Dynamic TRE-75 TAMPING RAMMER User manual

TRE-75
TAMPING RAMMER
Operation manual
Dynamic world Dynamic life

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CONTENTS
Contents..............................................................................................1－1
Forward.........................................................................................2－2
Feature...........................................................................................2－2
Specification....................................................................................3－3
Safety..................................................................................................3－4
Safety precautions..........................................................................4－4
Transporting and storage..................................................................4－6
Check before operation.......................................................................6－8
Starting the engine............................................................................8－10
Setting engine speed........................................................................10－11
Stopping the engine.........................................................................11－11
Preventative Maintenance and routine service plan ....................12－18
Easy Troubleshooting......................................................................19－20
Diagram...........................................................................................21－28

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FOREWARD
◇For your own safety and protection from bodily injuries, carefully read,
understand and follow the safety instructions in this manual.
◇Please operate and maintain your machine in accordance with the
instructions in this manual.
◇Defective machine parts are to be replaced as soon as possible.
◇Keep this owner's manual handy, so you can refer to it at any time.
◇No part of this publication may be reproduced without written
permission.
◇We expressly reserve the right to technical modifications- even without
express due notice - which aim at improving our machines or their safety
standards.
FEATURE
TRE-75 Tamping Rammer adopts the HONDA 4-cycles engine that
there is one air cleaner. The guide handle offers a highly engineered,
built-in shock mount system to reduce HAV (hand-arm vibration) and
improve operator comfort. Well balanced performance reduces operator
effort, non key seat design double service life of inner-cylinder body.
Easy for dismounting, and low cost for maintenance.
TRE-75 Series Rammer are ideally suited for the compaction of
granular, detritus, mixed and cohesive soils in confined areas, as well as
apply to asphaltum detritus, concrete and clunch. This model provides
reliable, comfortable use for a variety of applications such as
compacting sandy oil, back fill, asphaltum, road, railroad, bridge,
reservoir, dyke, courtyard, flooring and so on.
SPECIFICATIONS
Weight: 70Kg
Hit frequency: 420－650／min
Compacting force: 14000N

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Jump height: 50－60mm
Forward speed:8m/min
Metal sheet: 280mm×350mm
Power:ER12
Overall dimensions:760mm×410mm×970mm
Engine oil: Grade of Engine oil SF or SG; SAF10W－30
Engine oil: 0.30L
Fuel: Unleaded gasoline with a pump octane rating of 90 or higher
Fuel capacity: 3L
Spark plug: NGK: CR5HSB; DENSO: U16FSR－UB
SAFETY
1. Before starting operation, the operator has to check that all control
and safety devices function properly.
2. To prevent fire hazards and to provide adequate ventilation for
stationary equipment applications keep the engine at least 3 feet (1
meter) away from building walls and other equipment during
operation.
3. Don't allow children to operate the engine. Keep children and pets
away from the area of operation.
4. Know how to stop the engine quickly, and understand the operation
of all controls. Never permit anyone to operate the engine without
prior instructions.
5. Do not place flammable objects close to the engine.
6. The max gradient of 20° must not be exceeded when the engine
working.
7. Wear safety shoes, and eye protection glasses in case of trench
operation where falling sand stones maybe ejected.
8. When the machine working, prohibit the operator from the machine.

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9. Do not uses to compacting severity harden or hard surface, such as
block, floor slab, cement block.
10. Placed a machine, we should avoid dumping, roll and fall, etc.
SAFETY PRECAUTIONS
1. Gasoline is extremely flammable, and gasoline vapor can explode.
Refuel outdoors, in a well-ventilated area, and keep other flames and
sparks away.
2. Fuel the engine must always be stopped; using all necessary safety
precautions.
3. Do not fill the fuel tank completely. After refueling, tighten the fuel
tank cap securely.
4. Spilled fuel is not only a fire hazard, it causes environmental
damage. Wipe up spills immediately.
5. The muffler becomes very hot during operation and remains hot for
a while after stopping the engine. Be careful not to touch the muffler
while it is hot. Let the engine cool before storing it indoors.
6. Exhaust gas contains poisonous carbon monoxide. Avoid inhalation
of exhaust gas. Never run the engine in closed garage or confined
area.
7. The recommended spark plug heat range for normal engine
operating temperatures.
TRANSPORTING AND STORAGE
DANGER! Keep the engine lever off when transporting to reduce the
possibility of fuel leakage. Turn the fuel valve lever to the OFF position.
1. Keep the fuel valve lever to OFF position when transporting.
2. The load-carrying capacity of the loading ramps has to be sufficient
and the ramps have to be secured such that they cannot turn over. Make

