Multiquip MT-84F User Manual

OPERATION AND PARTS MANUAL

SERIES

MODEL MT-84F

TAMPING RAMMER

(ROBIN GASOLINE ENGINE)

Revision #2 (06/30/05)

To find the latest revision of this

publication, visit our website at:

www.multiquip.com

THIS MANUAL MUST ACCOMPANY THE EQUIPMENT AT ALL TIMES.

MT-84F — PROPOSITION 65 WARNING

PAGE 2 — MT-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05)

NOTE PAGE

MT-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05) — PAGE 3

MT-84F — TABLE OF CONTENTS

Multiquip Tamping Rammer

MT-84F

Proposition 65 Warning ............................................. 2

Here's How To Get Help ............................................ 4

Table Of Contents ..................................................... 5

Parts Ordering Procedures ....................................... 5

Safety Message Alert Symbols .............................. 6-7

Rules For safe Operation ...................................... 8-9

Operation and Safety Decals ............................. 10-11

General Information ................................................ 12

Specifications .......................................................... 13

Controls and Components ...................................... 14

Basic Engine ........................................................... 15

Operation ........................................................... 16-18

Maintenance ........................................................... 19

Troubleshooting Guide ....................................... 20-21

Explanation Of Codes In Remarks Column ............ 23

Suggested Spare Parts ........................................... 23

Nameplate and Decals....................................... 24-25

Crankcase and Engine Assembly ......................26-29

Guide Cylinder and Foot Assembly ................... 30-31

Tank and Handle Assembly ............................... 32-33

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 Conditions of Sale ................................. 48

NOTE

Specification and part number
are subject to change without
notice.

PAGE 4 — MT-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05)

MT-84F — 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: [e-mail]
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: [phone]
E-MAIL: [e-mail]
INTERNET: www.multiquip.com

MT-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05) — 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)

MT-84F — 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-84F 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-84F

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

PAGE 6 — MT-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05)

MT-84F — 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

MT-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05) — PAGE 7

MT-84F — 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.

The following safety guidelines should always be used when
operating the MT-84F 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.

Read this manual!

NEVER touch the hot exhaust

manifold, muffler or cylinder. Allow
these parts to cool before servicing
engine or rammer.

■

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 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.

hot!

NEVER

DEADLY

components can cause

operate the rammer in

■

NEVER operate this equipment under the influence of

drugs

■

■

■

■

or

alcohol

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.

.

■

■

■

■

■

■

ALWAYS use extreme caution when working with
flammable liquids. When refueling, stop the engine and

allow it to cool.
NEVER operate the rammer in an

explosive atmosphere or near
combustible materials. An explosion or
fire could result causing severe

harm or even death.

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.

smoke

around or near the

bodily

PAGE 8 — MT-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05)

MT-84F — 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
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

ON/OFF

switch before operating. The

unauthorized

people away

ROBIN Engine Owner's Manual

for engine

MAINTENANCE

■

■

■

■

■

■

EMERGENCIES

■

ALWAYS know the location of the nearest

extinguisher

■

In emergencies
the nearest phone or

site

nearest

department

in the case of an emergency.

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.

fire

and first aid kit.

always

know the location of

keep a phone on the job

. Also know the phone numbers of the

ambulance, doctor

. This information will be invaluable

and

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

MT-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05) — PAGE 9

MT-84F — OPERATION AND SAFETY DECALS

Machine Safety Decals

The MQ Mikasa MT-84F tamping rammer is equipped with a number of safety decals. These decals are provided for operator safety
and maintenance information. Figures 1 and 1A below and preceding page 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. Rammer Operation and Safety Decals

PAGE 10 — MT-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05)

MT-84F — OPERATION AND SAFETY DECALS

Figure 1A. Rammer Operation and Safety Decals

MT-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05) — PAGE 11

MT-84F — GENERAL INFORMATION

Definition of Tamping Rammer

The Mikasa MT-84F 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-84F levels and uniformly compacts
voids between soil particles to increase dry density.

Circular motion is converted to create impact force. The MT-84F
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-84F is equipped with an air cooled, two 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-84F 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-84F Tamping Rammer, identify and
understand the function of the controls. See Figure 2.

PAGE 12 — MT-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05)

MT-84F — SPECIFICATIONS

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14.41x09.31x39.11
)mm663x353x

Specifications are general and are subject to change without notice. If exact
measurements are required, equipment should be weighed and measured.

MT-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05) — PAGE 13

MT-84F — CONTROLS AND COMPONENTS

Figure 2. MT-84F Rammer

Figure 2 shows the location of the controls and components
for the MT-84F 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 bath

accompany the shipment to the designated Warehouse. A copy of the original Multiquip invoice to the customer must

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 information regarding the rammer.

7. Pre- Cleaner – Pre-cleans (first stage) dirt and other
debris from entering the engine.

PAGE 14 — MT-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05)

MT-84F — BASIC ENGINE

Figure 3. Robin EH-12-2D 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 manufacturers 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-84F — OPERATION & PARTS MANUAL — REV. #2 (06/30/05) — PAGE 15