Sami 150-50 User manual

Operator’s manual
for scraper blade
150-50, 180-50, 210, 230-50, 250-63, 250-70, 275-70, 310-70

TABLE OF CONTENTS
1. Table of contents 2
2. Introduction 2
3. Contact Data 3
4. Intended purpose and working principle 3
5. Safety instructions 3
6. Technical specification 4
7. Attachment of scraper blade and connection of hydraulic couplings 6
8. Operation 6
9. Maintenance 7
10. Hydraulic system 7
11. Warranty terms 9
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INTRODUCTION
Thank you for purchasing this attachment. We in AS SAMI hope that you will be satisfied
with our product. This product is a result of AS SAMI’s long experience in the design and
manufacturing of various attachments.
We ask that you read and understand the contents of this manual completely before
operating the attachment. This will improve operating and maintenance efficiency, help
avoid breakdowns and damage and extend your machine’s service life.
Do not hesitate to contact us for advice regarding service, parts or any problems relating to
the operation of your attachment.

CONTACT DATA
For quick and accurate help in ordering spare parts and asking for additional information it is
in need to tell data from machines label (serial number, model) to the seller.
Please write down the data from the label, so you can use the data in need.
Model: 150-50, 180-50, 210, 230-50, 250-63, 250-70 or 310-70
Serial no: ……………………………………….……........
Seller: …………………………………………….........
Seller address: ……………………………………………………
Phone: …………………………………………………….
INTENDED PURPOSE AND WORKING PRINCIPLE
SAMI scraper blade is designed for attaching to the rear three-point linkage of a tractor. The
scraper blade is mainly designed for snow removal as well as for levelling of soil, cleanup
work, etc. Depending on the model, the scraper blade comes with optional snow wings or
side extensions to facilitate snow removal.
Depending on the model, the angle of the boom and blade in relation to the tractor can be
adjusted either hydraulically or manually. By adjusting the angle you can control how the
blade ploughs the material. When you turn the blade, it leaves more material to the side
which is tilted towards the tractor.
Furthermore, the position of the scraper blade can be changed by adjusting the lifting arms
and the top link. The attachment is operation by a lever of the single-action lifting device.
SAFETY INSTRUCTIONS
 Before using the attachment read the operator’s manual of the tractor and of the
attachment.
 Make sure that the attachment locking pins lock properly when coupling the
attachment.
 Do not start operation if the attachment is not locked to the tractor.
 Start operation slowly and carefully.

 Always keep the attachment as low as possible to ensure maximum stability when
operating.
 Before rotating the scraper blade make sure that there are no bystanders. Danger
of crushing!
 Turn the blade of the scraper away from the tractor and place the boom in central
position during driving.
 When driving take special care on turns to avoid the bale scraper blade hitting any
obstacles.
 Never go under the attachment, because even with the engine not working the
blade will be lowered down if the control lever of the lifting device is operated.
 Before using the blade read the tractor’s safety instructions as well.
 Make sure that the hydraulic hoses are coupled correctly and do not leak.
TECHNICAL SPECIFICATION
Mechanical scraper blades
Model
Blade
width
(cm)
Blade
height
(cm)
Max tractor
power (Hp)
Slewing Weight
(kg)
Boom
Blade
cylinder Blade
150-50 150 48 Cat 1… 20-45 hp No No M 127
180-50 180 48 Cat 1… 20-45 hp No No M 138
210 201 48 Cat 1… 30-65 hp No No M 134
230-50 230 56 Cat 2… 40-80 hp M L M 188
M – manual movement
H – hydraulic movement
L – optional equipment