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sure that no one be endangered by machines turning over by slipping or
by moving machine parts.
3. Drain the used oil when being transported on vehicles, precautions
have to be taken that vibration plates do not slip or turn over.
The following should be taken to prepare your TRE-72
Tamping Rammer for extended storage.
1. Close fuel shut off valve.
2. Store the unit in an upright position in a cool, dry, well ventilated
area.
3. Siphon excess gasoline from tank.
4. Start engine until it stops from lack of fuel. This will use up all the
fuel in the carburetor and prevent formation of deposits due to
evaporation of fuel.
5. Remove spark plug and pour 2 oz. of SAE-30 or SAE-40 motor oil
into the cylinder. Slowly crank the engine 2 or 3 times to distribute
the oil throughout the cylinder. This will help prevent rust during
storage. Replace spark plug.
DANGER! Gasoline is extremely flammable,
do not smoke or handle open fire near this
machine.
6. Change the engine oil (See page 10).
7. Pull the starter grip slowly until resistance
is felt and the notch on the starter pulley aligns with the hole at the
top of the recoil starter cover. This will close the valves so moisture
cannot enter the engine cylinder. Return the starter grip gently.

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CHECK BEFORE
OPERATION
1. Oil level check.
CAUTIONS! Running the engine
with a low oil level or without oil
can cause engine damage.
a. Remove the filler cap/dipstick and check the oil level shown on the
dipstick.
b. If the oil level is low, fill to the edge of the oil filler hole with the
recommended oil. When you talk something with me
SAE 10W-30 is recommended for general use. Other viscosities shown
in the chart may be used when the average temperature in your area is
with the recommended range.
CAUTIONS! Use not depurative lubrication or 2-cycle lubrication can
cause engine damage.
Recommend the engine operation climate:－15℃－40℃（5°F－104°F）
2. CHECKAIR CLEANER
NOTICE! Operating the engine without an air filter, or with a damaged
air filter, will allow dirt to enter the engine, causing rapid engine wear.
This type of damage is not covered by the Distributor’s Limited
Warranty.

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3. CHECK FUEL
These engines are certified to operate on unleaded gasoline. Unleaded
gasoline produces fewer engine and spark plug deposits and extends
exhaust system life. Never use stale or contaminated gasoline or an oil
/gasoline mixture. Avoid getting dirt or water in the fuel tank.
Occasionally you may hear a light “spark knock” or “pinging” (metallic
raping noise) while operating under heavy loads. This is no cause for
concern. If spark knock or pinging occurs at a steady engine speed,
under normal load, change brands of gasoline. If spark knock or pinging
persists, see an authorized you’re servicing dealer.
DANGER!
a. Gasoline is highly flammable and explosive.
b. Refuel in a well-ventilated area before starting the engine. If
the engine has been running, allow it to cool. Gasoline is highly
flammable and explosive.
c. Refuel carefully to avoid spilling fuel. Do not fill the fuel tank
completely. Fill tank to approximately 1 inch (25mm) below
the top of the fuel tank to allow for fuel expansion. It may be
necessary to lower the fuel level depending on operating
conditions.After refueling, tighten the fuel tank cap securely.
d. Be careful not to spill fuel when filling your fuel tank. Damage
caused by spilled fuel is not covered under warranty.
e. Spilled fuel is not only a fire hazard, it causes environmental
damage. Wipe up spills immediately.
f. Keep the children away from the fuel.
4. Check the oil level sight plugs on the Pipe-protective r daily to ensure
the oil is half way on the site glass. Tamping Rammer capacity is 50 oz.
(1600ml). The band of lubrication: SAE10-30.
5. Check fastening screws of protective frame and central suspension for
tight fit.

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STARTING THE ENGINE
（1）Open the fuel valve.（see Fig3-1）
①OPEN ②CLOSE
（2）Tum the STOP SWITCH to the
position “I”(ON).(see Fig 3-2)
①ON .的②OFF
（3）Close the choke lever.
FLOAT Type . (see Fig 3-3-B)
DIAPHRAGM Type (see Fig 3-3-B)
①OPEN ②CLOSE
■ If the engine is cold or the ambient
temperature is low, close the choke lever
fully.
■ If the engine is warm or the ambient
temperature is high, open the choke lever
half-way, or keep it fully open.
■ For the diaphragm type, press the primer
pump on the carburetor casing a few times to circulate the fuel to the
carburetor.(see Fig 3-4)
（4）Pull the starter handle slowly until resistance is felt. This is the

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“compression” point. Return the handle to its original position
and pull swiftly. Do not pull out the rope all the way. After
starting the engine, allow the starter handle to return to its original
position while still holding the handle. (See Fig 3-5)
（5）After starting the engine,
gradually open choke by
turning the choke lever and
finally keep it fully opened.
Do not fully open the choke lever immediately when the engine is
cold or the ambient temperature is low, because the engine may
stop.
FLOAT Type (See Fig 3-6-B)
DIAPHRAGM Type (See Fig 3-6-B)
①CLOSE ②OPEN

