MEDIUM DUTY SNOW PLOWS:

Transcription

1 SaMASZ Sp. z o.o. Poland, Białystok, ul.trawiasta 15 Established 1984 OPERATING MANUAL tel. (+48) (85) fax (+48) (85) samasz@samasz.pl MEDIUM DUTY SNOW PLOWS: PSV 161 PSV 181 PSV 201 PSV 231 PSV 251 PSV 271 PSV 301 PSV 231 Up PSV 271 Up PSV 301 Up PSV 231 Up (H) PSV 251 Up (H) PSV 271 Up (H) PSV 301 Up (H) The original instruction IN202EN VERSION 5

2 This operating manual is an indispensable part of every snow plow and aims to familiarize the user with the rules of proper operation and utilization of the device as well as the dangers inherent in its use. Before starting up the machine for the first time carefully read this operating manual and all safety advice. The PSV snow plow is a medium duty plow intended exclusively for plowing roads, car parks, lots which are slightly uneven or similar jobs. Fulfilling the requirements regarding utilization, operation and repair according to the recommendations of the manufacturer and exclusive adherence to them are the conditions for its use in accordance with its intention. Other than the rules of the machine's utilization, its proper use consists of maintenance and keeping it in good condition as well as the use exclusively of original spare parts. The PSV snow plow should be operated, serviced and repaired only by personnel familiar with its technical characteristics and with rules of safe conduct. Regulations regarding accident prevention and all basic regulations regarding safety and work hygiene, as well as all traffic regulations should always be observed. The manufacturer assumes no responsibility for damages resulting from self-made repairs or modifications of the snow plow carried out without manufacturer's authorization. In the event of any doubts connected with the operation or utilization of the plow please contact the manufacturer's service department. When the snow plow is sold it is mandatory to pass on the operating manual to the new owner and keep a signed written confirmation of this fact. ATTENTION Statements in this operating manual with this sign as well as warning signs on the device warn the user of possible dangers. ATTENTION Keep this manual for future use. We congratulate you on making the correct choice in your snow plow purchase and wish you satisfaction from its use. Written by: mgr inż. Ireneusz Iwanowicz Edited by: inż. Marta Zalesko

3 Table of contents 1. IDENTIFICATION SAFETY CONDITIONS Safety rules Warning signs Warnings and prohibitions INTENDED USE AND CONSTRUCTION PSV plows EQUIPMENT AND SPARE PARTS Standard equipment Optional equipment Spare parts PLOW OPERATION Connecting the plow to the tractor Plow control Transport and parking positions of the plow Preparing the plow for operation Operation OPERATIONAL MAINTENANCE MAINTENANCE AND STORAGE TRANSPORT AND DELIVERY TECHNICAL CHARACTERISTICS DISASSEMBLY AND DISPOSAL Disassembly Dismantling and disposal Environment WARRANTY Warranty card Warranty conditions Record of warranty repairs PARTS LIST

4 1. IDENTIFICATION Every snow plow can be clearly identified using the identification plate which is permanently attached to the suspension body, as is shown below (Fig. 1 and Fig. 2). A G E B C D J F I H Fig. 1. Identification plate and its location (PSV 301 plow) A G E B C D J F I H Fig. 2. Identification plate and its location (PSV 231 Up H plow) The identification plate includes: A. full name of the manufacturer, B. serial number, C. device model, D. date of manufactuer, E. device weight, F. quality control mark, G. the CE symbol signifies that the product conforms to the 2006/42/WE Directive and harmonized standards. H. country of manufacture, I. barcode, J. version number. The identification plate is a document and it is forbidden to change it or to allow it to become illegible. The identification plate contains essential information necessary when contacting the manufacturer in the event of any questions or doubts. When ordering spare parts for a device, please include data from the identification plate of that device: name, model, serial number and date of manufacture. - 2-