Hydraulic scraper blades
Model
Blade
width
(cm)
Blade
height
(cm)
Max tractor power
(Hp)
Slewing
Boom
Blade
cylinder Blade
Weight
(kg)
250-63 245 63 Cat 2… 60-100 hp M L M 367
250-70 245 70 Cat 2… 100-160 hp M L H 636
275-70 275 70 Cat 2… 100-160 hp M L H 660
310-70 305 70 Cat 2… 120-180 hp M L H 692
M – manual movement
H – hydraulic movement
L – optional equipment
The scraper can be equipped with various optional extras listed in the table below.
Model Snow
wing
End
plate
Support
leg Wheels
Double-
sided
blade
Rubber
blade
Hardox
Double-
sided
ice
blade
Hardox
Double-
sided
blade
Valve
Accu-
mulation
tank
150-50
+
-
S
-
+
+
-
-
180-50
+
-
S
-
+
+
-
-
210
S
-
S
-
-
-
-
-
-
-
230-50 + + S + + + + -
250-63 + + S + + + + -
250-70 + + S + S + + + + +
275-70 + + S + S + + + + +
310-70 + + S + S + + + + +
“+”: available as an option
“-“: not available for this scraper blade
“Standard eq.” – part of standard equipment of the scraper blade

ATTACHMENT OF SCRAPER BLADE AND CONNECTION OF HYDRAULIC
COUPLINGS
Attach the scraper blade to the three-point linkage. Using the top link, adjust the scraper
boom as parallel to the ground as possible.
Connect the hydraulic hoses with the tractor’s hydraulic system (hydraulic models). The
scraper blade has two, four or 6 hydraulic quick couplings, which should be attached to the
corresponding couplings of the tractor. The coupling of the hoses defines the turning
direction when the auxiliary hydraulics control lever is moved. If you find the turning
direction of the blade or the boom to be illogical when you move the auxiliary hydraulics
control lever just change the coupling of the corresponding hoses.
Check the functioning of the hydraulics before starting operation. If the hydraulics is
inoperative, check the compatibility/connection of the quick couplings and the functioning
of the tractor’s hydraulic system.
Make sure that the hydraulic hoses do not get overstretched in any position of the
attachment and are not in a position where they can become entangled during the
operation of the machine and the attachment.
Always observe the safety instructions in paragraph 3 when coupling the attachment.
OPERATION
Scraper blades with hydraulic movement enable adjustment of the slew angle of the blade
and the lateral movement of the boom, depending on the model. Furthermore, the position
of the scraper blade can be changed by adjusting the lifting arms and the top link. The
attachment is operation by a lever of the single-action lifting device.
The positions of hydraulic scrapers can be adjusted from the tractor’s cab.
The blade can be slewed as follows:
Turn the blade using the cylinder (if the output of the tractor's hydraulic pump is low,
increase revolutions) until the cylinder is at its shortest.
Move the hydraulic valve control lever in middle position - now the blade crosses the so-
called “dead point”.
Push the control lever to the opposite direction to continue the movement (turning) of the
blade.

WARNING!
When driving backward with the tractor - the scraper blade being in pushing position
(reversed) - the blade does not cross obstacles the way it does when driving forward.
Support wheels (optional equipment) can be used for levelling work.
MAINTENANCE
 During the period of active use of the scraper blade it must be visually inspected on
daily basis. If any plays or deformations or hydraulic oil leaks are detected, the
defects must be eliminated immediately.
 If the scraper blade has grease points, these must be greased once a week or as
necessary during the period of active use. See figure 1.
 Lubricate the piston rods of hydraulic cylinders with a grease or anti-corrosion agent
before putting the scraper out of service for longer periods.
Figure 1. Greasing points of 250-70, 275-70 and 310-70 scraper blade
HYDRAULIC SYSTEM
When connecting the hydraulic hoses, the tractor’s or the attachment’s hydraulic system
must not be pressurized. Once the couplings have been connected, the hydraulic system
Grease points.
Grease points on and
below the disc.

