Multiquip MT74F User Manual
OPERATION AND PARTS MANUAL
SERIES
MODEL MT-74F
TAMPING RAMMER
(ROBIN GASOLINE ENGINE)
Revision #12 (11/08/07)
To find the latest revision of this
publication, visit our website at:
www.multiquip.com
THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.
PAGE 2 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
TABLE OF CONTENTS
Multiquip Tamping Rammer
MT-74F
Proposition 65 Warning ......................................... 2
Table Of Contents ................................................. 3
Parts Ordering Procedures ................................... 4
Safety Message Alert Symbols .......................... 5-6
Rules For Safe Operation .................................. 7-8
Operation and Safety Decals ................................ 9
General Information ............................................ 10
Specifications ...................................................... 11
Controls and Components .................................. 12
Basic Engine ....................................................... 13
Operation .......................................................14-16
Maintenance ....................................................... 17
Troubleshooting Guide ...................................18-19
Explanation Of Codes In Remarks Column ........ 20
Suggested Spare Parts ....................................... 21
Name Plate and Decals ................................. 22-23
Crankcase and Engine Assembly ..................24-27
Guide Cylinder and Foot Assembly ...............28-29
Tank and Handle Assembly ........................... 30-33
ROBIN EH-12-2D46051 ENGINE
Crankcase and Cylinder Assembly ................ 34-35
Crankshaft and Piston Assembly ...................36-37
Muffler, Air Cleaner, Camshaft,& Carb. Assy. .38-39
Governor Assembly .......................................40-41
Recoil Starter and Blower Assembly ............. 42-43
Magneto Assembly ........................................44-45
Carburetor Assembly .....................................46-47
Terms and Condition Of Sale
NOTE
Specification and part number are
subject to change without notice.
— Parts ................ 48
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 3
r
PARTS ORDERING PROCEDURES
Ordering parts has never been easier!
Choose from three easy options:
Effective:
January 1st, 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 Par ts
to log in and save!
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)
Order via Phone:
Non-Dealer Customers:
Contact your local Multiquip Dealer for
parts or call 800-427-1244 for help in
locating a dealer near you.
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
on
Standard orders
and qualify for a 5% Discount
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
their local Multiquip Representatives for
Parts Ordering information.
Note: Discounts Are Subject To Change
Note: Discounts Are Subject To Change
should contact
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www.multiquip.com
PAGE 4 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
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
All orders are treated as
and will ship the same day if received prior
to 3PM PST.
WE ACCEPT ALL MAJOR CREDIT CARDS!
❒
❒❒
Standard Orders
Specify Preferred Method of Shipment:
✓
UPS/Fed Ex
■
Priority One
■
Ground
■ Next Day
■
Second/Third Day
✓ DHL
✓
Tr u ck
MT-74F — 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 this rammer, 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,
operation of the MQ Mikasa, Model
MT-74F Tamping Rammer. Refer to
the engine manufacturers instructions
for data relative to its safe operation.
HAZARD SYMBOLS
Potential hazards associated with the operation of a
Tamping Rammer
which appear throughout this manual, and will be referenced
in conjunction with Safety Message Alert Symbols.
Engine exhaust gases contain
poisonous carbon monoxide. This gas
is colorless and odorless, and can
cause death if inhaled. NEVER operate
this equipment in a confined area or
enclosed structure that does not provide
ample free flow air.
Gasoline is extremely flammable, and
its vapors can cause an explosion if
ignited. DO NOT start the engine near
spilled fuel or combustible fluids.
will be referenced with Hazard Symbols
Lethal Exhaust Gases
WARNINGWARNING
WARNING
WARNINGWARNING
WARNINGWARNING
WARNING
WARNINGWARNING
Lethal Exhaust Gas Hazards
Explosive Fuel Hazards
MT-74F
DANGERDANGER
DANGER
DANGERDANGER
You WILL be
if you DO NOT follow these directions.
WARNINGWARNING
WARNING
WARNINGWARNING
You CAN be KILLED or
you DO NOT follow these directions.
CAUTICAUTI
CAUTION
CAUTICAUTI
You CAN be
these directions.
KILLED
INJURED
if you DO NOT follow
or
SERIOUSLY INJURED
SERIOUSLY INJURED
if
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.