5 2. SAFETY CONDITIONS Only personnel familiar with this operating manual may operate the snow plow. Every operator of the plow should be fully aware of existing dangers and should know how to avoid those dangers. 2.1 Safety rules Before operation the operator must read this operating manual. Unfamiliarity with the operating manual can lead to damaging of the plow. Using the plow for purposes other than the intended use is forbidden. The PVS plow with the frame has bolts on the mount which act as a mechanical overload safety system. If those are broken all resulting damages are not covered under warranty not applied in PSV Up (H). Introducing of changes to the construction without manufacturer's approval is forbidden. Observe the regulations of the traffic code while operating the plow. Operating speeds of the tractor-plow unit should be appropriate to working conditions, such as: level of unevenness, rocks, curbs and other immovable obstacles. Low operating speeds are recommended using low gears of the tractor. Use of higher speeds can cause injury to the driver and damage to the plow and the front TPH (three-point hitch) of the tractor. Unauthorized personnel can not remain in the vicinity of the plow. Before starting work conduct a check of the device and especially the condition of the main connections of the plow and the connection of the plow to the tractor. Prior to work commencement check whether support leg is lifted/dismounted. In the event of the necessity of working under a plow raised on the TPH of the tractor the plow must be secured so that it does not fall. The condition of bolt connections and other connecting elements should be periodically checked. Operation with damaged connections is forbidden. Carrying people or loads on the plow during transport or operation is forbidden. Use original pins and safeguards to connect the plow to the tractor. When standing the plow should be in the parking position (Fig. 17a, Fig. 20a). Plow PSV Up (H) has gas batteries. If work is complete then reduce pressure in the assembly for idle period. Pressure gauge should indicate "0". Damaged hydraulic hoses and other elements of the hydraulic system should be replaced. Use only original spare parts which are purchased at our company store or at a dealership. During operation, maintenance or adjustment always use protective gloves. Do not leave the tractor and plow on inclines. If such need occurs turn off the engine, engage the parking brake and lower the plow. The plow should be stored in a covered area in the retracted position with the actuators retracted to protect the piston rods. Ensuring the safety of the work area is the responsibility of the person operating the machine. - 3-

6 2.2 Warning signs Always observe the instructions on warning signs on the plow which warn of dangers. All warning labels should be clean and legible. In the event of loss or damage of labels they should be replaced. Labels can be purchased from the manufacturer. Any replaced parts should posses all warning signs required by the manufacturer. Tab. 1. Warning labels located on the plow N-3 Read the operating manual before operation. N-4 Turn off power before starting servicing or repairs. N-11 N-40 Transport hook for lifting of the plow. N-52 Use protective gloves. N-141 (for: PSV Up oraz PSV Up H) N-176 Mounting the plow on a truck (for: PSV Up H) - 4-

7 N-142 Lightening system (for: PSV Up) N-95 Do not grease oil retaining bush N-152 Proper adjustment of safety bumpers for operation 2.3 Warnings and prohibitions Even though the manufacturer of the plow SaMASZ Sp. z o. o. Bialystok, in order to eliminate danger, assumes responsibility for the design and construction of its plows, some elements of risk (so called residual risk) are unavoidable during plow use. Existing residual risk mainly result from inappropriate behavior of the snow plow operator and not adhering to the rules of the operating manual. While assessing residual risk the snow plow is treated as a machine which to the moment of its manufacture was designed and constructed according to the level of technology used at the time of its manufacture. The danger of injury Occurs during replacement of any working elements with sharp edges. During all repairs or maintenance always wear protective gloves. - 5-

8 PROHIBITIONS! Remember the following prohibitions during snow plow operation. Operation of the plow under the influence of alcohol, drugs or medications which reduce motor skills is forbidden. Operation of the plow by unauthorized or untrained personnel is forbidden. Using the plow for activities other than those described in the operating manual is forbidden. 3. INTENDED USE AND CONSTRUCTION The PSV and PSV Up (H) plows are a medium duty plow intended for use on roads, car parks, lots which are slightly uneven or similar jobs. These can cooperate with both tractors and other self-propelled vehicles (e.g. telescopic loader, excavator/loader etc.). PSV Up (H) Snow Plows cooperate with any popular trucks and tractor equipped with front linkage in conformity with PN-EN (DIN76060) PSV plows Thoroughly tested construction and the right choice of materials ensure a high reliability and durability of our products. Thoroughly tested construction and the right choice of materials ensure a high reliability and durability of our products. The PSV snow plow basically consists of a suspension system (B) with a replaceable mount (A) and adjustable right (C) and left (D) operating systems adjusted through the use of hydraulic actuators (G). Dual directional actuators are controlled using the tractor's hydraulic system with a controllable directional valve. More detailed construction of the plow has been presented on Fig. 3. As an option support wheels or skids can be purchased, thanks to which we can reduce the pressure of the plow on the ground and extend the life of the rubber insert or the metal blade insert. D H B C E A F I G J Fig. 3. Construction of the PVS plow and a hydraulic schematic. P1, P2 drive, A, B, - actuator 1, C, D actuator 2 K - 6-

