Multiquip Carrying Case pro12 User Manual

OperatiOn Manual  
SERIES  
MODEL PRO12  
HYDRAULIC PLASTER/MORTAR MIXER  
(HONDA GX390RT2-QNB2 GASOLINE ENGINE)  
Revision #0 (05/06/13)  
To find the latest revision of this  
publication, visit our website at:  
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.  
SILICOSIS/RESPIRATORY wARNINGS  
WARNING WARNING  
SILICOSIS WARNING  
RESPIRATORY HAZARDS  
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.  
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.  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 3  
TABLE Of CONTENTS  
PRO12 Hydraulic Mixer  
Proposition 65 Warning ........................................... 2  
Silicosis/Respiratory Warnings................................ 3  
Table Of Contents.................................................... 4  
Safety Information ................................................ 5-8  
Specifications .......................................................... 9  
Dimensions............................................................ 10  
General Information............................................... 11  
Mixer Components ........................................... 12-13  
Hydraulic Components ..................................... 14-15  
Basic Engine.......................................................... 16  
Paddle Blade Adjustment ...................................... 17  
Inspection ......................................................... 18-19  
Startup.............................................................. 20-21  
Operation............................................................... 22  
Maintenance..................................................... 23-25  
Troubleshooting ................................................ 26-28  
Hydraulic System Locator...................................... 30  
Hydraulic System Diagram.................................... 31  
NOTICE  
Specifications and part numbers are subject to change  
without notice.  
page 4 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
SAfETY INfORMATION  
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.  
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.  
Symbol  
Safety Hazard  
saFety messages  
Lethal exhaust gas hazards  
The four 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 four words:  
danger,warning, caution or notice.  
Explosive fuel hazards  
Burn hazards  
saFety symBols  
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.  
Rotating parts hazards  
caution  
Indicates a hazardous situation which, if not avoided,  
COuLD result in minor or moderate inJury.  
NOTICE  
Addresses practices not related to personal injury.  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 5  
SAfETY INfORMATION  
general saFety  
caution  
NOTICE  
This equipment should only be operated by trained and  
qualified personnel 18 years of age and older.  
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.  
Whenever necessary, replace nameplate, operation and  
safety decals when they become difficult read.  
Manufacturer does not assume responsibility for any  
accident due to equipment modifications. Unauthorized  
equipment modification will void all warranties.  
never use accessories or attachments that are not  
recommended by Multiquip for this equipment. Damage  
to the equipment and/or injury to user may result.  
Avoid wearing jewelry or loose fitting clothes that may  
snag on the controls or moving parts as this can cause  
serious injury.  
always know the location of the nearest  
never operate this equipment when not  
feeling well due to fatigue, illness or when  
under medication.  
re extinguisher.  
always know the location of the nearest  
rst aid kit.  
never operate this equipment under the  
influence of drugs or alcohol.  
alwaysknow the location of the nearest phone or keep  
a phone on the job site. Also, know the phone numbers  
of the nearest ambulance,doctor and re department.  
This information will be invaluable in the case of an  
emergency.  
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.  
page 6 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
SAfETY INfORMATION  
engine saFety  
mixer saFety  
danger  
danger  
Engine fuel exhaust gases contain poisonous carbon  
monoxide. This gas is colorless and odorless, and can  
cause death if inhaled.  
neveroperate the equipment in an explosive  
atmosphere or near combustible materials.An  
explosion or fire could result causing severe  
bodily harm or even death.  
The engine of this equipment requires an adequate  
free flow of cooling air. never operate this equipment  
in any enclosed or narrow  
do not mix flammable or explosive substances.  
warning  
area where free flow of the  
air is restricted. If the air  
flow is restricted it will cause  
injury to people and property  
and serious damage to the  
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.  
equipment or engine.  
warning  
do not place hands or fingers inside engine  
compartment when engine is running.  
