Dynapac LT800 Manual

Vibratory Tamper
LT800
Operation & Maintenance
ILT800EN3
Diesel Engine:
Hatz 1B20
These instructions apply from:
PIN (S/N): *78000001*
Reservation for changes.
Printed in Sweden (safety instructions included).

2LT800 ILT800EN3
The safety instructions are included in this
manual and must be studied by the operator.
Always follow the safety rules and keep the
manual available for future use.
Read through the entire manual before
starting any maintenance operations.
Ensure good ventilation (air extraction) if the
engine is run indoors.
WARNING: Indicates danger or hazardous
procedure that could lead to serious or mortal
injury if the warning is neglected.
CAUTION: Indicates danger or hazardous
procedure that could lead to machine or property
damage if the warning is neglected.
CONTENTS
WARNING SYMBOLS
SAFETY INSTRUCTIONS
CALIFORNIA
Proposition 65 Warning
Diesel engine exhaust and some of its
constituents are known to the State of
California to cause cancer, birth defects,
and other reproductive harm.
Page
General ............................................................................ 3
Machine plate .................................................................. 3
CE marking and Declaration of conformity ................... 4
Safety instructions (For all Light products) ................. 5-7
Safety decals, location/description ........................... 8, 9
Fuel and lubricants ........................................................ 10
Technical data.......................................................... 11-12
Technical data - Dimensions ........................................ 13
The machine's range of applications ........................... 14
Operation ................................................................ 15, 16
Instructions for lifting ...................................................... 17
Long time storage ......................................................... 18
Maintenance – Service points ................................ 19, 20
Maintenance – Every 10 hours of operation ............... 21
Maintenance – Every 100 hours of operation ............. 22
Maintenance – Every 300 hours of operation ............. 23
Maintenance – Every 1000 hours of operation ........... 23
Troubleshooting ............................................................ 24

3
LT800 ILT800EN3
Fill in all data below, when delivering and
commissioning the machine.
....................................... ......................................
Engine Model Engine Number
It is important that the machine is maintained correctly to
ensure proper function. It should be kept clean so that
any leakage, loose bolts and loose connections can be
discovered in time.
Make a habit of inspecting the machine every day before
starting up by checking all round it to detect any sign of
leakage or other faults.
SPARE A THOUGHT FOR THE ENVIRONMENT!
Do not let oil, fuel and other environmentally haz-
ardous substances contaminate the environment.
Always dispose of used filters, drained oil and any
remaining fuel properly.
This manual contains instructions for periodic attention
which should normally be carried out by the operator.
There are additional instructions relating to the
engine, for which the manufacturer’s instructions
are detailed in the engine manual.
GENERAL
MACHINE PLATE
L000193B

4LT800 ILT800EN3
CE MARKING AND DECLARATION OF CONFORMITY
(Applies to machines marketed in EU/EEC)
This machine is CE marked. This shows that on
delivery it complies with the basic health and safety
directives applicable for the machine in accordance
with machinery directive 2006/42/EC and that it also
complies with other directives applicable for this
machine.
A ”Declaration of conformity” is supplied with this
machine, which specifies the applicable directives and
supplements, as well as the harmonized standards
and other regulations that are applied.

5
LT800 ILT800EN3
SAFETY INSTRUCTIONS (FOR ALL LIGHT PRODUCTS)
Safety equipment
Long exposure to loud noise without
ear protectors can cause permanent
damage to hearing.
Long exposure to vibrations can dam-
age the hands, fingers and wrists. Do
not use the machine if you experience
discomfort, cramp or pain. Consult a
doctor before resuming work with
the machine.
Always use approved safety equipment. The
operator, and people in the immediate vicinity of
the working area, must wear:
• Safety helmet
• Safety goggles
• Ear protectors
• Dust mask in dusty environments
• High-visibility clothing
• Protective gloves
• Protective shoes
Avoid wearing loosely fitting clothing that might
get caught in the machine. If you have long hair,
cover it with a hair net. Vibrations from hand-held
machines are transmitted into the hands via the
handles of the machine. Dynapac’s machines
are equipped with vibration-relieved handles.
However, depending on operation, the course
and the duration of exposure, the recommended
limit values for hand and arm vibration may be
exceeded. Take suitable measures as neces-
sary—wear protective gloves, do not vibrate
already compacted material, etc. Be alert to
acoustic signals from other machines in the
working area.
Working area
Do not use the machine near flammable material
or in explosive environments. Sparks can be
emitted from the exhaust pipe, and these can
ignite flammable material. When you take a pause
or have finished working with the machine, do not
park it on or near flammable materials. The ex-
haust pipe can get very hot during operation, and
can cause certain material to ignite. Make sure
that there are no other personnel inside the work-
ing area while the machine is in use. Keep the
worksite clean and free of extraneous objects.
Store the machine in a safe place, out of unauthor-
ized’s reach, preferably in a locked container.
Symbols
The signal words WARNING and CAUTION
used in the safety instructions have the
following meanings:
WARNING: Indicates danger or
hazardous procedure that could
lead to serious or mortal injury if
the warning is neglected.
CAUTION: Indicates danger or haz-
ardous procedure that could lead to
machine or property damage if the
warning is neglected.
Important rules for your safety
The machine must not be modified
without the prior consent of the ma-
nufacturer. Use only original parts.
Use only the accessories recommen-
ded by Dynapac. If modifications not
approved by Dynapac are carried out,
these could result in serious injury to
yourself or other personnel.
• These recommendations are based on
international safety standards.
• You must also observe any local safety
regulations which may be in force. Read all
instructions carefully before operating the
machine. Keep the instructions in a safe place.
• Signs and stickers giving important information
about safety and maintenance are supplied
with every machine. Make sure that they are
always legible. The ordering numbers for new
stickers can be found in the spare parts list.
• Use of the machine and its accessories is
restricted to the applications specified in the
product literature.
• For reasons of product safety, the machine
must not be modified in any way.
• Replace damaged parts immediately.
Replace all wear parts in good time.
Be alert
Always pay attention to what you are doing, and
use your common sense. Do not use the ma-
chine if you are tired or under the influence of
drugs, alcohol or other substances which can
effect your vision, reaction ability or judgement.