9 Construction of the PSV plow A. Mount* G. Rotational actuator B. Suspension system H. directional valve C. Right moldboard I. Support leg D. Left modlboard J. Rubber blade insert E. Plowshare K. Side bumper F. Hydraulic connection terminals - Transport points * - According to the requirements of the client types of mounts available are: frame PSV cat. I, frame PSV cat. II, frame PSV cat. I/II with unattached lugs, frame PSV EURO, frame PSV SMS, or plate PSV for individual development or frames adjusted to different types of excavator/loaders full list of which is available at the Manufacturer PSV Up (H) plows PSV Up means that the plow has no own electric pomp has to be part of a vehicle (needs to have 2 pairs of hydraulic connectors) while PSV Up H Plow has its own hydraulics, and in result cooperation with any truck is possible. Thoroughly tested construction and the right choice of materials ensure a high reliability and durability of our products. More detailed construction of the plow has been presented on Fig. 4. PSV Up Snow Plow generally comprises linkage with replaceable hitch (G) designed for cooperation with vehicles featuring front linkage and adjustable right (C) and left shield (D) controlled by hydraulic cylinders (B). Dual directional actuators are controlled using the tractor's hydraulic system with a controllable directional valve (H). As an option support wheels or skids can be purchased, thanks to which we can reduce the pressure of the plow on the ground and extend the life of the rubber insert or the metal blade insert. J D C K B G F H A E Fig. 4. Construction of the PVS Up H plow - 7-

10 Construction of the PSV Up (H) plow A. Spring mechanism of the plowshare G. Suspension system. B. Rotational actuator H. directional valve. C. Right moldboard. I. Support leg. D. Left modlboard. J. Side bumper. E. Plowshare. K. Electric pump* F. Rubber blade insert. Transport points * PSV Up plows have no electric pump 4. EQUIPMENT AND SPARE PARTS 4.1. Standard equipment PSV plows warranty card, operating manual and spare parts catalogue, rubber or metal blade inserts, hydraulic plowshare steering, protection inclined shield, hydraulic overloading protection, support leg, marker lights LED 12-24V, electric installation 12V, posibility of mounting flags, safety bumpers, hitch on front 3-ponit linkage cat. II Euro/ SMS/ Frame, spray paint (150 ml). PSV Up (H) plows warranty card, operating manual and spare parts catalogue, rubber or metal blade inserts, hydraulic plowshare steering, protection inclined shield, own independent hydraulic unit (PSV Up H), hydraulic overloading protection, posibility of mounting flags, marker lights, road lights, electric installation (24V PSV Up H, 12V PSV Up), safety bumpers, mounting on front plate (PN-EN plate DIN 76060), spray paint (150 ml) Optional equipment PSV plows rubber or metal blade inserts, mount with a different connection, set of support wheels, set of support skids, set of support Küpera skids, marker flag, multifunctional control, Multi Plus control. PSV Up (H) plows rubber or metal blade inserts, electric installation 12V, set of support wheels, set of support skids, set of support Küpera skids, marker flag. - 8-