Before operating mixer, ensure that safety grate is in  
position and correctly fitted.  
never operate the engine with heat shields or  
guards removed.  
caution  
Keep fingers, hands hair and clothing away  
from all moving parts to prevent injury.  
never lubricate components or attempt service on a  
running machine.  
do not remove the engine oil drain plug  
while the engine is hot. Hot oil will gush out of the oil  
tank and severely scald any persons in the general area  
of the mixer.  
NOTICE  
always keep the machine in proper running condition.  
always ensure mixer is on level ground before mixing.  
caution  
Fix damage to machine and replace any broken parts  
immediately.  
never touch the hot exhaust manifold,  
muffler or cylinder.Allow these parts to cool  
before servicing equipment.  
do not tip mixer onto drum mouth when the drum is  
rotating.  
Make certain the operator knows how to and is capable  
of turning the engine OFF in case of an emergency.  
Ensure the drum is rotating while filling and emptying  
the drum.  
NOTICE  
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.  
never run engine without an air filter or with a dirty air  
filter.Severe engine damage may occur.Service air filter  
frequently to prevent engine malfunction.  
never tamper with the factory settings  
of the engine or engine governor. Damage  
to the engine or equipment can result  
if operating in speed ranges above the  
maximum allowable.  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 7  
SAfETY INfORMATION  
Fuel saFety  
danger  
transporting saFety  
caution  
do not add fuel to equipment if it is placed inside truck  
bed with plastic liner. Possibility exists of explosion or  
fire due to static electricity.  
never allow any person or animal to stand underneath  
the equipment while lifting.  
NOTICE  
FUEL  
alwaysmake 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.  
FUEL  
do not lift machine to unnecessary heights.  
always tie down equipment during transport by  
securing the equipment with rope.  
never tip the engine to extreme angles during lifting as  
it may cause oil to gravitate into the cylinder head, making  
the engine start difficult.  
do notstart the engine near spilled fuel or combustible  
fluids. Fuel is extremely flammable and its vapors can  
cause an explosion if ignited.  
environmental saFety  
always refuel in a well-ventilated area, away from  
sparks and open flames.  
NOTICE  
Dispose of hazardous waste properly.  
Examples of potentially hazardous waste  
are used motor oil, fuel and fuel filters.  
always use extreme caution when working with  
flammable liquids.  
do not fill the fuel tank while the engine is running  
or hot.  
do not use food or plastic containers to dispose of  
hazardous waste.  
do not overfill tank, since spilled fuel could ignite if it  
comes into contact with hot engine parts or sparks from  
the ignition system.  
do not pour waste, oil or fuel directly onto the ground,  
down a drain or into any water source.  
Store fuel in appropriate containers, in well-ventilated  
areas and away from sparks and flames.  
never use fuel as a cleaning agent.  
do not smoke around or near the  
equipment. Fire or explosion could result  
from fuel vapors or if fuel is spilled on a  
hot engine.  
page 8 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
SPECIfICATIONS  
table 1. Mixer Specifications  
12.0 cu. ft (340 liters)  
Capacity  
Bag Capacity  
3 to 4 bags  
1580 lbs. (716.68 kg.)  
1 in. (25.4 mm)  
Operating Weight  
Maximum Aggregate Size  
Adjustable Drum Discharge Height  
Drive System  
Up to 42.5 in. (1079.5 mm.)  
Hydraulic  
Dump Action  
Hydraulic  
table 2. Engine Specifications  
honda gx390rt2-QnB2  
Air-cooled 4 stroke, Horizontal Shaft, Gasoline Engine  
Model  
Type  
3.46 in. X 2.51 in.  
(88 mm x 64 mm)  
Bore X Stroke  
Displacement  
23.7 cu. in. (389 cc)  
11.7 H.P./3600 R.P.M.  
9.0H.P./3600 R.P.M.  
