Stow MS-40H User Manual

PARTS AND OPERATION MANUAL

A DIVISION OF MULTIQUIP INC.

PLASTER/MORTAR

MIXERS

MS-40H

STOW

© COPYRIGHT 2002 MULTIQUIP INC.

A DIVISION OF MULTIQUIP INC.

(Steel-Drum Hydraulic)

Revision #1 (05/17/02)

STOW CONSTRUCTION EQUIPMENT PARTS DEPARTMENT:

A DIVISION OF MULTIQUIP INC.

POST OFFICE BOX 6254 FAX: [phone]

CARSON, CALIFORNIA 90749
310-537-3700 • 888-252-STOW [888-252-7869] 800-478-1244
FAX: [phone] • FAX: [phone] FAX: [phone]
E-MAIL: [e-mail] • WWW: stowmfg.com

800-427-1244

SERVICE DEPARTMENT/TECHNICAL ASSISTANCE:

PAGE 2 — STOW MS-40H HYDRAULIC MIXER— PARTS & OPERATION MANUAL — REV. #1 (05/17/02)

HERE'S HOW TO GET HELP

PLEASE HAVE THE MODEL AND SERIAL NUMBER
ON-HAND WHEN CALLING

PARTS DEPARTMENT

800-427-1244 or 310-537-3700
FAX: [phone] or 310-637-3284

SERVICE DEPARTMENT/TECHNICAL ASSISTANCE

800-478-1244 or 310-537-3700
FAX: [phone]

WARRANTY DEPARTMENT

888-661-4279, or 310-661-4279
FAX: [phone]

MAIN

800-421-1244 or 310-537-3700
FAX: [phone]

STOW MS-40H HYDRAULIC MIXER — PARTS & OPERATION MANUAL — REV. #1 (05/17/02) — PAGE 3

TABLE OF CONTENTS

Here's How To Get Help ........................................... 3

Table Of Contents .................................................... 4

Parts Ordering Procedures ...................................... 5

Operation and Safety Decals ................................... 6

Rules For Safe Operation .....................................7-8

Specifications ........................................................... 9

General Information ............................................... 10

MQ STOW — Mortar Mixer

Controls .................................................................. 11

Electric Motor ......................................................... 12

Towing .................................................................... 13

Paddle Blade Adjustment ....................................... 15

Initial Start-Up ................................................... 16-17

Maintenance .......................................................... 18

Troubleshooting (Engine) ....................................... 19

Troubleshooting (Engine/Mixer) ............................. 20

Explanation Of Codes In Remarks Column ........... 22

Suggested Spare Parts .......................................... 23

Nameplate and Decals......................................24-25

Engine End Paddle Assembly ...........................26-27

Tow End Paddle Assembly ................................28-29

Steel Mixing Drum Assembly ............................30-31

Paddle Shaft Assembly ..................................... 32-33

Hydraulic Assembly...........................................34-35

Frame 3 Assembly ............................................ 36-37

Engine Cover Assembly .................................... 38-39

Engine

Honda Engine Assembly ................................... 40-41

5 HP Motor

Single Phase Electric Motor Assembly ............. 42-43

Three Phase Electric Motor Assembly ..............44-45

Terms and Conditions Of Sale — Parts ................. 46

NOTE

Specification and part number
are subject to change without
notice.

PAGE 4 — STOW MS-40H HYDRAULIC MIXER— PARTS & OPERATION MANUAL — REV. #1 (05/17/02)

PARTS ORDERING PROCEDURES

n

Dealer account number

n

Dealer name and address

n

Shipping address (if different than billing address)

n

Return fax number

n

Applicable model number

n

Quantity, part number and description of each part

n

Specify preferred method of shipment:

UPS Ground

•

UPS Second Day or Third Day*

•

UPS Next Day*

•

Federal Express Priority One (please provide us with your Federal

•

Express account number)*

Airborne Express*

•

Truck or parcel post

•

*Normally shipped the same day the order is received, if prior to 2PM west coast time.

Earn Extra Discounts when

you order by FAX!

All parts orders which include complete part numbers
and are received by fax qualify for the following extra
discounts:

Number of
line items ordered Additional Discount

1-9 items 3%
10+ items** 5%

Get special freight allowances
when you order 10 or more
line items via FAX!**

n

UPS Ground Service at no charge for freight

n

PS Third Day Service at one-half of actual freight cost

No other allowances on freight shipped by any other carrier.
**Common nuts, bolts and washers (all items under $1.00 list price)

do not count towards the 10+ line items.

