Masalta EMR75M User manual

INSTRUCTION MANUAL
TAMPING RAMMER
EMR75M
WARNING
!
To reduce the risk of injury, all operators and maintenance personnel must read and understand these
instructions before operating, changing accessories, or performing maintenance on Masalta power
equipment. All possible situations cannot be covered in these instructions. Care must be exercised
by everyone using, Maintaining or working near this equipment.
R

1
Contents
Introduction…………………………………………………..……………………………………………1
Application ………………………………………………………………………………………..……….2
Operating safety……………………………………………………………………………………..…2-4
Label locations…………………………………………………………………………………………….4
Safety and Operating Labels …………………………………………………………………….5-6
Prior to Starting the Operation ………………………………………………………………………..6-7
Operation ………………………………………………………………………………………………… 7-8
Service and Maintenance ………………………………..…………………………………………… 8-9
Specification ………………………………………………..………………………………………………9
Transportation ………………………………………………….………………………………………….10
Trouble shooting ……………………………………………….……………………..……………….10-11
Warranty and Maintenance Record ………………………………………….……………………….. 12
EC Declaration ……………………………………………………………………………………………. 13
Introduction
Thanks for your selection of this equipment. We have taken care in the design, manufacture and
testing of the product. It is covered by a six month warranty. Should service or spare parts be
required, prompt and efficient service is available from our company or our agent.
Definition of Tamping Rammer
Tamping Rammer is a compacting machine, capable of quickly working by applying consecutive
impacts to the surface of soil-in order to level the uneven soil surface, to compact the soil uniformly
so that the void among soil particles are minimized and to increase its dry density with moisture in the
soil removed.
Construction of Tamping Rammer
Air-cooled engine has bee installed as its source of power.
Transmission of the power is taken place by increasing engine speed to engage a centrifugal clutch,
and the speed is substantially reduced by means of gears and rotational motion is converted into
reciprocal (vertical) motion.
Aheavy duty spring is installed at the part that moves up and down so that its force and the weight of
tamping rammer work each other to develop powerful compacting force at the foot of the rammer.
Proper service and operation are essential for full commissioning of such performance.

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Application
Rammers are designed to compact loose soils and gravel to prevent settling and to provide a firm,
solid base for the placement of footings, concrete slabs, foundations, gas piping works, water pipe
works and cable backfill works, etc.
Warnings for incorrect application and abuse
Please do not use in such as following cases. It may cause damage because machine is likely to be
unbalanced.
Pile foundation
Hard soil excessively compacted over normal condition
Steep bank slope
Tamping Rammer is to be used for compacting cohesive clay, gravels, and patching work on asphalt,
etc.
Structure
The upper part is made up of Power source, Clutch, Connecting Rod and Operating Handle, Fuel
Tank that connected via Shock Absorbing Rubber to body. Bottom end is made up of Spring Cylinder
(Sliding part), Foot Plate that ramps body, Foot and Bellows that covers sliding part.
Operating Safety
Safety Notes
This manual contains NOTES, CAUTIONS, and WARNINGS which must be followed to prevent the
possibility of improper service, damage to the equipment, or personal injury.
Notes: Notes contain additional Information important to procedure.
CAUTION: Cautions provide information important to prevent Errors which could damage machine
or components.
WARNING
Warnings warn of conditions or practices which could
lead to personal injury or death!
Operating Safety
Familiarity and proper training are required for the safe operation of equipment! Equipment operated
improperly or by untrained personnel can be dangerous! Read the operating instructions and
familiarize yourself with the location and proper use of all instruments and controls. Inexperienced
operators should receive instruction from someone familiar with the equipment before being allowed
to operate the rammer.
NEVER operate rammer in applications for which it is not intended.
NEVER allow improperly trained personnel to operate rammer.
NEVER touch hot muffler, engine cylinders, or cooling fins. Burns will result.
NEVER use accessories or attachments which are not recommended by MASALTA for rammer.
Damage to rammer and/or injury to user may result.
NEVER leave a running machine unattended.