Max Output  
Continuous Output  
Fuel Tank Capacity  
Fuel  
Approx. 1.7 U.S. Gallons (6.5 Liters)  
Unleaded Gasoline  
Lube Oil Capacity  
Speed Control Method  
Starting Method  
1.16 qt. (1.1 liter)  
Centrifugal Fly-weight Type  
Electric Start  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 9  
DIMENSIONS  
C
A
B
Figure 1. Mixer Dimensions  
table 3. Mixer Dimensions  
Reference Designator  
dimension in. (mm.)  
73.5 (1917.7)  
35.0 (889)  
A (Length)  
B (Width)  
C (Height)  
45.0 (1143)  
page 10 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
GENERAL INfORMATION  
application  
hardware  
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.  
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.  
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.  
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.  
power plants  
This hydraulic mixer is powered by a 11.7 HP Honda  
GX390RT2-QNB2 air-cooled, 4-stroke, gasoline engine.  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 11  
MIXER COMPONENTS  
3
6
1
2
5
8
4
13  
12  
9
11  
14  
10  
Figure 2. Mixer Components  
page 12 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
MIXER COMPONENTS  
1. Engine Cover — Lift this cover to gain access to the  
engine or electric motor.  
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.  
2. start/stop switch — This switch is located on the  
side of the engine cover. When activated it will shut  
down the engine.  
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.  
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.  
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.  
5. Mixing Paddles This mixer uses plastic and rubber  
mixing paddles for the mixing of plaster and mortar.  
Always clean paddles after each use.  
12. adjustable stabilizer Jackstands — Use these jack  
stands to adjust the mixer to the desired height.  
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.  
13. Hydraulic Oil Filter — 10 micron hydraulic filter.Filters  
out small particles that are harmful to the hydraulic  
system.  
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.  
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.  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 13  
HYDRAULIC COMPONENTS  
6
5
8
1
3
7
2
4
2
Figure 3. Hydraulic Components  
page 14 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
HYDRAULIC COMPONENTS  
1. Hydraulic Motor — Bi-directional hydraulic motor that  
is used in conjunction with the directional control valve  
to operate the hydraulic dump cylinder and paddle  
shaft.  
5. Hydraulic Dump Lever — This lever is only provided  
on mixers with hydraulic dump capability. Pull lever  
outward to activate dump cylinder.  
6. hydraulic paddle Blade lever — 3-position lever.  
Push inward for clockwise mixing rotation of blades.  
Place in center position for no rotation (neutral/off).  
2. Hydraulic Dump Cylinder — When activated, this  
cylinder will cause the mixing drum to rotate to the  
dump position.This cylinder is provided on mixers with  
hydraulic dump capability.  
7. Pump — Supplies hydraulic fluid to the hydraulic  
control valve.  
3. Hydraulic Oil Sight Gauge — This gauge indicates  
the level and temperature of the hydraulic oil. For  
normal operation, oil level should be visible at the  
midpoint on the sightglass.  
8. Hydraulic Oil Filter — 10 micron hydraulic filter.Filters  
out small particles that are harmful to the hydraulic  
system.  
4. hydraulicvalve — Directional hydraulic control valve.  
Controls the direction of hydraulic fluid supplied to the  
dump cylinder and paddle shaft.  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 15  
BASIC ENGINE  
2. throttle lever — Used to adjust engine RPM speed  
(lever advanced forward slow, lever back toward  
operator Fast).  
1
10  
9
3. engine on/oFFswitch onposition permits engine  
starting, OFF position stops engine operations.  
2
4. recoil starter (pull rope)— Manual-starting method.  
Pull the starter grip until resistance is felt, then pull  
briskly and smoothly.  
3
8
5. Fuel valve lever open to let fuel flow, CLOSE to  
stop the flow of fuel.  
7
6. Choke Lever — Used in the starting of a cold engine,  
or in cold weather conditions. The choke enriches the  
fuel mixture.  
6
5
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.  
4
Figure 4. Engine Components  
NOTICE  
initial servicing  
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.  
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.  
warning  
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.  
