Stark U-plow UA 4200/2400 Betriebsanleitung

Original Instructions

User and Maintenance Manual

U-Plows (for machines over 10 t)

Page 2/ 30

Introduction

Congratulations for choosing STARK U-plow!

We at the STARK want your plow to serve you the best possible way, efficiently and for a long time. Therefore, please

read this manual before taking your new plow in use.

STARK products are designed and manufactured in Finland and each attachment is equipped to meet the customer’s

needs.

Make sure that everyone using and servicing the plow reads this manual beforehand! Always ensure safety while using

and servicing the plow. Please keep this manual and make sure to pass it on to a possible new owner.

Development of STARK products is based on quality, durability and economical use. Products have been designed to be

efficient, safe and durable in professional use. Feedback and customer experience are important to us for our future

development. Also, if you have any questions regarding operation or maintenance of the plow please contact us by

email: [email protected]

New innovations and all our products can be found on our website: www.stark.fi

Manufacturer reserves the right to structural and technical changes without notice. Information in the manual may

therefore have changed after printing.

Read before use

Familiarise yourself with the attachment before taking it in use.

The plow should be operated only by proficient users.

People working with this attachment should be thoroughly introduced to operation

and maintenance of it. People not acquainted with the plow may cause danger to

themselves, environment or the attachment.

When connecting the attachment, please pay attention:

-that the locking pins and cotter pins are fine

-there is no pressure in the hydraulics system

-that the hydraulic hoses are intact

-when connecting the hydraulics avoid skin contact with hydraulic fluid

-do not pull from the hose, only from the coupling

While operating, please pay attention:

-safe and appropriate speed

-other traffic, people and animals

-danger zones and visual obstacles

-device should not be used when someone is in the danger zone

-be careful around children

-do not go under the attachment

 
Page 3/ 30 
 
Contents 
Introduction .........................................................................................................................................1 
Read before use ...................................................................................................................................2 
DECLARATION OF CONFORMITY......................................................................................................4 
INTENDED USE .................................................................................................................................5 
SAFETY INSTRUCTIONS.....................................................................................................................5 
IDENTIFICATION AND PARTS............................................................................................................6 
1. Identification plate ............................................................................................................................ 6 
2. Maintenance and parts service ......................................................................................................... 6 
MAIN PARTS OF THE PLOW..............................................................................................................7 
ATTACHING THE PLOW ....................................................................................................................8 
1. Attaching the plow to the base machine .......................................................................................... 8 
OPERATING THE PLOW ....................................................................................................................9 
1. Operating instructions....................................................................................................................... 9 
2. Permitted driving directions for the plow in different positions .................................................... 10 
3. Removing packed snow................................................................................................................... 13 
4. Adjusting RELAX -blade system (UAR-models)................................................................................ 14 
5. Adjusting ACS (Anti Collision System) -springs (UA-models)........................................................... 16 
6. Adjusting flotation........................................................................................................................... 18 
7. Adjusting support legs..................................................................................................................... 19 
8. Adjusting blades .............................................................................................................................. 19 
9. Adjusting perforated blades............................................................................................................ 20 
10. Adjusting flat blades .................................................................................................................... 21 
11. Uninstalling the plow................................................................................................................... 22 
12. Transferring the plow .................................................................................................................. 22 
13. Accessories .................................................................................................................................. 22 
MAINTENANCE OF THE PLOW .......................................................................................................23 
1. General cautions concerning use and maintenance of the plow.................................................... 23 
2. Tightening torque............................................................................................................................ 23 
3. Daily maintenance........................................................................................................................... 23 
4. Maintenance after 10 hours............................................................................................................ 23 
5. Maintenance every 50 hours or weekly.......................................................................................... 23 
6. Lubrication points............................................................................................................................ 24 
HYDRAULICS...................................................................................................................................25 
1. 2- and 3-hose hydraulics.................................................................................................................. 25 
2. 4- and 5-hose hydraulics.................................................................................................................. 26 
3. 6- and 7-hose hydraulics.................................................................................................................. 27 
4. Relief valve....................................................................................................................................... 28 
WARRANTY TERMS AND CONDITIONS ........................................................................................30 

