Multiquip MT70H User Manual

PARTS AND OPERATION MANUAL

Model MT-70H

© COPYRIGHT 2001, MULTIQUIP INC.

Revision #5 (03/01/01)

MULTIQUIP INC

18910 WILMINGTON AVE. 800-427-1244
CARSON, CALIFORNIA 90746 FAX: [phone]
310-537-3700
800-421-1244 800-478-1244
FAX: [phone] FAX: [phone]

E-mail:[e-mail] • www:multiquip.com

Atlanta • Boise • Dallas • Houston • Newark
Montreal, Canada • Manchester, UK
Rio De Janiero, Brazil • Guadalajara, Mexico

..

. PARTS DEPARTMENT:

..

SERVICE DEPARTMENT/TECHNICAL ASSISTANCE:

PAGE 2 — MT-70H — PARTS & OPERATION MANUAL — REV. #5 (03/01/01)

HERE'S HOW TO GET HELP

PLEASE HAVE THE MODEL AND SERIAL NUMBER
ON-HAND WHEN CALLING

PARTS DEPARTMENT

800-427-1244 or 310-537-3700
FAX: [phone] or 310-637-3284

SERVICE DEPARTMENT/TECHNICAL ASSISTANCE

800-478-1244 or 310-537-3700
FAX: [phone]

WARRANTY DEPARTMENT

888-661-4279, or 310-661-4279
FAX: [phone]

MAIN

800-421-1244 or 310-537-3700
FAX: [phone]

MT-70H — PARTS & OPERATION MANUAL — REV. #5 (03/01/01) — PAGE 3

TABLE OF CONTENTS

Here's How To Get Help ........................................ 3

Table Of Contents ................................................. 4

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

Rules For safe Operation ..................................6-7

Operation and Safety Decals ................................ 8

General Information .............................................. 9

MT-70H

Specification ........................................................ 10

Controls and Components .................................. 11

Operation .......................................................12-13

Maintenance ....................................................... 14

Troubleshooting Guide ................................... 15-16

Explanation Of Codes In Remarks Column ........ 18

Suggested Spare Parts ....................................... 19

Crankcase and Engine...................................20-21

Guide Cylinder and Foot ................................22-23

Tank and Handle 1 .........................................24-25

Tank and Handle 2 .........................................26-27

EC-10GH ROBIN ENGINE

Crankcase and Cylinder................................. 28-29

Crankshaft and Piston....................................30-31

Governor ........................................................32-33

Blower Housing & Muffler ..............................34-35

Carburetor & Air Cleaner ...............................36-37

Magneto (T.C.I). .............................................38-39

Recoil Starter .................................................40-41

Terms and Condition Of Sale

— Parts ................ 42

NOTE

Specification and part number
are subject to change without
notice.

PAGE 4 — MT-70H — PARTS & OPERATION MANUAL — REV. #5 (03/01/01)

PARTS ORDERING PROCEDURES

n

Dealer account number

n

Dealer name and address

n

Shipping address (if different than billing address)

n

Return fax number

n

Applicable model number

n

Quantity, part number and description of each part

n

Specify preferred method of shipment:

UPS Ground

•

UPS Second Day or Third Day*

•

UPS Next Day*

•

Federal Express Priority One (please provide us with your Federal

•

Express account number)*

Airborne Express*

•

Truck or parcel post

•

*Normally shipped the same day the order is received, if prior to 2PM west coast time.

Earn Extra Discounts when

you order by FAX!

All parts orders which include complete part numbers
and are received by fax qualify for the following extra
discounts:

Number of
line items ordered Additional Discount

1-9 items 3%
10+ items** 5%

Get special freight allowances
when you order 10 or more
line items via FAX!**

n

UPS Ground Service at no charge for freight

n

PS Third Day Service at one-half of actual freight cost

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.

Extra Fax DiscountExtra Fax Discount

Extra Fax Discount

Extra Fax DiscountExtra Fax Discount

for Domestic USAfor Domestic USA

for Domestic USA

for Domestic USAfor Domestic USA

Dealers OnlyDealers Only

Dealers Only

Dealers OnlyDealers Only

Now! Direct TOLL-FREE access

to our Parts Department!