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NEVER run machine indoors or in an enclosed area such as a deep trench unless adequate
ventilation is provided. Exhaust gas from the engine contains poisonous carbon monoxide gas;
exposure to carbon monoxide can cause loss of consciousness and may lead to death.
NEVER tamper with or disable the function of operating controls.
NEVER use choke to stop engine.
NEVER operate the machine in areas where explosions may occur.
ALWAYS remove or disconnect engine spark plug before servicing rammer, to avoid accidental
start-up.
ALWAYS read, understand, and follow procedures in Operator‟s Manual before attempting to
operate equipment.
ALWAYS be sure that all other persons are at a safe distance from the rammer. Stop the machine if
people step into the working area of the machine.
ALWAYS be sure operator is familiar with proper safety precautions and operation techniques
before using rammer.
ALWAYS wear protective clothing when operating rammer. Wear goggles or safety glasses,
hearing protection, and safety shoes.
ALWAYS keep hands, feet, and loose clothing away from moving parts of rammer.
ALWAYS use common sense and caution when operating rammer.
ALWAYS be sure rammer will not tip over, roll slide, or fall when not being operated.
ALWAYS turn engine OFF when rammer is not being operated.
ALWAYS guide the rammer in such a way that the operator is not squeezed between the rammer
and solid objects. Special care is required when working on uneven ground or when compacting
coarse material. Make sure to stand firmly when operating the machine under such conditions.
ALWAYS operate the rammer in such a way that there is no danger of it turning over or falling in,
when working near the edges of breaks, pits, slopes, trenches and platforms.
Operator Safety while using Internal Combustion Engines
Internal combustion engines present special hazards during operation and fueling! Failure to follow
the safety guidelines described below could result in severe injury or death.
DO NOT smoke while operating rammer.
DO NOT smoke when refueling engine.
DO NOT refuel hot or running engine.
NO NOT refuel engine near open flame.
DO NOT spill fuel when refueling engine.
DO NOT operate rammer near open flames.
Service Safety
Poorly maintained equipment can become a safety hazard! In order for the equipment to operate
safely and properly over a long period of time, periodic maintenance and occasional repairs are
necessary.
ALWAYS refill fuel tank in well-ventilated area.
ALWAYS replace fuel tank cap after refueling.
ALWAYS check fuel lines, fuel cap, and fuel
tank for leaks and cracks before starting engine.
Do not run machine if fuel leaks are present, or
fuel cap or fuel lines are loose.
WARNING

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WARNING
DO NOT attempt to clean or service rammer
while it is running.
DO NOT operate rammer with safety devices
or guards removed or not in working order.
DO NOT operate rammer without air cleaner.
DO NOT remove air cleaner paper element,
precleaner, or air cleaner cover while
operating rammer.
DO NOT alter engine speeds. Run engine
only at speeds specified in Technical Data
Section.
Label Location
ALWAYS replace safety devices and guards after
repairs and maintenance.
ALWAYS keep area around muffler free of debris
in order to reduce to chance of an accidental fire.
ALWAYS do Periodic Maintenance as
recommended in Operator‟s Manual.
ALWAYS clean debris from engine cooling fins.
ALWAYS replace worn or damaged components
with spare parts designed and recommended by
MASALTAfor servicing this rammer.

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Safety and Operating Labels
MASALTA machines use international pictorial labels where needed. These labels are
described below:
Label
Meaning
DANGER!
Engines emit carbon monoxide; operate only in
well-ventilate area. Read the Operator‟s Manual for
machine information. No sparks, flames, or burning
objects near the machine. Shut off the engine before
refueling. Use only clean, filtered unleaded gasoline.
WARNING!
Always wear hearing and eye protection when
operating this machine.
CAUTION!
Read and understand the supplied Operator‟s Manual
before operating the machine. Failure to do so increase
the risk of injury to yourself or others.
CAUTION！
Lifting point.
CAUTION！
Do not lay down!
CAUTION!
Use only clean, filtered gasoline fuel.
WARNING!
Hot surface!

