Multiquip MG30M2D User Manual
OPERATION AND PARTS MANUAL
SERIES
MODEL MG30T2D
MODEL MG30M2D
PLASTER MORTAR PUMPS
MODEL MG30T3D
MODEL MG30M3D
FIREPROOFING PUMPS
Revision #3 (09/15/11)
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
Diesel engine exhaust and some of
PAGE 2 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 3
TABLE OF CONTENTS
Table of Contents .................................................... 4
Parts Ordering Procedures ..................................... 5
Safety Message Slert Dymbols ............................... 6
Rules for Safe Operation .................................... 8-10
Operation and Safety Decals ........................... 12-13
Specifications ........................................................ 14
Dimensions (MG30-M2D Mobile unit) .................. 16
Dimensions (MG30-T2D Tag unit) ....................... 17
General Information ......................................... 18-22
MQ MAYCO MG-30 Mobile/Tag Units
Plaster/Fireproofing Pump
Application........................................................ 23-26
Mixer Major Components ................................. 26-27
MG30 M2D Major Components ....................... 28-29
Hatz 8.5 HP Engine Components .................... 30-31
Pre-Inspection (Mixer) ...................................... 32-34
Initial Start-Up (Mixer Mobile only) ........................ 35
Pre-Inspection (Pump) ..................................... 36-39
Initial Start-Up (Pump) .......................................... 40
Initial Start-Up/Operation ...................................... 41
Remote Operation ................................................. 42
Towing Guidelines ............................................ 43-45
Trailer Safety Guidelines................................... 46-47
Maintenance (Mixer) ........................................ 48-49
Maintenance (Pump) ........................................ 50-53
Troubleshooting (Engine) ...................................... 54
Troubleshooting (Engine/Mixer) ............................ 55
Troubleshooting (Pump) ........................................ 56
Wiring Diagram ................................................ 57-58
Power Module Layout ............................................ 59
PARTS ILLUSTRATIONS
Explanation of Code in Remarks Column ............. 60
Suggested Spare Parts ......................................... 61
Decal Placement .............................................. 62-63
Frame Assembly .............................................. 64-65
Hood Assembly ................................................ 66-67
Hopper Assembly ............................................. 68-69
Chassis Assembly ............................................ 70-71
Compressor Assembly ..................................... 72-43
Fuel Tank Assembly ......................................... 74-75
Piston Oiler Tank Assembly .............................. 76-77
Rocker Arm Assembly ...................................... 78-79
Push Rod (3.5-Inch) Assembly ........................ 80-81
Push Rod (3.75-Inch) Assembly ...................... 82-83
Crankshaft and Gear Box Assembly ................ 84-85
Battery Assembly ............................................. 86-87
Tag Unit Axle Assembly .................................... 88-89
Mobile Unit Axle Assembly ............................... 90-91
Control Box Assembly ...................................... 92-93
Manifold (2-inch Outlet) Assembly ................... 94-95
Pressure Relief Valve (2-Inch Outlet) Assembly .. 96-97
Manifold (3-Inch Outlet) Assembly ................... 98-99
Pressure Relief Valve (3-inch Outlet) Assembly ..... 100-101
Lubrication Panel Assembly ........................ 102-103
Remote Control Cable Assembly .................104-105
Tag Unit Trailer Assembly ............................. 106-107
Hatz 2M41LZ Engine Assembly ................... 108-109
Hatz 1B30 Engine (Clutch) Assembly .......... 110-111
Mixing Drum Assembly................................. 112-113
Paddle Shaft Assembly................................ 114-115
Frame Assembly .......................................... 116-117
Cab Assembly .............................................. 118-119
Transmission Assembly ................................ 120-121
HATZ 1B30 DIESEL ENGINE
Spare Parts Kit Assembly ............................. 122-123
Accessories Assembly.................................. 124-125
Crankcase and Engine Mount Assembly ..... 126-127
Crankshaft Assembly ................................... 128-129
Camshaft Assembly ..................................... 130-131
Piston Assembly ........................................... 132-133
Cylinder Head Assembly ..............................134-135
Oil Pump/Governor Assembly ...................... 136-139
Timing Cover Assembly ............................... 140-141
Flywheel Assembly ....................................... 142-143
Fuel Injection Assembly ............................... 144-147
Recoil Starter Assembly ............................... 148-149
Air Duct Assembly ........................................ 150-153
Crankcase Breather Assembly..................... 154-155
Fuel Tank Assembly ..................................... 156-157
Air Filter Assembly ....................................... 158-159
Muffler Assembly .......................................... 160-161
Starter/Alternator Assembly ......................... 162-163
Electronic Components Assembly................ 164-165
Speed Control Assembly .............................. 166-167
Terms and Conditions of Sale— Parts ................ 168
NOTE
Specification and part number are
subject to change without notice.
PAGE 4 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
r
PARTS ORDERING PROCEDURES
Ordering parts has never been easier!
Choose from three easy options:
January 1
Effective:
st
, 2006
Best Deal!
Order via Internet (Dealers Only):
Order parts on-line using Multiquip’s SmartEquip website!
■ View Parts Diagrams
■ Order Parts
■ Print Specification Information
Goto www.multiquip.com and click on
Order Parts
Order via Fax (Dealers Only):
All customers are welcome to order parts via Fax.
Domestic (US) Customers dial:
1-800-6-PARTS-7 (800-672-7877)
Non-Dealer Customers:
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
to log in and save!
Order via Phone:
If you have an MQ Account, to obtain a Username
and Password, E-mail us at: parts@multiquip.
com.
To obtain an MQ Account, contact you
District Sales Manager for more information.
Use the internet and qualify for a 5% Discount
on Standard orders for all orders which include
complete part numbers.*
Fax your order in and qualify for a 2% Discount
on Standard orders for all orders which include
complete part numbers.*
Domestic (US) Dealers Call:
1-800-427-1244
International Customers should contact
their local Multiquip Representatives for
Parts Ordering information.
Note: Discounts Are Subject To Change
Note: Discounts Are Subject To Change
When ordering parts, please supply:
❒ 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
NOTICE
All orders are treated as Standard Orders and will
ship the same day if received prior to 3PM PST.