6LT800 ILT800EN3
SAFETY INSTRUCTIONS (FOR ALL LIGHT PRODUCTS)
Always take extreme care when dri-
ving the machine on slopes. Always
drive straight up and down on slo-
pes. Do not exceed the maximum gra-
dability of the machine according to
the instruction book. Stay clear of
machine when operating on a slope
or in a trench.
Do not touch the engine, the exhaust pipe or
the eccentric element of the machine. They
gets very hot during operation and can cause
burn injuries.
Do not touch V-belts or rotating parts during
operation.
Parking
Park the machine on ground as level and firm
as possible. Before leaving machine:
• Apply the parking brake.
• Shut off the engine and pull the ignition key
out.
Loading/Unloading
Never remain under or in the
immediate vicinity of the machine
when it is lifted by a crane. Only use
marked lifting points. Always make
sure that all lifting devices are
dimensioned for the weight of the
products.
Maintenance
Maintenance work must only be carried out by
skilled personnel. Keep unauthorized persons
away from the machine. Do not carry out mainte-
nance work while the machine is moving or the
engine is running.
Filling with fuel (Gasoline/diesel)
Petrol has an extremely low flash-
point and can be explosive in certain
situations. Do not smoke. Make sure
that worksite ventilation is good.
Keep away from all hot or spark-generating
objects when handling fuel. Wait until the ma-
chine has cooled before filling the tank. Fill the
tank at least 3 metres away from where you
intend to use the machine. Avoid spilling petrol,
diesel or oil on the ground. Protect your hands
from contact with petrol, diesel and oil.
Open the tank cap slowly to release any
overpressure that might exist in the tank. Do
not overfill the tank. Inspect the machine for
fuel leakage regularly.
Do not use a machine that is leaking fuel.
Starting the machine
Before starting read instruction
book and make your self familiar
with the machine and make sure
that:
• All handles are free from grease, oil and dirt.
• The machine does not show any obvious
faults.
• All protective devices are securely fastened in
their places.
• All control levers in ”neutral” position.
Start the machine according to the instruction-
book.
Operation
Keep your feet well clear of the
machine.
Do not operate the machine in
poorly ventilated spaces. There is a
risk of carbon monoxide poiso-
ning.
Use the machine only for the purpose for which
it is intended. Make sure you know how to stop
the machine quickly in the event of an emer-
gency situation.

7
LT800 ILT800EN3
SAFETY INSTRUCTIONS (FOR ALL LIGHT PRODUCTS)
Working with the hydraulic system
Regular maintenance of the hydraulic system is
important. Minor damage or a split hose or cou-
pling can have devastating consequences. Bear
in mind that the hydraulic hoses are made of
rubber and can deteriorate with age, which can
result in splitting. In all cases of uncertainty with
regard to durability or wear, replace the hoses
with new original hoses from Dynapac.
Working with battery
The battery contains poisonous and corrosive
sulphuric acid. Wear protective glasses and
avoid getting acid on your skin, clothes or on the
machines. If you get sulphuric acid on yourself,
rinse the skin with water. If you get acid in your
eyes, rinse them with water for at least 15 min-
utes and seek immediate medical treatment. The
gas that is emitted by the battery is explosive.
When fitting or replacing a battery, always take
care so that you do not short- circuit the battery
poles.
Repair
Never use a machine that is damaged. Qualified
repair work requires trained personnel, please
contact your nearest authorized workshop.
Extinguishing fires
If there is a fire in or on the machine, it is best
to use an ABE-class fire extinguisher.
However, a BE-class CO2extinguisher is
also suitable.

