OPERATIONS MANUAL
SERIES
MODEL EM-70S (STEEL)
MODEL EM-70P (PLASTIC)
PLASTER AND MORTAR MIXER
(GASOLINE ENGINE/ELECTRIC MOTOR)
Revision #1 (08/10/04)
THIS MANUAL MUST ACCOMPANY
THE EQUIPMENT AT ALL TIMES.
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: work in aALWAYS
well ventilated area, and work with
approved safety equipment, such as
dust masks that are specially designed
to filter out microscopic particles.
PAGE 2 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
HERE'S HOW TO GET HELP
PLEASE HAVE THE MODEL AND SERIAL
NUMBER
MULTIQUIP CORPORATE OFFICE
18910 Wilmington Ave. 800-421-1244
Carson, CA 90746
Email: mq@multiquip.com
Internet: www.multiquip.com
PARTS DEPARTMENT
800-427-1244
310-537-3700
MAYCO PARTS
800-306-2926
310-537-3700
SERVICE DEPARTMENT
800-421-1244
310-537-3700
TECHNICAL ASSISTANCE
800-478-1244
WARRANTY DEPARTMENT
800-421-1244,
310-537-3700,
ON-HAND
EXT.
279
EXT.
279
WHEN CALLING
FAX:
310-537-3927
FAX:
800-672-7877
FAX:
310-637-3284
FAX:
800-672-7877
FAX:
310-637-3284
FAX:
310-537-4259
FAX:
310-631-5032
FAX:
310-537-1173
© COPYRIGHT 2004, Multiquip INC.
Multiquip Inc, the MQ logo and the Essick logo are registered trademarks of Multiquip Inc. and may not be used, reproduced, or
altered without written permission. All other trademarks are the property of thier respective owners and used with permission.
This manual
should remain with the unit if resold.
The information and specifications included in this publication were in effect at the time of approval for printing. Illustrations are
based on the
this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change
specifications, design or the information published in this publication at any time without notice and without incurring any obligations.
MUST accompany the equipment at all times. This manual is considered a permanent part of the equipment and
MQ Essick EM-70 Series Plaster/Mortar Mixer.
Illustrations, descriptions, references and technical data contained in
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 3
EM-70 PLASTER/MORTAR MIXER — TABLE OF CONTENTS
MQ ESSICK —
EM-70 SERIES
PLASTER/MORTAR MIXER
Here's How To Get Help .............................................3
Table Of Contents ......................................................4
Parts Ordering Procedures ........................................ 5
Specifications .............................................................6
Dimensions ................................................................7
Safety Messages Alert Symbols ............................ 8-9
Rules For Safe Operation .................................. 10-11
Towing Guidelines ....................................................12
Safety Chain Connection .........................................13
Operation and Safey Decals ....................................14
General Information ................................................. 15
Major Components ..................................................16
Basic Engine Components ....................................... 17
Electric Motor ..................................................... 18-19
Paddle Blade Adjustment (Steel Drum) ................... 20
Paddle Blade Adjustment (Poly Drum) .....................21
Inspection ........................................................... 22-23
Start-Up Procedures .......................................... 24-26
Operation .................................................................26
Shut-Down Procedures ............................................27
Maintenance (Engine)........................................ 28-29
Maintenance (Mixer) .......................................... 30-34
Troubleshooting (Engine) ................................... 35-36
Troubleshooting (Mixer/Electric Motor) .................... 37
Electric Motor Wiring Diagram ................................. 38
Specifications and are
NOTE
PAGE 4 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
subject to change without
notice.
PARTS ORDERING PROCEDURES
When ordering parts,
please supply the following information:
❒❒
❒ Dealer account number
❒❒
❒❒
❒ Dealer name and address
❒❒
❒❒
❒ Shipping address (if different than billing address)
❒❒
❒❒
❒ Return fax number
❒❒
❒❒
❒ Applicable model number
❒❒
❒❒
❒ Quantity, part number and description of each part
❒❒
❒❒
❒ Specify preferred method of shipment:
❒❒
✓ FedEx or UPS Ground
✓ FedEx or UPS Second Day or Third Day
✓ FedEx or UPS Next Day
✓ Federal Express Priority One
✓ DHL
✓ Tr u c k
Note: Unless otherwise indicated by customer, all
orders are treated as “Standard Orders”, and will
ship within 24 hours. We will make every effort to ship
“Air Shipments” the same day that the order is
received, if prior to 2PM west coast time. “Stock
Orders” must be so noted on fax or web forms.
Here’s how to get help...
Please have the model and serial number
on hand when calling.
MULTIQUIP CORPORATE OFFICE
18910 Wilmington Ave. 800-421-1244
FAX:
Carson, CA 90746
Email: mq@multiquip.com
Internet: www.multiquip.com
PARTS DEPARTMENT
800-427-1244
310-537-3700
MAYCO PARTS
800-306-2926
310-537-3700
SERVICE DEPARTMENT
800-421-1244
310-537-3700
TECHNICAL ASSISTANCE
800-478-1244
WARRANTY DEPARTMENT
800-421-1244,
310-537-3700,
EXT.
EXT.
279
279
310-537-3927
FAX:
800-672-7877
FAX:
310-637-3284
FAX:
800-672-7877
FAX:
310-637-3284
FAX:
310-537-4259
FAX:
310-631-5032
FAX:
310-537-1173
Place Your Parts Order Via Web or Fax
For Even More Savings!
(Domestic USA Dealers Only)
Extra Discounts!
All parts orders which include complete part numbers and
are received by our automated web parts order system, or
by fax qualify for the following extra discounts:
Ordered Standard Stock orders
via orders ($750 list and above)
Fax 3% 10%
Web 5% 10%
Special freight allowances
when you order 10 or more
line items via Web or Fax!**
FedEx Ground Service
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.
NOTE: DISCOUNTS ARE SUBJECT TO CHANGE
at no charge for freight
Multiquip INC.
