Atlas Copco LT 800 Maintenance and service guide

Safety and operating instructions
Rammer
© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
LT 800

Contents
Introduction........................................................................5
About the Safety and operating instructions..........................................5
Safety instructions.................................................................6
Safety signal words..............................................................6
Personal precautions and qualifications...........................................6
Personal protective equipment...................................................6
Drugs, alcohol or medication....................................................6
Operation, precautions...........................................................6
Transport, precautions...........................................................9
Maintenance, precautions.......................................................10
Storage, precautions............................................................10
Overview.........................................................................11
Design and function............................................................11
Main parts.....................................................................11
Labels.........................................................................11
Dataplate....................................................................12
Noise level label..............................................................12
Warning label - Compressed spring package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Warninglabel-Hotsurfaces....................................................12
Liftingpointlabel..............................................................12
Safety label..................................................................12
Keep upright.................................................................12
Throttle indication.............................................................12
Transport.........................................................................13
Lifting.........................................................................13
Installation........................................................................13
Fuel...........................................................................13
Filling.......................................................................13
Operation.........................................................................14
Start and stop..................................................................14
Before starting................................................................14
Starting the engine............................................................15
Stopping the engine...........................................................15
Operating......................................................................15
When taking a break............................................................16
Maintenance......................................................................16
Cleaning the machine...........................................................16
Every 10 hours of operation (daily)...............................................16
Checkingtheoil level..........................................................17
Checking the oil level in the spring-loaded leg. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Check and clean the air filter...................................................17
Checking bolted joint..........................................................17
After the first 20 hours of operation..............................................17
Changingtheengineoil........................................................18
Changingtheoilinthespring-loadedleg.........................................18
Every 100 hours of operation (weekly)............................................18
Lubricate controls.............................................................18
Every 500 hours of operation (yearly)............................................18
Disposal..........................................................................19
3© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
ContentsLT 800

Storage...........................................................................19
Technical data.....................................................................20
Machine data...................................................................20
Noise and vibration declaration statement........................................20
Noise and vibration data........................................................21
Uncertainties, sound value......................................................21
Dimensions....................................................................22
EC Declaration of Conformity......................................................23
EC Declaration of Conformity (EC Directive 2006/42/EC)...........................23
© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
4
LT 800Contents

Introduction
Thank you for choosing a product from Atlas Copco. Since 1873, we have been
committed to finding new and better ways of fulfilling our customers' needs.
Through the years, we have developed innovative and ergonomic product
designs that have helped customers improve and rationalize their daily work.
Atlas Copco has a strong global sales and service network, consisting of
customer centers and distributors worldwide. Our experts are highly trained
professionals with extensive product knowledge and application experience.
In all corners of the world, we can offer product support and expertise to ensure
that our customers can work at maximum efficiency at all times.
For more information please visit: www.atlascopco.com
Atlas Copco Construction Tools AB
105 23 Stockholm
Sweden
About the Safety and operating
instructions
The aim of the instructions is to provide you with knowledge of how to use the
machine in an efficient, safe way. The instructions also give you advice and
tell you how to perform regular maintenance on the machine.
Before using the machine for the first time you must read these instructions
carefully and understand all of them.
5© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
Safety and operating instructionsLT 800

