LAMETAL Stark THM 2500 Manual

Original
Operating and maintenance
manual
Back broom (2500, 3000)

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General
Congratulations on the purchase of your STARK Back broom!
For us, the long lifecycle and efficiency of your new equipment is a priority. To keep the broom in top working condition,
read this manual carefully before using the equipment.
STARK products are engineered and manufactured in Finland, and each of them is equipped according to the needs of
the customer.
Never let anyone operate or maintain the device without reading this manual carefully! Always make sure that safety
precautions are observed in use and maintenance. Keep this manual for future reference and make sure to hand it over
to a new owner.
The cornerstones of the product development of STARK attachments are quality, durability and economy. The products
are engineered to be high-performing, safe and durable in professional use. Any feedback on our products is welcome
and contributes to the further development of our products. If you have any questions about the use or maintenance of
the broom, please contact us by e-mail: [e-mail]
Visit our webpage www.stark.fi for the complete product range, including new products.
The manufacturer reserves the right for structural and technical changes without prior notice. Therefore, some pieces of
information given in the manual may have changed after printing this manual.
Read before use
Make sure you know your equipment before you start using it.
Equipment may be operated only by an individual who is thoroughly familiar with its use.
All operators must be properly instructed before use and maintenance of the equipment. Use by
individuals with insufficient instructions may pose serious risks to the operators themselves, to the
environment and the equipment.
When coupling the attachment to the base machine, make sure:
-that all locking cotters are intact and in order
-there is no pressure in the hydraulic system
-that hydraulic hoses are intact
-there is no skin contact to hydraulic oil when connecting hydraulic hoses
-not to pull by the hydraulic hoses, but only by the hydraulic fitting
During operation, pay attention to:
-safe, appropriate travel speed
-other traffic, people and animals
-danger zones and objects that block your view
-children
NEVER use the machine, if there is someone in the danger zone.
NEVER go under the attachment.

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Table of contents
General.................................................................................................................................................2
Read before use ...................................................................................................................................2
1. DECLARATION OF CONFORMITY ..................................................................................................4
2. PURPOSE OF USE ..........................................................................................................................5
3. SAFETY PRECAUTIONS ..................................................................................................................5
4. IDENTIFICATION INFORMATION AND SPAREPARTS.....................................................................6
4.1. Identification plate ............................................................................................................................ 6
4.2. Maintenance services........................................................................................................................ 6
5. MAIN PARTS OF THE BACK BROOM .............................................................................................7
6. USING THE BACK BROOM.............................................................................................................8
6.1. Attaching the broom to the base machine........................................................................................ 8
7. OPERATING THE BACK BROOM ....................................................................................................9
7.1. Using the back broom........................................................................................................................ 9
7.2. Overload switch............................................................................................................................... 10
7.3. Changing the brush rings................................................................................................................. 11
7.4. Adjusting the chains ........................................................................................................................ 12
7.5. Removing the back broom from the base machine........................................................................ 13
7.6. Transferring the back broom........................................................................................................... 13
8. MAINTENANCE OF THE BACK BROOM .......................................................................................14
8.1. General safety precautions for the use and maintenance.............................................................. 14
8.2. Tightening torque............................................................................................................................ 14
8.3. Daily maintenance........................................................................................................................... 14
8.4. Maintenance after first 10 hours of operation ............................................................................... 14
8.5. Maintenance at 50-working hour intervals or on a weekly basis ................................................... 14
8.6. Lubrication points............................................................................................................................ 15
8.7. Adding oil to the angle gearbox....................................................................................................... 16
8.8. Propeller shafts................................................................................................................................ 17
9. HYDRAULICS................................................................................................................................18
10. WARRANTY POLICY .................................................................................................................20

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1. DECLARATION OF CONFORMITY
The original manufacturer’s EC declaration of conformity:
Generic product name: Back broom
Models: STARK THM 2500, THM 3000
Manufacturer:
Lametal Ltd
Kaskenviertäjäntie 2 73100 LAPINLAHTI, Finland
tel. [phone]
Declares that the above-mentioned equipment meets the provisions of Directive 2006/42/EC on machinery and, where
applicable, comply with the standards
•SFS-EN ISO 12100-1,
•SFS-EN ISO 12100-2
•SFS-EN 1050
The person authorized to compile technical documentation:
Lassi Mehtonen
Managing director
Kaskenviertäjäntie 2
73100 Lapinlahti, FINLAND

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2. PURPOSE OF USE
The back brooms are intended for sweeping of streets, yards and areas small and large.
3. SAFETY PRECAUTIONS
Make sure you know your equipment before you start using it. Equipment may be operated
only by an individual who is thoroughly familiar with its use.
Before connecting hydraulics to the base machine, make sure that:
-there is no-one between the attachment and the base machine
-the base machine is turned off and the parking brake is on.
When coupling the attachment to the base machine, make sure that:
-all locking cotters are intact and in order
-hydraulic hoses are intact
-there is no skin contact to hydraulic oil when connecting hydraulic hoses
-you do not to pull by the hydraulic hoses, but only by the hydraulic fitting.
During operation, pay attention to:
-safe, appropriate travel speed
-other traffic, people and animals
-danger zones and objects that block your view
-children
-use of turn signal when driving
NEVER use the machine, if there is someone in the danger zone
NEVER go under the attachment
WARNING! Rotating rollers!
During maintenance, the hydraulics of the base machine MUST be turned off. The base machine MUST also be turned
off and the parking brake MUST be applied. The equipment must be properly supported, if maintenance can only be
performed by going under the equipment. Never go under the equipment if it is not properly supported.
Daily maintenance:
-check general condition of structures, make repairs if needed
-check the hydraulic hoses and fittings, and replace damaged parts
After every 50 hours of operation:
-lubricate points specified in later section of this manual
-check all bolts and nuts for tightness
Check all bolts, nuts and hydraulic fittings for tightness after the first day of operation!
If the equipment is not likely to be used for a longer period of time, clean it thoroughly after use and lubricate as
instructed.
WARNING! Pressurized hydraulic hoses and components!