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Label
Meaning
CAUTION!
For optimal control, performance, and minimal
hand/arm vibration, grasp handle as shown.
WARNING!
Serious injury if struck by compressed spring or
cover. If the spring system cover is removed
improperly, the springs can eject.
Guaranteed sound power level in dB(A).
NOTICE!
Throttle control lever:
Turtle = Idle or Slow
Rabbit = Full or Fast
A nameplate listing the model number and serial
number is attached to each unit. Please record the
information found on this plate so it will be available
if the nameplate lost or damaged. When requesting
service information, the serial number should be
specified of the unit.
Prior to Starting the Operation
This machine is of oil bath lubrication system.
Check the oil level through a window at rear end of the foot. Replenish oil if oil is not visible at
the window. For lubrication, use automobile engine oil of 10W-30 SE, SF or better grade.
Capacity is 830cc.
Fill the fuel tank with regular gasoline (unleaded). Simultaneously, check engine oil and make it
a habit to replenish on the earlier side. Low lubrication oil level may result in engine seizure due
to consumption during operation. Nevertheless, oil level should be checked prior to start up
without fail. For lubrication, use automobile engine oil of 10W-30 SE, SF or better grade. See
Engine Operating Manual for further detail.

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Check every bolt, nut or screwed area for tightness. Loosened due to vibration may result in
unexpectedly serious trouble. Be sure to tighten any screwed area.
Remove dirt and dust. Particularly clean the vicinity of recoil starter and foot.
Operation
Starting up for Petrol engine
1. Open the fuel shut-off valve by moving the fuel cock level to the open position.
2. Set the engine ON/OFF switch to the “ON”position.
3. Grip the recoil starter handle and pull it until you feel slight resistance. Then pull sharply and
quickly. Return the recoil starter handle to the starter case before releasing.
4. Grip the recoil starter handle and pull it a little to feel a slight resistance. Then pull it powerfully
from there. To release the handle do not release it at the position where it has been pulled to, but
release it after returning closely to the starter case.
5. If the engine has started, while listening to explosion sounds, return the choke lever slowly to
full-open position. Be sure to perform a warm-up run for the period 3 to 5 minutes at low speed,
while paying careful attention to gas leakage or abnormal sound.
6. If it is difficult to start the engine by repeatedly pulling the starter rope, remove ignition plug and
check the sparking performance. If the plug is wet due to excessive fuel intake or soiled, replace
the coil or clean sufficiently to its internals. With the ignition plug removed, pull the recoil starter
handle 2-3 times to discharge excessive blended gas.
Starting up for machine
1. Turning the choke level to open the choke. Running the engine for 5 minutes at low speed to
warm the engine.
2. Move the throttle level quickly to the “FULL OPEN”position. DO NOT move the throttle level
slowly as this may cause damage to the clutch or spring.
Caution: 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.
3. After starting to tamping action, adjusts the jumping motion to suit particular soil condition by
lightly controlling the throttle lever. When the engine speed falls between the set values shown
on the engine, your work can be carried out at the best efficiently. Increasing the engine speed
unnecessarily, does not cause the compaction force to increase. On the contrary, a resultant
resonance causes the compaction force to decrease, damaging the machine.
4. Under cold weather, the oil in the machine being viscous, resistance at reciprocating part is
greater causing the tamping rammer to perform somewhat irregular movement. Therefore, it is
recommended to perform warm-up run while moving the throttle lever repeatedly between ON
and OFF positions, before entering the work.
5. Soil contacting surface of the foot is lined with heat-treated metal sheet for extra strength.
However, for compacting cobblestone, use the filling-up soil for example so that the foot hits the
soil uniformly.
6. The tamping rammer has been designed to advance while jumping. For quicker advance, erect
the machine by pushing its handle down slightly so that flat surface of the foot at its rear-end
contacts the ground.
7. To stop the tamping action, move throttle lever quickly from the FULL OPEN to IDLE position.