Safety instructions
To reduce the risk of serious injury or death to
yourself or others, read and understand the Safety
and operating instruction before installing, operating,
repairing, maintaining, or changing accessories on
the machine.
Post this Safety and operating instruction at work
locations, provide copies to employees, and make
sure that everyone reads the Safety and operating
instruction before operating or servicing the machine.
In addition, the operator or the operator's employer
must assess the specific risks that may be present
as a result of each use of the machine.
Additional instructions for the engine can be found
in the manufacturer's engine manual.
Safety signal words
The safety signal words Danger, Warning and
Caution have the following meanings:
Indicates a hazardous situation
which, if not avoided, will result
in death or serious injury.
DANGER
Indicates a hazardous situation
which, if not avoided, could
result in death or serious injury.
WARNING
Indicates a hazardous situation
which, if not avoided, could
result in minor or moderate
injury.
CAUTION
Personal precautions and
qualifications
Only qualified and trained persons may operate or
maintain the machine. They must be physically able
to handle the bulk, weight, and power of the machine.
Always use your common sense and good
judgement.
Personal protective equipment
Always use approved protective equipment.
Operators and all other persons in the working area
must wear protective equipment, including at a
minimum:
●Protective helmet
●Hearing protection
●Impact resistant eye protection with side protection
●Respiratory protection when appropriate
●Protective gloves
●Proper protective boots
●Appropriate work overall or similar clothing (not
loose-fitting) that covers your arms and legs.
Drugs, alcohol or medication
WARNING Drugs, alcohol or medication
Drugs, alcohol or medication may impair your
judgment and powers of concentration. Poor
reactions and incorrect assessments can lead to
severe accidents or death.
►Never use the machine when you are tired or
under the influence of drugs, alcohol or
medication.
►No person who is under the influence of drugs,
alcohol or medication may operate the machine.
Operation, precautions
DANGER Explosion hazard
If a warm machine or exhaust pipe comes into
contact with explosives, an explosion could occur.
During operating with certain materials, sparks and
ignition can occur. Explosions will lead to severe
injuries or death.
►Never operate the machine in any explosive
environment.
►Never use the machine near flammable materials,
fumes or dust.
►Make sure that there are no undetected sources
of gas or explosives.
►Avoid contact with the warm exhaust pipe or the
bottom of the machine.
DANGER Fire hazard
If a fire starts in the machine, it can cause injury.
►If possible use an ABE-class powder extinguisher,
otherwise use a BE-type carbon dioxide fire
extinguisher.
DANGER Fuel hazard
The fuel is flammable and fuel fumes can explode
when ignited, causing serious injury or death.
►Protect your skin from contact with the fuel. If fuel
has penetrated the skin, consult a qualified health
professional.
►Never remove the filler cap, or fill the fuel tank
when the machine is hot.
►Fill the fuel tank outdoors or in a clean and well
ventilated place, free from sparks and open
flames. Fill the fuel tank at least ten meters (30
feet) from the place where the machine is to be
used.
© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
6
LT 800Safety and operating instructions

►Release the filler cap slowly to let pressure
escape.
►Never overfill the fuel tank.
►Make sure the filler cap is screwed on when the
machine is used.
►Avoid spilling fuel on the machine, wipe off any
spilled fuel.
►Check regularly for fuel leaks. Never use the
machine if it is leaking fuel.
►Never use the machine in the proximity of material
that can generate sparks. Remove all hot or
spark-generating devices before starting the
machine.
►Never smoke when filling the fuel tank or when
working with the machine or servicing it.
►Only store fuel in a container that is specially
constructed and approved for the purpose.
►Consumed fuel and oil containers must be taken
care of and returned to the retailer.
►Never use your fingers to check for fluid leaks.
WARNING Unexpected movements
The machine is exposed to heavy strains during
operation and may break due to fatigue after a certain
amount of use. If the machine breaks or gets stuck,
there may be sudden and unexpected movement
that can cause injuries. Furthermore, losing your
balance or slipping may cause injury.
►Make sure that you always keep a stable position
with your feet as far apart as your shoulder width,
and keeping a balanced body weight.
►Always inspect the equipment prior to use. Never
use the equipment if you suspect that it is
damaged.
►Make sure that the handles are clean and free of
grease and oil.
►Keep your feet away from the rammer shoe.
►Stand firmly and always hold on to the machine
with both hands.
►Never start the machine when it is lying on the
ground.
►Never ‘ride’ on the machine with one leg over the
handle.
►Never strike or abuse the equipment.
►Check regularly for wear on the machine, and
check whether there are any signs of damage or
visible cracks.
►Pay attention and look at what you are doing.
WARNING Dust and fume hazard
Dusts and/or fumes generated or dispersed when
using the machine may cause serious and permanent
respiratory disease, illness, or other bodily injury (for
example, silicosis or other irreversible lung disease
that can be fatal, cancer, birth defects, and/or skin
inflammation).
Some dusts and fumes created by compaction work
contain substances known to the State of California
and other authorities to cause respiratory disease,
cancer, birth defects, or other reproductive harm.
Some examples of such substances are:
●Crystalline silica, cement, and other masonry
products.
●Arsenic and chromium from chemically-treated
rubber.
●Lead from lead-based paints.
Dust and fumes in the air can be invisible to the
naked eye, so do not rely on eye sight to determine
if there is dust or fumes are the air.
To reduce the risk of exposure to dust and fumes,
do all of the following:
►Perform site-specific risk assessment. The risk
assessment should include dust and fumes
created by the use of the machine and the
potential for disturbing existing dust.
►Use proper engineering controls to minimize the
amount of dust and fumes in the air and to
minimize build-up on equipment, surfaces,
clothing, and body parts. Examples of controls
include: exhaust ventilation and dust collection
systems, water sprays, and wet drilling. Control
dusts and fumes at the source where possible.
Make sure that controls are properly installed,
maintained and correctly used.
►Wear, maintain and correctly use respiratory
protection as instructed by your employer and as
required by occupational health and safety
regulations. The respiratory protection must be
effective for the type of substance at issue (and if
applicable, approved by relevant governmental
authority).
►Work in a well ventilated area.
►If the machine has an exhaust, direct the exhaust
so as to reduce disturbance of dust in a dust filled
environment.
►Operate and maintain the machine as
recommended in the operating and safety
instructions
►Wear washable or disposable protective clothes
at the worksite, and shower and change into clean
clothes before leaving the worksite to reduce
exposure of dust and fumes to yourself, other
persons, cars, homes, and other areas.
7© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
Safety and operating instructionsLT 800

