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MQD306
User Manual
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Multiquip MQD306 User Manual

OPERATION AND PARTS MANUAL
MODELS MQ-D305/D306
SERIES DIAPHRAGM PUMPS
(Honda, Robin and B&S
Gasoline Engines)
Revision #2 (08/24/05)
THIS MANUAL MUST ACCOMPANY
THE EQUIPMENT AT ALL TIMES.
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
PARTS DEPARTMENT
800-427-1244 310-537-3700
MAYCO PARTS
800-306-2926 310-537-3700
SERVICE DEPARTMENT
800-478-1244 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 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
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 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 should
MQ Series D305/D306 Diaphragm Pumps.
Illustrations, descriptions, references and technical data contained in this
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
MQ-D305/D306 SERIES DIAPHRAGM PUMP S— PARTS MANUAL— REV. #2 (08/24/05) — PAGE 3
MQ-D305/D306 SERIES— TABLE OF CONTENTS
MQ-D305/D306 Series Gasoline Powered Diaphragm Pump
Here’s How To Get Help ............................................ 2
Table of Contents ...................................................... 3
Parts Ordering Procedures .................................... 4-5
Specifications (Pump/Engine) ....................................6
Pump Dimensions ......................................................7
Safety Message Alert Symbols .............................. 8-9
Rules For Safe Operation .................................. 10-11
General Information .................................................12
Pump Components .................................................. 13
Basic Engine ............................................................14
Pre-Inspection (Engine) ...........................................15
Pre-Set-up (Pump) ............................................. 16-17
Initial Start-up (Engine) ...................................... 18-19
Maintenance (Pump) ......................................... 20-21
Maintenance (Engine)........................................ 22-23
Preparation for Long-Term Storage ......................... 24
Troubleshooting (Pump)........................................... 25
Troubleshooting (Pump/Engine) ..............................26
Explanation Of Code In Remarks Column ............... 28
Suggested Spare Parts ............................................ 29
HONDA GX120K1QX2 Engine
Air Cleaner Assembly......................................... 42-43
Camshaft Assembly ........................................... 44-45
Carburetor Assembly ......................................... 46-47
Control Assembly ............................................... 48-49
Crankcase Cover Assembly ............................... 50-51
Crankshaft Assembly ......................................... 52-53
Cylinder Barrel Assembly ................................... 54-55
Cylinder Head Assembly .................................... 56-57
Fan Cover Assembly .......................................... 58-59
Flywheel Assembly ............................................ 60-61
Fuel Tank Assembly ........................................... 62-63
Ignition Coil Assembly ........................................ 64-65
Muffler Assembly ............................................... 66-67
Piston Assembly ................................................. 68-69
Recoil Starter Assembly..................................... 70-71
Gasket Kit Assembly .......................................... 72-73
Terms and Condition Of Sale
NOTE
— Parts .................... 74
As a continuing effort to update our parts book, contact the MULTIQUIP literature department for the latest revision of your "Operation and Parts Manual"
Component Drawings
Water Box and Groove Assembly ...................... 30-31
Pump Assembly (D306H Only) .......................... 32-35
Pump Assembly (D305R/D305B Only) .............. 36-39
UWK W Wheel Kit Assy....................................... 40-41
NOTE
Specification and part number are 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
MQ-D305/D306 SERIES DIAPHRAGM PUMP S— PARTS MANUAL— REV. #2 (08/24/05) — 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)
MQ-D305/D306 SERIES — SPECIFICATIONS (PUMP/ENGINE)
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MQ-D305/D306 SERIES — DIMENSIONS (PUMP)
A
Figure 1. MQ-D305/D306 Series Pump Dimensions
B
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MQ-D305/D306 SERIES DIAPHRAGM PUMP S— PARTS MANUAL— REV. #2 (08/24/05) — PAGE 7
MQ-D305/D306 SERIES — 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 instructions for the safe and efficient
NOTE
Before using these pumps, 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
operation of the
D306 Series Diaphragm Pumps.
Refer to the engine manufacturers instructions for data relative to its safe operation.
or
SERIOUSLY
MQ Model D305/
injured if you DO
HAZARD SYMBOLS
Potential hazards associated with the operation of the
Model D-306H, B and R Diaphragm Pumps.
with Hazard 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.
DANGER - Explosive Fuel Hazards
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.