18910 WILMINGTON AVENUE
POST OFFICE BOX 6254
CARSON, CALIFORNIA 90749
310-537-3700 • 800-421-1244
FAX: 310-537-3927
E-MAIL: mq@multiquip.com
INTERNET: www.multiquip.com
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 5
Direct TOLL-FREE access
to our Parts Department:
Toll-free nationwide — 800-427-1244
Toll-free FAX — 800-6-PARTS-7
(800/672-7877)
EM-70 PLASTER/MORTAR MIXER — SPECIFICATIONS
SNOITACIFICEPSREXIM.1ELBAT
yticapaC)sretil891(tf.uc0.7
yticapaCgaBsgab2/1-2ot2/1-1
thgieW).gk753(.sbl887
eldnaHpmuD/WthgieH).mc581(.ni3
7
thgieHegrahcsiD).mc35(.ni12
evirDraeG/tleB-V
noitcApmuDlaunaM
)ROTOMCIRTCELE&ENIGNE(SNOITACIFICEPS.2ELBAT
ledoM2XH1K061XGADNOH2AH1K042XGADNOH203S922L53RODLAB
epyT
ekortSXeroB
tnemecalpsiDcc57.8cc18.41A/N
cirtcelE/enignE
rotoM
tuptuOxaMM.P.R0063/PH5.5.M.P.R0063/.P.H0.8MPR5271/.P.H5.
yticapaCknaTleuF
.ni56.1X.ni15.2
)mm24xmm8.36(
snollaG159.
)sretiL6.3(
latnoziroH,ekorts4delooc-riA
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nignEenilosaGtfahS
2X.ni09.2
.ni03.
)mm85xmm37(
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snollaG.S.U95.1.xorppA
)sretiL6(
A/N
A/N
elgniS,032/511,PH5.1
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leuFenilosaGdedaelnUA/N
CliOebuLstnip3/1-2A/N
yticapa
lortnoCdeepS
dohteM
dohteMgnitratStratSlioceRA/N
snemiD
)HxWxL(snoi
thgieWteNyrD
.ni8.31X2.41x2.21
)mm533X263X213(
).gK51(.sbl33).gK52(.sbl1.55).gK01(.sbl22.xorppA
epyTthgiew-ylFlagufirtneCA/N
.ni1.61X9.61x0.41
)mm014X034X553(
In accordance with our established
NOTE
policy of constant improvement, we
reserve the right to amend these
specifications at any time without
notice.
PAGE 6 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
.ni60.9X7.8x3.31
)mm032X022X833(
EM-70 PLASTER/MORTAR MIXER — DIMENSIONS
SNOISNEMID.3ELBAT
noitpircseD)mc(.nisnoisnemiD
htgneL
)raBwoT/w(
)mc071(.ni76
htdiW)mc721(.ni05
thgieH)mc241(.ni65
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 7
Figure 1. Dimensions
EM-70 PLASTER/MORTAR MIXER —
SAFETY MESSAGE ALERT SYMBOLS
FOR YOUR SAFETY AND THE 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
NOTE
instructions for data relative to its safe operation.
Before using this mixer, 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.
DANGERDANGER
DANGER
DANGERDANGER
You WILL be
NOT follow directions.
KILLED
instructions for the safe and efficient
operation of the MQ Essick
EM-70
Refer to the engine manufacturers
or
mortar
SERIOUSLY
and
plaster
injured if you DO
mixer.
HAZARD SYMBOLS
Potential hazards associated with the operation of an
70 Plaster/Mortar Mixer
Symbols which appear throughout this manual, and will be
referenced in conjunction with Safety Message Alert
Symbols.
Engine exhaust gases contain
poisonous carbon monoxide. This gas
is colorless and odorless, and can
cause death if inhaled. NEVER operate
this equipment in a confined area or
enclosed structure that does not provide ample free flow
air.
Gasoline is extremely flammable, and
its vapors can cause an explosion if
ignited. DO NOT start the engine near
spilled fuel or combustible fluids.
DO NOT fill the fuel tank while the engine is running or
hot. DO NOT overfill tank, since spilled fuel could ignite if
it comes into contact with hot engine parts or sparks from
the ignition system. Store fuel in approved containers, in
well-ventilated areas and away from sparks and flames.
will be referenced with Hazard
Lethal Exhaust Gases
WARNINGWARNING
WARNING
WARNINGWARNING
WARNINGWARNING
WARNING
WARNINGWARNING
WARNINGWARNING
WARNING
WARNINGWARNING
Lethan Exhaust Gas Hazards
Explosive Fuel Hazards
EM-
Burn Hazards
WARNINGWARNING
WARNING
WARNINGWARNING
You CAN be
NOT follow directions.
CAUTION
You CAN be
KILLED
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
INJURED
PAGE 8 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
or
SERIOUSLY
if you DO NOT follow directions.
injured if you DO
Engine components can generate extreme
heat. To prevent burns, DO NOT touch
these areas while the engine is running or
immediately after operations. Never
operate the engine with heat shields or heat
guards removed.
WARNINGWARNING
WARNING
WARNINGWARNING
ALWAYS wear approved
protection when required.
Respiratory Hazards
respiratory
EM-70 PLASTER/MORTAR MIXER —
SAFETY MESSAGE ALERT SYMBOLS
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
NEVER operate equipment with covers,
or guards removed. Keep fingers, hands,
hair and clothing away from all moving
parts to prevent injury.
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
ALWAYS place the power source, circuit
breakers or ON/OFF switch in the OFF
position, when the generator is not in use,
unless connected to transfer switch.
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
ALWAYS wear approved eye and
hearing protection.
Rotating Parts Hazards
Accidental Starting Hazards
Eye and Hearing Hazards
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
Other important messages are provided throughout this
manual to help prevent damage to your light tower, other
property, or the surrounding environment.
Equipment Damage
Hazards
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 9
EM-70 PLASTER/MORTAR MIXER — RULES FOR SAFE OPERATION
■
DANGERDANGER
DANGER
DANGERDANGER
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 EM-70 plaster and mortar 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, steel-toed boots and other
protective devices required by the job.
Read this manual!
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 with
serious burns.
■
The engine section of this mixer requires an adequate
free flow of cooling air.
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
gas.
hot!
NEVER
carbon monoxide
components can cause
operate the mixer in any
■
ALWAYS refuel in a well-ventilated area, away from
sparks and open flames.
■
NEVER operate this equipment when not
feeling well due to fatigue, llness or taking
medicine.
■
NEVER operate this equipment under the influence of
drugs
■
ALWAYS wear proper respiratory (mask),
hearing and eye protection equipment when
operating the mixer.
■
NEVER place hands inside the drum while the blades are
rotating.
■
Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
■
Manufacture does not assume responsibility for any
accident due to equipment modifications.