►Avoid eating, drinking, and using tobacco products
in areas where there is dust or fumes.
►Wash your hands and face thoroughly as soon as
possible upon leaving the exposure area, and
always before eating, drinking, using tobacco
products, or making contact with other persons.
►Comply with all applicable laws and regulations,
including occupational health and safety
regulations.
►Participate in air monitoring, medical examination
programs, and health and safety training programs
provided by your employer or trade organizations
and in accordance with occupational health and
safety regulations and recommendations. Consult
with physicians experienced in relevant
occupational medicine.
►Work with your employer and trade organization
to reduce dust and fume exposure at the worksite
and to reduce the risks. Effective health and safety
programs, policies and procedures for protecting
workers and others against harmful exposure to
dust and fumes should be established and
implemented based on advice from health and
safety experts. Consult with experts.
DANGER Exhaust gas hazard
The exhaust gas from the machine’s combustion
engine contains carbon monoxide which is
poisonous, and chemicals known to the State of
California and other authorities to cause cancer, birth
defects, or other reproductive harm. Inhalation of
exhaust fumes can cause serious injury, illness, or
death.
►Never inhale exhaust fumes.
►Ensure good ventilation (extraction of air by fan if
necessary).
WARNING Projectiles
Failure of the work piece, of accessories, or even of
the machine itself may generate high velocity
projectiles. During operating, splinters or other
particles from the compacted material may become
projectiles and cause personal injury by striking the
operator or other persons. To reduce these risk:
►Use approved personal protective equipment and
safety helmet, including impact resistant eye
protection with side protection.
►Make sure that no unauthorised persons trespass
into the working zone.
►Keep the workplace free from foreign objects.
WARNING Motion hazards
When using the machine to perform work-related
activities, you may experience discomfort in the
hands, arms, shoulders, neck, or other parts of the
body.
►Adopt a comfortable posture whilst maintaining
secure footing and avoiding awkward off-balanced
postures.
►Changing posture during extended tasks may help
avoid discomfort and fatigue.
►In case of persistent or recurring symptoms,
consult a qualified health professional.
WARNING Vibration hazards
Normal and proper use of the machine exposes the
operator to vibration. Regular and frequent exposure
to vibration may cause, contribute to, or aggravate
injury or disorders to the operator’s fingers, hands,
wrists, arms, shoulders and/or nerves and blood
supply or other body parts, including debilitating
and/or permanent injuries or disorders that may
develop gradually over periods of weeks, months, or
years. Such injuries or disorders may include damage
to the blood circulatory system, damage to the
nervous system, damage to joints, and possibly
damage to other body structures.
If numbness, persistent recurring discomfort, burning
sensation, stiffness, throbbing, tingling, pain,
clumsiness, weakened grip, whitening of the skin, or
other symptoms occur at any time, when operating
the machine or when not operating the machine, stop
operating the machine, tell your employer and seek
medical attention. Continued use of the machine after
the occurrence of any such symptom may increase
the risk of symptoms becoming more severe and/or
permanent.
Operate and maintain the machine as recommended
in these instructions, to prevent an unnecessary
increase in vibration.
The following may help to reduce exposure to
vibration for the operator:
►Let the machine do the job. Use a minimum hand
grip consistent with proper control and safe
operation.
►If the machine has vibration absorbing handles,
keep them in a central position, avoid pressing the
handles into the end stops.
►When the percussion mechanism is activated, the
only body contact with the machine you should
have are your hands on the handle or handles.
Avoid any other contact, for example supporting
any part of the body against the machine or
leaning onto the machine trying to increase the
feed force. It is also important not to keep the start
and stop device engaged while extracting the
machine from the broken work surface.
© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
8
LT 800Safety and operating instructions