11 4.3. Spare parts Spare part should be ordered according to the spare parts catalogue, using full name of the part and the part number from the catalogue. Use only original equipment and spare parts from the SaMASZ Company. Parts from an unknown source or home made are less durable and have a negative influence on the operation of the plow and work safety. The SaMASZ Company is not responsible for harm or damages resulting from using non-original parts or equipment. 5. PLOW OPERATION 5.1. Connecting the plow to the tractor In order to facilitate transport the plows have turned away safety bumpers, which need to be reversed before operation, as shown in Fig. 5. Fig. 5. Proper mounting of safety bumpers Conditions for connecting the PSV plow to the tractor The PSV plows have been designed as front mounted plows with different mount options depending on the individual needs of the customer. There exists a choice of following mounts: TUZ II, EURO, SMS and a frame for individual development (Tab. 2). The tractor must have a 12 V power outlet (cigarette lighter outlet), The tractor must have at least one pair of hydraulic connections Tab. 2. Optional mounts of the PSV plows Frame PSV cat. II (STANDARD) Frame PSV cat. I - 9-

12 Frame PSV cat. I/II with unattached lugs Frame PSV EURO Frame PSV SMS Plate PSV for development In order to mount the plow on the tractor: approach the plow so that the lower lifting arms of the three point hitch are inserted into the mountings of the plow's suspension, secure the mounting using pins and cotter pins, connect the upper part of the suspension system using a regulated tie and secure them with a pin and cotter pin (Fig. 6), next connect the hydraulic connections and the power plug along with the control switch, the rotation axis of the moldboards should be perpendicular to the ground, after lifting the plow the support foot should be lifted and secured with a pin, if the plow has been equipped with support wheels or skids they should be adjusted to the correct height. D F G A B 90 C E Fig. 6. Connecting the PSV plow on a cat. II three point hitch. A Pins with cotter pins, B Hydraulic connections, C Support foot, D Electric outlet, E Lower TPH arms, F Upper TPH regulated tie, G - Rotation axis of the moldboards The manufacturer is not responsible for damages to the device resulting from improper mounting of the plow on the TPH of the tractor. During operation periodically check weather the plow is still properly mounted

13 Mounting PSV Up plows on a truck/tractor In order to mount PSV Up plow on truck/tractor the following should be performed (Fig. 7): install control panel Before connecting the plug in control panel, make sure that the main switch is turned off!, plug in power plug to lighter's connector, connect hydraulic hoses to vehicle, it is recommended to retract both cylinders responsible for shields' shifting (item. V) in order to provide the plow s better stability, lift the hitch up to required mounting height, set the vehicle in position which enables plow to be mounted on, so that hitch holders are above linkage connectors, lower plow's hitch onto vehicle's/tractor s front linkage (with use of the hydraulics), upon mounting of the hitch on DIN linkage, protect the connection with M27 bolts. Place hitch holders in front linkage connectors Fig. 7. The PSV Up plow mounted on the truck PSV Up Snow Plow features unloading assembly. In order to use it perform the following: upon mounting the machine lift the plow by means of vehicle s hydraulics and close the valve on connector hose located nearby EURO plug, lower the plow to 5 10 cm above the ground so it does not touch the surface, read out pressure value from the gauge, next while lowering the plow by means of the vehicle s hydraulics set pressure value for 5 10 bar less than indicated on the gauge Mounting PSV Up H plow on a truck Protect hitch with bolts by screwing to front linkage PSV Up H Snow Plow can be mounted directly on vehicle s front linkage. In order to mount the plow on the vehicle perform the following: take hydraulic power supply cover off, connect main power supply 4-pin plug and steering panel, turn switch MOUNT on and while holding UP button lift the hitch up to required mounting height (switch underneath power supply cover Fig. 9), set the vehicle in position which enables plow to be mounted on, so that hitch holders are above linkage connectors (Fig. 8), - 11-

14 lower plow's hitch onto vehicle's DIN linkage while holding DOWN button (switch underneath power supply cover Fig. 9), set switch in WORK position and pay special attention as in such position the hitch falls down freely, what may cause bodily injury, upon mounting of the hitch on DIN linkage, protect the connection with two M27 bolts (Fig. 8), install control panel, put hydraulic power supply cover on. Protect hitch with bolts by screwing to front linkage Place hitch holders in front linkage connectors Fig. 8. The PSV Up H plow mounted on the truck ATTENTION: The manufacturer does not bear any responsibility for machine s damages resulting from improper mounting to vehicle. Plow s disconnection may cause its damage as a result of a collision with the vehicle. Plow s proper mounting on linkage should be inspected periodically when operating. ATTENTION: Lifting plow up with use of control panel does not work if MOUNTING switch is on, and switches should be set in WORK position. Mounting of the set with switch in MOUNTING mode on may cause the battery discharge. Fig. 9. Placement of N-176 decal mounting plow on vehicle - 12-