Engine components can generate extreme  
heat. To prevent burns, do not touch  
these areas while the engine is running or  
immediately after operating.neveroperate  
the engine with the muffler removed.  
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.  
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. Fueltank — Holds unleaded gasoline. For additional  
information refer to engine owner's manual.  
page 16 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
PADDLE BLADE ADjUSTMENT  
STEEL DRUM  
CAST PADDLE  
CENTER TOW END  
CAST PADDLE  
DRUM END  
ENGINE END  
CAST PADDLE  
PADDLE BLADE IS TOO  
TIGHT AGAINST DRUM  
SIDE WALLS.  
DRUM SIDE  
CENTER ENGINE  
END CAST PADDLE  
INCORRECT  
INCORRECT  
CORRECT  
INCORRECT  
CORRECT  
SIDE PADDLE BLADE  
PADDLE BLADE IS TOO  
TIGHT AGAINST DRUM  
SIDE WALLS.  
ROTATION  
DRUM END AND SIDE WALLS  
Figure 5. Paddle Blade Adjustment  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 17  
INSPECTION  
BeFore starting  
table 4. oiltype  
Season  
Summer  
Spring/Fall  
Winter  
temperature  
25°C or Higher  
25°C~10°C  
oiltype  
SAE 10W-30  
SAE 10W-30/20  
SAE 10W-10  
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.  
0°C or Lower  
3. Check the air filter for dirt and dust. If air filter is dirty,  
replace air filter with a new one as required.  
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.  
4. Check carburetor for external dirt and dust. Clean with  
dry compressed air.  
5. Check fastening nuts and bolts for tightness.  
engine oil check  
Fuel check  
1. To check the engine oil level, place the mixer on secure  
level ground with the engine stopped.  
1. Remove the gasoline cap located on top of fuel tank.  
2. Remove the filler dipstick from the engine oil filler hole  
(Figure 6) and wipe clean.  
2. Visually inspect to see if the 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  
immediately!  
start/stop switch check  
This switch should be tested every time the engine is  
started.  
Figure 6. Engine Oil Dipstick (Removal)  
caution  
3. Insert and remove the dipstick without screwing it into  
the filler neck.Check the oil level shown on the dipstick.  
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.  
4. If the oil level is low (See Figure 7), fill to the edge of  
the oil filler hole with the recommended oil type  
(Table 4). Maximum oil capacity is 1.16 quarts  
(1.1 liters).  
HyDRAuLiC OiL  
Check hydraulic oil sight gauge (Figure 8) to ensure that  
hydraulic oil is at the midway level.  
Figure 7. Engine Oil Dipstick (Oil Level)  
Figure 8. Hydraulic Oil Sight Gauge  
page 18 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
INSPECTION  
grease Fitting (dump cylinder)  
HyDRAuLiC HOSES  
Check the zerk grease fittings on the dump cylinder  
(Figure 10). This grease fitting lubricates the hydraulic  
dumping mechanism.  
Check hydraulic hoses (Figure 3) to make sure they are  
not worn, frayed or defective.  
grease Fittings (Bearings)  
Check the zerk grease fittings (Figure 9) at each end of  
the mixing drum.These grease fittings lubricate the paddle  
shaft bearings.  
GREASE FITTING  
GREASE FITTING CAP  
DUMP CYLINDER  
BEARING  
GREASE  
FITTING  
Figure 9. Grease Fittings (Bearings)  
GREASE FITTING CAP  
GREASE FITTING  
Figure 10. Grease Fittings (Dump Cylinder)  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 19  
STARTUP  
caution  
do not attempt to operate the mixer  
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.  
Figure 13. Engine Choke Lever (Closed)  
4. Place the choke lever (Figure 14) in the “open”  
position if starting a warm engine or the temperature  
is warm.  
startingthe engine (honda engine)  
1. Place the engine fuel valve lever (Figure 11) to the  
on” position.  