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4. IDENTIFICATION INFORMATION AND
SPAREPARTS
4.1. Identification plate
Identification plate is placed on the side of the equipment. The plate includes contact information, machine type, year of
manufacture, serial number and weight. (See an example of an identification plate in picture 1 below).
The first four numbers in the serial number indicate the month and year of manufacture (month first). The remaining five
numbers constitute the machine tracking number, which is stored in the manufacturer’s database (13971 in the example
below).
Picture 1. Identification plate
Take down the machine type and the serial number of your back broom:
Product and model _______________________________Serial number___________________________________
4.2. Maintenance services
When replacing parts, use original, manufacturer spare parts only. By using original spare parts, you ensure dependable
operation of the back broom and comply with the warranty policy. To facilitate the supply of spare parts, always inform
the manufacturer/retailer of the model and serial number of the back broom (marked in the identification plate) when you
order spare parts.
For more information on maintenance and spare parts, please contact the STARK maintenance and spare part services
or your retailer.
Contact information for STARK maintenance services:
tel. [phone], e-mail [e-mail]
tel. [phone], e-mail [e-mail]

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5. MAIN PARTS OF THE BACK BROOM
Picture 2. Main parts of the back broom
1) Back broom’s frame
2) Propeller shaft
3) Angle gear box
4) Front propeller shaft
5) Rotating triangle
6) Hydraulic cylinder
7) Broom roller
8) Chain
9) Brush ring
10) Chain’s protective plate

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6. USING THE BACK BROOM
When attaching the back broom for the first time, make sure it is compatible with the base machine by following the
instructions below. Always check the compatibility when attaching the back broom to a new base machine.
Make sure that the base machine allows the installation of the back broom. The back broom is attached to the base
machine’s rear lifter.
Minimum requirements of the base machine:
-3-point attachment
-2-action hydraulic valve for rotating the broom. Broom has ½” connectors.
-The broom is attached to 540 rpm outing by propeller shaft.
6.1. Attaching the broom to the base machine
The back broom is attached to the back of the base machine by 3-point attachments. The machine is connected to a
hydraulic system. Hydraulic circuit diagrams can be found in a later section in this manual.
Before using the back broom, MAKE SURE all locking cotters are secured and intact.
When coupling back broom to the base machine, please pay attention to the instructions on the use of the base
machine.
1. Make sure that the attachment and the base machine are compatible in terms of mechanical solutions, hydraulics and
electricity.
2. Make sure there is no pressure in the base machine hydraulic system. When connecting, always make sure the
hydraulic connectors are clean and the hoses are intact.
3. Reverse the base machine near the broom. Attach the support beams to the broom. Apply parking brake.
4. Back broom is attached to the coupler on the base machine. Attach the broom to the base machine. Make sure all the
cotters are locked.
5. Attach the propeller shaft the base machines power take-off (540 r/min). Make sure that the propeller shaft has its
protective covers in their proper places. Attach the hydraulic hoses.
6. Check carefully the attachment’s, the base machine’s and the fitting’s trajectory for collision. Make sure that the
needed space for hydraulic hoses and -attachments is adequate.
7. During first hours of operating the attachment, bolts, nuts and connectors might loosen up. Retighten them after the
first day of operating the attachment.

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7. OPERATING THE BACK BROOM
Check following before using the back broom:
-Broom is installed properly to the base machine
-All locking cotters are in place
-Hydraulic hoses are attached properly
-Hoses are intact
-There are no oil leaks in attachment
-All functions are in order
-Learn the functions of the back broom in an enclosed area before actual usage.
7.1. Using the back broom
1. Make sure that the attachment and the base machine are compatible in terms of mechanical solutions,
hydraulics and electricity.
2. The back broom is attached to the coupler on the base machine. Reverse the base machine near the broom.
Attach the support beams to the broom. Attach the back broom to the base machine, and make sure the
locking cotters are secured.
3. Turn off the base machine and make sure the parking brake is applied.
4. Make sure there is no pressure in the base machine hydraulic system. When connecting, always make sure the
hydraulic connectors are clean and the hoses are intact.
5. Lift back brooms front support legs. Lock them in upward position with locking cotters.
6. Check carefully the attachment’s, the base machine’s and the fitting’s trajectory for collision. Make sure that the
needed space for hydraulic hoses and -attachments is adequate.
7. Keep the back broom in suitable distance from ground (picture 3). Brush ring should bend approx. 20mm. Do
not press the broom too hard with a base machine. Brush rings wear down faster and the attachment could
be damaged!
8. The maximum rotational speed of the broom roller is 300 r/min. Gear ratio for the broom roller us 1:1,4
(retardant). Adjust the power out-take (540 r/min) and the engine’s rotational speed so that the max. rotational
speed of the broom roller is not exceeded.
9. Adjust the driving speed and the rotational speed of the broom appropriate for the amount of sand / trash.
10. Back brooms horizontal propeller shafts are equipped with overload switch. Their max. torque is 900 Nm. It is
forbidden to replace to overload switch with a stronger torque switch.
11. Stay alert for any abnormal behaviour and oil leaks also during driving.

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Picture 3. Suitable height for the brush ring
7.2. Overload switch
Load on the back broom must be reduced when the overload switch opens. Slow down the driving speed or stop
completely until the overload switch operates normally. Overload switch is a safety mechanism which can be damaged
when used incorrectly. Warranty does not cover propeller shaft equipped with overload switch. (Picture 4)
Picture 4. Overload switch