15 5.2. Plow control ATTENTION: Prior to mounting plow make sure that polarity of aggregated machine is the same as driver's (Fig. 10). Wrong polarity will cause damage to the driver. - + Fig. 10. Polarity of driver's plug Once hydraulics and power plug are connected, move control panel along with cable to tractor's cabin and connect the plug to lighter's connector 12V (Fig. 11). In order to lift/lower the plow, use control lever for tractor's front 3-point linkage PSV plow standard control Hydraulics control lever is used to rotate shield. Switching between right and left plow's shield is possible thanks to switch (B2) on control panel (B). In order to turn clearance lights on/off use switch (B1) on control panel (B). Switching on is signaled by flashing diodes above the switch. In order to extend life of coil on electric valve the driver automatically switches to left wing after one minute. B B1 A C* B2 Fig. 11. Controlling the PSV plow. A Cigarette lighter outlet, B Control panel (B1 marker light switch, B2 moldboard control switch right/left), C Front TPH and hydraulic system control lever (* - this is different in different types of tractors) - 13-

16 Optional control with PSV plow Multi Plus In PSV plows it is possible, on individual request, to install a two-button control panel as provided in Fig. 12 which cooperates with a 2-cartridge valve (Z). Z LED Fig. 12. Optional control panel Multi Plus Clearance lights turn on automatically after powering the controller, which is indicated by a LED on the controller. They cannot be turned off by means of the control panel. 1 Controlling right shield (indicated by button-corresponding LED); 2 Controlling left shield (indicated by button-corresponding LED); 3 Simultaneous control of both shields (clearing snow either to the right or to the left). The function can be activated by pushing an active button 1 or 2 again both LEDs are off. In order to extend life of coils on electric valves, after 40 minutes the controller automatically switches to position (1). In such case both coils are not powered PSV plow optional control - multifunctional In case of PSV plows there is possibility, on individual request, to install a 5-button control panel as provided on Fig. 13 which cooperates with a 3-cartridge valve (Z Fig. 13). Z ON/OFF Fig. 13. Optional control panel PSV - 14-

17 1 Switching clearance lights on/off; 2 Setting of left shield; 3 Setting of right shield; 4 Setting of both shields for clearing snow away to the right \ or to the left /; 5 Setting of both shields at the same time to \/ or /\ position; In order to extend life of coils on electric valves the driver automatically switches to position (4). Double pushing of buttons (2), (3) or (5) will switch to position (4) PSV Up plow control Controlling PSV Up plow is possible owing to control panel (Fig. 14). Switch (A) in position (I) enables controlling right shield (work if parking lights ar first turned on switch (B)), in position (II) controling left shield. In order to turn parking lights on set switch (B) in position (I). Turning road lights on is possible if switch (C) is in position (II), while for dipped lights in position (I). Both dipped and road lights work if parking lights ar first turned on switch (B). If control light (D) is on then fuse is off. II 0 I C B I 0 I II A D PSV Up H plow control Fig. 14. Control panel PSV Up Plow s independent hydraulic assembly consists electric pump and three control cylinders. Turning cylinders are equipped with hydraulic batteries, which protect the plow against hitting obstacles. Lifting assembly has hydraulic battery applied which enables adjusting plow s pressure onto the ground. Controlling plow is possible owing to control panel (Fig. 15). With use of a joystick the operator sets the plow in adequate position (either operating or transport)