MQ
will be referenced
WARNING - Lethal Exhaust Gas Hazards
WARNINGWARNING
WARNING
WARNINGWARNING
You CAN be NOT follow directions.
CAUTION
You CAN be
KILLED
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
INJURED
or
SERIOUSLY
if you DO NOT follow directions.
injured if you DO
WARNING - Burn Hazards
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.
WARNING - Respiratory Hazards
ALWAYS wear approved
protection when required.
respiratory
MQ-D305/D306 SERIES — SAFETY MESSAGE ALERT SYMBOLS
CAUTION - Rotating Parts Hazards
NEVER operate equipment with covers,
or guards removed. Keep fingers, hands, hair and clothing away from all moving parts to prevent injury.
CAUTION - Accidental Starting Hazards
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.
CAUTION - Eye and Hearing Hazards
ALWAYS wear approved eye and
hearing protection.
CAUTION - Equipment Damage Hazards
Other important messages are provided throughout this manual to help prevent damage to your light tower, other property, or the surrounding environment.
CAUTION - Read Manual
Before attempting to operate the pump, and to avoid serious injury to personnel, always read and understand operation manual. Failure to read and understand operation manual could result in serious harm or even death!
MQ-D305/D306 SERIES DIAPHRAGM PUMP S— PARTS MANUAL— REV. #2 (08/24/05) — PAGE 9
MQ-D305/D306 SERIES— RULES FOR SAFE OPERATION
■
Read this manual!
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
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.
MQ Model D-306H Diaphragm Pump.
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 pump's engine gives off carbon monoxide gas.
NEVER
DEADLY
hot!
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
■
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.
drugs
or
alcohol
.
■
ALWAYS use extreme caution when working with flammable liquids. When refueling, stop the engine and allow it to cool. DO NOT machine. Fire or explosion could result from fuel vapors, or if fuel is spilled on a hot engine.
■
NEVER operate the pump in an explosive atmosphere or near combustible materials. An explosion or fire could result causing severe
harm or even death.
■
Topping-off to filler port is dangerous, as it tends to spill fuel.
■
Maintain this equipment in a safe operating condition at all times.
■
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.
smoke
around or near the
bodily
■
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.
PAGE 10 — MQ-D305/D306 SERIES DIAPHRAGM PUMPS— PARTS MANUAL — REV. #2 (08/24/05)
MQ-D305/D306 SERIES— RULES FOR SAFE OPERATION
■
ALWAYS be sure the operator is familiar with proper safety
precautions and operation techniques before using pump.
■
NEVER leave the pump unattended, turn off engine when
unattended.
■
NEVER pump volatile, explosive, flammable or low flash point fluids. These fluids could ignite or explode.
■
NEVER operate the pump in an
■
Keep all
inexperienced
explosive
and
unauthorized
atmosphere.
people away
from the equipment at all times.
■
Before starting the pump, check that the clean-out cover is securely fasten.
■
ALWAYS ensure pump is on level ground before use.
■
Become familiar with the components of the pump before operating.
■
ALWAYS replace any worn or damaged warning decals.
■
NEVER pump corrosive chemicals or water containing toxic substances. These fluids could create serious health and environmental hazards. Contact local authorities for assistance.
■
NEVER open the priming plug when pump is hot. Hot water
inside could be pressurized much like the radiator of an automobile. Allow pump to cool to the touch before loosening plug.
TRANSPORTING
■
■
■
MAINTENANCE
■
■
■
■
■
■
EMERGENCIES
■
ALWAYS shutdown engine before transporting. Tighten fuel tank cap securely and close fuel cock to
prevent fuel from spilling. Drain fuel when transporting pump over long distances
or bad roads.
NEVER lubricate components or attempt service on a running pump.
ALWAYS allow the pump a proper amount of time to cool before servicing.
Keep the pump in proper running condition. Fix damage to the pump 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.
ALWAYS know the location of the nearest
extinguisher
and first aid kit.
fire
■
NEVER open the pump housing during operation or start the
pump with the clean-out cover removed. The rotating impeller inside the pump can cut or sever objects caught in it.
■
NEVER block or restrict flow from discharge hose. Remove
kinks from discharge line before starting pump. Operation with a blocked discharge line can cause water inside pump to overheat.
■
ALWAYS fill the pump casing with water before starting the engine. Failure to maintain water inside the pump housing will cause severe damage to the pump.
■
In
winter
drain water from pump housing to prevent freezing.
■
ALWAYS test the engine
ON/OFF
switch before operating.
■
The purpose of this switch is to shut down the engine .
■
Refer to the appropriate engine manual for technical questions or information recommended by Multiquip for this equipment. Damage to the equipment and/or injury to user may result.
In emergencies nearest phone or
always
know the location of the
keep a phone on the job site
.
Also know the phone numbers of the nearest
ambulance, doctor
and
fire department
. This information will be invaluable in the case of an emergency.
MQ-D305/D306 SERIES DIAPHRAGM PUMP S— PARTS MANUAL— REV. #2 (08/24/05) — PAGE 11
MQ-D305/D306 SERIES— GENERAL INFORMATION
APPLICATION
MQ Model D305BR/D306H series diaphragm
The
pumps are designed to be used for de-watering applications. The suction and discharge ports on this pump
use a 3-inch diameter opening, which allows the pump to pump at rate of approximately 5,100 gallons/hour (gph) or 19,305 liters/hour (lph).
Diaphragm pumps use a positive displacement design rather than centrifugal force to move water through the casing. This means the pump will deliver a specific amount of flow per stroke, revolution or cycle. These pumps are commonly referred to as mud hogs, mud hens and mud suckers. Their names reflect their
Elevation
Higher elevations will effect the performance of the pump. Due to less atmospheric pressure at higher altitudes, pumps DO NOT have the priming ability that they have at sea level. This is due to the “thinner air” or lack of oxygen at higher altitudes.
A general rule of thumb is that for every 1,000 feet of elevation above sea level a pump will lose one foot of priming ability.
For example, in Flagstaff, Arizona where the elevation is approximately 7,000 feet, the pump would have a suction lift of only 18 feet rather than the 25 feet at sea level. Table 3 shows suction lift at various elevations.
popularity for use in applications where shallow depths and slurry water render centrifugal pumps ineffective
Power Plant
This diaphragm pump can be powered by by either a Honda , Robin or Briggs & Stratton gasoline engine. This manual covers
HONDA GX-120
the
The HONDA GX-120 single cylinder
Feature
" . The drive shaft of the engine is coupled to an offset
gasoline engine.
is a 5.5 horsepower air cooled, 4-stroke,
gasoline engine that incorporates a low "
Oil Alert
connecting rod that is coupled to a flexible diaphragm. The connecting rod alternately raises (expands) and lowers (contracts) the diaphragm at a rate between 40 and 65 strokes per minute depending on engine speed.
Table 4 shows percentage drops in performance as elevation increases.
leveLaeS)840.3(0.01)275.4(0.51)690.6(0.02)026.7(0.52
,2)086.2(08.8)320.4(2.31)463.5(6.71)507.6(0.22
000,6)301.2(09.6)961.3(4.01)602.4(8.31)372.5(3.71
,3(000,01)737.1(07.5)126.2(06.8)474.3(4.11)853.4(3.41
Oil Alert Feature
low oil
or
no oil
In the event of
, the HONDA GX-120 engine has a built-in oil alarm engine shut-down feature. In the event the oil level is low the engine will automatically shut-down.
Suction Lift
This pump is intended to be used for dewatering applications and is capable of suction lifts up to 25 feet at sea level. For optimal suction lift performance keep the suction hose or line as short as possible. In general always place the pump as close to the water as possible.
Pump Support
The pump should always be placed on
solid stationary ground
in a level position.
NEVER place the pump on
soft soil
. The suction hose or pipe connection should always be checked for tightness and leaks. A small suction leak in the hose or fittings could prevent the pump from priming.
NOTE
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)840
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)928,1(000,6%3
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)840,3(000,01%88%87
9%78
Please contact your nearest authorized MQ dealer for any accessories that your pump may require.
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PAGE 12 — MQ-D305/D306 SERIES DIAPHRAGM PUMPS— PARTS MANUAL — REV. #2 (08/24/05)
MQ-D305/D306 SERIES— PUMP COMPONENTS
Figure 2 shows a typical application using the MQ D305/D306 series diaphragm pump. Please note that this pump is intended for the removal of clean water and water containing some debris and solids. Maximum size of solids should not exceed 1.5 inch (38 mm) in diameter. DO NOT set strainer on bottom of water bed. Placing the strainer above the water bed will prevent the pump from drawing in excessive amounts of sand and foreign debris.
NOTE
dealer for quick disconnect hoses
4
and fittings.
Contact your nearest Multiquip
5
Figure 2. MQ-D305/D306 Series Pump Application
1. Pump – The MQ D305/D306 series are 3-inch diaphragm pumps and are used in general de-watering applications. Typical dewatering applications consist of cleaning out cesspools and septic tanks, draining slow seepage from small excavations, trenches and construction sites, or pumping out industrial waste.
6. Suction Port – Connect a 3-inch inlet hose to this port.
2. Fill Cap – Prior to operation, the pump casing should be filled with water. Remove this cap to add water to the pump.
7. Suction Hose – Connect a flexible rubber hose to the
After the initial prime, a sufficient amount of water will be retained in the casing so that the operator will not need to re-prime later.
If the casing is dry or has insufficient water, the pump will
8. Strainer – Always attach a strainer to bottom side of the
have difficulty in priming which could lead to premature mechanical seal wear thus causing damage to the pump.
3. Discharge Port – Connect a 3-inch discharge hose to this port. Use two worm clamps to secure the hose.
9. Support Body – This unit is equipped with a hinged
4. Worm Clamp – Used to secure the hose to the inlet and outlet ports on the pump. Use two clamps to secure the hose on the inlet side of the pump.
1
2
4
7
3
9
6
8
4
Use two worm clamps to secure the hose.
suction port on the pump. Make sure that the hose lays flat and is not kinked. Use only recommended type suction hose. Contact Multiquip parts department for ordering information
suction hose to prevent large objects and debris from entering the pump. Strainer should be positioned so that it will remain completely under water. Running the pump with the strainer above water for long periods can damage pump.
support assembly, that allows for easy access to the pump body.
5. Discharge Hose – Connect a flexible rubber hose to the discharge port on the pump. Make sure that the hose lays flat and is not kinked. Use only recommended type discharge hose. Contact Multiquip parts department for ordering information.
MQ-D305/D306 SERIES DIAPHRAGM PUMP S— PARTS MANUAL— REV. #2 (08/24/05) — PAGE 13
MQ-D305/D306 SERIES— BASIC ENGINE
Figure 3. Engine Controls and
Components
INITIAL SERVICING
The engine (Figure 3) must be checked for proper lubrication and filled with fuel prior to operation. Refer to the Honda manufacturers engine manual for instructions and details for 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.
Explosive FuelExplosive Fuel
Explosive Fuel
Explosive FuelExplosive Fuel
DANGER - Explosive Fuel
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
SLOW
advanced forward
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.
, lever back toward operator
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.
NOTE
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.
CAUTION - Burn 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.
5. Fuel Valve Lever – OPEN to let fuel flow, CLOSE to stop the flow of fuel.
10. Fuel Tank – Holds unleaded gasoline. For additional information refer to engine owner's manual.
Honda Engine Shown
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.
PAGE 14 — MQ-D305/D306 SERIES DIAPHRAGM PUMPS— PARTS MANUAL — REV. #2 (08/24/05)
MQ-D305/D306 SERIES— PRE-INSPECTION (ENGINE)
CAUTION - Read Manual
Please read the entire maintenance section in this manual before servicing the pump. In addition for operator safety, please read all safey messages at the begining of the manual
Inspection
1. Clean the pump, removing dirt and dust, particularly the engine cooling air inlet, carburetor and air cleaner.
2. Check the air filter for dirt and dust. If air filter is dirty, replace air filter with a new one as required.
3. Check carburetor for external dirt and dust. Clean with dry compressed air.
4. Check fastening nuts and bolts for tightness.
Engine Oil Check
1. To check the engine oil level, place the pump on secure level ground with the engine stopped.
2. Remove the filler dipstick from the engine oil filler hole (Figure 4) and wipe clean.
Motor fuels are highly flammable and can be dangerous if mishandled. DO NOT smoke while refueling.
should be done only when the engine is stopped and has had an opportunity to cool down. DO NOT attempt to refuel the pump if the engine is
hot! or running
immediately.
fuel residue has been completely wiped up, and the area surrounding the engine is dry.
Figure 5. Engine Oil Dipstick (Oil Level)
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DANGER - Explosive Fuel
Adding fuel to the tank
In the event of any spilled fuel, wipe up
DO NOT attempt to start the engine until the
Fuel Check
Figure 4. 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 (Figure 5), fill to the edge of the oil filler
hole with the recommended oil type (Table 5). Maximum oil capacity is .63 quarts (.60 liters)
MQ-D305/D306 SERIES DIAPHRAGM PUMP S— PARTS MANUAL— REV. #2 (08/24/05) — PAGE 15
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.
3. When refueling, be sure to use a strainer for filtration. DO
NOT top-off fuel. Wipe up any spilled fuel
immediately!
MQ-D305/D306 SERIES— PRE-SETUP (PUMP)
Before Starting:
CAUTION - General Safety Precautions
NEVER operate the pump in a confined
area or enclosed area structure that does not provide ample
free flow of air
.
rigid
3. Remember suction hoses must be collapse when the pump is in operation.
4. Check that
Place hose so that it lays as straight as it is possible on the ground. Remove any twists or sharp bends from hose which may block the flow of water.
the
discharge
hose (Figure 2) is not restricted.
enough not to
ALWAYS wear approved eye and hearing protection before operating the compactor.
Before Starting
1. Read safety instructions at the
beginning of manual.
2. Place pump as near to water as possible, on a firm flat, level surface.
3. To prime pump, remove fill cap (Figure 2) and fill pump casing with water. If the pump casing is not filled with water before starting, it will not begin pumping.
CAUTION - Pump Casing
Pump casing
must
be filled with water before using
5. The discharge hose is usually a
6. Make sure the
The strainer should be positioned so it will remain completely
under water
water for long periods can damage the pump.
pump. Otherwise pump will not be able to begin pumping.
DO NOT pump flammable fluids, corrosive chemicals or fluids
WARNING - Fill Cap
DO NOT open
fill cap
if pump is hot! Water inside may
containing toxic substances. These fluids can create potentially dangerous health and environmental hazards. Contact local authorities for assistance.
be under pressure.
Suction and discharge hoses are
NOTE
available from Multiquip. Contact your nearest dealer for more information.
collapsible
hose, however if a thin-walled discharge hose is not avail­able, a rigid suction hose can be substituted in its place.
suction strainer
securely attached to the water end of the suction hose. The strainer is designed to protect the pump by preventing large objects from being pulled into the pump.
(Figure 2) is clean and
(thin-walled)
CAUTION - Strainer
. Running the pump with the strainer above
CAUTION - Flammable Fluids
4. Check for between the pump and engine housing, the seal inside the pump may be worn or damaged. Continued operation of the pump is not recommended. Further usage of the pump under these conditions may cause severe water damage to engine.
Hoses and Clamps
1. Check that all hoses are Make certain suction hose (Figure 2) does not have any air leakage. Tighten hose clamps and couplings as required.
2. It is recommended that 2 clamps be used when securing the suction hose to the inlet side (suction) of the pump.
leaks
between pump and engine. If water is leaking
This pump uses a water-cooled water from seeping into the engine. The passage of water through the pump casing lubricates the seal and prevents it from overheating. in the casing as this will cause damage to the mechanical
securely
PAGE 16 — MQ-D305/D306 SERIES DIAPHRAGM PUMPS— PARTS MANUAL — REV. #2 (08/24/05)
attached to the pump.
seal.
CAUTION - Mechanical Seal
mechanical seal
NEVER!
operate the pump without water
to prevent
MQ-D305/D306 SERIES— PRE-SETUP (PUMP)
Gear Reduction Oil (Transmission)
1. Remove the transmission oil level plug (Figure 6). If oil
begins to seep out as the plug is being removed, then it can be assumed that the transmission oil is at the proper operating level.
2. If oil does not seep out as the oil level plug is being removed,
then remove the transmission oil fill plug and fill with
SAE 80/90
Transmission oil capacity is capacity is 1-1/4 pints (590 ml.).
EP gear oil
to the proper operating level.
Connecting Rod Bearing Lubrication
1. Grease connecting rod bearing thru the access hole (Figure 7) every 25 hours of operation.
2. Use only NLG1 Grade #2 consistency.
premium lithium based grease
, conforming to
NOTE
Figure 6. Transmission Oil Level
Diaphragm pumps will handle fluids containing considerable solids (not to exceed 1.5 inch/28 mm), however, if the mixture is too heavy to be pumped, water must be added until the mixture becomes sufficiently fluid for pumping.
Figure 7. Connecting Rod Bearing Lubrication
MQ-D305/D306 SERIES DIAPHRAGM PUMP S— PARTS MANUAL— REV. #2 (08/24/05) — PAGE 17
MQ-D305/D306 SERIES — INITIAL START-UP (ENGINE)
CAUTION - Read Manual
DO NOT attempt to operate the pump until the
Safety, General Information and Inspection sections of this manual have been
thoroughly understood
This section is intended to assist the operator with the
start-up
this section be read carefully before attempting to use the pump in the field.
Starting the Engine (
1. Place the engine
of the diaphragm pump. It is extremely important that
position.
Figure 8. Engine Fuel Valve Lever (ON Position)
.
HONDA
fuel valve lever
read and
initial
engine)
(Figure 8) to the "ON"
4. Place the if starting a
5. Place the position.
choke lever
warm engine
Figure 11. Engine Choke Lever (Closed)
engine ON/OFF switch
(Figure 9) in the "CLOSED " position
or the
temperature is warm.
(Figure 12) in the "ON "
2. Move the position, about 1/3 of the way toward the fast position.
3. Place the starting a
throttle lever
Figure 9. Throttle Lever (1/3 Start Position)
choke lever
cold
engine.
(Figure 9) away from the slow
(Figure 10) in the "OPEN " position if
Figure 12. Engine ON/OFF Switch (ON Position)
6. Grasp the starter grip (Figure 13) and slowly pull it out. The resistance becomes the hardest at a certain position, corre­sponding to the compression point. Pull the starter grip briskly and smoothly for starting.
Figure 13. Starter Grip
Figure 10. Engine Choke Lever (Open)
PAGE 18 — MQ-D305/D306 SERIES DIAPHRAGM PUMPS— PARTS MANUAL — REV. #2 (08/24/05)
MQ-D305/D306 SERIES — INITIAL START-UP (ENGINE)
7. If the engine has started, slowly return the choke lever (Figure 14 ) to the “CLOSED” position. If the engine has not started repeat steps 1 through 6.
Figure 14. Choke Lever (Closed)
8. Before the pump is placed into operation, run the engine for several minutes. Check for fuel leaks, and noises that would associate with a lose component.
Stopping The Engine
Normal Shutdown
1. Move the throttle lever to the IDLE position (Figure 16) and run the engine for three minutes at low speed.
2. After the engine “OFF” position (Figure 17).
Figure 16. Throttle Lever (Idle)
cools
, turn the engine ON/OFF switch to the
To begin pumping, place the throttle lever (Figure 15) in the
9.
"RUN" position.
3. Place the position.
Figure 15. Throttle Lever (Run)
Emergency Showdown
Pump speed can be
NOTE
can be determined by trying to pump at several speeds. Limit maximum speed to 65 strokes per minute of the diaphragm (2,800 RPM engine speed).
the engine throttle control from full volume, 65 strokes per minute, to about 40 strokes per minute for lesser volume. Smoothest operation
regulated
1. Move the throttle lever quickly to the “IDLE
with
place the engine ON/OFF switch in the “OFF” position.
Figure 17. Engine ON/OFF Switch (OFF)
fuel shut-off lever
Figure 18. Fuel Valve Lever (OFF)
(Figure 18) in the ”OFF”
”
position, and
MQ-D305/D306 SERIES DIAPHRAGM PUMP S— PARTS MANUAL— REV. #2 (08/24/05) — PAGE 19
MQ-D305/D306 SERIES— MAINTENANCE (PUMP)
Pump Vacuum Test
Pump Cleaning
After pumping water containing large amounts of dirt and
CAUTION - Priming Pump
DO NOT attempt to start the engine unless the pump has
previously been will occur if pump has not been primed.
primed
with water. Severe pump damage
debris, perform the following:
1. Remove the drain plug from the pump housing (Figure 2) and drain any water left in the pump.
3. Clean and remove dirt, debris from pump casing. Inspect impeller and volute for wear. Replace any damaged or
To perform the pump vacuum test do the following:
1. Remove the pump fill cap (Figure 2), and fill the pump with water.
2. Start the engine as outlined in the initial start-up section, and wait for the pump to begin pumping.
3. As shown in Figure 19 (next page), place a water hose inside the discharge opening of the pump, and turn on the water. This flow of water into the discharge opening will
prevent
4. Place the
the pump from running dry.