develops high pressure. If pressurised hydraulic oil bursts out, it penetrates the skin and
might cause severe injury. The risk of injury is present also when the system is inspected for
leaks. If an injury occurs, seek medical assistance immediately (risk of inflammation)!
Be careful with all hydraulic system components. Wear appropriate protective equipment
and devices.
Inspect the hydraulic hoses at regular intervals and replace if worn or damaged. All
replacement hoses must meet the DIN standards or equivalent.
INSTRUCTIONS FOR HOSE REPLACEMENT
 always ensure that the hose is not pressurized before detaching the coupling
 when replacing hoses check that the hoses are not twisted or don’t get twisted
during the operation of the attachment
 do not over-tighten the coupling nut and check the position of couplings
 use hose ties of the right size
 tighten the threaded (= male) couplings before the coupling nuts
 do not use locking or packing agents
 use wrenches of the right size
REMOVE AN OLD HOSE AND COUPLING, IF:
 the hose has detached from the coupling (discard the coupling as well)
 the hose is torn or leaks (also when it becomes moist)
 the surface layer has worn out and the webbing is visible
 the hose has flattened or permanently deformed
 the hose shows signs of burns or surface cracks
 the hose manufacturer does not warrant a service life of more than five years
 the coupling is corroded or permanently deformed
 the coupling leaks
 the compressible coupling can be used only once
PROTECTION FROM OILS AND GREASES
 Oils and greases may contain additives which could sometimes be harmful if they
come in contact with the skin repeatedly. Respect the relevant safety instructions
when handling these substances.
 Always wear appropriate protective clothing, hand protection creams or oil-proof
gloves when handling oils or greases.
 The spreading of oil mist into the working area or the spillage of oil onto walking
paths causes a risk of slipping.
 Avoid skin contact with oils and greases.
 Never use oil or grease to clean hands.

 Replace oily clothes with clean ones as soon as possible. Do not put oily cleaning pads
or the like into pockets. Waste oil must be collected and disposed of according to the
relevant regulations.
WARRANTY TERMS
Warranty for SAMI products is valid 12 months from the date of purchase.
 Material and manufacturing defects that occur during the warranty period are
covered by the warranty.
 When a defect occurs, please contact authorized distributor whom you bought the
product.
 Please send to distributor serial number and/or year of manufacture of the product
(see the manufacturer’s data plate) together with photos, videos (of product’s label,
of problematic place(s), of product in general, of work environment in general) and
detailed description of the defect.
 Distributor communicates the producer and informs the client about made decision.
 In need distributor may ask from the client to send additional information or
defected part.
 All warranty cases accepted by AS SAMI will be compensated by producer.
 The manufacturer either repairs or replaces or compensates the defective parts.
 Sub-contracted part’s warranty is provided by their manufacturer.
The warranty excludes:
 Consumables (e.g. blades, etc)
 Downtime or any other consequential loss or damage
 Transport costs (travel and freight costs)
 Overtime pay or mission allowances
 Any damage caused by operation in a negligent manner or exceeding the approved
specifications detailed in this manual is excluded.
The warranty excludes damage resulting from:
 Negligent or improper use of the product.
 Failure to observe the operating and maintenance requirements set by the
manufacturer.
 Normal wear and tear.

AS SAMI
Tule 20, 76505 Saue
Harjumaa, Estonia
Tel: [phone]
E-mail: [email protected]
www.sami.ee
 Abnormal operating conditions.
 Overloading or use for other non-intended purposes.
 Lack of maintenance and checks.
 Repair works which are below standard.
 Failure due to use of incorrect oil or lubricants, contamination of the oil, or which has
served its normal life.
 Hoses which have suffered external damage.
 Using other than SAMI original spare parts and equipment.
 Long storage time (e.g. paint defects or corrosion).
 The manufacturer does not accept any responsibility for interruption of work or any
other consequential loss resulting from any failure of the product.
All warranty terms apply only to a new product purchased from a distributor authorized by
AS SAMI. The warranty does not apply to a resold product.
THIS MANUAL IS TRANSLATION OF ORIGINAL