❒ Specify Preferred Method of Shipment:
✓ UPS/Fed Ex ✓ DHL
■ Priority One ✓ Tr uck
■ Ground
■ Next Day
■ Second/Third Day
www.multiquip.com
WE ACCEPT ALL MAJOR CREDIT CARDS!
MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 5
MG-30 PUMP — SAFETY MESSAGE ALERT SYMBOLS
FOR YOUR SAFETY AND THE SAFETY OF OTHERS!
Safety precautions should be followed at all times when operating
this equipment. Failure to read and understand the Safety
Messages and Operating Instructions could result in injury to
yourself and others.
This Owner's Manual has been
developed to provide complete
NOTE
Before using this pump, ensure that the operating
individual has read and understands all instructions in this
manual.
instructions for the safe and efficient
operation of the Multiquip MAYCO
MG30-M (Mobile Unit) and
MG30-T (Tag Unit) plaster
fireproofing
engine manufacturers instructions for
data relative to its safe operation.
pump. Refer to the
and
HAZARD SYMBOLS
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,
Lethal Exhaust Gases
Diesel 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.
Explosive Fuel
Diesel fuel
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. NEVER
use fuel as a cleaning agent.
is extremely flammable, and its
DANGER: You WILL be KILLED or
SERIOUSLY injured if you do not follow
directions.
WARNING: You CAN be KILLED or
SERIOUSLY injured if you do not follow
directions.
CAUTION: You CAN be injured if you
do not follow directions.
Potential hazards associated with operation of the pump will be
referenced with Hazard Symbols which appear throughout this
manual, and will be referenced in conjunction with Safety
Message Alert Symbols.
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.
Rotating Parts
NEVER operate equipment with covers, or
guards removed. Keep
and clothing away from all moving parts to
prevent injury.
fingers, hands, hair
PAGE 6 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
MG-30 PUMP — SAFETY MESSAGE ALERT SYMBOLS
Accidental Starting
ALWAYS place the ON/OFF switch in the OFF
position. NEVER perform maintenance on the
unit with the ignition key in the ON position.
Over Speed Conditions
NEVER tamper with the factory settings of the
engine governor or settings. Personal injury
and damage to the engine or equipment can
result if operating in speed ranges above
maximum allowable.
This
pump
surrounding environment could
NOTE
be damaged if you do not follow
instructions.
, other property, or the
Respiratory Hazard
ALWAYS wear approved
protection.
respiratory
Sight and Hearing hazard
ALWAYS wear approved
protection.
eye
and
hearing
Equipment Damage Messages
Other important messages are provided throughout this manual
to help prevent damage to your plaster and fireproofing pump,
other property, or the surrounding environment.
MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 7
MG-30 PUMP — RULES FOR SAFE OPERATION
■
CAUTION:
Failure to follow instructions in this manual
may lead to serious injury or even
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 MG30-M2D (Mobile Unit) and MG30-T2D (Tag
Unit) plaster and fireproofing pump:
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.
■
NEVER operate this equipment when not feeling
well due to fatigue, illness or taking medicine.
■
NEVER operate this equipment under the
influence or drugs or alcohol.
■
ALWAYS check the machine for loosened threads or bolts
before starting.
■
ALWAYS wear proper respiratory (mask),
protection equipment when operating the pump .
hearing
death!
and
eye
Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
■
Manufacture does not assume responsibility for any accident
due to equipment modifications.
■
NEVER use accessories or attachments, which are not
recommended by Multiquip for this equipment. Damage to
the equipment and/or injury to user may result.
■
NEVER touch the hot exhaust manifold,
muffler or cylinder. Allow these parts to
cool before servicing engine or pump .
■
High Temperatures – Allow the engine to cool before adding
fuel or performing service and maintenance functions. Contact
with
■
The engine section of this pump requires an adequate free
flow of cooling air.
■
ALWAYS refuel in a well-ventilated area, away from sparks
and open flames.
■
ALWAYS use extreme caution when
working with flammable liquids. When
refueling, stop the engine and allow it to
cool.
■
NEVER
Fire or explosion could result from
vapors
hot!
components can cause serious burns.
smoke
NEVER
around or near the machine.
operate the pump in any enclosed
or narrow area where free
flow of the air is restricted. If
the air flow is restricted it
will cause serious damage
to the pump or engine and
may cause injury to
people. Remember the
pump's engine gives off
DEADLY
gas.
carbon monoxide
fuel
, 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
■
Topping-off to filler port is dangerous, as it tends to spill fuel.
PAGE 8 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
bodily harm or even death.
MG-30 PUMP — RULES FOR SAFE OPERATION
■
ALWAYS remove the
unattended.
■
ALWAYS block the
ignition key
wheels
on the unit when using on a
when leaving the pump
Transporting
■
■
slope.
■
ALWAYS maintain this equipment in a safe operating
■
condition at all times.
■
ALWAYS stop the engine before servicing, adding fuel or oil.
■
NEVER run engine without air filter. Severe engine damage
may occur.
■
ALWAYS be sure the operator is familiar with proper safety
precautions and operation techniques before using pump.
■
ALWAYS store equipment properly when it is not being used.
Equipment should be stored in a clean, dry location out of
the reach of children.
■
DO NOT operate this equipment unless all guards and safety
Towing
■
■
■
■
devices are attached and in place.
■
CAUTION must be exercised while servicing this equipment.
■
Rotating and moving parts can cause injury if contacted.
■
Keep all
from the equipment at all times.
■
Before start-up, check the hopper and remove all foreign
matter and debris.
inexperienced
and
unauthorized
people away
■
■
■
ALWAYS shutdown engine before transporting the pump.
Tighten fuel tank cap securely and close fuel valve to prevent
fuel from spilling.
Drain fuel when transporting pump over long distances or
bad roads.
Before towing, check the hitch and secure the safety chain to
the towing vehicle.
When towing, an adequate safety chain must be fastened to
the frame, refer to pages 44 and 45.
Tow only with a vehicle and hitch rated to pull a 5,000 lbs.
load.