►Make sure that the rammer shoe is
well-maintained , not worn out, and of the proper
size. Rammer shoes that are not well-maintained,
or that are worn out, or that are not of the proper
size result in longer time to complete a task (and
a longer period of exposure to vibration) and may
result in or contribute to higher levels of vibration
exposure.
►Immediately stop working if the machine suddenly
starts to vibrate strongly. Before resuming the
work, find and remove the cause of the increased
vibrations.
►Never grab, hold or touch the rammer shoe when
using the machine.
►Participate in health surveillance or monitoring,
medical exams and training programs offered by
your employer and when required by law.
►When working in cold conditions wear warm
clothing and keep hands warm and dry.
See the ”Noise and vibration declaration statement”
for the machine, including the declared vibration
values. This information can be found at the end of
these Safety and operating instructions.
WARNING Trapping hazard
There is a risk of neck ware, hair, gloves, and clothes
getting dragged into or caught by rotating machine
parts. This may cause choking, scalping, lacerations,
or death. To reduce the risk:
►Never grab or touch a rotating machine part.
►Avoid wearing clothing, neck ware or gloves that
may get caught.
►Cover long hair with a hair net.
DANGER Electrical hazard
The machine is not electrically insulated. If the
machine comes into contact with electricity, serious
injuries or death may result.
►Never operate the machine near any electric wire
or other source of electricity.
►Make sure that there are no concealed wires or
other sources of electricity in the working area.
WARNING Concealed object hazard
During operating, concealed wires and pipes
constitute a danger that can result in serious injury.
►Check the composition of the material before
operating.
►Watch out for concealed cables and pipes for
example electricity, telephone, water, gas, and
sewage lines.
►If the machine seems to have hit a concealed
object, switch off the machine immediately.
►Make sure that there is no danger before
continuing.
WARNING Involuntary start
Involuntary start of the machine may cause injury.
►Keep your hands away from the start and stop
device until you are ready to start the machine.
►Learn how the machine is switched off in the event
of an emergency.
WARNING Noise hazard
High noise levels can cause permanent and disabling
hearing loss and other problems such as tinnitus
(ringing, buzzing, whistling, or humming in the ears).
To reduce risks and prevent an unnecessary increase
in noise levels:
►Risk assessment of these hazards and
implementation of appropriate controls is essential.
►Operate and maintain the machine as
recommended in these instructions.
►If the machine has a silencer, check that it is in
place and in good working condition.
►Always use hearing protection.
WARNING Slippery machine surface hazard
There is a risk that the machine (for example, the
handles and other surfaces) are slippery due to
grease, oil, or other substances. If the machine is
slippery, there is a risk that you might lose your grip,
drop the machine, and/or come in contact with the
rammer shoe during operation of the machine. Any
such event can cause injury. To reduce this risk:
►Always make sure that the handles and other
gripping surfaces of the machine are not slippery.
►Always make sure that the handles and other
gripping surfaces are free from grease and oil.
Transport, precautions
WARNING Loading and unloading hazard
When the machine is lifted by a crane and similar
appliance, this can lead to injury.
►Use marked lifting points.
►Make sure that all lifting devices are dimensioned
for the weight of the machine.
►Never remain under or in the immediate vicinity
of the machine.
9© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
Safety and operating instructionsLT 800