Now! Direct TOLL-FREE access

Extra Fax DiscountExtra Fax Discount

Extra Fax Discount

Extra Fax DiscountExtra Fax Discount

for Domestic USAfor Domestic USA

for Domestic USA

for Domestic USAfor Domestic USA

Dealers OnlyDealers Only

Dealers Only

Dealers OnlyDealers Only

to our Parts Department!

Toll-free nationwide:

800-421-1244

Toll-free FAX:

*DISCOUNTS ARE SUBJECT TO CHANGE*

Fax order discount and UPS special programs revised June 1, 1995

STOW MS-40H HYDRAULIC MIXER — PARTS & OPERATION MANUAL — REV. #1 (05/17/02) — PAGE 5

800/6-PARTS-7 • 800-672-7877

MS-40H HYDRAULIC MIXER — OPERATION AND SAFETY DECALS

Machine Safety Decals

This STOW mixer is equipped with a number of safety decals. These decals are provided for operator safety and maintenance
information. The illustration below shows these decals as they appear on the mixer. Should any of these decals become unreadable,
replacements can be obtained from your dealer.

A DIVISION OF MULTIQUIP INC.

SAFETY INSTRUCTIONS

1. Read owners manuals before operating.

2. Keep unauthorized and untrained people away from machine during operation.

3. Make sure all safety devices are in place before this machine is started.

4. Make sure engine is turned off and spark plug wire is disconnected before cleaning the
machine.

5. Keep hands and fingers away from moving objects.

6. Do not operate machine in an enclosed area. Proper ventilation is required.

7. Never leave machine unattended when operating.

8. Always stop engine and allow engine to cool before adding fuel or oil.

STOW CONCRETE PRODUCTS — A MULTIQUIP COMPANY — CARSON, CALIFORNIA

P/N 924801

PAGE 6 — STOW MS-40H HYDRAULIC MIXER— PARTS & OPERATION MANUAL — REV. #1 (05/17/02)

MS-40H HYDRAULIC MIXER — RULES FOR SAFE OPERATION

■

CAUTION:

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 MS-40H mixer:

GENERAL SAFETY

■

DO NOT operate or service this equipment
before reading this entire manual.

■

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 touch the hot exhaust manifold, muffler or cylinder. Allow
these parts to cool before
servicing engine or mixer.

■

High Temperatures – Allow the engine to cool before adding
fuel or performing service and maintenance functions. Contact

hot

with

■

The engine section of this mixer (gasoline only) requires an
adequate free flow of cooling air. Never operate the mixer in

components can cause serious burns.

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. Remember the
mixer's engine gives off DEADLY
carbon monoxide gas.

■

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.

■

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.

■

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

■

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 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
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.

smoke around or near the

STOW MS-40H HYDRAULIC MIXER — PARTS & OPERATION MANUAL — REV. #1 (05/17/02) — PAGE 7

MS-40H HYDRAULIC MIXER — RULES FOR SAFE OPERATION

■

CAUTION:

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 MS-40HSHD hydraulic mixers:

GENERAL SAFETY

■

Stop the engine when leaving the mixer unattended.

■

Block the unit when leaving or when using on a slope.

■

Maintain this equipment in a safe operating condition at all
times.

■

Always stop the engine before servicing, adding fuel and oil.

■

NEVER Run engine without air filter. Severe engine may

occur.

■

Always service air cleaner frequently to prevent carburetor
malfunction.

■

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

■

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 use accessories or attachments, which are not
recommended by Multiquip for this equipment. Damage to
the equipment and/or injury to user may result.

■

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 pump.

■

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.

Caution must be exercised while servicing this equipment.
Rotating and moving parts can cause injury if contacted.

■

When towing, an adequate safety chain must be fastened to
the frame, refer to page 13.

■

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

■

Unauthorized equipment modifications will void all warranties.

■

Check all fasteners periodically for tightness. Also check
towing tongue bolt, lock nut and wheel lug nuts for wear.

■

Stop the engine and disconnect the spark plug before allowing
anybody’s hands in the mixing drum.

■

Never pour or spray water over the engine or electric motor.

■

Always stand clear of dump handle when mixer is in operation.
Any binding of material between the mixer blades and drum
will cause drum and handle to quickly move in the discharge
position.

■

Depending on type of mixer, test the
the gasoline engine or electric motor before operating. The
purpose of these switches is to shut down the engine or motor
of the mixer.

Emergencies

■

Always know the location of the nearest
and

first aid kit

Also know the phone numbers of the nearest

doctor

invaluable in the case of an emergency.