If unit is equipped with ball hitch coupler, use only 2" all steel
ball rated for minimum of 5,000 lbs. Use 1" hardened steel
pull pin, if not equipped with ball hitch.
This equipment shall not be towed or operated by individuals
who cannot read understand the signs, decals or operating
instructions.
When towing at night,
always
have rear tail lights ON.
DO NOT tow unit with hopper full of material.
DO NOT tow unit with hoses attached.
■
DO NOT use worn or damaged hose couplings, inspect all
■
hoses and couplings for wear. Replace any worn or defective
hose or couplings immediately.
■
Keep hands out of the hopper when the engine is running.
■
DO NOT operate unit with the
■
DO NOT disconnect hose couplings or nozzle while under
hood open
.
Maintenance Safety
■
■
pressure. Relieve pressure by manually activating pressure
relief valve at manifold.
■
Unauthorized equipment modifications will void all
■
■
warranties.
■
Check all fasteners periodically for tightness. Also check
■
towing tongue bolt, lock nut and wheel lug nuts for wear.
■
Test the
pump's ON/OFF
switch. The purpose of this test is
■
to shut down the engine.
■
Refer to the
questions or information
Engine Owner's Manual
for engine technical
recommended by Multiquip for this
equipment. Damage to the equipment and or injury to user
may result.
DO NOT tow unit in excess of 45 MPH on highways..
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 plastic containers to dispose of hazardous
waste.
MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 9
MG-30 PUMP — RULES FOR SAFE OPERATION
Emergencies
■
ALWAYS know the location of the nearest
■
ALWAYS know the location of the nearest and
fire extinguisher
first aid kit
.
.
■
In emergencies
nearest phone or
Also know the phone numbers of the nearest
ambulance, doctor
information will be invaluable in the case of an
emergency.
always
know the location of the
keep a phone on the job site
and
fire department
.
. This
PAGE 10 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
NOTE PAGE
MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 11
MG-30 PUMP — OPERATION AND SAFETY DECALS
Machine Safety Decals
The MG-30 mortar and plaster pump is equipped with a number of safety decals. These decals are provided for operator safety and
maintenance information. Figure 1 below illustrates these decals as they appear on the machine. Should any of these decals
become unreadable, replacements can be obtained from your dealer.
Figure 1. MG-30 Operation and Safety Decals (Pump Only)
PAGE 12 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
MG-30 PUMP — OPERATION AND SAFETY DECALS
Machine Safety Decals
The Essick EM 120SM mortar and plaster mixer is equipped with a number of safety decals. These decals are provided for operator
safety and maintenance information. Figure 2 below illustrates these decals as they appear on the mixer. Should any of these decals
become unreadable, replacements can be obtained from your dealer.
Figure 2. MG-30 Operation and Safety Decals (Mixer Only)
MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 13
MG-30 PUMP — SPECIFICATIONS
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PAGE 14 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
NOTE PAGE
MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 15
MG-30 PUMP — DIMENSIONS (MG30-M2D MOBILE UNIT)
I
M
L
K
MG30-M2D
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PAGE 16 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
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Figure 3. MG-30 (Mobil Unit Dimensions)
MG30-2
A
B
C
D
I
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F
G
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MG-30 PUMP — DIMENSIONS (MG30-TD2 TAG UNIT)
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MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 17
MG-30 PUMP — GENERAL INFORMATION
General
The MAYCO Model MG30-M and MG30T plaster-mortar,
fireproofing pumps are designed to pump material at a steady
rate of flow. This is accomplished with two pistons. One piston
does all the pumping; the other is a
piston is a
which causes the pulsating material from the pumping piston to
be pumped at a steady rate of flow.
Your MAYCO pump has been serviced and test-run at the
factory. Upon delivery and inspection the machine is ready for
operation on the job.
This pump uses a 3-1/2 inch pumping piston and therefore
develops a higher pressure than most concrete pumps. It is
extremely critical that the pump drive components, pumping lines
and components are of the finest quality and maintained in a
manner to prevent accidents. Use only
hoses and couplings.
The MG-30 has been assembled with a
installed at the discharge port on the manifold. NEVER pump
materials unless this (pressure relief valve) mechanism is
installed.
Normally, the 750 psi rated brass cap is used in plaster
applications, whereas the 1,000 psi rated unit is used for higher
pressure applications and fireproofing. The brass cap and ball
should be removed and
to prevent material setting up around the ball.
If material hardens around the ball, it will not be effective as a
relief valve when high pressure develops. Install ball discharge
in downward position. Use the manual relief part of this valve to
relieve line pressure before disconnecting material lines or hoses
Power for the operation of this pump is supplied by a Hatz Model
2M41LZ, 35 H.P. diesel air-cooled engine. This engine transfers
power through a V-belt to a totally enclosed speed reducer and
also operates a twin-cylinder piston type air compressor.
The MG-30 is equipped with an
solenoid
electrically controlled solenoid allows the operator to
stop
When the solenoid valve is energized (i.e. electric current is
applied to the solenoid) the engine speed will increase to the
pre-set governed speed, engaging the
pump. When the solenoid is de-energized, the engine speed
will decrease, returning to idle, disengaging the centrifugal clutch
and pump.
compensation piston
cleaned daily
valve
and
gravity-feed piston oiler system
the pump remotely from the nozzle.
slave piston
and operates in a manner
high pressure
pressure relief valve
, or more often if necessary,
electrically controlled
centrifugal clutch
. The slave
rated
. The
start
and
Located at the rear of the pump is the mixing unit. The drum
batch capacity of this mixing unit is between 3.5 and 4.0 bags.
The mixer section of the pump can be powered by a either a XX
HP Honda gasoline engine, 8.0 HP Hatz diesel or 2.0 HP electric
motor.
Due to the abrasive nature of the materials being pumped, some
parts of the machine are likely to be worn from use more rapidly
than others. It is therefore suggested that spare parts be kept in
ready reserve at the job site to prevent downtime.
CAUTION :
to
whip
or move in a manner that could cause injury to personnel.
When moving hoses from one job site application to another it is
important to walk the entire system and
kinks or sharp bends in the hose, before starting or resumong
.
the pumping operation.