Maintenance, precautions
WARNING Fuel spill hazard
When the machine is laid down, there is a risk of fuel
spill. This may lead to fire, which can cause injury.
►Make sure that the machine is laid down
horizontally, with the front side down. It must not
differ more than 40 mm (1.6 in.) from the rammer
shoe to the top of the machine.
WARNING Machine modification
Any machine modification may result in bodily injuries
to yourself or others.
►Never modify the machine. Modified machines are
not covered by warranty or product liability.
►Always use original parts and accessories
approved by Atlas Copco.
►Change damaged parts immediately.
►Replace worn components in good time.
CAUTION High temperature
The machine's engine exhaust pipe, and bottom
become hot during operation. Touching them can
lead to burns.
►Never touch a hot machine.
►Never touch the bottom of the machine when its
hot.
►Wait until the engine, exhaust pipe, and bottom of
the machine have cooled down before carrying
out maintenance work.
Storage, precautions
♦Keep the machine in a safe place, out of the reach
of children and locked up.
© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
10
LT 800Safety and operating instructions

Overview
To reduce the risk of serious injury or death to
yourself or others, read the Safety instructions
section found on the previous pages of this
manual before operating the machine.
Design and function
LT rammers are designed for the compaction of fill,
including fill that contains clay.
Applications include house foundations, and bearing
courses for roads and parking areas etc.
They can be used to advantage in pipe trenches and
for compacting round posts etc.
LT rammers must only be used in well-ventilated
areas, as is the case for all combustion engine
machines.
Do not lift the machine in any way during operation,
and do not operate on steeper slopes than those
recommended in this manual.
No other use is permitted. To choose the correct
accessories, see the spare parts list.
Main parts
A
B
C
D
E
F
G
A. Fuel tank
B. Engine throttle wire
C. Fuel filter
D. Air filter
E. Oil dipstick
F. Oil drain plug
G. Spring-loaded leg oil, sight glass
H
II
K
J
H. Silencer
I. Drainage plugs
J. Oil strainer
K. Recoil starter
Labels
The machine is fitted with labels containing important
information about personal safety and machine
maintenance. The labels must be in such condition
that they are easy to read. New labels can be ordered
from the spare parts list.
Atlas Copco Construction Tools AB
105 23 Stockholm, Sweden
Type
Operating mass kg
Rated power kW
Year of Mfg
Product Identification Number
Made in Sweden
Made in Sweden
11© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
Safety and operating instructionsLT 800

Data plate
A. Machine type
B. Product Identification Number
C. The CE symbol means that the machine is
EC-approved. See the EC Declaration of
Conformity which is delivered with the machine
for more information.
Noise level label
WA
xxx
dB
The label indicates the guaranteed noise level
corresponding to EC-directive 2000/14/EC. See
"Technical data" for accurate noise level.
Warning label - Compressed spring package
Read the service manual.
Warning label - Hot surfaces
Never touch the silencer and exhaust system.
Lifting point label
Safety label
♦The operator must read the safety, operation and
the maintenance instructions before operating the
machine.
♦Use ear protectors.
♦Fuel.
Keep upright
Throttle indication
© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
12
LT 800Safety and operating instructions