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SETING ENGINE SPEED
（1）After the engine starts, set the speed control lever at MIN(low
speed) position and warm it up without load for a few minutes.
（2）Gradually move the speed control lever toward MAX(high speed)
position and set it
at the required engine speed.
■ Whenever high speed operation is not required, slow the engine down
(idle) by moving the speed control lever toward MIN (low speed)
position to save fuel and extend engine life.
1、Position the throttle lever for the desired engine speed.
NOTICE！When starting the machine, do not exceed 1/3 throttle
position. A higher setting may be cause the centrifugal clutch to engage
and the handle to rotate.
2、Through the handle guiding cause the machine to travel. The machine
has the high compaction performance when the metal sheet balances on
the surface. Never severity pressure or holding on the handle can
damage the machine. See down fig.

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NOTICE!
A、Be careful to the machine weltered when the machine working on
the abrupt surface.
B、Turn the engine switch to the OFF position when stop working.
C、Do not allow to the machine work on the severity harden surface.
STOPPING THE ENGINE
To stop the engine emergency, simply turn the engine switch to the OFF
position.
1. Set the speed control lever at MIN (low
speed) position and allow the engine to
run at low speed for 1 or 2 minutes
before stopping.
2. Turn the STOP SWITCH
counterclock-wise to the position “○” (OFF).
3. Close the fuel valve.
PREVENTATIVE MAINTENANCEAND ROUTINE SERVICE
PLAN
CAUTION！
1、Make sure the engine is off before you begin any maintenance or
repair and remove the spark plug.
2、Remember that your servicing dealer knows your engine best and is
fully equipped to maintain and repair.
3、Preventative maintenance and routine service are essential to the
long life of your machine.
4、Disassembly parts：
Notice！Please according to as follow while you need disassemble

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parts.
a、Disassemble four lock-nuts between foot
plate and pipe-protective, and then remove
foot plate.
b、Disassemble six screws (M8×25)
between foot plate and pipe-protective.
c、Disassemble six screws (M12×35) among
foot plate, cover and spring cylinder, then
remove foot place.
NOTICE！Do not to remove two screws
(M12×25) between cover and spring cylinder
when you operate step “c”. Be careful to
spring and cover bounced.
d、Install two stud (applicable types) in two disassembled screw (12×35)
positions , then attach two stud with two nut(M12) (applicable types) on
the cover. See right fig..
e、Remove two screw(M12×25) between cover and spring cylinder, then
slowly and equably remove two nut(M12). See right fig..
CAUTION！Keep people away from in the front two stud when remove
spring, serious injury.
CAUTION！Do not allow two stud to turn when remove spring. Be
careful bounce.
Maintenance schedule
Engine：
Maintenance Items
Every
8 hours
(Daily)
Every
50 hours
(Weekly)
Every
100
hours
Every
200 hours
(Monthly)
Every
300
hours
Every
500
hours

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Clean engine and check bolts
and nuts
●(Daily)
Check for leakage from hoses
and fitting
●(Daily)
Check and refill engine oil
●(Refill
daily up to
upper
level)
Change engine oil
●(Initial 20
hours)
●
Clean oil filter
●(Initial 20
hours)
●
Replace oil filter
●
Clean spark plug
●
Clean air cleaner
●
Replace air cleaner element
●
Clean fuel strainer
●
Clean and adjust spark plug
and electrodes
●
Check and adjust valve
clearance
●
Check timing belt
●
Replace timing belt
●
Remove carbon from cylinder
head
●
Clean and adjust carburetor
●
Intake and exhaust valve
inspection and precision
surface finishing
●
Replace fuel lines
●(Ever

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y2year
s)
Overhaul engine if necessary
●
Tamping rammer：
Each
use
After month
or 50 hrs
Every 6
months or
150 hrs
Every year
or 300 hrs
Check the oil lever sight
plugs
√
Check fastening screws
√
√
√
Check for tightness engine
√
√
√
Change oil
√
√
Check fastening other
screws
√
√
√
ENGINE OILCHANGE
Drain the used oil while the engine is warm. Warm oil drains quickly and
complete.
1、Place a suitable container below the engine to catch the used oil, and
then remove the oil filler cap/dipstick, oil drain plug and washer.
2、Allow the used oil to drain completely, and then reinstall the oil drain
plug and new washer, and tighten the oil drain plug securely.
3、With the engine in a lever position, fill with the recommended oil to
the upper limit mark.
4、Screw in the oil filler cap/dipstick securely.
Engine oil capacity: 14oz. (0.4l)