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To Stop
Normal shutdown
1. With the throttle lever closed from ON to OFF, run the engine for 3-5 minutes at low speed, and
after temperature is lowered, turn the switch to the “OFF”position.
2. Close the fuel shut-off valve by moving the fuel cock lever to the CLOSED position.
Emergency shutdown
Move the throttle lever quickly to the IDLE position, and turn the engine ON/OFF switch to the OFF
position.
Maintenance and Storage:
Periodic Maintenance Schedule
Daily
Before
Starting
After
First
5
hours
Every
Week
or
25 hours
Every
month
or
100 hours
Every
3 months
or
300 hours
Check fuel level.
●
Check oil level of machine.
●
Check fuel line and fittings for cracks or
leaks.
●
Tighten ramming shoe hardware.
●
●
Check and tighten engine cylinder screws.
●
●
Check and tighten external hardware.
●
●
Clean engine cooling fins.
●
Clean and check spark plug gap.
●
Replace spark plug.
●
Clean recoil starter.
●
Change ramming system oil. *
●
Clean engine muffler and exhaust port.
●
* Change ramming system oil after first 50 hours of operation.
Note: If engine performance is poor, check, clean, and replace air filter elements as needed.
Air Cleaner Cleaning for MR75R (6 to 12 months Service):
Remove element from pre-cleaner at the top of crank case and clean it with cleaning oil (kerosene).
Take of „Bolt, Cover‟of the crankcase upper part and take „Element‟off „AIR CLEANER‟. Wet the
bottom element (gray) with 7-9cc and let upper element (yellow) be familiar with oil.
MR75R is the top element (yellow) with 2-5cc and bottom element (gray) with 13-15cc of engine oil
SAE 10W-30 squeeze out the oil before installing them. Air cleaner of 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.

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Storage
Rammer should be stored in such position as it is placed on level, after engine and machine have
been cooled down. Be sure to secure the rammer as necessary to avoid falling down. If the rammer
has to be laid down inevitably, tighten fuel tank cap and engine oil plug securely and wait until engine
and machine are cooled down. After laying it down, make sure that there is no leak of fuel or oil. (If
fuel leaks, drain the tank)
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.
Specification
Model
MR60R
MR65R
MR75R
EMR75M
Motor
Robin EH09
Robin ER12
Robin EH12-2D
MG165
Power kW (hp)
2.1 (2.8)
2.9 (4.0)
3.0 (4.0)
3.2(4.3)
Operation Mass kg (lb)
60 (132)
65 (143)
75 (165)
74 (163)
Impact Force kN
10.7
13
13.8
13.8
Jumping Stroke mm
50-85
40-80
40-80
40-80
Fuel Tank Capacity l
2.8
2.8
2.8
2.8
Shoe Size mm
335x265
330x285
330x285
330x285
Acoustic Noise (According to 2000/14/EC)
MR60R
MR75R
MR75R
EMR75M
Measured sound power level
103dB
103dB
103dB
103dB
Guaranteed sound power level
104dB
104dB
104dB
104dB
Sound Power Level Limit
108dB
108dB
108dB
108dB
Working Size (L x W x H):
MR60R: 710 x 440 x 1060 mm
MR65R: 710 x 440 x 1060 mm
MR75R: 760 x 430 x 1020 mm
EMR75M: 760 x 430 x 1020 mm

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Hand-Arm vibration Specification (According to ISO 5394, EN 1033 and EN500-4): 7.0m/s2
Transportation
1. Shutdown engine for transportation.
2. For transportation, tighten fuel tank cap securely and close fuel cock to prevent fuel from spilling.
3. Drain fuel for transportation over long distance or bad road.
4. Secure machine firmly to prevent it from moving or tipping.
5. Rammer should be transported in such position as it is placed on level ground.
6. Make sure lifting device has enough capacity to hold machine (see identification plate on
machine for weight). Use central lifting point (a) when lifting machine.
7. Use trolley kit (supplied as optional) for short distance transportation.
8. Do not lay down during transportation. （）
Troubleshooting Guide
A. Rammer Troubleshooting
SYMPTOM
POSSIBLE PROBLEM
SOLUTION
Engine rotates
but amplitude
not uniform or
does not strike
Operating speed of throttle
lever is incorrectly set?
Set throttle lever to correct position.
Oil in excess?
Drain excess oil. Bring to correct level.
Clutch slips?
Replace or adjust clutch.
Spring Failure?
Replace spiral spring.
Speed of engine improper?
Adjust engine speed to correct operating RPM
setting.
a

Distributed By
MASALTA ENGINEERING CO., LTD
Add: 20 Dalian Road, Baohe Industrial Estate, Hefei 230051,China
Tel: [phone] Fax: [phone]
E-mail: [e-mail], masalt[email protected].cn
Http://www.masalta.com.cn
Version: 01/17/01