Figure 14. Engine Choke Lever (Open)  
5. Place the engine ON/OFF switch (Figure 15) in the  
on” pos
Figure 11. Engine Fuel Valve Lever (ON  
Position)  
2. Move the throttle lever (Figure 12) away from the  
slow position, about 1/3 of the way toward the fast  
position.  
Figure 15. Engine ON/OFF Switch (ON Position)  
6. Pull the Start/Stop Switch, located on the engine cover,  
outward to start the engine (Figure 16).  
START/STOP  
SWITCH  
PULL OUT  
TO START  
Figure 12. Throttle Lever (1/3 Start Position)  
3. Place the choke lever (Figure 13) in the “CLOSED”  
position if starting a cold engine.  
Figure 16. Start/Stop Switch (Start Position)  
page 20 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
STARTUP  
7. Turn the engine ignition key (Figure 17) 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.  
stoppingthe engine  
normal shutdown  
1. Move the throttle lever to the IDLE position (Figure 20)  
and run the engine for three minutes at low speed.  
Figure 17. 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 18) as the engine warms up. If the  
engine has not started repeat steps 1 through 6.  
Figure 20. Throttle Lever (Idle)  
2. After the engine cools, push the Start/Stop switch  
on the engine cover inward to the “OFF” position  
(Figure 21).  
START/STOP  
SWITCH  
PUSH IN  
TO STOP  
Figure 18. Choke Lever (Open)  
Figure 21. Start/Stop Switch (OFF Position)  
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.  
3. Place the fuel shut-off lever (Figure 22) in the "OFF"  
position.  
10. To begin mixing, place the throttle lever (Figure 19) in  
the “run” position.  
Figure 22. 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.  
Figure 19. Throttle Lever (Run)  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 21  
OPERATION  
mixing  
1. On the hydraulic valve, push lever inward (Figure 23)  
for clockwise mixing rotation of blades.  
NEUTRAL  
PUSH IN  
TO MIX  
PULL OUT  
TO REVERSE  
Figure 23. Hydraulic Paddle Lever  
Figure 25. Hydraulic Dump  
2. The paddle shaft inside the drum should be rotating  
at this time.  
2. Pull hydraulic dump lever inward to place drum back  
in upright position.  
3. Add a small amount water to the mixing drum.  
warning  
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.  
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.  
dumping  
1. Push hydraulic dump lever (Figure 24) outward to place  
drum in dump position (Figure 25).  
PUSH  
TO DUMP  
PULL  
TO RETURN  
Figure 24. Hydraulic Dump Lever  
page 22 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
MAINTENANCE  
Perform engine maintenance procedures as scheduled in Table 5.  
table 5. Engine Maintenance Schedule  
First every 3  
Before Month or Months or Months or year or  
every 6  
Every  
Every 2  
years or  
200 hrs  
description (3)  
Operation  
10 hrs  
25 hrs  
50 hrs  
100 hrs  
CHECK  
CHANGE  
CHECK  
X
X
Engine Oil  
Air Cleaner  
X
CHANGE  
X (1)  
All Nuts and  
Bolts  
Re-tighten If  
Necessary  
X
CHECK-CLEAN  
REPLACE  
CHECK  
X
X
Spark Plug  
X
Cooling Fins  
Spark Arrester  
Fuel Tank  
CLEAN  
X
X
CLEAN  
Fuel Filter  
CHECK  
X
Idle Speed  
CHECK-ADJUST  
X (2)  
Valve Clearance CHECK-ADJUST  
Fuel lines CHECK  
X (2)  
Every 2 years (replace if necessary) (2)  
1. Service more frequently when used in dusty areas.  
2. These items should be serviced by your service dealer, unless you have the proper tools and are mechanically proficient.  
Refer to the honda Shop Manual for service procedures.  