■
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.
or
alcohol
.
■
ALWAYS use extreme caution when working with
flammable liquids. When refueling, stop the engine and
allow it to cool. DO NOT
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
■
Topping-off to filler port is dangerous, as it tends to spill
fuel.
■
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.
NEVER! start the engine or engage the paddle arms
when the drum is in the discharge (down) position.
bodily harm or even death.
WARNINGWARNING
WARNING
WARNINGWARNING
smoke
around
Starting the Mixer Engine
PAGE 10 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
EM-70 PLASTER/MORTAR MIXER — RULES FOR SAFE OPERATION
■
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.
■
DO NOT operate this equipment unless all guards and
safety devices are attached and in place.
■
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. See Towing Guidelines section in this manual.
■
Keep all
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.
inexperienced
and
unauthorized
people away
TRANSPORTING
■
■
■
MAINTENANCE
■
■
■
■
■
■
EMERGENCIES
■
ALWAYS know the location of the nearest
extinguisher
ALWAYS shutdown engine before transporting.
Tighten fuel tank cap securely and close fuel cock to
prevent fuel from spilling.
Drain fuel when transporting mixer over long distances
or bad roads.
NEVER lubricate components or attempt service on a
running mixer.
ALWAYS allow the mixer a proper amount of time to
cool before servicing.
Keep the mixer in proper running condition.
Fix damage to the mixer immediately and always replace
broken parts.
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.
fire
and first aid kit.
Stand Clear of the
WARNINGWARNING
WARNING
WARNINGWARNING
Always stand clear of the dump handle when the mixer
is in operation. Any binding of material between the mixer
blades and the drum will cause the drum handle to quickly
move and could cause bodily harm.
■
Depending on type of mixer, test the
either the gasoline engine or electric motor before operating.
The purpose of these switches is to shut down the engine
or motor of the mixer.
■
Refer to the
technical questions or information recommended by
Multiquip for this equipment. Damage to the equipment
and/or injury to user may result.
HONDA Engine Owner's Manual
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 11
Mixer when in use
ON/OFF
switch for
for engine
■
In emergencies
nearest phone or
Also know the phone numbers of the nearest
ambulance, doctor
information will be invaluable in the case of an
emergency.
always
know the location of the
keep a phone on the job site
and
fire department
.
. This
EM-70 PLASTER/MORTAR MIXER — TOWING GUIDELINES
Towing Safety Precautions
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
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:
■
Check with your county or state safety towing regulations
department before towing your
■
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 55 MPH, however
before towing your mixer, check your local state, and
county vehicle towing requirements. Recommended offroad towing is not to exceed 10 or 15 MPH or less
depending on type of terrain.
■
Place
chocked blocks
rolling,
vehicle.
■
Inflate tires to correct pressure, inspect tires for cuts,
and excessive wear. See Table 4 (Tire Wear
Troubleshooting).
■
When towing of the mixer is required, place the drum in
the up position (mouth facing upwards) and lock the drum
latch.
while parked, if disconnected from towing
Regularly Inspect
Towing Components
mixer
.
underneath wheels to prevent
■
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.
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.
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
If the mixer tow bar is deformed or damaged, replace the
entire
tow bar. NEVER tow the mixer with a defective
tow bar. There exists the possibility of the mixer separating
from the towing vehicle.
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 (Pentle and Loop)
1. Make sure the bumper on the towing vehicle is equipped
to handle either a pentle 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 the tow bar to the towing vehicle and to
the unit being towed.
Replacing
Towing Components
PAGE 12 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
EM-70 PLASTER/MORTAR MIXER — SAFETY CHAIN CONNECTION
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
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 2 for the installation of the
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.
Always Tow with
a Safety Chain
safety chain
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 (connector link) 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
to the the ground (contact) in the event the draw bar
becomes disconnected from the towing vehicle.
DO NOT tow the mixer unless the mixing drum is
completely empty. ALWAYS
pin is fully engaged to the
stop block. This will keep the drum from rotating.
and the front of the mixer stand from dropping
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
right
Drum Saftey
when Towing
make sure the drum latch
(Figure 3) of the drum
Figure 2. Tow Bar and Safety Chain Installation
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 13
Figure 3. Drum Latch Pin
(Tow or Locked Position)
EM-70 PLASTER/MORTAR MIXER — OPERATION AND SAFETY DECALS
Machine Safety Decals
The MQ Essick EM-70 mortar and plaster mixer is equipped with a number of safety decals. These decals are provided for
operator safety and maintenance information. Figure 4 below illustrates these decals as they appear on the machine.
Should any of these decals become unreadable, replacements can be obtained from your dealer.
Figure 4. Mixer Operation and Safety Decals
PAGE 14 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
EM-70 PLASTER/MORTAR MIXER — GENERAL INFORMATION
Application
The MQ Essick EM-70 series mixers (drum capacity of 7.0
cu. ft./198 liters) are shipped completely assembled and have
been factory tested and are ready for use.
This mixer is
and
mortar
and is not suitable for the mixing of
substances. The mixer
only
intended for the production of
plaster
. The mixer must be used for its intended purpose
flammable
must not be used
or
explosive
in an explosive
atmosphere. This mixer has a batch capacity between 2-1/2
Ensure that the extension cable is carefully laid out avoiding
wet areas, sharp edges
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
and 3-1/2 bags.
Check all hardware on the mixer before starting. Periodically
Power Plants
The EM-70 can be powered by either a Honda GX240K1HA2
or GX160K1HX2 air-cooled, 4-stroke gasoline engine or a
1.5 electric motor. Refer to Table 2 for specific engine or
electric motor data information.
inspect all hardware. Loose hardware can contribute to early
component failure and poor performance. Use Table 4 as
general guideline when torqueing of mixer hardware is
required. Remember to keep all mixer hardware components
tight.
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
power cord into a receptacle, that a G.F.C.I. (
Current Interrupter
when inserting the mixer's
Ground Fault
) 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 mm
2
. Choose an
Engine Maintenance
For basic engine maintenance, refer to the engine
maintenance section in this manual. For a more detailed
engine maintenance, refer to the
manual furnished with the engine.
extension cord of adequate current carrying capacity as referenced in Table 5. Remember
cable distance
affects the
current-voltage capacity of the extension cable.
and locations where vehicles
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Engine Owner's
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 15
EM-70 PLASTER/MORTAR MIXER — MAJOR COMPONENTS
9
4
3
2
6
7
5
8
15
10
11
12
13
14
18
9. 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.
10. 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.
16
11. 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.
1
19
17
12. Safety Grill Lock Handle -To prevent injury to hands
and arms, the safety grill should ALWAYS be locked
when the mixing of plaster or mortar is required. Also
Figure 5. Mixer Components
when transporting the mixer the safety grill should be
locked. The safety grill should only be un-locked when
Figure 5 illustrates the basic components and controls of
cleaning of the blades and drum is required.
the MQ Essick EM-70 mixer
13. Pivot Point/Zerk Fitting -There is, on each end of the
1. Tires Ply -The tire ply (layers) number is rated in letters;
This mixer uses 13-inch 4-ply tires.
2. Engine Cover -Lift this cover to gain access to the
engine compartment.
3. Belt Slip Lever -When starting this lever should be
move upward and to the left. For mixing place the lever
in the down position. See attached decal located
adjacent to lever.
4. 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.
5. ON/OFF Switch (gasoline) -This switch is provided
on
mixers with gasoline
engines only and is located
on the side of the engine cover. When activated it will
shut down the engine.
mixing drum a zerk grease fitting. These fittings lubricate
the dumping mechanism. Lubricate both fittings at least
twice a week.
14. Dump Handle Release Pin -Pull this pin outward (spring
loaded) to release the drum, then pull down on the dump
handle to place the drum in the dump position. When
drum is in dump position, pin will automatically lock
drum.
15. Mixing Drum -Mixing materials such as mortar, plaster
are to be placed into this drum for mixing. Always clean
the drum after each use.
16. Tow Bar/Coupler -This mixer uses a 2-inch coupler or
pintle towbar.
17. Safety Chain -This mixer uses a 3/16-inch thick, 72-
inches long zinc-plated saftey chain.
the safety chain when towing.
ALWAYS
connect
6. Latch -Use this latch to secure the engine compartment
18. Forklift Pockets – When lifting of the mixer is required,
cabinet.
7. Drum Bearing -There is on each end of the mixing
drum, a sealed bearing. Bearings are packed and sealed
at the factory and require no further maintenance.
19. Chock Blocks - Place these blocks (not included as
8. Mixing Paddles -Used in the mixing of material. This
unit uses four different types of paddles to provide a
fast uniform mix.
PAGE 16 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
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.
part of the mixer package) under each mixer wheel to
prevent rolling.
EM-70 PLASTER/MORTAR MIXER — ENGINE COMPONENTS
5. Fuel Valve Lever – OPEN to let fuel flow, CLOSE to
stop the flow of fuel.
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.
Operating the engine without an air
NOTE
filter, with a damaged air filter, or a
filter in need of replacement will
allow dirt to enter the engine,
causing rapid engine wear.
Figure 6. Engine Controls and Components
Initial Servicing
The engine (Figure 6) must be checked for proper lubrication
and filled with fuel prior to operation. Refer to the
manufacturers engine manual for instructions & details of
operation and servicing.
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.
DANGERDANGER
DANGER
DANGERDANGER
Adding fuel to the tank should be done only 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.
Explosive
Fuel Hazard
Engine components can generate
extreme heat. 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.
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.
10. Fuel Tank – Holds unleaded gasoline. For additional
information refer to engine owner's manual.
WARNINGWARNING
WARNING
WARNINGWARNING
Burn Hazard
2. Throttle Lever – Used to adjust engine RPM speed
(lever advanced forward
operator
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.
FAST
).
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 17
SLOW
, lever back toward
EM-70 PLASTER/MORTAR MIXER — ELECTRIC MOTOR
Electric Motor
For maintenance 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.
Electric Motor
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
DO NOT spray water at any time on the
Safety
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 7) is provided with the
electrical motor for hookup to a power source. Table 5 shows
the required NEMA connector for the desired motor
horsepower rating. In addition, Table 5 also shows the
matching NEMA approved connector for the required
extension cord.
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935049N/PP02-6L045
esahPelgniS-CAV032-511
gnitaM
AMEN
rotcennoCelcatpeceR
049N/PR02-6L
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
ALWAYS
for the electric motor is
NEMA configuration plug.
make certain that the power source required
correct
Failure
Connections
and always use the correct
to supply the correct
voltage to the motor can severely damage the motor.
Electric Motor
NOTE
It is strongly recommended that all
Figure 7. Single Phase Electric Motor With
electrical wiring be done by a
licensed electrician
.
Special attention 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
12-inch Pigtail
PAGE 18 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
EM-70 PLASTER/MORTAR MIXER — ELECTRIC MOTOR
The motor supplied is wired for 115 VAC grounded operation.
Make certain that the correct size grounded (3-wires)
extension cord is used. See Table 6.
Motors can burn out when the line voltage falls 5% below
the voltage rating of the motor. Failure to use proper voltage
ledoMrotoMegatloV
07-ME
)cirtcelE(
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.
Electric Motor Voltage Switch
1.
ALWAYS
make certain the motor switch is OFF and
the power cord has been disconnected from the power
source.
2. Remove the voltage lock-out bolt
the position of the
voltage change toggle switch
(Figure 7). Change
from
115 VAC to 230 VAC. The mixer is factory wired for 115
VAC operation.
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3. Replace the voltage lock-out bolt.
NOTE
Important!,
voltage to the motor from 115 to 230
VAC the
when changing the input
plug
on the motor power
cord must also be changed. See
Table 4
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 19
EM-70 MIXER — PADDLE BLADE ADJUSTMENT (STEEL DRUM)
Adjust paddles as shown in Figure 8a.
Figure 8a. Paddle Blade Adjustment (Steel Drum)
PAGE 20 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
EM-70 MIXER — PADDLE BLADE ADJUSTMENT (POLY DRUM)
Adjust paddles as shown in Figure 8b.
Figure 8b. Paddle Blade Adjustment (Poly Drum)
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 21
EM-70 PLASTER/MORTAR MIXER — INSPECTION
Before Starting
1. Read
2. Clean the
3. Check the air filter for dirt and dust. If air filter is dirty,
4. Check carburetor for external dirt and dust. Clean with
5. Check fastening nuts and bolts for tightness.
ALWAYS wear approved eye and
hearing protection before operating
the mixer.
NEVER place hands or feet inside the
engine guard cover while the engine is
running. ALWAYS shut the engine down
before performing any kind of maintenance
service on the mixer.
all safety instructions
mixer
, removing dirt and dust, particularly the
engine cooling air inlet, carburetor and air cleaner.
replace air filter with a new one as required.
dry compressed air.
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
at the beginning of manual.
Eyesight and Hearing
Protection
Inspection &
Maintenance Saftey
3. Insert and remove the dipstick without screwing it into
the filler neck. Check the oil level shown on the dipstick.
4. If the oil level is low (Figure 10), fill to the edge of the oil
filler hole with the recommended oil type (Table 7).
Maximum oil capacity is 2.33 pints (1.09 liters)
NOTE
Figure 10. Engine Oil Dipstick (Oil Level)
nosaeS erutarepmeT epyTliO
Reference manufacturer
engine manual for specific
servicing instructions.
EPYTLIO.7ELBAT
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 9) and wipe it clean.
Figure 9. Engine Oil Dipstick (Removal)
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PAGE 22 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
EM-70 PLASTER/MORTAR MIXER — INSPECTION
Fuel Check
DANGERDANGER
DANGER
DANGERDANGER
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
fuels are highly flammable and can be
dangerous if mishandled. DO NOT smoke
while refueling. DO NOT attempt to refuel
the mixer if the engine is
1. Remove the gasoline cap located on top of fuel tank.
2. Visually inspect to see if fuel level is low. If fuel is low,
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 damaged V-belt can adversely affect the
performance of the mixer. If a V-belt is defective or worn
simply replace the V-belt as outlined in the maintenance
section of this manual.
unleaded
gasoline. Motor
hot! or running
Explosive Fuel
Hazard
.
Controls
Start/Stop Switches
This mixer has been equipped with a start/stop switch for
both the gasoline and electric motor mixers. These switches
should be tested every time the engine or electric motor is
started.
Grease Fittings (Dumping Mechanism)
Check the zerk grease fittings at each end of the mixing drum.
These grease fittings lubricate the dumping mechanism. If
the dumping handle is stiff or hard to move lubricate these
fittings.
Blade Check
Check for worn or paddle blades. Make sure that all blades
are adjusted properly. See blade adjustment procedure in
this manual. Replace all defective or damaged blades
immediately.
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 23
EM-70 PLASTER/MORTAR MIXER — START-UP PROCEDURE
This section is intended to assist the operator
with the initial start-up of the EM-70 mixer (with
gasoline engine or electric motor). It is extremely
important that this section be read carefully
before attempting to use the mixer in the field.
DO NOT use your mixer until this section is thoroughly
understood.
WARNINGWARNING
WARNING
WARNINGWARNING
Failure to understand the operation of the EM-70 series
mixers could result in
personal injury
See Figure 5 for the location of any control referenced in
this manual.
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
severe damage
.
NEVER operate the mixer in a confined
area or enclosed area structure that
does not provide ample
General Safety
to the mixer or
Respiratory Hazard
free flow of air
2. To start a cold engine, move the choke lever
3. Move the throttle lever (Figure 13) away from the slow
.
(Figure 12) to the CLOSED position.
Figure 12. Choke Lever
position, about 1/3 of the way toward the fast position.
Start-up Procedure(Gasonline Engine)
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 11) to the ON
position.
Figure 11. Fuel Shut-OFF Lever
Figure 13. Throttle Lever
PAGE 24 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
EM-70 PLASTER/MORTAR MIXER — START-UP PROCEDURE
4. Turn the engine switch (Figure 14) to the ON position.
Figure 14. Engine ON/OFF Switch
5. The main
is (Figure 15) is used to start and stop the engine. Pull
this switch outward to start the engine.
start/stop
switch located on the engine cover
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
Make certain the
placed to the RIGHT (when viewing the mixer from the
towpole end) of the drum stop block which is welded to
the front side of the drum. Also make sure lock pin is
fully engaged (locked). This will prevent the drum from
tipping.
drum lock pin
Preventing Drum Tipping
(Figures 17 and 18) is
Figure 15. Start/Stop Switch (gasoline engine)
6. Place the
STOP
belt slip lever
(disengaged) position.
(Figure 16) in the
START/
Figure 17. Drum Lock Pin (Side-View)
Figure 18. Drum Lock Pin (Right Position)
7. Pull the
resistance, then pull briskly. Return the starter grip
gently.
starter grip
(Figure 19) lightly until you feel
Figure 16. Belt Slip Lever
(Start/Stop Position)
Figure 19. Starter Grip
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 25
EM-70 PLASTER/MORTAR MIXER —
START-UP/OPERATION PROCEDURES
8. Place the belt slip lever (Figure 20) in the
This will tilt the engine placing tension on the V-belts
enabling the shaft to rotate.
Figure 20. Belt Slip Lever (Mix Position)
Start-up Procedure(Electric Motor)
1. Using an adequate size extension cord (see Table 6),
connect one end of the extension cord to the plug on
the electric motor, connect the other end to the power
source. Make sure the motor is configured for the proper
operating voltage.
mix
position.
4. When charging, mixing, or dumping a batch of plaster
or mortar the
left
(when viewing the mixer from the towpole end) of
the drum stop block which is welded to the front side of
the drum. See Figure 21.
This will allow the operator to use both hands on the
drum handle during dumping. Please note that when
the lock pin is placed to the left, the drum will be
maintained in the vertical position as the paddles rotate.
To discharge the material the operator should hold the
dump handle with
discharge the desired amount of material.
Figure 21. Drum Lock Pin (Left Position)
drum lock pin
both hands
should be placed to the
and rotate the drum to
2. Set the electric motor's ON/OFF switch (Figure 7) to
the ON position.
Mixing Dumping
1. The paddle shaft inside the drum should be rotating at
this time.
2. Add a small amount water to the mixing drum.
3. Lift the mixing bag compound onto the steel safety grate
over the bag cutter and let the contents fall into the
drum. Add more water if desired and mix compound to
desired consistency.
Be sure to stand clear of the
when the mixer is operational. Any binding of material
between the mixer blades and the drum will cause the
drum handle to quickly move and could cause bodily
harm.
WARNINGWARNING
WARNING
WARNINGWARNING
Dump Handle Safety
dump handle
(Figure 22)
Figure 22. Stand Clear of Dump Handle
PAGE 26 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
EM-70 PLASTER/MORTAR MIXER — SHUT-DOWN PROCEDURES
Stopping the Mixer (Gasoline Engine)
1. Place the
(Figure 20).