The following definitions will help assist you in understanding
common pump terminology.
Centrifugal Clutch
The centrifugal clutch is designed to slip when the engine speed
drops due to overloading of the pump. This is a safety device to
protect other parts of the machine from damage and to prevent a
buildup of pressure in the material hose. Continued operation of
the machine when the clutch is slipping will cause damage to
the clutch. The clutch needs no adjustment or lubrication.
Pump Head Unit
The pump head unit consists of two pistons--one being the
pumping piston and the other a compensating piston, driven by
the cam and rocker arm principle.
The pump housing is equipped with inlet and outlet valve seats
and two special hard rubber or steel balls. When the piston is
and
retracted, the inlet valve seat opens for intake of material into the
piston chamber; when the piston is extended, the inlet valve
closes and the outlet valve opens, allowing material to be
pumped. There are three sections to the pump head unit.
ALWAYS ASSEMBLE THESE SECTIONS PRIOR TO
MOUNTING PUMP HEAD UNIT ON FRAME, MAKING SURE
THE SEAL RINGS FIT UP AIRTIGHT.
If hoses or lines are
if lines are
pumping cycle, the pump pressure could
straighten out the kink or force out the blockage.
The rapid surge of material could cause the lines
kinked
blocked
when starting up or during
for any reason, or
visually inspect
for any
PAGE 18 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
MG-30 PUMP — GENERAL INFORMATION
Main Bearings
The two main crankshaft bearings are sealed bearings. These
bearings should be greased about every two days of pump
operation. Any good lithium base grease is acceptable. Too much
grease cause the bearings to overheat.
Rocker Arm Shaft
The two rocker arms have bronze bearings. These bearings
should be greased
Rod Ends
Each piston rod and connecting rod from the crankshaft has a
roller bearing. Lubricate these four roller bearing daily with lithium
base grease.
NOTE
Cylinders
The cylinder walls do not wear to any degree. Care should be
taken not to damage the surface on the ends of the cylinders as
this will cause an air leak between the end of the cylinders and
the pump housing.
NOTE
every day
of operation.
Daily lubrication of the roller bearings
(except main bearing) will prevent any
dirt and foreign matter from entering the
bearings.
NEVER!
pump. The cylinder bore is
plated
chrome.
use
muriatic acid
to clean the
chrome
. Muriatic acid will dissolve the
The rubber check balls are components of the pump that will
wear quite
high pressure
balls. The rubber check balls can last anywhere from a week to
2 or 3 days depending on the pumping pressure. Jamming the
pump or running the pump at a very high pressure may split the
rubber check balls.
NOTE
Steel Check Ball
Steel check balls are used in
they form a water tight seal at the valve seat. This prevents the
check valve from packing due to separation at the valve.
Leather Piston Cup
The piston, which is held to the push rod by a nut, consists of
several parts made of various materials with close tolerances,
having as the center a
cup is in constant contact with the cylinder and the material and
it wipes clean the cylinder on each stroke, thereby preventing
damage to the cylinder. When the machine is shut down, the
piston cups should be periodically inspected and replaced if
frayed or damaged.
The leather piston cups will outwear the rubber balls. The leather
piston cups as well as the rubber balls can be damaged
prematurely if exposed to
jamming of the pump.
rapidly
and must be replace frequently.
is the main cause of wear to the rubber check
When replacing either rubber check ball,
always
of wear. Make sure the o-rings and
associated parts are clean and free of
dirt when the rubber check valve is
reassembled.
inspect the other ball for signs
fireproofing
applications, because
pre-lubricated leather piston cup
excessive pump pressure
Excessive
. This
or
Leather Piston Lubrication
Pump Housing
There are 3 sections to the pump housing,
housing
are held together with "T" slot bolts and are aligned to each
other with guide rings on the flange surface.
Always assemble these 3 sections into a complete unit before
placing it on the pump. It is important that when the pump housing
unit is placed on the pump that all of the gaskets and o-rings are
aligned properly with an air tight fit.
Rubber Check Ball
Rubber check balls (not steel) are used in
applications, because they form a water tight seal at the valve
seat. This prevents the check valve from packing due to
separation at the valve.
(center), and
MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 19
crossover housing
hopper elbow, main
. These 3 housings
plaster
and
stucco
Due to the close tolerance of the piston to the cylinder, the piston
is equipped with a felt ring to keep the cylinder constantly
lubricated for increased life. The felt ring is lubricated through
the oiler fitting and tubing installed at rear of piston.
The oiler tank is mounted adjacent to the fuel tank. The
should be checked regularly
if necessary, with a good grade of S.A.E. 20W or 30W motor oil.
Oiler tank capacity is 1.5 quarts (.709 liters).
With the engine running, open needle valve (located below oil
tank) very slightly. Oil should flow for approximately 5 minutes
before pumping material. This will allow oil to reach and penetrate
the felt ring. Opening the valve too far will cause oil to flow
excessively. Close the valve when the machine is not in use to
prevent all the oil draining from the tank.
oil level
during operation and tank filled,
MG-30 PUMP — GENERAL INFORMATION
O-Rings
O-Rings have been installed at sealing points throughout the
pump head unit. These O-rings act as seals and are very
important for the efficiency of the machine. Great care should be
taken when assembling or disassembling those parts where “O”
rings have been installed. Always clean O-ring groove thoroughly
grease O-ring before installing.
Inspection of O-rings should be made regularly. It should be
done each time a part containing an O-ring has been
disassembled. Carefully remove and check O-ring to see it is
not chipped, broken, peeled or has any other signs of deformity.
If any of these conditions exists, the O-ring should be replaced.
Pump Overloading
If at any time the pump is jammed from separation or a sand
pack in the hose, the clutch on the engine will slip. This will
protect the moving mechanical parts of the pump from being
overloaded and damaged. The capability allows the pump to
shut itself down in the event an operator is not near pump if a
sand pack or jam-up occurs.
When the drive belt is moved from the largest pulley on the
clutch to the smallest, the output power of the pump is increased
by a factor of three. So, when operating the pump at the lower
speed, the RPM of the engine should also be reduced. This will
allow the clutch to slip in the event of a separation or sand pack,
and therefore will safeguard the hoses and the mechanical
working parts of the pump from damage.
USE ONLY "O-RINGS" OBTAINED
NOTE
Valve Seats
The valve seats are a loose fit in the pump housing. There are no
set screws holding them in place. When the valve seat has been
worn to a point where a
the valve seat (keeping the ball from seating properly), the valve
seat should be replaced.
Sand Packs
Washed sand left in the material hose can cause a sand pack
(clog) in the hose. When the material hose is washed out, make
sure all of the loose sand is washed out of the hose. If loose sand
is allowed to remain in the hose, the new material coming through
the hose will push the sand ahead until it forms a clog in the
hose.
Separation
Separation in the pump or the material hose is caused by water
being forced out of the material through a loose connection.
Make sure that none of the gaskets or o-rings in the pumping
system leak. Loose hose connections are one of the most
common causes of separation.
Whenever water leaks out through a hose connection, the
material will build up slowly. In an hour or so, depending on how
bad the leak, a restriction will form at the connection causing the
pump to work much harder to force the material through the
restriction. This also slows down the output production of the
pump. If this condition is not corrected, the pump will jam and
stop.
FROM THE FACTORY
manufactured of a special hardened
rubber to meet this specific application.
new
rubber check ball strikes the bar in
, as they are
NOTE
hoses when the pumping of stiff materials is required. Make sure
that all hoses are in good condition and that all connections are
air tight. When using the lower pumping speeds, run the engine
at a lower speed.
Leaks
Water can become separated from the material being pumped.
This is usually caused by loose connections or damaged seals.
When separation occurs, a restriction caused by a buildup of
material around the leak forces the pump to work harder. As a
result, pump output is lowered and eventually the pump will
stop.
Hose and Fittings
Due to the high pressure which the machine is capable of
producing we recommend the use of specially constructed
MAYCO hose. This hose has been designed to withstand the
pressures required to pump the material.
MAYCO hoses are available in 25 ft. and 50 ft. lengths. Each size
is equipped with a male insert on each end.
It is suggested to use all 2-inch (5.08 cm.) hose with the exception
of the last 25 or 50 ft. This should be 1.5 inch (3.81 cm.) hose, to
be used as a whipline.
Wheels
The machine is equipped with
rotating on tapered roller bearings. These bearings have been
packed at the factory and need not be repacked for approximately
6 months, at which time they should be removed, cleaned and
repacked with a good grade of wheel bearing grease.
Operating the pump at lower speeds
(placing the drive belt in either of the two
pulley groves next to the engine) will
develop high pressure in the material
pneumatic (air) type wheels
,
PAGE 20 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
MG-30 PUMP — GENERAL INFORMATION
Reducers
sizes of hose.
Air Compressor
Your plaster and mortar pump is equipped with a piston type
Quincy Air Compressor
This air compressor supplies air to the nozzle for spraying of
material.
Factors Affecting Hose Pressure
Stiffness of the mix is the most important factor affecting hose
pressure. There are others, however, that can be equally
important.
1. Hose Length – Pressure varies directly with the length of
2. Hose Size – The pressure required to pump material
3. Gypsum – In using gypsum plaster a rich mix (such as
4. Binders – Some binders for plaster take more pressure
5. Aggregates – The most familiar types of aggregate are
and
unions
NOTE
the hose. The pump must develop twice as much pressure
with a 100-ft. length of hose as it does with a 50-ft. length.
through a hose varies with the area of the hose. Thus, if the
pressure required for a length of 2-inch diameter (5.08 cm.)
hose is 300 pounds (136 Kg.), the pressure required for
the same length of 1.5-inch diameter (3.81 cm.) hose would
be over 500 pounds (227 Kg.) using the same pumping
rate.
2:1) will take more pressure to pump than a leaner mix. In
a 2:1 mix you will probably have to make your mix
somewhat softer than a 3:1 mix.
than others. A plaster using gypsum will require the most
pressure. Portland Cement pumps quite easily with a
minimum of pressure, as does clay or lime.
sand, vermiculite, perlite
has its own characteristics. As most sand absorbs very
little water, it is the easiest with which to control the
consistency of materials.
other hand, absorb considerably
under pressure, as do most perlites. Therefore, in the latter
cases, whether the binder is gypsum or
your mix must be somewhat softer.
NOTE
are available for connecting the various
Connecting material hoses by means of
any type of quick coupling device is
recommended because they generally
do not have an adequate pressure rating
and are hazardous.
, driven by V-belts from the engine.
and
zonolite
vermiculite or zonolite, on the
. Each one of these
more water
when pumped
Portland Cement
All materials being pumped become
stiffer, when applied under pressure.
Therefore, the mix at the machine must
be softer than if it were taken from the
mixer for hand application.
Effect of Hose Pressure On Height
When elevating a plaster containing gypsum and light weight
aggregate add about one-half pound per square inch to the
not
required horizontal pump pressure for every foot you elevate the
nozzle above the Mayco Model MG-30 plastering unit. This
additional pressure is generally not serious because you will
probably be running between 1 and 2 lbs. per square inch per
foot to overcome friction in the hose.
.
As an example, if you were using a 40 ft. (12 meters) hose with a
pressure of 1-1/2 psi per foot or a total of 60 psi when plastering
a wall, and you sprayed a 20 ft. (6 meters) ceiling, you would only
increase the pressure 10 lbs. (4.53 Kg.) or have a total of 70 lbs. (32
Kg.) pump pressure. If you wanted to spray a 40 ft. (12 meters)
ceiling and needed another 40 ft. (12 meters) of hose, your pump
pressure would be:
NOTE
Nozzle
The MAYCO spray nozzle is constructed of a lightweight material.
It has been designed with a removable cap for changing to various
size orifices and is also equipped with an atomizer for variance
in spray patterns.
The output from the spray nozzle can be controlled to supply a
volume from zero to 4.5 cu. ft. per minute. Because of this
considerable range in volume, the orifice in the nozzle must be
changed to fit the desired volume in order to obtain a good pattern.