Toll-free nationwide:

800-421-1244

Toll-free FAX:

*DISCOUNTS ARE SUBJECT TO CHANGE*

Fax order discount and UPS special programs revised June 1, 1995

MT-70H — PARTS & OPERATION MANUAL — REV. #5 (03/01/01) — PAGE 5

800/6-PARTS-7 • 800-672-7877

RULES FOR SAFE OPERATION

■

CAUTION:

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-70H 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 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

■

The engine section of this rammer requires an adequate
free flow of cooling air. Never operate the rammer in any
enclosed or narrow area where free flow of the air is

hot

components can cause serious

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 DEADLY
carbon monoxide gas.

■

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.

■

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.

■

Manufacture does not assume responsibility for any accident
due to equipment modifications.

■

Whenever necessary, replace nameplate, operation and
safety decals when they become difficult read.

■

Always check the machine for loosened threads or bolts before
starting.

■

■

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
the machine. Fire or explosion could
result from fuel vapors, or if fuel is spilled
on a hot engine.

NEVER operate the rammer in an explosive atmosphere or
near combustible materials. An explosion or fire could result
causing severe

bodily harm or even death.

smoke around or near

PAGE 6 — MT-70H — PARTS & OPERATION MANUAL — REV. #5 (03/01/01)

RULES FOR SAFE OPERATION

■

NEVER Run engine without air filter. Severe engine may

occur.

■

Always service air cleaner frequently to prevent carburetor
malfunction.

■

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.

■

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 Run engine without air cleaner. Severe engine

damage may occur.

■

Always read, understand, and follow procedures in Operator’s
Manual before attempting to operate equipment.

■

Always be sure the operator is familiar with proper safety
precautions and operations 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.

■

Refer to the
technical questions or information

for this equipment. Damage to the equipment and/or injury to
user may result.

ROBIN Engine Owner's Manual

recommended by Multiquip

for engine

Transporting

■

■

■

■

Emergencies

■

Maintenance Safety

■

■

■

■

■

■

Always shutdown engine before transporting.
Tighten fuel tank cap securly 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.

Always know the location of the nearest
and

first aid kit

Also know the phone numbers of the nearest

doctor

invaluable in the case of an emergency.

and

NEVER lubricate components or attempt service on a running
machine.

Always allow the machine a proper amount of time to cool
before servicing.

Keep the machinery in proper running condition.
Fix damage to the machine 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.

. Know the location of the nearest telephone.

fire department

. This information will be

fire extinguisher

ambulance

,

MT-70H — PARTS & OPERATION MANUAL — REV. #5 (03/01/01) — PAGE 7

OPERATION AND SAFETY DECALS

PAGE 8 — MT-70H — PARTS & OPERATION MANUAL — REV. #5 (03/01/01)

Definition of Tamping Rammer

The Mikasa MT-70H 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-70H levels and uniformly compacts
voids between soil particles to increase dry density.

Circular motion is converted to create impact force. The MT-70 H
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-70H 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-70H uses an oil bath lubrication system. Always
check the oil level through the oil level sight glass at the rear of
thae tamper foot.

GENERAL INFORMATION

Controls

Before starting the MT-70H Tamping Rammer identify and
understand the function of the controls, see Figure 1 on the
preceding page.