2. Push the main
stop the engine.
3. Turn the fuel shut-off valve to the OFF position.
4. Disconnect the spark plug.
5. Clean mixer as referenced in the maintance section of
this manual.
NOTE
Doing this will verify that the switch is working properly and
presents no danger to the operator.
DANGERDANGER
DANGER
DANGERDANGER
NEVER disable or disconnect the start/stop switch. It is
provided for operator safety.
it is disabled, disconnected or improperly maintained.
belt slip lever
start/stop
It is recommended that the mixer's
Start/Stop switch
the engine after every use.
in the
switch (Figure 15) inward to
DO NOT Disconnect
the Start/Stop Switch
Serious Injury
start/stop
be used to stop
position
may result if
Stopping the Mixer (Electric Motor)
1. Place the electric motor's
the OFF position.
2. Disconnect the electric motor's extension cord from its
power source.
3. Clean mixer as referenced in the maintance section of
this manual.
ON/OFF
switch (Figure 7) in
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 27
EM-70 PLASTER/MORTAR MIXER — MAINTENANCE (ENGINE)
Use Table 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.
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PAGE 28 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
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EM-70 PLASTER/MORTAR MIXER — MAINTENANCE (ENGINE)
Maintenance
Perform the scheduled maintenance procedures as defined
by Table 8 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 23), 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.
ENGINE AIR CLEANER
1. Remove the air cleaner cover and foam filter element as
shown in Figure 25.
2. Tap the paper filter element (Figure 25) several times on
a hard surface to remove dirt, or blow compressed air
[not exceeding 30 psi (207 kPa, 2.1 kgf/cm
filter element from the air cleaner case side.
brush off dirt. Brushing will force dirt into the fibers.
Replace the paper filter element if it is excessively dirty.
3. Clean foam element in warm, soapy water or nonflammable solvent. Rinse and dry thoroughly. Dip the element
in clean engine oil and completely squeeze out the
excess oil from the element before installing.
DO NOT use gasoline as a cleaning solvent to avoid
creating the risk of fire or an explosion.
DANGERDANGER
DANGER
DANGERDANGER
2
)] through the
NEVER
Explosive Hazard
Figure 23. Spark Plug Gap
ENGINE OIL
1. Drain the engine oil when the oil is
Figure 24.
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 24. Engine Oil (Draining)
warm
as shown in
Figure 25. Engine Air Cleaner
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 29
EM-70 PLASTER/MORTAR MIXER — MAINTENANCE (MIXER)
Drum Head Seals
On each end of the mixing drum there is a drum head
containing self-adjusting graphite seals. These seals consist
of packing rings, split gland and spring activated adjusters.
A properly maintained seal prevents material from working
around the shaft, causing excessive wear. The following is
the suggested procedure of maintenance for protection of
Drum Bearing Bracket Lubrication
There is 1 set of drum bearing brackets (Figure 28) that will
require lubrication. These brackets are intended to make
the drum rotate freely. Lubricate the grease fitting for each
drum bearing bracket
becomes difficult to position
grease.
the paddle shaft.
1. Keep drum head clean of material build up so the spring
adjusters are free to work.
2. As the seals naturally wear, material will seep from the
DRUM BEARING
drum head. Tighten the adjusting nuts equally until a
slight pressure is felt (Figure 26). The seals are now
tight. This procedure should be done periodically as the
seals leak.
Figure 28. Grease Fittings (Dumping Mechanism)
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
Failure
periodically will cause the dumping mechanism to stiffen,
making the mixing drum hard to dump.
every month or when the drum
using multi-purpose grade
GREASE FITTING
AND CAP
GREASE FITTING
BRACKET
20
AND CAP
Lubricating the
Grease Fittings
to lubricate the drum bearing grease fittings
Figure 26. Drum Seal Adjusting Nuts
Ball Socket and Clamp Face Maintenance
1. If the towing vechicle is equipped with a ball socket,
3. Once the pressure plate touches the drum, its time to
replace the graphite seals (Figure 27).
smear socket periodically with multi-purpose grease.
This will keep the ball socket well lubricated.
2. Periodically oil
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.
Figure 27. Replacing Drum Seals
pivot points
and
clamp face
surfaces
PAGE 30 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
EM-70 PLASTER/MORTAR 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
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.
Countershaft Bearing Lubrication
There is 1 set of countershaft bearings (Figure 29) that will
require lubrication. Lubricate the grease fitting for each
countershaft bearing
any grade lithium base grease.
pivot points
every 40 hours of operation
and
clamp face
surfaces
using
2. Fill the wheel hub (Figure 30) 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
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.
Main Gear and Drive Pinion Alignment
1.
Disconnect the spark plug wire
mixer is equipped with an electric motor
cord from AC power receptacle
sure the clutch engagement lever is
relieve V-belt tension.
2. The countershaft and drive pinion are mounted on a
slotted base. To align drive pinion with main gear, loosen
the pillow block mounting bolts and move them until
the necessary alignment has been made. Remember
gears must be paralleled aligned not skewed.
to 1/4 turn or to the
(gasoline engines). If
remove power
. In addition make
dis-engaged
to
3. Using your hand, slightly move (rock) the drive pulley
Figure 29. Grease Fittings (Countershaft)
Wheel Bearings
1. After every 3 months of operation, remove the hub dust
cap and inspect the wheel bearings (Figure 30). 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 (
heavier than 265 A.S.T.M. penetration (“No. 2.”)
never
use grease
back and forth to determine the amount of backlash.
Insert feeler gauge between gears to determine backlash
distance. Backlash should range between 0.007- 0.012
inches (Figure 31).
Figure 31. Drive Pinion and Main Gear (Backlash)
Figure 30. Wheel Hub and Bearings
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 31
EM-70 PLASTER/MORTAR MIXER — MAINTENANCE (MIXER)
Inspect Tooth Contact between Main Gear and Drive
Pinion
1. Coat 3 or 4 teeth at 3 different positions on the main
gear with yellow paint.
2. Rotate the drive pulley in both directions.
3. Inspect the tooth pattern.
4. If gear teeth are not contacting properly (Figure 32),
adjust pillow block to correct the problem.