3. For commercial use, log hours of operation to determine proper maintenance intervals.  
NOTICE  
Refer to engine manufacturer's manual for specific  
servicing instructions.  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 23  
MAINTENANCE  
Perform the engine maintenance indicated below:  
4. Replace engine oil with recommended type oil as listed  
inTable 4.Engine oil capacity is 1.16 quarts (1.1 liters).  
do not over fill.  
Daily  
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.  
danger  
do not use gasoline as a cleaning  
solvent, because that would create a risk  
of fire or explosion.  
weekly  
1. Remove the fuel filter cap and clean the inside of the  
fuel tank.  
engine air cleaner  
2. Remove or clean the filter at the bottom of the tank.  
1. Remove the air cleaner cover and foam filter element  
as shown in Figure 28.  
3. Remove and clean the spark plug (Figure 26), 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.  
2. Tap the paper filter element (Figure 28) several  
times on a hard surface to remove dirt, or  
blow compressed air [not exceeding 30 psi (207 kPa,  
2.1 kgf/cm2)] through the filter element from the air  
cleaner case side. NEVER 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  
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 26. Spark Plug Gap  
engine oil  
1. Drain the engine oil when the oil is warm as shown  
in Figure 27.  
Figure 27. Engine Oil (Draining)  
2. Remove the oil drain bolt and sealing washer and allow  
the oil to drain into a suitable container.  
Figure 28. Engine Air Cleaner  
3. Install drain bolt with sealing washer and tighten  
securely.  
page 24 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
MAINTENANCE  
9. neverpour or spray water over the engine (Figure 30).  
hydraulic oil Filter  
Replace hydraulic oil filter (Figure 29) every 500 hours.  
Hydraulic tank capacity is 12 gallons (45 liters). Refill with  
any of the following hydraulic oil types. Shell Tellius 68,  
Mobil DFE26 or Texaco Rand HDC.  
Figure 30. 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:  
Figure 29. Hydraulic Oil Filter  
1. Drain the fuel tank completely, or add STA-BIL to the  
fuel.  
mixer cleaning  
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.  
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.  
1. Stop the engine. Push the Start/Stop switch on the  
engine cover inward to the “OFF” position.  
4. Clean the entire mixer and engine compartment.  
2. Place the hydraulic paddle lever in "neutral" position  
to disengage.  
5. Place the mixing drum in the down position (mouth  
facing downward).  
3. always disconnect the spark plug wire before  
cleaning the inside of the drum.  
6. Cover the mixer and place it a clean dry area, that is  
protected from harsh elements.  
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.  
7. Rotate mixer to dump position and remove debris.  
8. Thoroughly clean the entire mixer, cabinet, and frame.  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 25  
TROUBLESHOOTING  
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)  
Symptom  
Possible Problem  
Spark plug bridging?  
Solution  
Check gap, insulation or replace spark plug.  
Clean or replace spark plug.  
Carbon deposit on spark plug?  
Short circuit due to deficient spark plug  
insulation?  
Check spark plug insulation, replace if worn.  
Improper spark plug gap?  
Fuel reaching carburetor?  
Water in fuel tank?  
Set to proper gap.  
Check fuel line.  
Flush or replace fuel tank.  
Replace fuel filter.  
Fuel filter clogged?  
Stuck carburetor?  
Check float mechanism.  
Check transistor ignition unit.  
Difficult to start, fuel is available, but no spark at  
spark plug.  
Spark plug is red?  
If insufficient compression, repair or replace  
engine. If injected air leaking, correct leak. If  
carburetor jets clogged, clean carburetor.  
Spark plug is bluish white?  
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.  
No spark present at tip of spark plug?  
No oil?  
Add oil as required.  
Oil pressure alarm lamp blinks upon starting? (if Check automatic shutdown circuit, "oil sensor".  
applicable)  
(if applicable)  
ON/OFF switch is shorted?  
Check switch wiring, replace switch.  
Replace ignition coil.  
Ignition coil defective?  
Difficult to start, fuel is available, and spark is  
present at the spark plug.  
Improper spark gap, points dirty?  