Page 4/ 30

1. DECLARATION OF CONFORMITY

Original manufacturer Declaration of conformity:

Product name: U-plow

Models: STARK UA 4200/2400, UA 4800/2400, UA 4200/2400H, UA 4800/2400H, UA 4800/3000H, UA 5400/3000H,

UA 6000/3000H, UA 6600/3000H, UAR 4200/2400, UAR 4800/2400, UAR 4200/2400H, UAR 4800/2400H, UAR

4800/3000H, UAR 5400/3000H, UAR 6000/3000H, UAR 6600/3000H

Manufacturer:

Lametal Oy

Kaskenviertäjäntie 2, FIN-73100 LAPINLAHTI

tel. +358 17 731 565

Hereby declare that the following machinery fulfils all the relevant requirements of EC Machinery Directive 2006/42/EC,

and the following standards:

•SFS-EN ISO 12100-1,

•SFS-EN ISO 12100-2

•SFS-EN 1050

The Technical Construction File is maintained at Lametal factory.

The authorized representative located within the Community is:

Lassi Mehtonen

Managing Director

Kaskenviertäjäntie 2

73100 Lapinlahti, FINLAND

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2. INTENDED USE

STARK U-plows are designed for plowing and moving snow from yards and streets. U-plow’s wings of turn 180° and it

has wide turning angle ensuring its usability in different kinds of areas.

Using to plow or move heavier material than snow is prohibited and will terminate warranty.

3. SAFETY INSTRUCTIONS

Familiarise yourself with the attachment before taking it in use. The plow should be operated only by proficient users.

Before connecting hydraulics to the plow, please check:

-there is no one between the attachment and base machine

-the base machine is turned off and the parking brake is on

When connecting the attachment to base machine, please pay attention:

-that the locking pins and cotter pins are fine

-there is no pressure in the hydraulics system

-that the hydraulic plumbing is intact

-when connecting the hydraulics avoid skin contact with hydraulic fluid

-do not pull from the hose, only from the coupling

While operating, please pay attention:

-safe and appropriate speed

-other traffic, people and animals

-danger zones and visual obstacles

-device should not be used when someone is in the danger zone

-be careful around children

-use flashing light while plowing

-do not go under the plow

While servicing the plow, the base machine’s hydraulics must be switched off, the base machine turned off and the

parking brake put on. The plow must be lowered on supports if going under the plow is required. Never go under the

plow if it is not supported.

Daily maintenance:

-check the overall condition of structures, make repairs if needed

-check the condition of hydraulic hoses and couplings, change if damaged

-check the condition of wear blades, adjust or change if needed. See” Adjusting blades”

Maintenance every 50 hours:

-lubricate the lubrication points (locations are given in product specific section)

-check the tightness of the bolts and nuts

Check the tightness of bolts and nuts after first time in use!

If the plow is left unused for a long time, it needs to be cleaned well and lubricated before storage.

BEWARE pressurised hydraulic hoses and components!

Page 6/ 30

4. IDENTIFICATION AND PARTS

4.1. Identification plate

The identification plate can be found on the top right at the back of the U-plow. On the plate can be found the

manufacturers contact info, type and model of the product, manufacturing year, serial number and weight.

The serial number’s first four digits contain the manufacturing month and year (month before year: MMYY). The last five

digits are the actual serial number, which is registered at the manufacturer (example below: 13971). Below a picture of

an identification plate:

Picture 1 Identification plate.

Please write below the product type and serial number of your U-plow:

Product _________________________________________Serial number_____________________________________

4.2. Maintenance and parts service

Only original parts should be used when making repairs. By using original parts, you can ensure proper operation and

warranty coverage. When inquiring and ordering parts please give the product type and serial number from the

identification plate to facilitate service.

STARK maintenance and parts service as well as your dealer can answer your questions on maintenance and parts.