Figure 32. Gear Teeth Alignment
Grease Fittings (Zerk) Maintenance (Electric Motor)
1. There are two grease (Figure 34) fittings at each end of
the electric motor that will require lubrication. Lubricate
these fittings
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.
Figure 34. Grease Fittings
Tires/Wheels/Lug Nuts
Tires and wheels are a very important and critical components of the trailer. When specifying or replacing the trailer
wheels it is important the wheels, tires, and axle are properly matched.
about
every 16 months.
Electric Motor
Gear Lubrication
The surface of the pinion and main gear (Figure 33) should
be very lightly greased.
Tires Wear/Inflation
Figure 33. Pinion and Bull Gear Lubrication
NOTE
Excess grease will accumulate contaminates and cause
premature wear.
Grease main and pinion gears
every
operation. IMPORTANT!
Avoid over-greasing.
250 hours of
Tire inflation pressure is the most important factor in tire life.
Pressure should be checked cold before operation. DO NOT
bleed air from tires when they are hot. Check inflation pressure weekly during use to insure the maximum tire life and
tread wear.
WARNINGWARNING
WARNING
WARNINGWARNING
DO NOT attempt to repair or modify a
wheel. DO NOT install an inter-tube to
correct a leak through the rim. If the
rim is cracked, the air pressure in the
inter-tube may cause pieces of the rim to explode (breakoff) with great force and can cause serious eye or bodily
injury.
WARNINGWARNING
WARNING
WARNINGWARNING
ALWAYS
removing or installing force fitted
parts. Failure to comply may result
in serious injury.
Damaged Wheels
Eyesight Hazard
wear safety glasses when
PAGE 32 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
EM-70 PLASTER/MORTAR MIXER — MAINTENANCE (MIXER)
Table 8 (Tire Wear Troubleshooting) will help pinpoint the
causes and solutions of tire wear problems.
3. After first road use, retorque all lug nuts in sequence.
Check all wheel lug nuts periodically.
TABLE 9.TIRE WEAR TROUBLESHOOTING
WEAR PATTERN SOLUTION
Center Wear
Edge Wear Under Inflation
Side Wear
Toe Wear
Cupping
Flat Spots
CAUSE
Over Inflation
Loss of chamber
or overloading.
Incorrect toe-in
Out-of balance
Wheel lockup &
tire skidding.
Adjust pressure to
particular load per
tire manufacturer.
Adjust pressure to
particular load per
tire manufacturer.
Make sure load does
not exceed axle rating.
Align wheels.
Align wheels.
Check bearing adjustment and balance tires.
Avoid sudden stops
when possible and
adjust brakes.
Lug Nut Torque Requirements
It is extremely important to apply and maintain proper wheel
mounting torque. Be sure to use only the fasteners matched
to the cone angle of the wheel. Proper procedure for attachment of the wheels is as follows:
1. Start all wheel lug nuts by hand.
2. Torque all lug nuts in sequence. See Figure 35. DO NOT
torque the wheel lug nuts all the way down. Tighten each
lug nut in 3 separate passes as defined by Table 9.
STNEMERIUQEREUQROTERIT.01ELBAT
eziSleehW
ssaPtsriF
SBL-TF
"2152-0204-5356-05
"3152-0204-5356-05
"4152-0206-05021-09
"5152-0206-05021-09
"6152-0206-05021-09
NOTE
NEVER!
to tighten wheel lug nuts.
use an pneumatic air gun
ssaPdnoceS
SBL-TF
ssaPdrihT
SBL-TF
Figure 35. Wheel Lug Nuts Tightening Sequence
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 33
EM-70 PLASTER/MORTAR MIXER — MAINTENANCE (MIXER)
Suspension
WARNINGWARNING
WARNING
The rigid type axle and associated hardware (Figure 35) should
be periodically inspected for signs of excessive wear, elongation of bolt holes, and loosening of fasteners. Replace all
damaged parts immediately.
Figure 36. Axle Support Components
Mixer Cleaning
1.
ALWAYS disconnect the spark plug wire
engines) before cleaning the inside of the drum. If mixer
is equipped with an electric motor
from AC power receptacle
clutch engagement lever is
2. Make sure the rear section of the safety grate is
connected to the mixing drum.
3. At the end of each day’s operation, place mixer drum
in an upright position and spray inside of tub
immediately with water to prevent lumps of dried mortar
or plaster from forming and contamination of future
batches, DO NOT allow a buildup of materials to form
on the blades or anywhere inside the drum.
remove power cord
. In addition make sure the
dis-engaged
(gasoline
.
7. When cleaning of the entire mixer is done, return mixing
Mixer Storage
For storage of the mixer for over 30 days, the following is
recommended:
z
z
WARNINGWARNING
When rotating the mixing drum from the dump position
to the upright position, keep hands clear of safety grate.
The possibility exists of hands or fingers being crushed
(Figure 38).
drum to an upright position.
Drain the fuel tank completely, or add STA-BIL to the
fuel.
Run the engine until the fuel is completely consumed.
Keep Hands
Clear of Drum!
Figure 38. Safety Grate (Crush Hazard)
4. Rotate mixer to dump position and remove debris.
5.
Thoroughly clean
and frame.
6.
NEVER!
motor (Figure 37).
pour or spray water over the engine or electric
Figure 37. No Spraying of Water
PAGE 34 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
the entire mixer, wheels, cabinet
z
z
z
z
Completely drain used oil from the engine crankcase
and fill with fresh clean oil, then follow the procedures
described in the engine manual for engine storage.
Clean the entire mixer and engine compartment.
Place the mixing drum in the down position (mouth facing
downward).
Cover the mixer and place it a clean dry area, that is
protected from harsh elements.
EM-70 PLASTER/MORTAR MIXER — TROUBLESHOOTING (ENGINE)
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a
breakdown, please take a remedial action following the diagnosis based on the
Troubleshooting (Tables 11, 12 and 13) information shown below and on the proceeding pages. If the problem cannot be
remedied, please leave the unit just as it is and consult or company's service department.