Pump Vacuum Tester
(P/N 7000030) over
worn parts.
Gear Reduction Oil (Transmission)
1. Change transmission oil after the first operation. Use SAE 80/90 capacity is 1-1/4 pints (590 ml.). Check oil level periodically and change oil after every
Connecting Rod Bearing Lubrication
1. Grease connecting rod bearing thru the access hole (Figure 7) every 25 hours of operation.
2. Use only NLG1 Grade #2 consistency.
the pump suction (inlet) opening (Figure 19) with the vacuum gauge facing upwards. It may be necessary to apply a small amount of water around the rubber seal of the vacuum tester to make a good suction fit.
5. Check and make sure that there are no air leaks between the vacuum tester and the inlet port on the pump. If air
Connecting Rod Bearing Lubrication
1. Keep interior of pump and valves clean. Flush out pump with clear water after operation.
2. Remove connecting rod guard occasionally and wipe up excess grease from connecting rod bearing.
leaks are present reseat vacuum tester.
40 hours
EP gear oil.
400 hours
premium lithium based grease
Transmission oil
of operation.
, conforming to
of
6. Run the pump for a few minutes while monitoring the vacuum gauge. If the gauge indicates a reading between
-25 and -20 in. Hg. (inches of mercury) then it can be assumed that the pump is working correctly.
25 in. Hg (inches of mercury)
NOTE
translates into 25 feet of lift at
level
.
sea
7. If the vacuum tester gauge indicates a reading
below
-20 in. Hg, it can then be assumed that the pump is not functioning correctly, and corrective action needs to be taken.
6. To test the
flapper valve
, shut down the engine. The vacuum tester should remain attached to the pump suction inlet port by vacuum. This indicates the pump's flapper valve is seating properly to hold water in the suction hose when the engine is stopped. This prevents backflow and allows for faster priming when the engine is restarted.
PAGE 20 — MQ-D305/D306 SERIES DIAPHRAGM PUMPS— PARTS MANUAL — REV. #2 (08/24/05)
MQ-D305/D306 SERIES — MAINTENANCE (PUMP)
Figure 19. Pump Vacuum Tester
NOTE
MQ-D305/D306 SERIES DIAPHRAGM PUMP S— PARTS MANUAL— REV. #2 (08/24/05) — PAGE 21
Pressure reading may vary depending on altitude. See Tables 3 and 4.
MQ-D305/D306 SERIES — MAINTENANCE (ENGINE)
Engine Maintenance
Perform engine maintenance procedures as referenced by Table 6 below:
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Reference manufacturer engine manual for specific servicing instructions.
PAGE 22 — MQ-D305/D306 SERIES DIAPHRAGM PUMPS— PARTS MANUAL — REV. #2 (08/24/05)
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MQ-D305/D306 SERIES— MAINTENANCE (ENGINE)
Maintenance
Perform the engine maintenance procedures as indicated 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 spring box and bellows 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 20), 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.
ENGINE AIR CLEANER
1. Remove the air cleaner cover and foam filter element as
2. Tap the paper filter element (Figure 22) several times on a
3. Clean foam element in warm, soapy water or nonflammable
DANGER - Combustion (Fire , Explosion)
DO NOT usegasoline as a cleaning solvent. The possibility
exists of fire or explosion..
shown in Figure 22.
hard surface to remove dirt, or blow compressed air [not exceeding 30 psi (207 kPa, 2.1 kgf/cm element from the air cleaner case side. Brushing will force dirt into the fibers. Replace the paper filter element if it is excessively dirty.
solvent. Rinse and dry thoroughly. Dip the element in clean engine oil and completely squeeze out the excess oil from the element before installing.
2
)] through the filter
NEVER
brush off dir t.
Figure 20. Spark Plug Gap
ENGINE OIL
warm
1. Drain the engine oil when the oil is
Figure 21.
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 5. Engine oil capacity is 1.16 quarts (1.1 liters). DO NOT overfill.
4. Install drain bolt with sealing washer and tighten se-
curely.
as shown in
Figure 22. Engine Air Cleaner
Figure 21. Engine Oil (Draining)
MQ-D305/D306 SERIES DIAPHRAGM PUMP S— PARTS MANUAL— REV. #2 (08/24/05) — PAGE 23
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