WARNINGWARNING
WARNING
WARNINGWARNING
Engine components can generate extreme
heat. To prevent burns, DO NOT touch
these areas while the engine is running or
immediately after operations. Never
operate the engine with heat shields or heat
guards removed.
WARNINGWARNING
WARNING
WARNINGWARNING
ALWAYS wear approved
protection when required.
Burn Hazards
Respiratory Hazards
respiratory
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 5
MT-74F — SAFETY MESSAGE ALERT SYMBOLS
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
NEVER operate equipment with covers,
or guards removed. Keep fingers, hands,
hair and clothing away from all moving
parts to prevent injury.
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
ALWAYS place the ON/OFF switch in
the OFF position when the rammer is
not in use.
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
ALWAYS wear approved eye and
hearing protection.
Rotating Parts Hazards
Accidental Starting Hazards
Eye and Hearing Hazards
CAUTIONCAUTION
CAUTION
CAUTIONCAUTION
Other important messages are provided throughout this
manual to help prevent damage to your light tower, other
property, or the surrounding environment.
Equipment Damage
Hazards
DANGERDANGER
DANGER
DANGERDANGER
NEVER refuel rammer when placed in truck bed with
plastic liner. The possibility exists of explosion due to static
electricity. When adding fuel, remove rammer from truck
bed and place on ground.
Refueling Hazard
PAGE 6 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — RULES FOR SAFE OPERATION
■
DANGERDANGER
DANGER
DANGERDANGER
Failure to follow instructions in this manual may lead
to serious injury or even death! This equipment is to
be operated by trained and qualified personnel only!
This equipment is for industrial use only.
Read this manual!
NEVER touch the hot exhaust
manifold, muffler or cylinder. Allow
these parts to cool before servicing
engine or rammer.
The following safety guidelines should always be used when
operating the MT-74F Tamping Rammer:
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 of
drugs
or
alcohol
.
■
High Temperatures – Allow the engine to cool before
adding fuel or performing service and maintenance
functions. Contact with
burns.
■
The engine section of this rammer requires an adequate
free flow of cooling air.
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 rammer or engine and
may cause injury to people.
Remember the rammer's
engine gives off
carbon monoxide gas.
■
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. DO NOT
or near the machine. Fire or explosion
could result from fuel vapors, or if fuel
is spilled on a hot engine.
hot!
NEVER
DEADLY
smoke
components can cause serious
operate the rammer in
around
■
■
ALWAYS wear proper respiratory (mask),
hearing and eye protection equipment when
operating the rammer.
■
Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.
■
Manufacturer does not assume responsibility for any
accident due to equipment modifications.
■
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.
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 7
■
■
■
■
NEVER operate the rammer in an
explosive atmosphere or near
combustible materials. An explosion or fire could result
causing severe
DO NOT
machine. Fire or explosion could result
from fuel vapors, or if fuel is spilled on a
hot engine.
Topping-off to filler port is dangerous, as it tends to spill
fuel.
Stop the engine when leaving the rammer unattended.
Maintain this equipment in a safe operating condition at
all times.
bodily harm or even death.
smoke
around or near the
MT-74F — RULES FOR SAFE OPERATION
■
ALWAYS stop the engine before servicing, adding fuel and
oil.
■
NEVER run engine without air filter. Severe engine may
occur.
■
ALWAYS service air cleaner frequently to prevent carburetor
malfunction.
■
ALWAYS check the machine for loosened threads or bolts
before starting.
■
ALWAYS be sure the operator is familiar with proper safety
precautions and operations techniques before using rammer.
■
ALWAYS store equipment properly when it is not being used.
Equipment should be stored in a clean, dry location out of
the reach of children.
■
DO NOT operate this equipment unless all guards and
safety devices are attached and in place.
■
CAUTION must be exercised while servicing this equipment.
Rotating and moving parts can cause injury if contacted.
■
Keep all
from the equipment at all times.
■
Unauthorized equipment modifications will void all
warranties.
■
NEVER pour or spray water over the engine.
■
Test the engine ON
purpose of this switch is to shut down the engine of the
rammer.
■
Refer to the
technical questions or information recommended by
Multiquip for this equipment.