MOTPMYS MELBORPELBISSOP NOITULOS
Engine, Mixer
GNITOOHSELBUORTENIGNE.11ELBAT
and
Electric Motor
?tignihcaersi
?leuFoN leuFddA
?knatleufniretaW .knatleufecalperrohsulF
?deggolcretlifleuF retlifleufecalpeR
?roterubrackcutS .msinahcemtaolfkcehC
gnitratsrooP
?gulp
?liooN .deriuqersalioddA
?esool
?dersigulpkrapS .tinunoitingirotsinartkcehC.deluofsigulpkrapS
?gnitratsnopu
leuffieesotroterubractcepsnI
?etihw-eulbsigulpkrapS
krapsfopittatneserpkrapsoN
sknilbpmalmralaerusserpliO
?revonruttonlliwenignE .tniojlexayrassecenfidnanotsipdnarednilycecalpeR
stlobgnitcennocdaehrednilyC
enilleufkcehC
erastejroterubraC.gnikaelriadetcejni,noisserpmoctneiciffusnI
.)wolfrevo(deggolc
.nekorbrodekcarcdrocegatlovhgih,nekorbtinunoitingirotsinarT
.deluoffigulpkrapsecalpeR.nekorbhctiwspotS/tratS
."rosneslio"tiucricnwodtuhscitamotuAkcehC
.stlobgnitcennocdaehrednilycnethgiT
"noisserpmoc
"noisserpmoc"
on"tuptuorewoptneiciffusnI
?esoolsigulpkrapS .gulpkrapsecalpeR
?sgnirnotsipnroW .sgnirnotsipecalpeR
tuptuorewoptneiciffusnI
?daeh
?degamadteksagdaehrednilyC .teksagdaehrednilycecalpeR
?taesevlavfonoitcnuflaM .sevlavtaes-eR
renaelc-rianinoitcnuflaM
?deggolcretlifria,metsys
ecafretnimorfnignikaelriA
rednilycdnaroterubracneewteb
?metsysleufninoitcnuflaM
.retlifriaecalperronaelC
ecalpeR.daehrednilycdnaroterubracneewtebstlobnethgiT
.teksagdaehrednilyc
.retlifleufecalperronaelC
.roterubracecalperronaelC
.taolfroterubrackcehC
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 35
EM-70 PLASTER/MORTAR MIXER — TROUBLESHOOTING (ENGINE)
)DEUNITNOC(GNITOOHSELBUORTENIGNE.11ELBAT
MOTPMYS MELBORPELBISSOP NOITULOS
tuptuorewoptneiciffusnI
staehrevodna"noisserpmoc"
leufhcumotsnruB
ylsuoinitnocsiroloctsuahxE
"ETIHW"
ylsuoinitnocsiroloctsuahxE
"KCALB"
?stcudorp
?ytisocsiv
?sgnirnroW sgnirecalpeR
?nafgniloocninoitcnuflaM .nafgniloocecalperrokcehC
?deggolcretlifekat-niriA .retlifekat-niriaecalperronaelC
tsuahxefonoitalumuccarevO
?gulpkrapsgnorW .gulpkrapsepytdetseggusserutcafunamhtiwgulpkrapsecalpeR
gnorwsiliognitacirbuL
?deggolcrennaelcriA .renaelcriaecalperronaelC
ottesneebtonsahevlavekohC
?noitisoptcerroceht
nolaes,evitcefedroterubraC
?nekorbroterubrac
tnemtsujdaroterubracrooP
?hcirootsnurenigne"
.sevlavkcehcdnanaelC
.yrassecenfiecalper,relffumkcehC
.ytisocsivtcerrochtiwliognitacirbulecalpeR
.noitisoptcerrocehtotevlavekohctsujdA
.laesroroterubracecalpeR
.roterubractsujdA
PAGE 36 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
EM-70 PLASTER/MORTAR MIXER — TROUBLESHOOTING (MIXER/ELECTRIC MOTOR)
GNITOOHSELBUORTREXIM.21ELBAT
MOTPMYS MELBORPELBISSOP NOITULOS
?tleb-VevitcefedronroW .tleb-VecalpeR
.etatortonlliwsedalB
?dengila-simreveltnemtsujdA .yrassecenfitsujdA.reveltnemtsujdafonoitisopkcehC
murdmorfgnikaellairetaM
.sdne
)tlit(egrahcsidottluciffidmurD
?slaes
?stekcarb
tfahselddapevitcefedronroW
troppusmurdnrowroevitcefeD
.thgitootdetsujdasedalB .murdfosllawedishcuottsomlayehtlitnusedalbtsujdA
.slaesecalpeR
.ecalperrotekcarbotesaergylppA
GNITOOHSELBUORTROTOMCIRTCELE.31ELBAT
MOTPMYS MELBORPELBISSOP NOITULOS
?rotomotegatlovoN .ecruosrewopkcehC
?drocnoisnetxeevitcefeD .drocnoisnetxeecalpeR
.etatortonlliwsedalB
?hctiwsFFO/NOrotomevitcefeD .hctiwsecalpeR
?sgnidniwrotomevitcefeD .sgnidniwecalperrosgnidniwriapeR
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 37
EM-70 PLASTER/MORTAR MIXER — WIRING DIAGRAM (ELECTRIC MOTOR)
Figure 39. Electric Motor Wiring Diagram
PAGE 38 — EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04)
NOTE PAGE
EM-70 PLASTER/MORTAR MIXER — OPERATION MANUAL — REV. #1 (008/10/04) — PAGE 39
OPERATIONS MANUAL
HERE'S HOW TO GET HELP
PLEASE HAVE THE MODEL AND SERIAL
NUMBER
MULTIQUIP CORPORATE OFFICE
18910 Wilmington Ave. 800-421-1244
Carson, CA 90746
Email: mq@multiquip.com
Internet: www.multiquip.com
PARTS DEPARTMENT
800-427-1244
310-537-3700
MAYCO PARTS
800-306-2926
310-537-3700
SERVICE DEPARTMENT
800-421-1244
310-537-3700
TECHNICAL ASSISTANCE
800-478-1244
WARRANTY DEPARTMENT
800-421-1244,
310-537-3700,
ON-HAND
EXT.
279
EXT.
279
WHEN CALLING
FAX:
310-537-3927
FAX:
800-672-7877
FAX:
310-637-3284
FAX:
800-672-7877
FAX:
310-637-3284
FAX:
310-537-4259
FAX:
310-631-5032
FAX:
310-537-1173
Your Local Dealer is:
MULTIQUIP INC
18910 WILMINGTON AVE.
CARSON, CALIFORNIA 90746
800-421-1244 • 310-537-3700
FAX: 310-537-3927
E-mail:mq@multiquip.com
Internet:multiquip.com
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