8LT800 ILT800EN3
SAFETY DECALS, LOCATION/DESCRIPTION
451
2
L000192B
6
3

9
LT800 ILT800EN3
SAFETY DECALS, LOCATION/DESCRIPTION
When the machine needs to be laid down for storage or transportation, be sure that it is laid
horizontal with front down. It may not differ more than 40 mm (1.6 in) from one side to the
other. Laying the machine in other direction may cause a fuel spill, which may lead to fire. It
may also cause the oil in the crankcase to enter the combustion chamber and/or the air
cleaner causing starting difficulties.
5.
904977
Lifting
point
Fuel
Use ear
protectors
The operator is urgently
requested to read the safety
manual, and the operation
and maintenance instructions
before using the machine.
Warning: hot surfaces in
the exhaust system. Do not
touch the exhaust silencer
1.
2. 4.
791295
107
6.
Guaranteed Sound
Power level
Compressed spring assem-
bly. Read the service manual.
3.

10 LT800 ILT800EN3
Service parts P/N
Hatz 1B20
Engine air filter element 93 81 50
Engine oil filter 93 70 01
Engine fuelfilter 93 78 73
Stop the engine before refilling the fuel tank.
Never refuel near an open flame or sparks
which could start a fire. Don't smoke. Use
pure fuel and clean filling equipment. Take
care not to spill fuel.
ENGINE OIL Use SAE 15W / 40:
0,9 lit. (0.9 qts) Shell Universal Engine Oil
RAMMING Use SAE 15W / 40:
CYLINDER OIL 0,9 lit. (0.9 qts) Shell Universal Engine Oil
FUEL Use diesel oil which satisfy EN 590 or DIN 51601
3,0 lit. (3.2 qts)
FUEL AND LUBRICANTS

11
LT800 ILT800EN3
LT 800 (11") LT 800 (13")
Weight
Operating weight, kg (lbs) 84 (185) 85 (187)
Compaction data
Vibr. frequency, Hz 12 12
Vibr. frequency, vpm 720 720
Lenght of stroke, mm (in) 65-75 (2.5-2.9) 65-75 (2.5-2.9)
Operating data
Speed of travel, m/min (feet/min) 13-16 (43-52) 13-16 (43-52)
Volumes
Fuel tank, lit. (qts) 3,0 (3.2) 3,0 (3.2)
Crank case, lit. (qts) 0,9 (0.9) 0,9 (0.9)
Excentercylinder, lit. (qts) 0,9 (0.9) 0,9 (0.9)
Fuel consumtion, l/h (qts/h) 0,7 (0.74) 0,7 (0.74)
Engine
Model Hatz Hatz
1B20 1B20
Manual start Manual start
Output, kW (hp) 3 (4.0) 3 (4.0)
Engine speed, vpm 3050 3050
TECHNICAL DATA

12 LT800 ILT800EN3
TECHNICAL DATA
Noise levels

13
LT800 ILT800EN3
LT 800 (11") LT 800 (13")
Amm (inch) 810 (31.9) 810 (31.9)
Bmm (inch) 330 (13.0) 330 (13.0)
Cmm (inch) 1074 (42.3) 1074 (42.3)
Dmm (inch) 422 (16.6) 422 (16.6)
Emm (inch) 280 (11.0) 330 (13.0)
Contact area,
m2 (sq feet) 0,065 (0.70) 0,075 (0.81)
CONTACT
AREA
TECHNICAL DATA - DIMENSIONS
E
B
C
A
D
L000192B L000194B

14 LT800 ILT800EN3
THE MACHINE’S RANGE OF APPLICATIONS
Dynapac LT vibratory rammers are designed for the
compaction of fill, including also fill that contains clay.
Applications include house foundations, and bearing
courses for roads and parking areas etc.
It 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.
When operating LT rammers follow the instructions in
the manual, and do not sit or hang from the machine
when it is working.
This will interfere with the machine’s functionality and
result in inferior compaction, and may also damage
the machine.
Do not lift the machine in any way when it is in
operation, and do not operate on steeper slopes than
what is recommended in this manual.

