THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
PROPOSITION 65 WARNING
Engineexhaustandsomeof
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:
Your risk from these exposures varies,
dependingonhowoftenyoudo this type
of work. To reduce your exposure to
these chemicals:work in aALWAYS
well ventilated area, and work with
approved safety equipment, suchas
dust masks that are specially designed
to filter out microscopic particles.
Grinding/cutting/drilling of masonry, concrete, metal and
other materials with silica in their composition may give
off dust or mists containing crystalline silica. Silica is a
basic component of sand, quartz, brick clay, granite and
numerous other minerals and rocks. Repeated and/or
substantial inhalation of airborne crystalline silica can
cause serious or fatal respiratory diseases, including
silicosis.In addition, California and some other
authorities have listed respirable crystalline silica as a
substance known to cause cancer. When cutting such
materials, always follow the respiratory precautions
mentioned above.
WARNING
Grinding/cutting/drilling of masonry, concrete, metal and
other materials can generate dust, mists and fumes
containing chemicals known to cause serious or fatal
injury or illness, such as respiratory disease, cancer,
birth defects or other reproductive harm. If you are
unfamiliar with the risks associated with the particular
process and/or material being cut or the composition of
the tool being used, review the material safety data
sheet and/or consult your employer, the material
manufacturer/supplier, governmental agencies such as
OSHA and NIOSH and other sources on hazardous
materials. California and some other authorities, for
instance, have published lists of substances known to
cause cancer, reproductive toxicity,or other harmful
effects.
Control dust, mist and fumes at the source where
possible. In this regard use good work practices and
follow the recommendations of the manufacturers or
suppliers, OSHA/NIOSH, and occupational and trade
associations.Water should be used for dust
suppression when wet cutting is feasible. When the
hazards from inhalation of dust, mists and fumes cannot
be eliminated, the operator and any bystanders should
always wear a respirator approved by NIOSH/MSHA for
the materials being used.
Do not operate or service the equipment before reading
the entire manual. Safety precautions should be followed
at all times when operating this equipment.
Failure to read and understand the safety
messages and operating instructions could
result in injury to yourself and others.
SAFETY MESSAGES
The four safety messages shown below will inform you
about potential hazards that could injure you or others. The
safety messages specifi cally address the level of exposure
to the operator and are preceded by one of four words:
DANGER, WARNING, CAUTION
SAFETY SYMBOLS
Potential hazards associated with the operation of this
equipment will be referenced with hazard symbols which
may appear throughout this manual in conjunction with
safety messages.
DANGER
Indicates a hazardous situation which, if not avoided,
WILL result in DEATH or SERIOUS INJURY.
WARNING
Indicates a hazardous situation which, if not avoided,
COULD result in DEATH or SERIOUS INJURY.
CAUTION
Indicates a hazardous situation which, if not avoided,
COULD result in MINOR or MODERATE INJURY.
or NOTICE.
SymbolSafety Hazard
Lethal exhaust gas hazards
Explosive fuel hazards
Burn hazards
Rotating parts hazards
NOTICE
Addresses practices not related to personal injury.
This equipment should only be operated by trained and
Whenever necessary, replace nameplate, operation and
Manufacturer does not assume responsibility for any
accident due to equipment modifi cations. Unauthorized
use accessories or attachments that are not
recommended by Multiquip for this equipment. Damage
keep
Also, know the phone numbers
fi re department.
This information will be invaluable in the case of an
SAFETY INFORMATION
CAUTION
NEVER operate this equipment without proper protective
clothing, shatterproof glasses, respiratory protection,
hearing protection, steel-toed boots and other protective
devices required by the job or city and state regulations.
Avoid wearing jewelry or loose fi tting clothes that may
snag on the controls or moving parts as this can cause
serious injury.
NEVER operate this equipment when not
feeling well due to fatigue, illness or when
under medication.
NEVER operate this equipment under the
infl uence of drugs or alcohol.
ALWAYS clear the work area of any debris, tools, etc.
that would constitute a hazard while the equipment is
in operation.
ALWAYS check the equipment for loosened threads or
bolts before starting.