In most cases a 5/8-inch (1.58 cm.) orifice will give a good pattern
in most browning or scratching applied to paperback wire. On
metal lath you should use as large an orifice as possible and
lower the air pressure. In most cases the air jet should be set
,
back from the orifice 1/2 to 5/8 inch (1.27 to 1.58 cm.). You will
find an air valve at the nozzle to control the air pressure.
First 40 feet @ 1-1/2 psi/ft. .............60 psi
Second 40 feet@ 1-1/2 psi/ft. ......... 60 psi
Elevation pressure 40 psi/2 ........... 20 psi
Total pump pressure .......140 psi
Material hose, steel delivery line and
couplings are available in various
pressure ratings when
and
tear
wear
calculated pressure rating.
will reduce the above
new. Age
MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 21
MG-30 PUMP — GENERAL INFORMATION
To change from a fine texture to a heavy browning pattern, follow
these steps:
1. Lower the air pressure.
2. Change to a larger size orifice.
3. Set the air jet farther back from the orifice.
4. Increase the volume of material.
To increase nozzle frequency and obtain small plaster globules,
reverse the above procedure.
How the Nozzle Operates
With the machine running at a rate to brown 80 square yards 1/2"
thick, you should use a 1/2-inch (1.27cm.) orifice and the distance
from the air stem to the orifice would be 3/8-inch (.952 cm.). To
scratch metal lath at the same pumping speed, you would set the air
stem from 1/2 to 5/8-inch (1.27 to 1.58 cm.) from the orifice, and you
would probably use a 5/8-inch (1.58 cm) orifice.
When adjusting the air pressure, it is desirable to get a good
even pattern in the spray. If the air pressure is too high, the plaster
will rebound from the wall. If the air pressure is too low, the spray
pattern will be very narrow and plaster cannot be sprayed on
‘evenly. Adjust air pressure at nozzle to obtain the desired pattern.
Since the operator feels little or no pulsation when running the
Mayco Model MG30 plastering unit, it would appear that plaster
comes from the nozzle in a steady stream. Actually, in operation,
a globule of plaster comes from the nozzle and is then followed
by a globule of compressed air.
ESSICK MIXER
The Essick Model EM120SM
shipped completely assembled and has been factory tested.
The drum batch capacity of these mixers is between 3.5 and
4.0 bags. With proper care, they will give continuous service
year-after-year.
This mixer is powered by a
engine. The power from the engine is transmitted via a clutch/
reduction assembly that is coupled directly to the paddle shaft.
Therefore providing high mixer torque and eliminating V-belts .
BEFORE STARTING
Before starting the engine, read the engine
owners manual and thoroughly understand the
safety information.
OIL LEVELS
Be sure to check the oil levels in the engine and transmission
before starting the mixer.
DIESEL ENGINE CARE
For care and operation of either
engine manufacturer’s operating instructions furnished with the
engine. We recommend draining and refilling the engine
crankcase at least every thirty hours of operation. Check the
engine oil level daily.
plaster
HATZ
HATZ
and mortar mixer is
Model 1B30, 8.0 HP
diesel engine, refer to the
diesel
The Mayco nozzle can be operated with as few as 50 plaster
globules per second, or a frequency of 50 cycles per second,
and as high as 1,000 cycles per second with the pump operating
at a constant volume.
When the nozzle is emitting 50 plaster globules per second,
each globule is 20 times the size of the plaster globules emitted
when the nozzle is set for 1000 plaster globules per second.
Here lies the basis for the various applications of the Mayco
Model MG30.
For example, when a fine texture is desired, the nozzle should
operate at a high frequency to break the plaster up into small
particles. In scratching metal lath, it is desirable to produce large
plaster globules that will adhere to the metal lath. Difference in
frequency can be detected by the sound of the nozzle in
operation. When the sound at the nozzle is high, almost at a
scream like pitch, the frequency is high and the globule size is
small.
PAGE 22 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
How It Works
MG-30 PUMP — APPLICATION
Mayco Plaster Pump,
The
materials at a steady rate of flow. This is done by using two
cylinders. The crank powered pumping cylinder does all of the
pumping. The cam powered slave cylinder is a compensating
cylinder and operates in a manner which causes the pulsating
material from the pumping cylinder to be pumped at a steady
rate of flow. The slave cylinder will not move until enough pressure
is developed to produce this steady rate of flow.
Model MG-30 designed to pump
As shown in Figure 5, the pumping cylinder retracts drawing
the material past the ball A and filling the cylinder. The slave
cylinder is pumping the material out to the nozzle and
causing ball
to the pumping cylinder intake.
HOPPER
B
to seat
PUMPING
CYLINDER
INTAKE
preventing the material from returning
B
SLAVE
CYLINDER
INTAKE
A
DISCHARGE
Figure 5. Pumping Cylinder (Discharge)
MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 23
MG-30 PUMP — APPLICATION
The pumping cylinder (Figure 6) is forcing the material past
ball B and out to the nozzle, also
material will not flow back to the hopper. This action also
fills the slave cylinder for the next stroke.
seating ball
A so that the
NOTE
HOPPER
PUMPING
CYLINDER
PUMPING
B
The slave piston will not move until
enough pressure is developed to
produce a steady rate of flow.
SLAVE
CYLINDER
INTAKE
A
N0
DISCHARGE
Figure 6. Pumping Cylinder (No Discharge)
PAGE 24 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
MG-30 PUMP — APPLICATION
Pressure Relief Valve (Automatic)
Purpose
To provide the capability that will
pressure in a material hose or line whenever the flow of material
is restricted for any reason, causing unsafe pressure to build up
in the hose or line.
Safety Valve Placement (Automatic)
Place the automatic safety valve at the outlet side of the plaster
pump, ahead of the hose connection. This automatic safety valve
is to be used in conjunction with the manual release mechanism
(
safety relief pressure plug
Theory of Operation
Located on the
(Figure 7), is a pipe nipple with an opening which is sealed off
with a rubber ball that is held against the opening with a
cap
.