15
LT800 ILT800EN3
73
L000183B
1. Fill the fuel tank.
Tankvolume 3,0 lit. (3.2 qts)
Before start
Starting the engine
2. Check the engine oil level.
Oil volume 0,9 lit. (0.9 qts)
2
3. Set speed control lever to max. START position.
Min.
Max.
OK
Working mode Start
Stop
6
5
4
4. Pull the starting cable out by the handle until you
feel a slight resistance. Let the cable run back; in
this way the entire length of the starting cable can
be used to start the engine.
5. Grip the handle with both hands.
6. Commence pulling the starting cable vigorously and
at an increasing speed (do not jerk it violently) until
the engine starts.
If after several attempts of starting the exhaust
begins to emit white smoke, move the speed
control lever to the stop position and pull the
starting cable out slowly 5 times. Repeat the
starting procedure.
7. After the engine starts, set the speed lever to the
idle position and warm it up without load for a few
minutes.
L000077A
L000195A
OPERATION
1
L000190B

16 LT800 ILT800EN3
73
L000183B
1. Move the throttle to the working mode and the
tamper will begin to move.
During operation, the engine must always
work at full throttle (working mode).
Stopping the engine
1. Throttle in idle position. Let engine run a few minutes.
2. Throttle in stop position.
2. Guide the tamper with guide handle.
3. Take care that the shoe hits parallel to the ground.
4. Do not fight or overpower the machine.
Never work on hard surfaces (solid rock,
hardened concrete or such). When wor-
king in trenches always make sure that they
are wide enough. When working in a nar-
row trench, it the ramming shoe should get
caught between the walls of the trench, the
rammer may mis-strike and can be severely
damaged. The ramming shoe may especial-
ly be damaged severely. Make certain that
the rammer is steared only by using the
hand grip. It should only be pushed. The
rammer must not be pressed into the mate-
rials being compacted. Excessive pressure
to the operation handle will lead to the
unsatisfactory compaction due to the fact
that the jumping action is hindered. If the
machine falls over while working, switch
off the engine before raising it.
3
Stop
Working mode Start
Stop
Working mode Start
L000192A
OPERATION
2
L000191B
L000185B
2
1
Operating

17
LT800 ILT800EN3
Keep well clear of the hoisted machine.
Use only the frame lifting hook (1) for lifting the
machine.
All lifting devices must be dimensioned in order
to fullfil all regulations. Before lifting check that
ramming shoe is correctly attached and not
damaged.
The weight is noted on the machine data plate; see the
"Machine data plate" section.
Lay the machine down when switched off and
not in use.
Transport and liftning
Transport handle
Always lash the machine securely for all
transportation.
Secure the machine in the lifting hook and the
lower lifting handle.
For moving short distances, the machine can be
tilted forward so that it rests on the plastic wheels on
the handle. Lift the transport handle and roll the
machine forward or backward.
Keep your feet clear of the machine.
L000189A
INSTRUCTIONS FOR LIFTING
1
L000187B

18 LT800 ILT800EN3
1. Clean the machinery. Remove mud and dirt from
the ramming shoe.
2. Clean the air cleaner.
3. Drain all fuel from the fuel tank and carbu-
retor. Collect the contents in a receptacle
and dispose of it properly.
4. Pull the starter grip lightly until pressure is felt.
5. Clean up oil and dust accumulation on rubber parts.
6. Apply a light coat of oil on the ramming shoe to
prevent rust formation.
7. Put the cover entirely on the machine, and store the
machine in dry, dust-free area.
L000196A
LONG TIME STORAGE

19
LT800 ILT800EN3
Every 10 hours of operation (daily)
Fig. 1
1. Fuel tank
2. Fuel filter
3. Air filter
4. Oil dipstick
5. Engine oil filter
6. Oil drain plug
7. Rammer oil sightglass
8. Engine throttle wire
Item in fig.1 Maintenance see page Comments
1 Check and replenish fuel 15
4 Check and replenish engine oil 21
Check for oil leakage
Check/retighten bolted joints (rammer foot) 21
3 Check air cleaner elements 21
7 Check ramming system lubrication with
sight glass 21
Item in fig.1 Maintenance see page Comments
6 Change engine oil 22
5 Clean / replace oil filter See engine manual
3 Clean / replace air cleaner elements See engine manual
Check and adjust the engine valve clearance See engine manual
7 Change oil in the eccentric element after
the first 20 hours of operation.
Change oil in the eccentric element
after the first 20 hours of operation.
The first 20 hours of operation
MAINTENANCE – SERVICE POINTS
L000193B
1
8
2
3
5
6
7
4

20 LT800 ILT800EN3
Item in fig.1 Maintenance see page Comments
Lap intake and exhaust valves See engine manual
Replace piston rings See engine manual
7 Change ramming system oil 23
Every 1000 hours of operation
Item in fig.1 Maintenance see page Comments
6 Change engine oil 23
5 Clean / replace oil filter See engine manual
Check fuel injection pump See engine manual
Check fuel injection nozzle See engine manual
Adjust valve head clearance for intake
and exhaust valves See engine manual
2 Change fuel filter and clean the fuel tank See engine manual
Every 300 hours of operation
Item in fig.1 Maintenance see page Comments
3 Clean / replace air cleaner elements 22 See engine manual
8 Lubricate the engine throttle wire and
all control 22
Every 100 hours of operation
MAINTENANCE – SERVICE POINTS