Transport
WARNING Transport
During transportation the machine can overturn and
cause serious injury.
►Always strap the machine.
►Keep your feet away from the machine.
NOTICE When the machine is laid down, there is
a risk for the oil in the crankcase running into the
combustion chamber and/or the air filter. This leads
to starting difficulties.
♦Make sure that the machine is laid down
horizontally with the front side down. It must not
differ more than 40 mm (1.6 in.) from the rammer
shoe to the top of the machine.
♦Lay the machine down when it is switched off and
not being used.
♦Secure the machine via the lifting hook (A) and
the lower lifting handle (B).
B
A
♦When moving short distances the machine can
be tilted forward, so that it rests on the plastic
wheels on the handle. Lift with the lower lifting
handle (C) and roll the machine forwards or
backwards.
C
Lifting
WARNING Lifting hazard
During lifting the machine can fall down this can
cause serious injury.
►Never walk or stand under a lifted machine.
►Keep your feet away from the machine.
♦Always use the machine's lifting eye (A) to lift the
machine.
A
B
♦The lifting equipment must be in dimensioned in
order to fulfil all regulations. Before lifting check
that lifting eye (A) and rammer shoe (B) are
correctly attached and not damaged.
Installation
Fuel
Filling
WARNING Fuel hazard
The fuel is extremely flammable and fuel fumes can
explode when ignited, causing serious injury or death.
►Protect your skin from contact with the fuel.
►Never remove the filler cap or fill the fuel tank
when the machine is hot.
►Never smoke when filling the fuel tank or when
working with the machine or servicing it.
►Avoid spilling fuel and wipe off any fuel spilled at
the machine.
13© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
Safety and operating instructionsLT 800

Filling procedure
1. Stop the engine and let it cool down before filling
the tank.
2. Release the filler cap slowly to let any pressure
escape.
3. Fill the fuel tank to the lower edge of the filler
pipe.
4. Never overfill the tank. Due to the movement of
the fuel within the tank, it is possible to have fuel
at a higher level than the tank cap, which can
lead to a spillage of fuel if the tank cap is opened.
This can be avoided by only opening the tank
cap, when the machine is tilted and the tank cap
is at the fuel tank's highest point.
Operation
WARNING Involuntary start
Involuntary start of the machine may cause injury.
►Keep your hands away from the start and stop
device until you are ready to start the machine.
►Learn how the machine is switched off in the event
of an emergency.
Start and stop
Before starting
Follow the general safety precautions supplied with
the machine at delivery. We recommend that you
study the engine manual supplied with the machine.
Check that the maintenance routines have been
carried out.
♦Check the engine oil level on the dipstick. The
rammer must be standing straight up when the oil
level is checked.
♦Fill the fuel tank with fuel.
♦Check that all the controls are working.
♦Make sure that there is no oil leakage, and that
all bolted joints are tightened.
© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
14
LT 800Safety and operating instructions

Starting the engine
1. Set the throttle control (A) to half revs.
A
2. Pull out the starter rope (B) until resistance is
felt. Release the handle so the starter rope goes
back again, and then pull the starter rope until
the engine starts.
B
3. Set the throttle in idle position and allow the
engine to idle for a few minutes before increasing
to full power.
If the exhaust begins to emit white smoke, after
several attempts of starting, do the following:
1. Move the throttle control to the stop position.
2. Slowly pull the starting cable out 5 times.
3. Repeat the starting procedure.
Stopping the engine
1. Set the throttle control (A) in idle position. Let the
engine run for a few minutes.
2. Set the throttle control (A) in the stop position.
A
Operating
NOTICE During operation, the engine must always
work at full throttle (working mode).
NOTICE When operating in narrow trenches, there
is a risk of the rammer leg fastening between the
trench walls. The rammer can then miss-strike and
become damaged. The rammer shoe in particular
could be severely damaged. When operating in
trenches, make sure that they are wide enough
before starting.
♦Operate the rammer on a level surface.
♦Never operate on hard surfaces (solid rock,
hardened concrete etc).
♦Steer the machine with the handle.
♦Excessive pressure on the handle will result in
poor compaction by obstructing the vibratory
action.
♦The rammer must not be pressed down into the
material being compacted.
♦If the machine tips over during operation, switch
off the engine before lifting it up.
15© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
Safety and operating instructionsLT 800