DO NOT use the equipment for any purpose other than
its intended purposes or applications.
qualifi ed personnel 18 years of age and older.
safety decals when they become diffi cult read.
equipment modifi cation will void all warranties.
NEVER
to the equipment and/or injury to user may result.
ALWAYS know the location of the nearest
fi re extinguisher.
ALWAYS know the location of the nearest
fi rst aid kit.
ALWAYS know the location of the nearest phone or
Engine fuel exhaust gases contain poisonous carbon
monoxide. This gas is colorless and odorless, and can
The engine of this equipment requires an adequate
operate this equipment
place hands or fingers inside engine
operate the engine with heat shields or
while the engine is hot. Hot oil will gush out of the oil
tank and severely scald any persons in the general area
Make certain the operator knows how to and is capable
run engine without an air fi lter or with a dirty air
fi lter. Severe engine damage may occur. Service air fi lter
NEVER operate the equipment in an explosive
atmosphere or near combustible materials. An
explosion or fi re could result causing severe
bodily harm or even death.
DO NOT mix fl ammable or explosive substances.
NEVER place your hands inside the drum
while starting or operating this equipment.
NEVER disconnect any emergency
or safety devices. These devices are
intended for operator safety. Disconnection of these
devices can cause severe injury, bodily harm or even
death. Disconnection of any of these devices will void
all warranties.
Before operating mixer, ensure that safety grate is in
position and correctly fi tted.
NEVER lubricate components or attempt service on a
running machine.
NOTICE
DANGER
WARNING
CAUTION
DANGER
cause death if inhaled.
free fl ow of cooling air. NEVER
in any enclosed or narrow
area where free fl ow of the
air is restricted. If the air
fl ow is restricted it will cause
injury to people and property
and serious damage to the
equipment or engine.
WARNING
DO NOT
compartment when engine is running.
NEVER
guards removed.
Keep fi ngers, hands hair and clothing away
from all moving parts to prevent injury.
DO NOT remove the engine oil drain plug
ALWAYS keep the machine in proper running condition.
ALWAYS ensure mixer is on level ground before mixing.
Fix damage to machine and replace any broken parts
immediately.
DO NOT tip mixer onto drum mouth when the drum is
rotating.
Ensure the drum is rotating while fi lling and emptying
the drum.
ALWAYS store equipment properly when it is not being
used. Equipment should be stored in a clean, dry location
out of the reach of children and unauthorized personnel.
ALWAYS deploy stabilizer jack stands prior to use.
Decommissioning is a controlled process used to safely
retire a piece of equipment that is no longer serviceable.
If the equipment poses an unacceptable and unrepairable
safety risk due to wear or damage or is no longer cost
effective to maintain (beyond life-cycle reliability) and is to
be decommissioned (demolition and dismantlement),be
sure to follow rules below.
When the life cycle of this equipment is over, remove
battery if equipped and bring to appropriate facility for
lead reclamation. Use safety precautions when handling
When the life cycle of this equipment is over, it is
recommended that the mixer frame and all other metal
Metal recycling involves the collection of metal from
discarded products and its transformation into raw
Recyclers and manufacturers alike promote the process
of recycling metal. Using a metal recycling center
The gasoline engine used in this equipment has been
designed to reduce harmful levels of carbon monoxide
(CO), hydrocarbons (HC) and nitrogen oxides (NOx)
This engine has been certifi ed to meet US EPA Evaporative
Attempting to modify or make adjustments to the engine
emmission system by unauthorized personnel without
proper training could damage the equipment or create an
Additionally, modifying the fuel system may adversely affect
evaporative emissions, resulting in fi nes or other penalties.
The emission control label is an integral part of the emission
If a replacement emission label is needed, please contact
NEVER allow any person or animal to stand underneath
the equipment while lifting.
NOTICE
ALWAYS make sure forklift forks are inserted into pockets
(if applicable) as far as possible when lifting the mixer.
ALWAYS shutdown engine before transporting.
NEVER lift the equipment while the engine is running.
Tighten fuel tank cap securely and close fuel cock to
prevent fuel from spilling.
DO NOT lift machine to unnecessary heights.
ALWAYS tie down equipment during transport by
securing the equipment with rope.
SAFETY INFORMATION
batteries that contain sulfuric acid.
parts be sent to a recycling center.
materials to use in manufacturing a new product.
promotes energy cost savings.
EMISSIONS INFORMATION
NOTICE
NEVER tip the engine to extreme angles during lifting as
it may cause oil to gravitate into the cylinder head, making
the engine start diffi cult.
DECOMMISSIONING
NOTICE
DO NOT pour waste or oil directly onto the ground, down
a drain or into any water source.
Contact your country's Department of
Public Works or recycling agency in your
area and arrange for proper disposal of
any electrical components, waste or oil
associated with this equipment.
contained in gasoline exhaust emissions.
emissions requirements in the installed confi guration.
unsafe condition.
Emission Control Label
system and is strictly controlled by regulation(s).
The label must remain with the engine for its entire life.
The Multiquip PRO12 hydraulic mixer (with drum capacity
of 12.0 cu. ft./340 liters) is shipped completely assembled,
factory-tested, and ready for use.
This mixer is only intended for the mixing of plaster and
mortar. The mixer must be used for its intended purpose
and is not suitable for mixing flammable or explosive
substances. The mixer must not be used in an explosive
atmosphere. This mixer has a batch capacity between 3-1/2
and 4-1/2 bags.
POWER PLANTS
This hydraulic mixer is powered by either a 11.7 HP Honda
GX390RT2-QNB2 air-cooled, 4-stroke, gasoline engine
(Reference Table 2), or a 5 HP electric motor. Reference
Table 3 for more detailed information regarding the electric
motor.
HARDWARE
Check all hardware on the mixer before starting. Periodically
inspect all hardware. Loose hardware can contribute to
early component failure and poor performance. Keep all
mixer hardware components tight.
ENGINE MAINTENANCE
For basic engine maintenance, refer to the engine
maintenance section in this manual. For a more detailed
engine maintenance, refer to the Honda Engine Owner's
manual furnished with the engine.
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. Reference Table 3 for electric motor
specifications.
Always make sure the OFF/ON switch on the electric motor
is in the OFF position before applying power.
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
extension cord of adequate current carrying capacity as
referenced in Table 7. Remember cable distance affects
the current-voltage capacity of the extension cable.
Ensure that the extension cable is carefully laid out avoiding
wet areas, sharp edges and locations where vehicles
might run over it. Avoid allowing the extension cable to be
trapped underneath the mixer.
Unroll the extension cable fully or it will overheat and could
catch fire. Make sure that all extension cable connections
are dry and safe. Replace any defective or badly worn
extension cable immediately.
1. Engine Cover — Lift this cover to gain access to the
engine or electric motor.
2. Start/Stop Switch — This switch is located on the side
of the engine cover. When activated it will shut down
the engine (gasoline only).
3. Latch — Use this latch to secure the engine
compartment enclosure.
4. Drum Bearing — There is a sealed bearing on
each end of the mixing drum. Bearings are packed
and sealed at the factory and require no further
maintenance.
5. Mixing Paddles — This mixer uses plastic and rubber
mixing paddles for the mixing of plaster and mortar.
Always clean paddles after each use.
6. Bag Cutter — This feature allows mixing bags to be
opened easily, therefore allowing the contents of the
bag to fall directly into the mixing drum.
7. 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.
8. Pivot Point/Zerk Fitting — There is a zerk grease
fitting on each end of the mixing drum. These fittings
lubricate the dumping mechanism. Lubricate both
fittings at least twice a week.
9. Mixing Drum — Drum capacity is 12 cu. ft (340 liters).
Mixing materials such as mortar and plaster are to be
placed into this drum for mixing. Always clean drum
after each use.
10. Swivel Jack Stands — These jack stands swivel out
to support the mixer.
11. Forklift Pockets — When lifting of the mixer is
required, use these fork lift pockets to lift the mixer.