It is the responsibility of the pump operator to ensure that the
delivery hose and line system with all clamps and accessories
have a higher pressure rating than the safety cap being used.
bottom
of the
automatically
).
release the
safety relief pressure valve
brass
NOTE
NOTE
Suggestion:
DO NOT use a 1000 psi cap if your pumping requirement is less
than 750 psi.
system pressure.
The rubber ball will stay in place until an excessive amount of
pressure occurs that will cause the ball to
opening (Figure 8) in the brass cap and release the pressure in
the hose or line.
Always
NEVER place the MG-30 into
operation without a safety relief
pressure valve with a manual
release control installed on the
pump discharge.
ALWAYS
safety valve
prevent the ball from striking
someone and possibly causing
injury.
use a cap that is rated less than the total
point the brass cap on the
downward
blow
. This will
out through the
Figure 8. Safety Relief Pressure Valve
(Rubber Check Ball Release)
Figure 7. Safety Relief Pressure Valve
(Automatic Mode)
MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 25
MG-30 PUMP — APPLICATION
Pressure Relief Plug (Manual Operation)
Purpose
To provide the capability that will
in a material hose or line whenever the flow of material is restricted
for any reason, causing unsafe pressure to build up in the hose
or line.
Safety Valve Placement (Manual)
Place the
discharge side of the plaster pump, ahead of the hose connection.
Located on the pressure relief valve is a
release plug
a steel clamp (
downward
This manual pressure release plug is to be used in conjunction
with the automatic release mechanism (
safety relief pressure valve
(manual activation), the plug is held in position by
yoke) and is
to release the pressure in the system.
manually
activated by pulling the lever
ALWAYS
NOTE
release plug before disconnecting
any part of the delivery hose, line or
clamp system.
release the pressure
(Figure 9) at the
rubber pressure
rubber check ball
open the manual pressure
Before activating the manual pressure release
must
do the following:
1. Stop the engine.
2. Warn all workers and bystanders to stand at least 20 feet
away from the pump and turn their heads away from the
pressure relief safety valve.
3. The operator shall position himself/herself beside the
pressure relief safety valve with his/hers back to the
pump.
4. Wearing safety glasses, reach down with one hand, grasp
the release lever on top of the safety valve.
5. Turn head away from the pressure release plug and lift lever
upwards (open)
6. Remain facing away from the pressure relief valve until
).
counting up to 20, slowly. By that time, the material ejecting
under pressure will be slowly discharging. Work can resume
only after the material has been discharged for a minimum
of 20 seconds.
7. After correcting the problem that caused the excess pressure
in the system line, close the safety plug by pushing the plug
open/close lever
ing.
.
downward (
closed), and resume pump-
plug
the operator
Anytime it is necessary to uncouple or remove any part of
the delivery system, the manual pressure release plug must
be opened to relieve pressure in the system.
Figure 9. Rubber Safety Relief Pressure Plug
PAGE 26 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
MG-30 PUMP — MIXER MAJOR COMPONENTS
2
1
3
4
8
7
5
5
6
12
7
Figure 10 illustrates the major components and controls of
the mixer.
13
9
10
11
Figure 10. Mixer Major Components
1. Mixing Drum — Made of
steel
. Mixing materials such as
8. Clutch Lever — Push the clutch lever
concrete, mortar, plaster are to be placed into this drum for
mixing. Always clean the drum after each use. Drum
capacity is 12 cu. ft.
2. Mixing Paddles — Used in the mixing of material. This
9. Dump Handle — Pull this handle downward to dump the
unit uses four different types of paddles to provide a fast
uniform mix.
3. Bag Cutter— This feature allows compound mixing bags
10. Pivot Point/Zerk Fitting — There is, on each end of the
to be opened easily, therefore allowing the contents of the
bag to fall directly into the mixing drum. Bag capacity is 3.5
to 4 bags.
4. Transmission — Totally inclosed oil bath transmission.
12. Safety Grill Lock Handle — To prevent injury to hands
5. Engine Cover — Lift this cover to gain access to the engine
and transmission compartments.
6. Engine — The mixer unit is powered by a Hatz Model
IB30, 8.5 HP
diesel
engine. See page 30 for engine
component definitions.
13. Safety Grill — Provided for operator safety. This safety grill
7. Engine Cover Grip — Place hand inside grip then lift
upwards to raise cover. When lifting of the cover is required
make sure both rubber bunjee latches have been released.
8. Rubber Latch — Use this latch to secure the engine
compartment cover.
forward
, toward
the tow (tongue) end of the mixer to engage clutch. Once
clutch is engaged paddle shaft will rotate. To disengage
clutch pull the clutch
backwards
towards the engine.
contents of the drum. Push the handle upward to return the
drum to its vertical position.
mixing drum a zerk grease fitting. These fittings lubricate
the dumping mechanism. Lubricate both fittings at least
twice a week.
and arms, the safety grill should ALWAYS be locked when
the mixing of plaster or mortar is required. Also when
transporting the mixer the safety grill should be locked. The
safety grill should only be un-locked when cleaning of the
blades and drum is required.
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 pump is in use. DO NOT remove the grill or
grill opening bar. Keep the grill clean by washing it down
daily.
MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 27
MG-30 PUMP — MG30 M2D MAJOR COMPONENTS
Figure 11 illustrates the major components and controls of
the MG-30 (Mobil Unit).
2
3
4
12
5
13
6
MG30-M2D
7
9
11
8
10
1
Figure 11. MG-30 Major Components
22
23
24
14
15
16
19
20
17
21
18
26
25
PAGE 28 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
MG-30 PUMP — MG30-M2D MAJOR COMPOUNDS
1. Manifold — Cast steel manifold, 2 in. (5.08 cm.) for plaster,
3 inch (7.62 cm.) for fireproofing. This manifold is designed
with a
manual pressure relief valve
safety pressure relief valve
2. Tires — This trailer uses two ST205-750 x14C type tires.
Tire inflation pressure is the most important factor in tire
life. Pressure should be checked to
operation. DO NOT bleed air from tires when they are hot.
Check inflation pressure weekly during use to insure the
maximum tire life and tread wear.
3. Mixer — This unit uses a "
and
plaster mixer
definitions.