Operating
♦Set the throttle control (A) to full revs and the
rammer will start to move forward.
Steer the rammer with the handle (B).
A
B
♦Make sure the rammer shoe (C) is impacting
parallel to the ground.
C
♦Never overload or force the machine.
When taking a break
♦Stop the machine during breaks.
♦During all breaks you must put the machine away
so that there is no risk for unintentional start.
Maintenance
Regular maintenance is a basic requirement for the
continued safe and efficient use of the machine.
Follow the maintenance instructions carefully.
♦Before starting maintenance on the machine, clean
it in order to avoid exposure to hazardous
substances. See “Dust and fume hazards”
♦Use only authorised parts. Any damage or
malfunction caused by the use of unauthorised
parts is not covered by warranty or product liability.
♦When cleaning mechanical parts with solvent,
comply with appropriate health and safety
regulations and ensure there is satisfactory
ventilation.
♦For major service of the machine, contact your
nearest authorised workshop.
♦After each service, check that the machine's
vibration level is normal. If not, contact your
nearest authorised workshop.
NOTICE Never aim a water jet directly at the fuel
filler cap. This is particularly important when using a
high-pressure cleaner.
Cleaning the machine
♦Do not spray water directly onto electrical
components or the instrument panel.
♦Place a plastic bag over the fuel filler cap and
secure with a rubber band. (This will prevent water
from entering the venting hole in the filler cap.
Otherwise this could cause operational
disturbances, such as clogged filters.)
Every 10 hours of operation
(daily)
Daily maintenance routines before starting up:
♦Check that leakages or other faults are detected
and rectified.
♦Check the ground under the machine. Leakages
are more easily detected on the ground than on
the machine itself.
♦Check and replenish fuel and engine oil. See the
engine manual for more information.
♦Check and clean the air filter.
♦Check the tightness of all nuts and bolts.
♦Check that the machine is clean.
♦Check or clean the engine's cooling flanges. See
the engine manual for more information.
♦Check that the controls are not damaged or do
not jam.
© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
16
LT 800Safety and operating instructions

♦Check the oil level in the spring-loaded leg.
♦Tighten the bolt joints on the rammer shoe.
Checking the oil level
Check the oil level on the dipstick.
Checking the oil level in the spring-loaded
leg
Check the oil level in the spring-loaded leg through
the sight glass (A).
The level must be at the middle of the sight glass
when the machine is in the upright position.
Check and clean the air filter
A
Check and clean the air filter (A).
Checking bolted joint
Check and if necessary tighten screws and nuts.
After the first 20 hours of
operation
The following maintenance must be performed after
the first 20 hours of operation:
♦Change the oil in the spring-loaded leg.
♦Change the engine oil.
♦Clean the oil strainer. See the engine manual for
more information.
♦Clean and replace air filter. See the engine manual
for more information.
♦Check and adjust the engine valve clearance. See
the engine manual for more information.
♦Tighten the bolt joints on the rammer shoe.
17© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
Safety and operating instructionsLT 800

Changing the engine oil
1. Unscrew the drainage plug (A).
A
B
2. Tilt the machine sideways and let the oil drain in
a drainage hose.
3. Clean around the drainage plug (A).
4. Screw on the drainage plug (A).
5. Refill with oil at (B) and refit the dipstick.
6. Start the engine and allow the engine to idle for
a few minutes before increasing to full power.
Changing the oil in the spring-loaded leg
1. Unscrew the oil drain plug (A).
2. Empty the oil into a container.
3. Refit the plug and tighten, make sure that the
sealing washer is undamaged.
4. Remove the sight glass (B) and fill with new oil.
5. Refit the sight glass and tighten. The oil level
must be at the middle of the sight glass.
Every 100 hours of operation
(weekly)
Maintenance routines:
♦Replace air filter.
♦Lubricate the engine throttle wire and all controls.
Lubricate controls
A
Lubricate controls and the engine throttle wire (A).
Every 500 hours of operation
(yearly)
Maintenance routines
Applies to all:
♦Change oil in the engine.
♦Change the oil in the spring-loaded leg.
♦Drain the fuel system of water.
♦Adjust valve clearance for intake and exhaust
valves. See engine manual for more information.
♦Clean and check fuel filter and fuel tank. See
engine manual for more information.
♦Clean the oil strainer. See engine manual for more
information.
♦Clean the engine's cooling flanges. See engine
manual for more information.
♦Check the fuel injection pump. See engine manual
for more information.
♦Check the injection nozzle. See engine manual
for more information.
♦Replace piston rings. See engine manual for more
information.
© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
18
LT 800Safety and operating instructions

Disposal
A used machine must be treated and disposed of in
such a way that the greatest possible portion of the
material can be recycled and any negative influence
on the environment is kept as low as possible, and
in accordance with local restrictions.
Before a fuel driven machine is deposited it must be
emptied and cleaned of all oil and fuel. Remaining
oil and fuel must be dealt with in a way that does not
adversely affect the environment.
Always send used filters, drained oil and fuel
remnants to environmentally correct disposal.
Storage
♦Empty the tank before storing the machine.
♦Clean the machine. Remove clay and sand from
the shoe.
♦Clean the air filter.
♦Carefully pull the start handle until you feel a slight
resistance.
♦Wipe off any oil and dust that has accumulated
on the rubber parts.
♦Apply a light coat of oil on the shoe to prevent it
from rusting.
♦Cover the machine and store it in a dry, dust-free
area.
19© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
Safety and operating instructionsLT 800

Technical data
Machine data
Rammer leg width 330 mm (13 in.)Rammer leg width 280 mm (11 in.)LT 800
Engine
Hatz 1B20, manual startHatz 1B20, manual startManufacture/Model
3 (4.0)3 (4.0)Power kW (hp)
3,0503,050Rated speed (r.p.m)
1,0001,000Idling (r.p.m)
Compaction data
12 (720)12 (720)Vibration frequency, Hz (r.p.m)
75-85 (2.9-3.3)75-85 (2.9-3.3)Amplitude, mm (in)
Performance
13-16 (43-52)13-16 (43-52)Working speed m/min (feet/min)
Fluid volumes
3.0 (3.2)3.0 (3.2)Fuel tank capacity, litres (qts)
0.9 (0.95)0.9 (0.95)Engine oil, litres (qts)
0.7 (0.74)0.7 (0.74)Fuel consumption, l/h (qts/h)
0.9 (0.31)0.3 (0.31)Rammer leg, l (qts)
Lubricants
Use diesel oil that complies with EN 590 or
DIN 51601
Use diesel oil that complies with EN 590 or
DIN 51601
Fuel type
Shell Rimula R4 L 15W-40Shell Rimula R4 L 15W-40Engine oil
Shell Rimula R4 L 15W-40Shell Rimula R4 L 15W-40Rammer leg oil
Weights and volumes
84 (185)83 (183)Weight, kg (lbs)
85 (187)84 (185)Operating weight, EN500, kg (lbs)
Noise and vibration declaration statement
Guaranteed sound power level Lw according to ISO 3744 in accordance with directive 2000/14/EC.
Sound pressure level Lp according to ISO 11201, EN500-4:2006+A1:2009.
Vibration value determined according to ISO 20643, EN500-4:2006+A1:2009. See table ”Noise and vibration
data” for the values etc.
These declared values were obtained by laboratory type testing in accordance with the stated directive or
standards and are suitable for comparison with the declared values of other machines tested in accordance
with the same directive or standards. These declared values are not suitable for use in risk assessments and
values measured in individual work places may be higher. The actual exposure values and risk of harm
experienced by an individual user are unique and depend upon the way the user works, in what material the
machine is used, as well as upon the exposure time and the physical condition of the user, and the condition
of the machine.
We, Atlas Copco Construction Tools AB, cannot be held liable for the consequences of using the declared
values, instead of values reflecting the actual exposure, in an individual risk assessment in a work place situation
over which we have no control.
This machine may cause hand-arm vibration syndrome if its use is not adequately managed. An EU guide to
managing hand-arm vibration can be found at http://www.humanvibration.com/humanvibration/EU/VIBGUIDE.html
We recommend a programme of health surveillance to detect early symptoms which may relate to vibration
exposure, so that management procedures can be modified to help prevent future impairment.
© 2011 Atlas Copco Construction Tools AB | No. 9800 1139 01 | 2011-04-01
Original instructions
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LT 800Safety and operating instructions