TRANSPORTING
inexperienced
and
unauthorized
/OFF
switch before operating. The
people away
ROBIN Engine Owner's Manual
for engine
MAINTENANCE
■
■
■
■
■
■
EMERGENCIES
■
■
NEVER lubricate components or attempt service on a
running rammer.
ALWAYS allow the rammer a proper amount of time to
cool before servicing.
Keep the rammer in proper running condition.
Fix damage to the rammer 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
In emergencies
the nearest phone or
site
. Also know the phone numbers of the
nearest
department
in the case of an emergency.
and first aid kit.
always
know the location of
keep a phone on the job
ambulance, doctor
. This information will be invaluable
and
fire
fire
■
ALWAYS shutdown engine before transporting.
■
Tighten fuel tank cap securely and close fuel cock to
prevent fuel from spilling.
■
Drain fuel when transporting rammer over long distances
or bad roads.
■
When placing the rammer inside a truck-bed for transport,
always tie-down the rammer
PAGE 8 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — OPERATION AND SAFETY DECALS
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 9
MT-74F — GENERAL INFORMATION
Definition of Tamping Rammer
The Mikasa MT-74F tamping rammer is a powerful compacting
tool capable of applying a tremendous force in consecutive
impacts to a soil surface. Its applications include soil compacting
for road, embankments and reservoirs as well as backfilling for
gas pipelines, water pipelines and cable installation work.
The impact force of the MT-74F levels and uniformly compacts
voids between soil particles to increase dry density.
Circular motion is converted to create impact force. The MT-74F
tamping rammer develops a powerful compacting force at the
foot of the rammer. To maintain optimum performance, proper
operation and service are essential.
Construction of Tamping Rammer
The Mikasa MT-74F is equipped with an air cooled, four-cycle
gasoline engine. Transmission of the power takes place by
increasing the engine speed to engage the centrifugal clutch.
Rammer Gearbox and Spring Cylinder
The Mikasa MT-74F uses an oil bath lubrication system. Always
check the oil level through the oil level sight glass at the rear of
the tamper foot.
Controls
Before starting the MT-74F Tamping Rammer identify and
understand the function of the controls. See Figure 1.
PAGE 10 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — SPECIFICATIONS
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Specifications are general and are subject to change without notice. If exact
measurements are required, equipment should be weighed and measured.
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 11
MT-74F — CONTROLS AND COMPONENTS
Figure 1. MT-74F Rammer
Figure 1 shows the location of the controls and components
for the MT-74F Tamping Rammer. The functions of each
control is described below:
8. Foot – Laminated wood with tempered steel plate for
superior shock absorption.
9. Oil Level Sight Glass – Indicates the level of oil in the oil
bath reservoir.
1. Throttle Lever – Controls engine speed and the tamping
action of the rammer.
2. Engine Stop Switch – Controls the starting and stopping
of the engine. Switch must be in the "ON" position when
starting the engine.
3. Choke Lever – Used when starting the engine. Normally
used in cold weather conditions. In cold weather turn the
choke lever to the fully closed position, in warm weather
set choke lever half way or completely open.
4. Fuel Shut-Off Valve – Supplies fuel from the fuel tank to
the engine. To begin fuel flow move the fuel shut-off valve
downward.
L1. A Returned Material Authorization must be approved by Multiquip prior to shipment. A copy of the Authorization must
5. Oil Bath Fill Plug – Open this plug to add oil to the oil
accompany the shipment to the designated Warehouse. A copy of the original Multiquip invoice to the customer must
bath reservoir.
also accompany the shipment.
6. Drain Valve – Open this valve to remove oil from the
bellows.
10. Recoil Starting Handle – Used when starting the engine.
Pull starter handle sharply and quickly, then return
starter handle to starter case before releasing.
11. Fuel Tank/Cap – Poly fuel tank to avoid rust and
corrosion, remove this cap to add gasoline.
12. Engine Air Cleaner – Prevents dirt (second stage) and
other debris from entering the engine.
13. Bellows – Reservoir for oil bath.
14. Handle – To operate rammer, grip handle assembly
firmly on both sides.
15. Muffler– Used to reduce noise and emissions.
16. Spark Plug – Provides spark to the ignition system,
replace with engine manufactures recommended type
spark plug.
17. Nameplate – Displays infor mation regarding the rammer.
7. Pre-Cleaner – Pre-cleans (first stage) dirt and other
debris from entering the engine.