Remember to insert the forks of the forklift a minimum
of 24 inches into the lift pockets.
12. Adjustable Stabilizer Jack Stands — Use these jack
out small particles that are harmful to the hydraulic
system.
14. Charcoal Canister — A container filled with activated
charcoal that traps gasoline vapors emitted by the
fuel system.A container filled with activated charcoal
that traps gasoline vapors emitted by the fuel system
(gasoline only).
The engine (Figure 4) must be checked for proper
lubrication and filled with fuel prior to operation. Refer to the
engine manufacturer’s manual for instructions and 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.
DANGER
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.
2. Throttle Lever — Used to adjust engine RPM speed
(lever advanced forward SLOW, lever back toward
operator FAST).
3. Engine ON/OFF Switch — ON position permits engine
starting, OFF position stops engine operations.
4. Recoil Starter (pull rope) — Manual-starting method.
Pull the starter grip until resistance is felt, then pull
briskly and smoothly.
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.
NOTICE
Operating the engine without an air filter, with a
damaged air filter, or a filter in need of replacement
will allow dirt to enter the engine, causing rapid engine
wear.
WARNING
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.
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 an explosive
environment.
The electric motors (Figure 5) used on these mixers is
available in two types of configurations, 5 HP 1Ø @230
VAC or 5 HP 3Ø @230/460 VAC. Pay special attention to
the nameplate on the electric motor when supplying power
to the electric motor. Applying incorrect power to the motor
can severely damage the motor and may cause serious
bodily injury!
Always make certain that the correct voltage is being
supplied to the motor. The input voltage requirements can
be found on the electric motor's nameplate.
ELECTRIC MOTOR POWER CONNECTIONS
The electrical motors used on these mixers are equipped
with either a 3-prong (1Ø) or a 4-prong (3Ø) plug.
Reference Figure 5 for connection to a power source.
Reference Table 5. to determine the required NEMA mating
receptacle.
NOTICE
It is strongly recommended that all electrical wiring be
done by a licensed electrician. Pay special attention to
the nameplate on the electric motor. Make certain that
the voltage supplied to the electric motor matches the
required operating voltage printed on the nameplate.
1. Read safety instructions at the
beginning of manual.
2. Clean the mixer, removing dirt and
dust, particularly the engine cooling
air inlet, carburetor and air cleaner.
3. Check the air filter for dirt and dust. If air filter is dirty,
replace air filter with a new one as required.
4. Check carburetor for external dirt and dust. Clean with
dry compressed air.
5. Check fastening nuts and bolts for tightness.
ENGINE OIL CHECK
1. To check the engine oil level, place the mixer on secure
level ground with the engine stopped.
2. Remove the filler dipstick from the engine oil filler hole
(Figure 7) and wipe clean.
Figure 8. Engine Oil Dipstick (Oil Level)
Table 6. Oil Type
SeasonTemperatureOil Type
Summer25°C or HigherSAE 10W-30
Spring/Fall25°C~10°CSAE 10W-30/20
Winter0°C or LowerSAE 10W-10
DANGER
Motor fuels are highly flammable and can
be dangerous if mishandled. DO NOT
smoke while refueling. DO NOT attempt
to refuel the pump if the engine is hot!
or running.
FUEL CHECK
1. Remove the gasoline cap located on top of fuel tank.
2. Visually inspect to see if the fuel level is low. If fuel is
low, replenish with unleaded fuel
.
Figure 7. Engine Oil Dipstick (Removal)
3. Insert and remove the dipstick without screwing it into
the filler neck. Check the oil level shown on the dipstick.
4. If the oil level is low (See Figure 8), fill to the edge of
the oil filler hole with the recommended oil type
as listed in Table 6. Maximum oil capacity is 1.16
quarts(1.1 liters).
3. When refueling, be sure to use a strainer for filtration.
DO NOT top-off fuel. Wipe up any spilled fuel
immediately!
START/STOP SWITCH CHECK
This switch should be tested every time the engine is
started.
CAUTION
NEVER disable or disconnect the start/stop switch. It
is provided for operator safety. Injury may result if it is
disabled, disconnected or improperly maintained.
Check hydraulic oil sight gauge (Figure 9) to ensure that
hydraulic oil is at the midway level.
Figure 9. Hydraulic Oil Sight Gauge
HYDRAULIC HOSES
Check hydraulic hoses (Figure 3) to make sure they are
not worn, frayed or defective.
GREASE FITTINGS (BEARINGS)
Check the zerk grease fittings (Figure 10) at each end of
the mixing drum. These grease fittings lubricate the paddle
shaft bearings. Grease daily, preferably at the end of the
day. Grease until visible inside drum to assure cavity area
is free of contamination.
Figure 10. Grease Fittings (Bearings)
GREASE FITTING (DUMP CYLINDER)
Check the zerk grease fittings on the dump cylinder
(Figure 11). Give the fittings a shot of grease every week.
This grease fitting lubricates the hydraulic dumping
mechanism.
until the Safety, General Information and
Inspection sections of this manual have
been read and thoroughly understood.
This section is intended to assist the operator with the
initial start-up of the mixer. It is extremely important that
this section be read carefully before attempting to use the
mixer in the field.
STARTUP (GASOLINE ENGINE)
Figure 14. Engine Choke Lever (Closed)
STARTING THE ENGINE (GASOLINE)
1. Place the engine fuel valve lever (Figure 12) to the
“ON” position.
Figure 12. Engine Fuel Valve Lever (ON
Position)
2. Move the throttle lever (Figure 13) away from the
slow position, about 1/3 of the way toward the fast
position.
4. Place the choke lever (Figure 15) in the “OPEN”
position if starting a warm engine or the temperature
is warm.
Figure 15. Engine Choke Lever (Open)
5. Place the engine ON/OFF switch (Figure 16) in the
“ON” position.
Figure 13. Throttle Lever (1/3 Start Position)
3. Place the choke lever (Figure 14) in the “CLOSED”
position if starting a cold engine.
6. Pull the Start/Stop Switch, located on the engine cover,
outward to start the engine (Figure 17).
START/STOP
SWITCH
PULL OUT
TO START
Figure 17. Start/Stop Switch (Start Position)
STARTUP (GASOLINE ENGINE)
7. Turn the engine ignition key (Figure 18) to the START
position and hold it until the engine starts. When engine
starts, release the key, allowing it to return to the ON
position.
F
F
O
O
N
S
T
A
R
T
Figure 18. Engine Ignition Key
8. If the choke lever was moved to the "CLOSED" position
to start the engine gradually move it to the "OPEN"
position (Figure 19) as the engine warms up. If the
engine has not started repeat steps 1 through 6.
STOPPING THE ENGINE
Normal Shutdown
1. Move the throttle lever to the IDLE position (Figure 21)
and run the engine for three minutes at low speed.
Figure 21. Throttle Lever (Idle)
2. After the engine cools, push the Start/Stop switch
on the engine cover inward to the “OFF” position
(Figure 22).
START/STOP
SWITCH
Figure 19. Choke Lever (Open)
9. Before the mixer is placed in to operation, run the
engine for several minutes. Check for fuel leaks, and
noises that would associate with a lose component.
10. To begin mixing, place the throttle lever (Figure 20) in
the “RUN” position
Figure 20. Throttle Lever (Run)
.
PUSH IN
TO STOP
Figure 22. Start/Stop Switch (OFF Position)
3. Place the fuel shut-off lever (Figure 23) in the "OFF"
position.
Figure 23. Fuel Valve Lever (OFF)
Emergency Shutdown
1. Move the throttle lever quickly to the IDLE position, and
place the engine ON/OFF switch in the OFF position.
1. Using an adequate size extension cord (Table 7),
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.
Table 7. Cable Selection
Cord
Length
ft/m
10 (3.0)12 GA
25 (7.6)16 GA16 GA16 GA16 GA14 GA14 GA
50 (15.2)16 GA16 GA16 GA14 GA14 GA12 GA
100 (30.5) 16 GA16 GA 14 GA12 GA12 GA
150 (45.7) 16 GA14 GA 12 GA12 GA
200 (61.0) 14 GA14 GA 12 GA10 GA
0-22-55-77-1010-1212-1512-20
CAUTION: Equipment damage can result from low voltage
NOTICE
Extensions cords must be rated "Heavy Duty" or "Extra
Heavy Duty" and must be a continuous length.