Condenser insulation worn or short circuiting?  
Spark plug wire broken or short circuiting?  
Set correct spark gap and clean points.  
Replace condenser.  
Replace defective spark plug wiring.  
Flush fuel system, replace with correct type of  
fuel.  
Wrong fuel type?  
Difficult to start, fuel is available, spark is  
present and compression is normal.  
Water or dust in fuel system?  
Air cleaner dirty?  
Flush fuel system.  
Clean or replace air cleaner.  
Close choke.  
Choke open?  
Suction/exhaust valve stuck or protruded?  
Piston ring and/or cylinder worn?  
Reseat valves.  
Replace piston rings and/or piston.  
Difficult to start, fuel is available, spark is  
present and compression is low.  
Cylinder head and/or spark plug not tightened  
properly?  
Torque cylinder head bolts and spark plug.  
Head gasket and/or spark plug gasket damaged?  
No fuel in fuel tank?  
Replace head and spark plug gaskets.  
Fill with correct type of fuel.  
Apply lubricant to loosen fuel cock lever,  
replace if necessary.  
Fuel cock does not open properly?  
No fuel present at carburetor.  
Fuel filter/lines clogged?  
Fuel tank cap breather hole clogged?  
Air in fuel line?  
Replace fuel filter.  
Clean or replace fuel tank cap.  
Bleed fuel line.  
page 26 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
TROUBLESHOOTING  
troubleshooting (engine) - continued  
Symptom  
Possible Problem  
Solution  
Clean or replace air cleaner.  
Check float adjustment, rebuild carburetor.  
Clean or replace spark plug.  
Set to proper gap.  
Air cleaner dirty?  
Improper level in carburetor?  
Defective spark plug?  
Weak in power, compression is proper and  
does not misfire.  
Improper spark plug?  
Flush fuel system and replace with correct  
type of fuel.  
Water in fuel system?  
Weak in power, compression is proper but  
misfires.  
Dirty spark plug?  
Clean or replace spark plug.  
Replace ignition coil.  
Ignition coil defective?  
Spark plug heat value incorrect?  
Wrong type of fuel?  
Replace with correct type of spark plug.  
Replace with correct type of fuel.  
Clean cooling fins.  
Cooling fins dirty?  
Engine overheats.  
Clear intake of dirt and debris. Replace air  
cleaner elements as necessary.  
Intake air restricted?  
Oil level too low or too high?  
Governor adjusted incorrectly?  
Governor spring defective?  
Fuel flow restricted?  
Adjust oil to proper level.  
Adjust governor.  
Rotational speed fluctuates.  
Replace governor spring.  
Check entire fuel system for leaks or clogs.  
Recoil mechanism clogged with dust and dirt? Clean recoil assembly with soap and water.  
Recoil starter malfunctions. (if applicable)  
Spiral spring loose?  
Replace spiral spring.  
Ensure tight, clean connections on battery  
and starter.  
Loose, damaged wiring?  
Starter malfunctions.  
Battery insufficiently charged?  
Recharge or replace battery.  
Replace starter.  
Starter damaged or internally shorted?  
Check and clean valves. Check muffler and  
replace if necessary.  
Over-accumulation of exhaust products?  
Wrong spark plug?  
Burns too much fuel.  
Replace spark plug with manufacturer's  
suggested type.  
Lubricating oil is wrong viscosity?  
Worn rings?  
Replace lubricating oil with correct viscosity.  
Replace rings.  
Exhaust color is continuously "white".  
Air cleaner clogged?  
Clean or replace air cleaner.  
Adjust choke valve to correct position.  
Choke valve set to incorrect position?  
Carburetor defective, seal on carburetor  
broken?  
Exhaust color is continuously "black".  
Replace carburetor or seal.  
Poor carburetor adjustment, engine runs too  
rich?  
Adjust carburetor.  
ON/OFF device not activated ON?  
Battery disconnected or discharged?  