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.

■

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

. Know the location of the nearest telephone.

and

fire department

ON/OFF

switch for either

fire extinguisher

ambulance

. This information will be

,

CAUTION:

■

guards and safety devices are attached and in

place.

PAGE 8 — STOW MS-40H HYDRAULIC MIXER— PARTS & OPERATION MANUAL — REV. #1 (05/17/02)

■

DO NOT operate this equipment unless all

■

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

Always know the location of the nearest
and

first aid kit

Also know the phone numbers of the nearest

doctor

invaluable in the case of an emergency.

and

. Know the location of the nearest telephone.

fire department

. This information will be

fire extinguisher

ambulance

,

MS-40H HYDRAULIC MIXER — SPECIFICATIONS

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NOTE

In accordance with our established policy of constant
improvement, we reserve the right to amend these
specifications at any time without notice.

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STOW MS-40H HYDRAULIC MIXER — PARTS & OPERATION MANUAL — REV. #1 (05/17/02) — PAGE 9

MS-40H HYDRAULIC MIXER — GENERAL INFORMATION

GENERAL

The STOW MS-40H plaster and mortar hydraulic mixer is
shipped completely assembled and has been factory tested.

The drum batch capacity of these mixers is between 3.5 and

4.0 bags. With proper care, they will give continuous service
year-after-year.

This mixer can be powered by either gasoline or electric motors.
The power from the engine rotates a hydraulic pump which
provides hydraulic fluid to a
control valve directs fluid to the hydraulic motor which causes
the paddle shaft to rotate. This type of hydraulic pump design
provides high mixing torque and eliminates V-belts, pulleys ect.

BEFORE STARTING

Before starting the engine, read the engine owners manual and
thoroughly understand the safety information.

Check the items listed below:

OIL LEVELS

Be sure to check the oil levels in the engine and hydraulic
reservoir before starting the unit.

HARDWARE

directional control

valve. The

GASOLINE ENGINE CARE

For care and operation of the gasoline engine, refer to the
engine manufacturer’s operating instructions furnished with the
engine. We recommend draining and refilling the engine
crankcase at least every thirty hours of operation. Check the
engine oil level daily.

GASOLINE MIXER OFF/ON SWITCH

This feature is on gasoline engine mixers only. Located on the
side of the engine cover. The purpose of this switch is to start
and stop the mixer in normal operation.

ELECTRIC MOTOR MIXER OFF/ON SWITCH

This feature is on electric motor mixers only. This switch is located
next to the motor. Lift the engine cover to gain access to this
switch. The purpose of this switch is to start and stop the mixer
in normal operation. Never use the electric motor in an explosive
environment.

ENGINE THROTTLE AND CHOKE CONTROLS

Please refer to the engine owners manual for specific
instructions.

Check all hardware on the mixer before starting. Periodically
inspect all hardware. Loose hardware can contribute to early
component failure and poor performance. Use the torque chart
below as a general guideline and keep all hardware tight:

HARDWARE DIA TORQUE (LB./FT.)

5/16"- 18 24
3/8" - 24 37
1/2" - 13 39
1/2" - 13 (Grade 8) 90

PAGE 10 — STOW MS-40H HYDRAULIC MIXER— PARTS & OPERATION MANUAL — REV. #1 (05/17/02)

MS-40H HYDRAULIC MIXER — CONTROLS

Figure 1. Mixer

Safety Grill — Provided for operator safety. This safety grill is

designed to keep hands and solid objects out of the mixing
drum when in use. This grill should be closed at all times when
mixer is in use. DO NOT remove the grill or grill opening bar.
Keep the grill clean by washing it down daily.

Bag Cutter— This feature allows compound mixing bags to be
opened easily, therefore allowing the contents of the bag to fall
directly into the mixing drum.

Mixing Paddles — Used in the mixing of material. This unit
uses four different types of paddles to provide a fast uniform
mix.

Manual Dump Handle — Pull this handle downward to dump
the contents of the drum. Push the handle upward to return the
drum to its vertical position.

Hydraulic Dump Lever (Option) — Pull lever OUT toward
the engine to engage. Once lever is engaged tub (drum) will
automatically discharge material. push lever IN to return mix
position.

Blade Control Lever — Pull lever OUT to mix material, place
lever in CENTER position (neutral) for no mixing, push lever

IN to reverse blade direction.

Mixing Drum — Made of

concrete, mortar, plaster are to be placed into this drum for
mixing. Always clean the drum after each use.

Tow Bar — When towing is required, connect tow bar to a
vehicle. Reference page 13.