Amperage/Load Rating
STOPPING THE MIXER (ELECTRIC MOTOR)
1. To stop the electric motor, press the red OFF/STOP
switch (Figure 25).
ON
OFF
START
STOP
TO
STOP
Figure 25. Electric Motor On/OFF Switch (Stop)
2. Disconnect the electric motor's extension cord from
its power source.
2. To start the electric motor, press the black ON/START
switch (Figure 24).
ON
OFF
START
STOP
PRESS
START
Figure 24. Electric Motor On/OFF Switch (Start)
3. Clean mixer as referenced in the maintenance section
of this manual.
1. On the hydraulic valve, push lever inward (Figure 26)
for clockwise mixing rotation of blades.
NEUTRAL
PUSH IN
TO MIX
PULL OUT
TO REVERSE
Figure 26. Hydraulic Paddle Lever
2. The paddle shaft inside the drum should be rotating
at this time.
3. Add a small amount water to the mixing drum.
OPERATION
Figure 28. Hydraulic Dump
2. Pull hydraulic dump lever inward to place drum back
in upright position.
4. 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.
DUMPING
1. Push hydraulic dump lever (Figure 27) outward to place
drum in dump position (Figure 28).
PUSH
TO DUMP
PULL
TO RETURN
WARNING
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.
1. 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.
Weekly
1. Remove the fuel filter cap and clean the inside of the
fuel tank.
2. Remove or clean the filter at the bottom of the tank.
3. Remove and clean the spark plug (Figure 29), then
adjust the spark gap to 0.028~0.031 inch
(0.6~0.7 mm). This unit has electronic ignition, which
requires no adjustments.
4. Replace engine oil with recommended type oil as listed
in Table 6. Engine oil capacity is 1.16 quarts (1.1 liters).
DO NOT over fill.
DANGER
DO NOT use gasoline as a cleaning
solvent, because that would create a risk
of fire or explosion.
ENGINE AIR CLEANER
1. Remove the air cleaner cover and foam filter element
as shown in Figure 31.
2. Tap the paper filter element (Figure 31) several
times on a hard surface to remove dirt, or
blow compressed air [not exceeding 30 psi (207 kPa,
2.1 kgf/cm
cleaner case side. NEVER brush off dirt. Brushing
will force dirt into the fibers. Replace the paper filter
element if it is excessively dirty.
2
)] through the filter element from the air
Figure 29. Spark Plug Gap
ENGINE OIL
1. Drain the engine oil when the oil is warm as shown
in Figure 30.
Figure 30. Engine Oil (Draining)
2. Remove the oil drain bolt and sealing washer and allow
the oil to drain into a suitable container.
3. Clean foam element in warm, soapy water or
non-flammable solvent. Rinse and dry thoroughly. Dip
the element in clean engine oil and completely squeeze
out the excess oil from the element before installing.
Figure 31. Engine Air Cleaner
3. Install drain bolt with sealing washer and tighten
securely.
Replace hydraulic oil filter (Figure 32) every 500 hours.
Hydraulic tank capacity is 12 gallons (45 liters). Refill with
Shell Tellius 46 hydraulic oil or equivalent.
Figure 32. Hydraulic Oil Filter
MIXER CLEANING
9. NEVER pour or spray water over the engine or electric
motor (Figure 33).
Figure 33. No Spraying of Water
10. When cleaning of the entire mixer is done, return mixing
drum to an upright position.
MIXER STORAGE
For storage of the mixer for over 30 days, the following is
recommended:
1. Drain the fuel tank completely, or add STA-BIL to the
fuel.
It is important that the drum interior is free of dried material.
Obstructions can cause the paddle blades to lock against
the drum resulting in sudden dump handle movement.