Please contact your dealer or

STARK maintenance service:

tel. +358 (0)17 731 565, email [email protected]

STARK parts service:

tel. +358 (0)44 758 6221, email parts@stark.fi

Page 7/ 30

5. MAIN PARTS OF THE PLOW

Picture 2 Main parts of the plow

1) Middle wing

2) Left wing

3) Right wing

4) Turning frame

5) Blade frame

6) Turning cylinder

7) Inner turning cylinder of the wing

8) Outer turning cylinder of the wing

9) Blade frame spring / Blade frame RELAX-spring (UAR-models)

10) Fitting/flotation frame

11) Support leg

12) Support plate

13) Valve fitting

14) Side wear blade

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6. ATTACHING THE PLOW

When attaching the plow 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 plow to a new base machine.

6.1. Attaching the plow to the base machine

The plow is attached to the base machine by welded or bolted STARK FIT quick hitches. The machine is connected to a

hydraulic system. Hydraulic circuit diagrams can be found in a later section in this manual. Ask your retailer for available

STARK FIT quick hitches.

Before using the plow, MAKE SURE all locking cotters and pins are secured and intact.

When coupling the plow 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. Apply parking brake. The plow is attached to the coupler on the base machine (e.g. a loader). Attach the plow to the

base machine, and make sure the locking cotters and pins 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. Check carefully the attachment’s, the base machine’s and the fitting’s trajectory for collision. Do a test run using the

base machine and the loader in extreme position to check that the plow won’t collide with base machine. Make sure that

the hydraulic hoses and attachments have enough space. If needed change the location of hoses in the base machine.

6. During first hours of operating the attachment, bolts, nuts and connectors might loosen up. Retighten them after the

first day of operating the attachment.

Page 9/ 30

7. OPERATING THE PLOW

Before using the plow make sure:

-the plow is installed correctly

-all locking pins are in place

-hydraulic hoses are connected properly

-hoses are intact

-there are no oil leaks

-all functions are working properly

-learn how to operate the plow in a closed area

7.1. Operating instructions

1. Make sure that the attachment and the base machine are compatible in terms of mechanical solutions,

hydraulics and electricity

2. The plow is attached to the coupler on the base machine (e.g. a loader). Attach the plow to the base machine,

and make sure the locking cotters and pins 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. Check the attachment’s, the base machine’s and the fitting’s trajectory for collision. Make sure that the hydraulic

hoses and attachments have enough space. If needed change the places of the hoses in the base machine.

6. The optimal position for plowing, flotation in middle position and plow perpendicular to the ground (picture 3).

7. Comply with the applicable laws and regulations when operating the plow.

8. Keep in mind, that rocks and other dangerous objects can be catapulted from the plow when operating. Keep

an appropriate operating speed.

9. In a fast or rough operating loaders support shaft must be used. Stay alert for any abnormal behavior and oil

leaks also during driving.

Picture 3 Optimal position for plowing, flotation in middle position and plow perpendicular to the ground

90°

Flotation in

middle position

keskiasennossa

Page 10 / 30

7.2. Permitted driving directions for the plow in different positions

Pay attention to the functioning of the relief valve when turning the wings. If plow is driven with the wings in extreme

position, the cylinder piston is at the end of the chamber and the relief valve cannot function. When operating the plow,

leave approx. 20mm of space inside the cylinder, so the relief valve will work as intended (picture 4).

Picture 4 Cylinder piston is at the bottom in extreme positions

Plow with the wings open (picture 5) and close them a little when snow accumulates (picture 6). Just before reaching the

embankment turn the wings fully upfront (picture 7) to pack the snow and ”lift” the snow on top of the embankment with

the front loader.

NOTE! The plow may be raised to the top position, before reversing tilt the plow towards the embankment (downwards)

to keep the plow in control when lowering it within flotation.

NOTE! RELAX- and ACS -systems do not work in sidewings when they are fully upfront or straight back (picture 8).

Picture 5 Wings open

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