1169

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WARNING!

CLEANING THE MIXER

WARNING!

Tighten Belt Belt Tight

Clutch Roller

To avoid personal injury, always turn engine/motor off and wait for all motion to stop before cleaning.

To achieve satisfactory performance from the mixer, it is essential to give the drum reasonable care. Clean the mixer after each use, before the mortar dries and becomes hard. Never permit mortar to harden on either the inside or outside of the drum. Do not pound or dent the drum as this impairs mixing efﬁciency and can cause spot wear on the drum surface. Spray the entire unit off after each use.

It is important to keep the inside of the mixing drum free of hardened mortar. After discharging the last batch of mortar each day, add a pailful of water and two shovelfuls of gravel to the drum. This will scour the inside of the drum. Mix for about two minutes, discharge and rinse the drum with water.

ADJUSTMENT

To avoid personal injury, always turn off engine/motor and wait for all motion to stop before making adjustments or repairs.

RUBBER WIPER BLADES

Adjust rubber wipers so they ﬁt snugly against the drum but not to the point that they fold over when the blades rotate.

ENGINE/MOTOR DRIVE

See Figure 4 (800MP & 1200MP Models)

1. Check the roller chain regularly so with one strand tight, the slack strand can be moved approximately one half of an inch. If an adjustment is required, loosen the bolts on the pillow block bearings and slide the pillow block/shaft assembly toward or away from the driven sprocket as necessary.

Pillow Block

2. Align the pulleys so the belts will run straight. Make sure all set screws are tightened on the pulleys when you are ﬁnished.

Figure 4

3. To set the belt tension, loosen the bolts that hold the engine or motor to the mounting plate. Move the clutch lever to the engaged position. Slide the engine or motor in the mounting slots until the belt is tight, then slide the engine or motor back approximately 1/4". Tighten the mounting bolts.

4. Adjust belt ﬁngers so they allow disengagement of the drive, but they must not touch the belt when the clutch is disengaged.

STORAGE

For short term storage, clean the mixer and store in a dry place. If the mixer is not to be used for an extended period of time, service the mixer completely and store in a dry place.

1. Refer to the engine/motor instructions for storage instructions.

2. Cover exposed metal surfaces with a thin coat of SAE 30 weight engine oil.

3. Lubricate per instructions outlined in the LUBRICATION section (page 12).

SERVICING THE MIXER

1. Clean mixer thoroughly.

2. Check all bearings and seals for proper operation.

3. Check mixing arms, blades, and wipers for damage or wear.

4. Any damaged or excessively-worn parts should be replaced.

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800MP/1200MP AXLE ASSEMBLY

800MP/1200MP AXLE ASSEMBLY PARTS BREAKDOWN

REF # NAME PART# Quantity

1 TORSION AXLE ASSEMBLY WX2079 1

2 WHEEL & TIRE ASSEMBLY WX2080 2

3 LUG NUT WR1213 10

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