1. Stop the engine. Push the Start/Stop switch on the
engine cover inward to the “OFF” position.
2. Place the hydraulic paddle lever in "neutral" position
to disengage.
3. ALWAYS disconnect the spark plug wire or disconnect
electrical power source before cleaning the inside of
the drum.
4. Place "Do Not Operate" tag on mixer.
5. Make sure the rear section of safety grate is connected
to the mixing drum.
6. 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.
2. Run the engine until the fuel is completely consumed.
3. 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.
4. Clean the entire mixer and engine compartment.
5. Place the mixing drum in the down position (mouth
facing downward).
6. Cover the mixer and place it a clean dry area, that is
protected from harsh elements.
7. Rotate mixer to dump position and remove debris.
8. Thoroughly clean the entire mixer, cabinet, and frame.
Practically all breakdowns can be prevented by proper handling and maintenance inspections, but in the event of a
breakdown, please take remedial action following the diagnosis based on the troubleshooting tables. If the problem cannot
be remedied, please leave the unit as is and consult our company's service department.
Troubleshooting (Engine)
SymptomPossible ProblemSolution
Spark plug bridging?Check gap, insulation or replace spark plug.
Carbon deposit on spark plug?Clean or replace spark plug.
Diffi cult to start, fuel is available, but no spark at
spark plug.
Diffi cult to start, fuel is available, and spark is
present at the spark plug.
Diffi cult to start, fuel is available, spark is
present and compression is normal.
Diffi cult to start, fuel is available, spark is
present and compression is low.
No fuel present at carburetor.
Short circuit due to defi cient spark plug
insulation?
Improper spark plug gap?Set to proper gap.
Fuel reaching carburetor?Check fuel line.
Water in fuel tank?Flush or replace fuel tank.
Fuel fi lter clogged?Replace fuel fi lter.
Stuck carburetor?Check fl oat mechanism.
Spark plug is red?Check transistor ignition unit.
Spark plug is bluish white?
No spark present at tip of spark plug?
No oil?Add oil as required.
Oil pressure alarm lamp blinks upon starting? (if
applicable)
ON/OFF switch is shorted?Check switch wiring, replace switch.
Ignition coil defective?Replace ignition coil.
Improper spark gap, points dirty?Set correct spark gap and clean points.
Condenser insulation worn or short circuiting?Replace condenser.
Spark plug wire broken or short circuiting?Replace defective spark plug wiring.
Wrong fuel type?
Water or dust in fuel system?Flush fuel system.
Air cleaner dirty?Clean or replace air cleaner.
Choke open?Close choke.
Suction/exhaust valve stuck or protruded?Reseat valves.
Piston ring and/or cylinder worn?Replace piston rings and/or piston.
Cylinder head and/or spark plug not tightened
properly?
Head gasket and/or spark plug gasket damaged?Replace head and spark plug gaskets.
No fuel in fuel tank?Fill with correct type of fuel.
Fuel cock does not open properly?
Fuel fi lter/lines clogged?Replace fuel fi lter.
Fuel tank cap breather hole clogged?Clean or replace fuel tank cap.
Air in fuel line?Bleed fuel line.
Check spark plug insulation, replace if worn.
If insuffi cient compression, repair or replace
engine. If injected air leaking, correct leak. If
carburetor jets clogged, clean carburetor.
Check transistor ignition unit is broken, and
replace defective unit. Check if voltage cord
cracked or broken and replace. Check if spark
plug if fouled and replace.
the MQ 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 their respective owners and used with permission.
This manual
The information and specifi cations included in this publication were in effect at the time of approval for printing. Illustrations, descriptions, references and technical data contained in
this manual are for guidance only and may not be considered as binding. Multiquip Inc. reserves the right to discontinue or change specifi cations, design or the information published
in this publication at any time without notice and without incurring any obligations.
PLEASE HAVE THE MODEL AND SERIAL
NUMBER ON-HAND WHEN CALLING
UNITED STATES
Multiquip Corporate Offi ce MQ Parts Department
18910 Wilmington Ave.
Carson, CA 90746
Contact : mq@multiquip.com