Engine Cover — Lift this cover to gain access to the engine
compartment.

ON/OFF Switch (gasoline) — This switch is provided on

with gasoline

engine cover. When activated it will shut down the engine.
ON/OFF Switch (electric) — This switch is provided on mixers

with electric motors. To gain access to this switch, lift the engine
cover. When activated it will shut down the electric motor.

Blade Engagement Lever — Push the lever in, toward the
engine to engage. Once lever is engaged paddle shaft will
rotate. To disengage pull the lever backwards.

Zerk Fitting — There is, on each end of the mixing drum a zerk
grease fitting. These fittings lubricate the dumping mechanism.
Lubricate both fittings at least twice a week.

Oil Sight Glass — Indicates the level of the hydraulic oil in the
reservoir. Oil should be visible within 3/4 height of sight glass.

steel

. Mixing materials such as

mixers

engines only and is located on the side of the

STOW MS-40H HYDRAULIC MIXER — PARTS & OPERATION MANUAL — REV. #1 (05/17/02) — PAGE 11

MS-40H HYDRAULIC MIXER — ELECTRIC MOTOR

ELECTRIC MOTOR

For lubrication care and operation of the electric motor, refer to
your electric motor instruction booklet furnished with the 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 for this mixer is available in either a 5 HP
single-phase or 5 HP three-phase configuration. The input voltage
requirement for these motors is either 230 VAC or 440 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.

.

It is strongly recommended that all electrical wiring be
done by a
should be given to the electric switch as well as the
over-and-under voltage protection devices as per
regulations set forth in the local electrical safety code
handbook.

PH5745049N/PP03-6L845049N/PR03-6L

NOTE

licensed electrician

. Special attention

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Figure 2. Single Phase Electric Motor with 12 inch Pigtail Cable

PAGE 12 — STOW MS-40H HYDRAULIC MIXER— PARTS & OPERATION MANUAL — REV. #1 (05/17/02)

MS-40H HYDRAULIC MIXER — TOWING

NOTE

Before towing, check with local and state laws for proper
compliance.

The tow bar and chain must be properly attached to the mixer
and towing vehicle prior to towing. Refer to the following
installation instruction:

Step 1.

Insert the Draw Bar into the main frame. Secure, utilizing the 3/4"
bolt (grade 5) and nylock nut. Tighten to 100 foot pounds.

STEP 1

DRAW BAR

BOLT & NUT

REMOVE EXCESS
CHAIN (SLACK)

It is critical that the length of the chain be properly
adjusted, to prevent the
stand from dropping to the ground (contact) in the event
the Draw Bar becomes disconnected from the towing
vehicle.

If a new safety chain is required use P/N 13363. For a new
connector link use P/N 01004.

STEP 3

VEHICLE
CONNECTOR LINK

DRAW BAR

BOTTOM CONNECTOR LINK

NOTE

Draw Bar

and the front mixer

CAUTION:

Step 2.

Install the chain through the hole located between the frame
gusset and frame angle. Loop the chain together and place under
the Draw Bar. Secure with connector link.

INSERT CHAIN THROUGH
THE HOLE

FRAME ANGLE

FRAME GUSSET

CONNECTOR LINK

Step 3.

STEP 2

DRAW BAR

BALL HITCH COUPLER

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

2. Use only the 2" ball diameter as indicated on your 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. Be sure the coupler is secured to the hitch ball and the lock
lever is down tight and locked.

Recheck tightness again after towing about 50 miles.

4. Check that trailer safety chains are properly connected.

■

Check the following before towing:

Extend the chain along the length of the Draw Bar, remove excess
chain (slack) and secure to bottom connector link. Secure the
chain to the towing vehicle, using the connector link.

STOW MS-40H HYDRAULIC MIXER — PARTS & OPERATION MANUAL — REV. #1 (05/17/02) — PAGE 13

MS-40H HYDRAULIC MIXER — PADDLE BLADE ADJUSTMENT

Figure 3 illustrates the paddle blade adjustment when using a steel drum. If material builds up on the drum, use a rubber mallet to
dislodge the material without adverse effect to the drum.

Figure 3. Paddle Blade Adjustment, Steel Drum

PAGE 14 — STOW MS-40H HYDRAULIC MIXER— PARTS & OPERATION MANUAL — REV. #1 (05/17/02)

MS-40H HYDRAULIC MIXER — NOTE PAGE

STOW MS-40H HYDRAULIC MIXER — PARTS & OPERATION MANUAL — REV. #1 (05/17/02) — PAGE 15