18 Lifting to TRANSPORT position (support depending on value indicated on pressure gauge) Moving right shield forward (joystick's motion right-up) Diode showing joystick's ON Ground following without support plow exerts pressure onto the ground with its full weight; OFF Ground following with support. Once pressure is additionally pumped into the system the pressure onto the ground is reduced with " " lever Moving left shield forward (joystick's motion left-up) Road lights Moving left shield backwards (joystick's motion left-down) Dipped lights Control panel switch Lowering plow to WORK position Moving right shield backwards (joystick's motion right-down) Parking lights Fig. 15. Control panel PSV Up H ATTENTION: Upon plow s mounting, examine condition of bolt connections and safety elements. ATTENTION: Prior to operation commencement inspect and examine heavy current bolt connections torque regularly

19 Heavy current Fig. 16. Heavy current cables inspection place The plow features possibility of adjusting pressure onto the ground (unloading). In order to make use of this function: lower the plow so it does not contact the ground onto so it is 5 10 cm above the surface, read out pressure value from the gauge, next while lowering the plow with use of vehicle's hydraulics set pressure by 5 10 bar less than shown on pressure gauge Transport and parking positions of the plow Transport and parking positions of the PSV plow During PSV plow transport it should be lifted and prevented from lowering on its own (ex. locking the tractor's TPH). When standing the plow mounted on the tractor should have the plowshare resting on the ground (Fig. 17a). Plow not connected to the tractor's TPH should be resting on the support foot (C) (Fig. 6). In all positions mentioned above the plow should be in the retracted position meaning with the actuators retracted (Fig. 21d). a) b) Fig. 17. The PSV plow in a) parking position, b) transport position Transport and parking positions of the PSV Up (H) plow In the event of plows with lifting and hydraulic assembly PSV Up (H) for transport purposes, lift the plow with hydraulic cylinder (S) (Fig. 18) with use of joystick (A) up on control panel (Fig. 15). Moreover, protect the cylinder with steel line (L) as shown on Fig. 18. Steel line protects the plow against accidental fall when transported in the event of hydraulic assembly failure. When driving on public roads respect road traffic rules. In each of the provided positions the plow should be in compact position, that is with retracted cylinders

20 ATTENTION: When transported the plow should be in stable position enabling its safe transport. L S Fig. 18. Plow in transport position: S - proper setting of hydraulic cylinder Z - protecting cylinder with steel line a) b) Fig. 19. The PSV Up H plow in a) parking position, b) transport position a) b) Fig. 20. The PSV Up plow in a) parking position, b) transport position 5.4. Preparing the plow for operation After correctly mounting the plow on the tractor it should be inspected and it should be determined if the plow has worn blade inserts, bumpers or loose bolts. If necessary replace worn elements and tighten the bolts. If the plow is ready for use it should be placed in the desired position and start plowing. Fig. 21 presents basic operating positions of the plow. While working on public roads turn on the marker lights

21 a) b) c) d) e) Fig. 21a. Basic operating positions of the PSV plow, a) plowing the snow right, b) plowing the snow left c), e) moving the snow, d) plowing the snow to both sides simultaneously a) b) c) d) e) Fig. 21b. Basic operating positions of the PSV Up (H) plow, a) plowing the snow right, b) plowing the snow left c), e) moving the snow, d) plowing the snow to both sides simultaneously - 19-

22 Fig. 22. Plow positions - up - down For PSV Up (H) Plow transport and operation dsimount support legs (S) as provided on Fig. 23. Also turn clearance lights with switch (B) (Fig PSV Up), (E) (Fig. 15 PSV Up H) on control panel. S Fig. 23. The location of the support foot in the parking position (PSV UP (H)) - 20-