Ignition switch/wiring defective?  
Turn on ON/OFF device.  
Check cable connections. Charge or replace  
battery  
Will not start, no power with key "ON". (if  
applicable)  
Replace ignition switch. Check wiring.  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 27  
TROUBLESHOOTING  
troubleshooting (mixer)  
Possible Problem  
Symptom  
Solution  
Worn or defective V-belt?  
Replace V-belt.  
Check position of adjustment lever.  
Adjust if necessary.  
Adjustment lever mis-aligned?  
Material load too heavy, exceeding  
mixer capability?  
Reduce amount of material being  
mixed.  
Blades will not rotate.  
Object stuck inside mixing drum,  
jamming paddle rotation?  
Stop engine. Empty out drum  
contents. Remove obstruction.  
Improper engine speed?  
Check and adjust engine speed.  
Material leaking from drum ends.  
Drum difficult to discharge (tilt).  
Worn or defective paddle shaft seals? Replace seals.  
Defective or worn drum support  
brackets?  
Apply grease to bracket or replace.  
Adjust blades until they almost touch  
side walls of drum.  
Blades adjusted too tight.  
page 28 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
NOTES  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 29  
HYDRAULIC SYSTEM LOCATOR  
4
5
12  
1
13  
2
3
8
9
6
7
11  
10  
page 30 — pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13)  
HYDRAULIC SYSTEM DIAGRAM  
HYDRAULIC SYSTEM DIAGRAM  
HYDRAULIC  
DUMP  
FORWARD/REVERSE  
8
9
12  
GEAR  
PUMP  
ENGINE  
RELIEF  
VALVE  
10  
5
1750 PSI  
RETURN  
FILTER  
SUCTION  
STRAINER  
2
BYPASS  
25 PSI  
2
1
13  
3
HYD  
MOTOR  
TANK  
TANK  
4
RELIEF  
VALVE  
CYLINDER  
11  
1
1
1750 PSI  
6
7
CYLINDER  
pro12 hydraulic mixer • operation manual — rev. #0 (05/06/13) — page 31  
OperatiOn Manual  
HERE’S HOW TO GET HELP  
PLEASE HAVE THE MODEL AND SERIAL  
NUMBER ON-HAND WHEN CALLING  
United StateS  
Multiquip Corporate Office  
MQ Parts Department  
18910 Wilmington Ave.  
Carson, CA 90746  
Contact: [email protected]  
Tel. (800) 421-1244  
Fax (310) 537-3927  
800-427-1244  
310-537-3700  
Fax: 800-672-7877  
Fax: 310-637-3284  
Service Department  
Warranty Department  
800-421-1244  
310-537-3700  
Fax: 310-537-4259  
Fax: 310-943-2238  
800-421-1244  
310-537-3700  
Fax: 310-943-2249  
Technical Assistance  
800-478-1244  
mexico  
United Kingdom  
MQ Cipsa  
Multiquip (UK) Limited Head Office  
Carr. Fed. Mexico-Puebla KM 126.5  
Momoxpan, Cholula, Puebla 72760 Mexico  
Contact: [email protected]  
Tel: (52) 222-225-9900  
Unit 2, Northpoint Industrial Estate, Tel: 0161 339 2223  
Fax: (52) 222-285-0420 Globe Lane,  
Dukinfield, Cheshire SK16 4UJ  
Contact: [email protected]  
Fax: 0161 339 3226  
Canada  
Multiquip  
4110 Industriel Boul.  
Laval, Quebec, Canada H7L 6V3  
Contact: [email protected]  
Tel: (450) 625-2244  
Tel: (877) 963-4411  
Fax: (450) 625-8664  
© COPYRIGHT 2013, MULTIQUIP INC.  
Multiquip Inc, 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 MUsT accompany the equipment at all times. This manual is considered a permanent part of the equipment and 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, 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 specifications, design or the information published  
in this publication at any time without notice and without incurring any obligations.  
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