PAGE 12 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
MT-74F — BASIC ENGINE
Figure 1A. Robin EH-12-2D Engine Controls and Components
INITIAL SERVICING
The engine (Figure 1A) must be checked for proper lubrication and
filled with fuel prior to operation. Refer to the manufacturer's Engine
manual for instructions & details of operation and servicing.
1. Secondary 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.
2. Choke Lever –Used when starting the engine. Normally
WARNING
used in cold weather conditions. In cold weather turn the
choke lever to the fully closed position, in warm weather
set choke lever half way or completely open.
3. Spark Plug – Provides spark to the ignition system. Set
spark plug gap to 0.6 - 0.7 mm (0.024 - 0.028 inch). Clean
spark plug once a week.
4. Muffler – Used to reduce noise and emissions.
WARNING
5. Recoil Starter (pull rope) – Manual-starting method. Pull
the starter grip until resistance is felt, then pull briskly and
smoothly.
6. Engine ON/OFF Switch – Controls the starting and
stopping of the engine. Switch must be in the "ON" position
when starting the engine.
NOTE
WARNING
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.
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.
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 13
MT-74F — OPERATION
This section is intended to assist the operator with the initial
start-up of the MT-74F Tamping Rammer. It extremely important
that this section be read carefully before attempting to operate
the rammer.
DO NOT use your rammer until this section is thoroughly
understood.
CAUTICAUTI
CAUTION
CAUTICAUTI
Failure to understand the operation of
the MT-74F Tamping Rammer could
result in severe damage to the trowel
or personal injury.
Rammer Gearbox and Spring Cylinder Oil Bath
This unit uses an oil bath lubrication system. Perform the following:
1. Check the oil level through the oil level sight glass (Figure 2)
at the rear of the tamper foot.
Read Manual
Engine
1. Fill the fuel tank (Figure 3 ) with unleaded gasoline. At the
same time, check the engine oil and make it a habit to
replenish it often.
Figure 3. Fuel Tank
2. Low levels of oil may result in engine seizure due to high
levels of consumption during operations.
Figure 2. Foot Housing Sight Glass
2. If oil is not visible, add 10W-30 motor oil into the oil fill plug
opening (Figure 2). The bath contains approximately 1.7
pints (800 cc.)
NOTE
The oil level should be kept at the half
way point of the sight glass.
PAGE 14 — MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07)
3. Check the engine oil level and if the engine oil level is low, it
should be refilled. Use the proper motor oil as suggested in
the Table 3 below.
Figure 4. Engine Oil Dipstick
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MT-74F — OPERATION
Inspection
1 . Check all nuts, bolts fasteners for tightness. Retighten as
necessary.
2. Clean any dirt from the recoil starter and foot pedestal. Wipe
the entire unit clean before operating.
3. Replace any missing or damaged Safety Operation decals.
4. Adjust height of handle. Adjust handle by loosening nuts and
moving handle to suit operation. Retighten nuts.
Initial Start-up
When starting the MT-74F Tamping Rammer perform the
following:
1. Open the fuel shut-off valve by moving the
open
to the
stop switch (Figure 4) to the "START" position.
position (Figure 5) then set the engine start/
fuel cock
lever
3. Close the choke lever (Figure 7) and move the throttle lever
to the "Full Open" position. Turning the choke lever 90
degrees clockwise closes the choke . In cold weather, start the
unit with choke fully closed. In warm weather or when the
engine is warm, the unit can be started with choke halfway
or completely open.
4. Grip the recoil starter (Figure 8 ) handle and pull it until you
feel a slight resistance. Then pull sharply and quickly. Return
the recoil starter handle to the starter case before releasing.
Figure 7. Choke Lever
Figure 5. Fuel Cock
2. Set the engine ON/OFF switch (Figure 6) to the "ON"
pos ition (start).
Figure 6. On Off Switch
MT-74F — OPERATION AND PARTS MANUAL — REV. #12 (11/08/07) — PAGE 15
Figure 8. Recoil Starter
5. If engine fails to start, move the choke lever (Figure 7) to the
half open position to avoid flooding.
6. Repeat steps 1 thru 4.
7. If the engine does not start after repeated attempts,
check the spark plug for excess fuel. Clean and replace
the spark plug as needed.
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