23 5.5. Operation During plowing the driving speed should be appropriate to existing road conditions. During plowing driving faster than 25 km/hr is forbidden. The PSV, PSV Up (H) plows are medium duty plows which are capable of withstanding snow pressure of up to 6 tons. A schematic of permissible load distribution has been presented in Tab.4 positions a), b) and c). These plows often operate on uneven terrain and are subject to meeting immovable obstacles which the operator often can not see, especially when covered by snow. For this reason the PSV plows have been equipped with a number of overload safeguards: the first is the lateral coping system, which allows for overcoming slight diagonal bumps by adjusting to them. Plow construction allows the plowshare to tilt right or left by 6 in relation to the mount (Fig. 24), 6º Fig. 24. Lateral coping of the PSV 301 Up plow the second are the side bumpers which protect the plow from side collisions with for example a curb (Fig. 3 K, Fig. 4 J ), the third optional system are the folding blades - after encountering an obstacle the fold back by 35 allowing the plow to easily overcome these obstacles. The folding mechanism of the blade with new rubber inserts allows the plow to drive over 12 cm curbs. It should be remembered however that if the rubber insert becomes worn and is shorter by, for example 5 cm this plow can only drive over a curb 5 cm lower. If the user plows in an area where high curbs are present he should change the rubber inserts more often. Tab. 3. The working of the blade This concerns 1 blade. PSV blades, all others PSV 2 blades α [º] Fu [kg] α Blade

24 the fourth system is the patented construction of the mount which protects the plow from pressure greater than 6 tons and from sudden collisions with an immovable obstacle. It works by absorbing the energy of the collision through partial or complete breaking of the 8 M10 class 8.8 bolts, and through the plastic deformation of the mount pressure plates (Fig. 25). The system is not applied in PSV Up (H). Pressure plate Securing bolts Fig. 25. Replaceable mount with overload protection Mount frame the fifth system is overloading safety device which protects PSV Up (H) plow from heavy snow pressure as well as from sudden hitting of a solid obstacle. Factory set hydraulic accumulator (Fig. 26) is for 9 MPa pressure and whenever this value is exceeded the cylinder is not able to handle it and in result is retracted backwards. The force value is dependant upon size of hydraulic cylinder used in a particular model as well as point of force application Tab. 5. The safety device causes the cylinder to surrender and in result retract the plow s segment backwards whenever admissible force values are exceeded. Bear in mind, that that with complete retraction of cylinder, the safety device!! is not going to operate!! as there is no possibility of any motion of cylinder rod. In such case operate the plow with particular attention. Hydraulic accumulator Shield cylinder Fig. 26. Overloading safety device of PSV Up Plow - 22-

25 Tab. 4. Schematic visualization of the permissible loading of the PSV plow a) Schematic of the permissible loads affecting the b) Distribution of permissible loads of the PSV-301 and PSV-271 plow PSV-301 and PSV-271 plows with GCJ-63x300 actuators - up to 6 tons Fmax=up to 6 tons Ground Fu - Pressure tilting the blade c) Schematic of the permissible loads of the d) PSV-301 and PSV-271 plows Option 1 Option2 Fmax up to 3.5 Tons Fmax up to 1.5 Tons In plows with working widths less than 2.7 m (PSV 161, PSV 181, PSV 201, PSV 231) the permissible load is F max = 4 tons. Tab. 5. Approximate force F h acting on the PSV plow at speed V and stopping distance S h with a tractor weight equal to 6 tons according to Tab. 4 pos. d) Stopping distance S h = [cm] Calculated frontal force F h = [Tons], with deceleration of the tractor at speed V. 5 km/h 10 km/h 20 km/h 10 2 t 11 t 31 t 20 1 t 6 t 16 t t 2.5 t 6 t t 1 t 2.5 t The table above is a demonstration to show the operator how suddenly the forces change depending on speed and stopping distance. 6. OPERATIONAL MAINTENANCE The link connecting the moldboards with the suspension body has self lubricating bushings and does not require additional lubrication. Every time before starting work: make certain that the plow is properly connected to the tractor check the condition of the hydraulic hoses and fittings, check the hydraulic system and marker lights, check the level of wear on the blade insert and replace if necessary, check the tightness of all bolts and nuts according to Tab. 6, when installed adjust the height of support wheels or skids, in the event of broken bolts or damaged parts - replace them