MT-70H — PARTS & OPERATION MANUAL — REV. #5 (03/01/01) — PAGE 9

MT-70H — SPECIFICATIONS

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thgieHllarevO)mm020,1(.ni1.04

htdiWllarevO)mm014(ni1.61

htgneLrevO)mm027(ni3.82

eziSeohS)mm043xmm582(4.31x.ni2.11

etunim/swolB066

ecroFtcapmI)wolb/gk072,1(wolb/.sbl008,2

ekortStcapmI)mm58(.ni53.3

snoitacificepSremmaRH07-TM.1elbaTsnoitacificepSremmaRH07-TM.1elbaT

snoitacificepSremmaRH07-TM.1elbaTsnoitacificepSremmaRH07-TM.1elbaT

snoitacificepSremmaRH07-TM.1elbaT

thgieWgnitarepO)gk56(.sbl751

LEDOMG-01CEniboR

epyTenignEenilosaGekortS2delooC-riA

tnemecalpsiDnotsiP)cc89(.ni.uc00.6

tuptuO.xaM)WK0.3(mpr000,4/ph0.4

daoLoN,deepSdenrevoG.xaMmpr009,3

metsySgnilooCdelooC-riA

metsySnoitacirbuL metsySgniyarpSliOnoitacirbuL-leuF

leuF)lio(1:52enilosagdedaelnU

snoitacificepSenignEH07-TM.2elbaTsnoitacificepSenignEH07-TM.2elbaT

snoitacificepSenignEH07-TM.2elbaTsnoitacificepSenignEH07-TM.2elbaT

snoitacificepSenignEH07-TM.2elbaT

metsySgnitratSretratSlioceR

NOTE

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

PAGE 10 — MT-70H — PARTS & OPERATION MANUAL — REV. #5 (03/01/01)

MT-70H — CONTROLS AND COMPONENTS

Figure 1. MT-70H Rammer

Figure 1 shows the location of the controls and components
for the MT-70H Tamping Rammer. The functions of each
control is described below:

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.

5. Excess Fuel Drain Valve – Open drain plug when

excess fuel is present in the carburetor, or crankcase.

L1. A Returned Material Authorization must be approved by Multiquip prior to shipment. A copy of the Authorization must

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

6. Drain Valve – Open this valve to remove oil from the

also accompany the shipment.

bellows.

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

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.

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. Air Cleaner – Prevents dirt (second stage) and other
debris from entering the engine.

13. Bellows – Reservoir for oil bath.

14. Handle – To operate rammer
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.

GRIP

handle assembly

MT-70H — PARTS & OPERATION MANUAL — REV. #5 (03/01/01) — PAGE 11

MT-70H — OPERATION

This section is intended to assist the operator with the initial
start-up of the MT-70H 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.

CAUTION:CAUTION:

CAUTION:

CAUTION:CAUTION:

Failure to understand the operation of the MT­70H 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 at the rear
of the tamper foot.

2. If oil is not visible, add 10W-30 motor oil. The bath contains
approximately 1.7 pints (800 cc.)

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-70H Tamping Rammer perform the
following:

1. Open the shut- off valve by moving the strainer lever

downward (Figure 3), then set the engine star t/stop swi tch
(Figure 4) to the "START" position.

NOTE

The oil level should be kept at the half
way point of the sight glass.

Engine

Before pouring fuel into the fuel tank (Figure 2) perform the
following:

1. Find a container for the mixing of fuel and gasoline.

2. Use a quality outboard motor oil for 2-cycle engines.

3. Mix gasoline (unleaded) with oil at a 25:1 ratio. Mix well.

4. Be sure to filter the mixed fuel with a strainer at the filler port.

5. If fuel spills on the fuel cap when operating rammer, replace the
rubber leak stopper inside the cap.

Figure 3. Fuel Shut-Off Valve

Figure 2. Fuel Tank

Figure 4. Engine Start/Stop Switch

PAGE 12 — MT-70H — PARTS & OPERATION MANUAL — REV. #5 (03/01/01)

2. Close the choke lever Figure 3 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.

Operation

1. To start the rammer tamping action, move the throttle lever

quickly from IDLE to the FULL OPEN position (Figure 5) .
DO NOT move the throttle lever slowly as this may cause
damage to the clutch or spring.

MT-70H — OPERATION

Figure 7. Drain Cock

Figure 5. Throttle Control Lever

3. Grip the recoil starter (Figure 6 ) 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 6. Recoil Starter

4. If engine fails to start, move the choke lever (Figure 3) to the

half open position to avoid flooding.

5. Repeat steps 1 thru 4.

6. If the engine does not start after repeated attempts, check the

spark plug for excess fuel. Clean and replace the spark plug
as needed.

7. If the carburetor is flooded or the crankcase is loaded with

fuel, open the drain plug as shown in Figure 7 and drain
excess fuel.

CAUTION:CAUTION:

CAUTION:

CAUTION:CAUTION:

2. The MT-70H Tamping rammer is designed to run at 3,900
rpm. At optimum rpm the foot hits at the rate of 660 impacts
per minute. Increasing, throttle speed past factory set rpm
does not increase impacts and may damage unit. The MT­70H is designed to advance while tamping. For faster
advance, pull back slightly on the handle so that rear of foot
contacts soil first.

3. To stop the tamping action, move throttle lever quickly from
the FULL OPEN to IDLE position.

Stopping The Engine

Normal Shutdown

1. Move throttle lever quickly from the FULL OPEN to IDLE
position (Figure 5) and run the engine for three minutes at
low speed. After the engine
switch to the “STOP” position (Figure 4) until engine comes
to a complete stop.

2. Close the fuel shut- off valve by moving the strainer lever
upward. See Figure 3.

Emergency Shutdown

2. Move the throttle lever quickly to the
the engine start/stop switch to the

Make sure that the throttle lever is moved to the
FULL OPEN position. Operating the rammer at
less than full speeds can result in damage to
the clutch springs or foot

cools

, turn the engine start/stop

IDLE

position, and turn

STOP

position.

MT-70H — PARTS & OPERATION MANUAL — REV. #5 (03/01/01) — PAGE 13

■

Maintenance

Perform the scheduled maintenance procedures as indicated:

DAILY

■

Thoroughly remove dirt and oil from the engine and control
area. Clean or replace the air cleaner elements as necessary.
Check and retighten all fasteners as necessary. Check the
spring box and bellows for oil leaks. Repair or replace as
needed.

WEEKLY

■

Remove the fuel filter cap and clean the inside of the fuel
tank.

■

Remove or clean the filter at the bottom of the tank.

■

Remove and clean the spark plug, then adjust the spark gap
to .028~.031 inch (0.7~0.8 mm). This unit has electronic
ignition, which requires no adjustments.

■

Clean air cleaner cover.

200 - 300 HOURS (Air Cleaner Figure 8)

■

Remove the element from the pre-cleaner at the top of the
crankcase (body side) and clean it with cleaning oil
(kerosene).

■

Lubricate the top element (yellow) with 2~5cc of engine oil
SAE-30.

■

Lubricatebottom element (gray) with 13~15cc of engine oil
SAE-30 and completely squeeze out the excess oil before
from the element before installing.

The air cleaner on the engine side will hardly be
contaminated, if it is, however after cleaning the element
with kerosene, dip it in mixed oil consisting of 3 parts of
gasoline and 1 part of engine oil. Then tightly squeeze outer
primary element (sponge) and shake off well the inner
secondary element before installing them.

200 - 300 HOURS (Oil Bath)

■

Drain oil reservoir on foot housing. Refill with approximately

2.1 pt. (1000cc) of 10W-30 motor oil. Oil should be midway in
sight glass. Break in oil should be changed after first 50 hours.

Yearly

■

Check the fuel line and the oil line regularly for damage and
to ensure that there are no leaks.

■

Replace the oil and fuel lines every two years to maintain the
performance and flexibility lines.

Long Term Storage

■

Drain fuel from fuel tank, fuel line and carburetor.

■

Remove spark plug and pour a few drops of motor oil into
cylinder. Crank engine 3 to 4 times so that oil reaches all
internal parts.

■

Clean exterior with a cloth soaked in clean oil.

■

Store unit covered with plastic sheet in moisture free and
dust free location out of direct sunlight.

MT-70H — MAINTENANCE

Figure 8. Air Cleaner

PAGE 14 — MT-70H — PARTS & OPERATION MANUAL — REV. #5 (03/01/01)