4. Oiler — Cam bearing oiler. Fill with SAE 20 or 30 wt. motor
oil. Lubricates cam surface.
5. Fuel Gauge/Fuel Cap — Read the top of this cap to
determine if the fuel level is low. If fuel level is low, remove
cap to add #2 diesel fuel.
6. Gear Reduction Pulley — This is an adjustable 4-groove
pulley. Select the pulley speed that fits your pumping
requirement.
. See page 27 for mixer component
rated between 700-1000 PSI.
Essick
and an
automatic
50 psi cold
" mechanical 12 ft3
before
mortar
14. Piston Oiler Tank— Fill this tank to the "
15. Lubrication Port Panel — Central grease panel. All
16. Hopper — This unit uses a galvanized hopper which can
17. Mixer End Jack Stand – Use this jack stand to level
18. Lubrication Box Access Cover – There are four access
19. Gear Reduction Adjustment Bolt – Loosen this bolt to
20. Battery – This unit uses a +12 VDC type battery.
FULL
" level for
normal operating conditions. Check regularly. Fill with SAE
30 wt. type motor oil. Oiler tank capacity is 1-1/2 quarts (1.14
liters).
lubrication points can be accessed via this panel. Allows
lubrication of all bearings without lifting the hood.
hold up to 12.0 cu. ft. (340 liters) of mix. NEVER put hands
or any other parts of you body into the hopper.
and support the pump.
covers on the pump. Remove these doors to gain access to
drive and piston assemblies when maintenance is required.
pivot the gearbox assembly upwards or downwards. This
will allow for the placement of the V-belt on one of the four
pulley grooves.
ALWAYS
use gloves and eye protection when handling the battery.
7. Compartment Hood Lift Handles — There are two
compartment hood lift handles located on each side of the
hood. Grip handle and pull upwards to lift hood.
8. Compartment Hood — This hood encloses the engine,
compressor, gear reduction pulley, reduction gearbox,
battery, control box and other associated components
required to operate the pump.
with the hood in the up position.
9. View Access Window — This opening allows the user to
start the unit and have access to the control box without
lifting the compartment hood.
10. Access Cover/Handle — Turn this handle clockwise to
release latch, then lift upwards. When this cover is in the
open position it will provide a more free flow of air to help
keep the engine and associated components cool.
11. Documentation Box — Contains information regarding
the pump and mixer.
12. Speed Reduction Gearbox — A constant-mesh type and
total enclosed gearbox with all gears immersed in oil. Fill
with SAE 90 wt. motor oil.
proper operating level.
13. Engine Control Box — Contains the engine ignition
switch, operation switch, engine status LED's (5), hour meter,
remote control connector and 25 amp fuse.
NEVER!
ALWAYS
operate the pump
keep gearbox oil at
21. Air Compressor – This unit uses a piston type
22. Throttle Control Knob – This is a variable speed type
23. Engine – This unit uses a
24. Tow End Jack Stand – Use this jack stand to level and
25. Tow Hitch Coupler – Requires a 2-inch ball hitch or a
26. Chock Blocks – Place these blocks (not included as
Quincy
Air Compressor
air compressor supplies air to the nozzle for spraying of
material. The compressor has an output of 10 CFM @ 100
psi. A weekly check should be made of the crankcase oil
level to make sure it is at the
the two marks on the dipstick.
control. Turning the throttle lock (CCW) left unlocks the
throttle allowing the throttle control cable to be pulled out to
the desired position. Once the desired throttle position
(speed) has been achieved, turning the throttle lock to the
(CW) right locks it in place. Use the fine tune adjustment
knob to fine tune the engine rpm's.
To place the engine in idle, press the top button inward all
the way.
cooled diesel engine. See page 31 for engine component
definitions.
support the pump.
pin. Capable of towing 5,000 lbs.
part of your concrete pump package) under each wheel
to prevent rolling or when parked on a slope.
, driven by V-belts from the engine. This
full mark
HATZ
, or at least between
Model 2M4LZ, 35 HP air
MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11) — PAGE 29
MG-30 PUMP — HATZ 8.5 HP ENGINE COMPONENTS
Figure 12. Hatz Model 1B30 8.5 HP Diesel Engine
INITIAL SERVICING
The
mixer's
lubrication and filled with fuel prior to operation. Refer to the
manufacturers Engine manual for instructions & details of operation
and servicing.
1. Fuel Filler Cap/Fuel Tank – Pull this latch to add
fuel to the tank. After refueling, always make sure the fuel
cap is latched properly. DO NOT over fill. For additional
information refer to engine owner's manual.
engine (Figure 12) must be checked for proper
diesel
WARNING
Adding fuel to the tank should be accomplished 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. Engine Lifting Straps/Cover – Remove the air cleaner
cover, then lift this cover (the one with decals on it) to gain
access to the engine lifting straps.
3. Air Cleaner/Cover – Prevents dirt and other debris from
entering the fuel system. Remove wing-nut on side of air
filter cover to gain access to filter element.
4. Speed Control Lever – This lever is connected to the
throttle control which is located on the side of the engine
compartment cover. Use this lever to control engine speed.
5. Dip Stick – Remove dipstick to determine if the engine oil
level is low. If low add oil as specified in Table 4, page 14.
6. Engine Motor Mounts – Attach these engine mounts to
the mixer frame. Tighten securely.
7. Oil Filter – Remove this bolt to gain access (internal) to the
engine oil filter. Service the oil filter as recommended in the
maintenance section of this manual.
8. Oil Drain Plugs – There are two oil drain plugs, one is
underneath the flywheel, the other on the side of the engine.
Remove these plugs to drain engine oil from the engine
crankcase.
9. Crankshaft – Connect this shaft to the input of the
transmission.
10. Muffler – Used to reduce noise and emissions.
11. Nameplate – Contains information about the engine.
while the engine is running or immediately after operating. NEVER
operate the engine with the muffler removed.
NOTE
WARNING
Engine components can generate extreme heat.
To prevent burns, DO NOT touch these areas
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 30 — MAYCO MG-30 PUMP — OPERATION AND PARTS MANUAL — REV. #3 (09/15/11)
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