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NOTICE！Please dispose of used motor oil in a manner that is
compatible with the environment. We suggest you take used oil in a
sealed container to your local recycling center or service station for
reclamation. Do not throw it in the trash, pour it on the ground, or pour it
down a drain.
CLEANINGAIR CLEANER
A dirty air cleaner element will cause starting difficulty, power loss,
engine malfunctions, and shorten engine life extremely. Always keep the
air cleaner element clean.
WARNING! Flame Prohibited
Dual Element Type (Urethane Foam and Nonwoven Cloth elements)
■ Remove the urethane form the nonwoven cloth element and wash it in
the kerosene or diesel fuel.
The saturate it in a mixture of 3 parts kerosene or diesel fuel and 1
part engine oil.
Squeeze the element to remove the mixture and install it in position.
(See Fig ①)
■ Wash the element in kerosene and drain off the kerosene. Then saturate
it in a mixture of 3 parts kerosene and 1 part engine oil, wring the
element to remove the mixture and install. (See Fig ②)
NOTE
Clean and replace air cleaner elements more often when operating in
dusty environments. Replace the element in case that dirt or dust can’t be
removed and/or that the element is deformed or deteriorated.

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SPARK PLUGS
NOTE
Use the Plug Wrench supplied with this unit.
（1）Clean off carbon deposits on the spark plug electrode using
a plug cleaner or wire brush.
（2）Check electrode gap. The gap should be 0.6mm to 0.7mm. Adjust
the gap, if necessary, by carefully bending the side electrode.
Recommended Spark Plug: CR5HSB (NGK)
NOTICE！An incorrect spark plug can cause engine damage.
For good performance, the spark plug must be properly gapped and free
of deposits.
1、Disconnect the spark plug cap, and remove any dirt from around the
spark plug area.
2、Remove the spark plug with a 5/8-inch spark plug wrench.
DANGE！Be careful not to touch the muffler while it is hot.
3、Inspect the spark plug. Replace it if damaged or badly fouled, if the

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sealing washer is in poor condition, or if the electrode is worn heavy
carbon build is found.
4、Measure the spark plug electrode gap with a wire-type feeler gauge.
Correct the gap, if necessary, by carefully bending the side electrode.
The gap should be: 0.6 - 0.7mm (0.024 - 0.028 in)
5、Check sealing washer, Install the spark plug carefully, by hand, to
avoid cross-threading.
6、After the spark plug is seated, tighten with a 5/8-inch spark plug
wrench to compress the sealing washer.
7、When installing a new spark plug, tighten 1/2 turn after the
spark plug seats to compress the washer.
8、When reinstalling the original spark plug, tighten 1/8-1/4 turn after
the spark plug seats to compress the washer.
NOTICE！A loose spark plug can overheat and damage the engine. Over
tightening the spark plug can damage the threads in the cylinder head.
9、Attach the spark plug cap to the spark plug.
EASY TROUBLESHOOTING
WHEN ENGINE WILLNOT START:
Perform the following checks before you take the engine to your Robin
dealer.
If you still have trouble after completing the checks, take the engine to
your nearest Robin dealer.

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1. Is there a strong spark across the electrode?
（1）Is the stop switch at position “I” (ON)?
（2）Remove and inspect the spark plug.
If the electrode is fouled, clean or replace it with new one.
（3）Remove the spark plug and connect it to the plug cap.
Pull the starter handle while grounding spark plug against engine
body. Try with a new spark plug if the spark is weak or there is no
spark.
The ignition system is faulty if there is no spark with a new spark
plug.
WARNING!
■ Wipe out spilled fuel carefully before testing. Place spark plug as far
away from spark plug hole as possible.
■ Do not hold spark plug by hand while pulling recoil starter.
2. IS there enough compression?
Pull the starter handle slowly and check if resistance is felt. If little force
is required to pull the starter handle, check if the spark plug is tightened
firmly. If the spark plug is loose, tighten it.
3. Is the spark plug wet with gasoline?
（1）Is the fuel valve opened?
（2）Choke (close choke lever) and pull the starter handle five or six
times. Remove the plug and check is its electrode is wet. If the
electrode is wet, fuel is well supplied to your engine.
（3）When the electrode is dry, check where the fuel stops.
NOTE
The engine with oil sensor will stop automatically when the oil level
falls below the prescribed limit.
Unless the oil level is raised above the prescribed limit, the engine
will stop immediately after starting.

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(Check the fuel intake of the carburetor.)
（4）In case the engine does not start with well supplied fuel, try using
fresh fuel.
4 work machine jumping instability or no strength
(1) work, when the ground is too hard, the machine will be beating is
too large, or not stable, and the effect is not ideal. At this time, the
shifting switch proper adjustment is small, transferred to the
appropriate location.
(2) when the ground is too soft, the machine will appear no strength,
compaction effect is not good. This can put finger switch to the
maximum, if the maximum or the effect is not obvious, even when the
engine speed increase. Loosen the nuts bolts B, A back half circle,
increases the speed of 100 rpm, after adjustment, tighten the nut B.
The following diagram: