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Preface

This instruction manual describes the proper methods for using the tamping rammer, as well as 

simple checks and maintenance. 

Be sure to read this instruction manual before using the 

rammer

, in order to get full use of the excellent performance of this machine, to improve your 

operation and to perform engineering work effectively.

After reading this manual, 

store it in a handy location

 for easy reference.

For  details  about  the  engine  in  this  machine,  see  the  separate  instruction  manual  for  the 

engine.

For inquiries about repair parts, parts lists, service manuals, and repair of the machine, please 

contact the shop where you purchased it, our sales office, or the Mikasa Parts Service Center. 

In addition, parts lists are available on the MIKASA website at: 

http://www.mikasas.com/english/ 

 

Though compact and lightweight, this rammer creates a strong impact and you may expect a 

large tamping effect on the ground.

It will compact nearly all types of soil, except soft soil that contains too much moisture.

Use this rammer to tamp the ground for creating roads, embankments, and to prepare  the 

surface to support buildings. It can also be used when burying gas or water lines, and electric 

cables.

Do not use this machine on ground that is harder than the machine can handle, or for driving 

pilings or tamping rock beds. Furthermore, use of the machine on sloping ground such as the 

side of an embankment, may be make the machine unstable and can cause an accident. It can 

also result in premature machine wear due to uneven loads on the machine.

Use the machine with confidence for tamping earth and sand, soil, sand, gravel, and asphalt. 

Do not use the machine for other type of jobs.

The upper section of the machine functions as a weight and consists of an engine section 

guide, a gear reducer section, and reciprocating section. It also accommodates the handle and 

the fuel tank sections, which are connected by rubber dampers.

The lower section of the machine which hits the ground, consists of a spring case to engage 

sliding motion, a sloping section to allow the machine to tilt toward the front, bellows to cover 

the foot, a sliding section, and a protective sleeve.

As the engine speed increases, the centrifugal clutch expands and a pinion gear that is a part 

of the clutch drum engages a gear in the crank shaft on the main frame. The engine speed is 

decreased in order to produce the required force for tamping.

The rotating motion of the main frame crankshaft is converted to a reciprocating motion through 

a connecting rod. This reciprocating motion causes the foot to go up and down through a strong 

coil spring. The weight of the main body and the strong force from the engine compress the 

spring and the foot moves up and down, striking the ground forcefully.

The illustrations and Figures in this manual may be different from the machine you 

actually purchased due to design changes and other reasons for improvement.

Application

Warning about incorrect applications and techniques

Structure

Power transmission

1

Power is provided by an air-cooled, 4-cycle, single-cylinder diesel engine. The output end of the 

engine crankshaft is equipped with a centrifugal clutch.

Summary of Contents for MT-76D

Page 1: ...UCTION MANUAL We thank you for selecting Mikasa Tamping Rammer For your safe and proper operation please read this manual and be always sure to keep it ready for reference Contents of Declaration of C...

Page 2: ......

Page 3: ...al number please refer it on front page 12 Conformity assessment according to Annex VIII Full Quality Assurance procedure 13 Name and address of the Notified Body Soci t Nationale de Certification et...

Page 4: ...n l annexe VIII procedura Garanzia di Qualit totale 13 Nom et adresse de l organisme notifi 14 Mandataire dans la Communaute Europeenne 15 Directive concernee Est egalement conforme aux dispositions d...

Page 5: ...remature machine wear due to uneven loads on the machine Use the machine with confidence for tamping earth and sand soil sand gravel and asphalt Do not use the machine for other type of jobs The upper...

Page 6: ...f you do not feel well due to overwork or illness If you are taking any medicine If you are under the influence of alcohol For details about the engine refer the separate instruction manual for the en...

Page 7: ...ing operation while moving it or stopping operation stop work immediately Before leaving the machine be sure to turn the engine off Also make sure to turn the engine off if you want to move the machin...

Page 8: ...ength to support the machine DO NOT lift it higher than necessary for safety DO NOTuse a damaged wire cable Never lift or lower the machine rapidly when using a hydraulic shovel or a crane When liftin...

Page 9: ...o oil or fuel leaks If fuel is leaking drain it all from the fuel tank Appropriate maintenance of the machine is required to ensure safety and keep the machine performing well Always be aware of the m...

Page 10: ...Fuel Starting system Recoil starter with Auto return decompression device Jumping stroke 50 80 mm WARNING The engine exhaust from this product con tains chemicals known to the State of Califor nia to...

Page 11: ...e power takes place by increasing engine speed to engage a centrifugal clutch Circular motion is converted into vertical motion to create impact force 3 Prior to Operation 3 1 Identification of Contro...

Page 12: ...to release decompression The decompression lever will return automatically when the recoil starter is pulled Fig 5 4 4 Return the recoil starter and pull the handle sharply and quickly Warm up the eng...

Page 13: ...amage to the unit can result 5 3 The rammer can be warmed by quickly moving the throttle lever from the OPERATION to the IDLE position several times until the rammer operates smoothly 5 4 The tamping...

Page 14: ...m the engine and control area Clean or replace air cleaner as necessary Check and retighten all fasteners as necessary Check spring box and bellows for oil leaks Repair as needed Remove element from p...

Page 15: ...nkcase body side Wash the element outside in detergent solution Shake out excess moisture and dry the element Clean inside element with air from the inside of element 7 6 Cleaning the Oil Filter Drain...

Page 16: ...el pipe Does not reach the starting revolution Governor fork and sleeve mating surface problems Governor spring problems Fly plate and sliding part wear and operation problems Revolution fluctuation V...

Page 17: ...from fuel passage Clogging of the air cleaner element Inappropriate fuel due to mixing of impurities Overload Fuel consumption too high black smoke Use of wrong oil Failure to change oil Breakage of t...

Page 18: ...Note...

Page 19: ......

Page 20: ...PRINTED IN JAPAN MIKASA SANGYO CO LTD 1 4 3 Sarugakucho Chiyoda ku Tokyo 101 0064 Japan...

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