26 After 5 work hours: check the condition of blade inserts, check the condition of mount securing bolts and replace if necessary, when installed adjust the height of support wheels or skids if necessary. After finishing work: carefully clean and wash the plow, Tab. 6. Values of bolt tightness A MA [Nm] M M M M M M M M M M M M MAINTENANCE AND STORAGE In the event when the plow will be parked for a period longer than two weeks, always perform the following maintenance: carefully clean and wash the plow, if the plow requires repairs, adjustments, gasket replacement, or hose replacement this should be completed, remove any rust spots and touch up any damaged paint. protect metal surfaces with a light coating of a thick lubricant such as ŁT 43, mineral oil or gear oil like 15W40. replace any illegible warning or informational signs. protect the connecting fittings of the hydraulic hoses. The snow plow should be stored in the retracted position - with the actuators retracted in a dry and clean place, not accessible to unauthorized personnel or animals, on flat level and hard surface under a roof or other covering which will protect it from atmospheric weather conditions. 8. TRANSPORT AND DELIVERY The snow plow is delivered assembled, fully adjusted and ready for use. During transport the snow plow should be on a level and hard surface and should be secured using transport belts to prevent it from shifting. When loading the plow on a transport vehicle it should be lifted using transport hooks/openings which are marked with special labels. Use only a lift/hoist with the lifting capacity no smaller than the weight of the snow plow

27 9. TECHNICAL CHARACTERISTICS Tab. 7. General characteristics of medium duty snow PSV plow Plow type PSV 161 PSV 181 PSV 201 PSV 231 PSV 251 PSV 271 PSV 301 Working width min. max. [cm] Plowshare height [cm] 90/80/90 91/80/91 92/80/92 94/80/94 95/80/95 96/80/96 98/80/98 Dimensions: lenght/width [cm] 97/163 99/ / / / / /303 Mount type cat. I/II cat. II Weight [kg] The operating width of the plow changes along with the settings of the moldboards. The hydraulic system allows for the moldboards to rotate within the range of ±30. Tab. 8. General characteristics of medium duty snow PSV Up (H) plow Plow type PSV 231 Up (H) PSV 251 Up (H) PSV 271 Up (H) PSV 301 Up (H) Working width min. max. [cm] Plowshare height [cm] 94/80/94 95/80/95 96/80/96 98/80/98 Dimensions: lenght/width [cm] 134/245/ /285/ /285/ /315/151 Mount type Plate PN-EN (DIN 76060) Weight [kg] 450 (520) 505 (575) 520 (585) 555 (630) The operating width of the plow changes along with the settings of the moldboards. The hydraulic system allows for the moldboards to rotate within the range of ± DISASSEMBLY AND DISPOSAL During assembly and disassembly please remember about body protection and environmental protection Disassembly In the event of partial wearing out of the snow plow it should be repaired by replacing wornout components. In order to accomplish this, the plow should be carefully cleaned and washed. If necessary drain the oil into a watertight container or plug up the connecting fittings. Next replace the worn-out parts with new ones using new connections, hardware and gaskets. The bolts should be tightened according to the class of their strength (Tab. 6). During assembly and disassembly use extreme caution and use schematics from the spare parts catalogue. Damaged or worn-out parts should be kept in a designated place and then delivered to a scrap yard or recycling center Dismantling and disposal In the event of wearing out of the plow to the level which does not allow its further operation it should be disposed of. In order to accomplish this, the plow should be carefully cleaned and washed. First drain the oil from the hydraulic system and send off to be recycled. Next disassemble the snow plow remembering to separate the parts according to the material they are made of and deliver them to a scrap yard or a recycling center

28 ATTENTION: When unhitching the machine pay particular attention to additional threat such as crush or cut. Special protective equipment must be used: gloves, protective clothing, glasses etc Environment the snow plow is fully environmentally friendly materials of the plow are in 95% recyclable. packing materials of the plow are 100% recyclable. worn-out plow parts and packaging should be recycled according to local recycling regulations. during the entire lifetime of the plow please be careful not to allow the oil to leak out of the hydraulic system which could cause contamination of the natural environment. 11. WARRANTY Warranty card This product has been checked and cleared for use - it conforms to the Technical Acceptance Specifications (in accordance to the technical documents for this product). SNOW PLOW PSV, PSV Up (H) Plow type Serial number Date of manufacture seal Date of sale Seller signature Seller seal Uncompleted, corrected or illegible warranty card -is void

29 11.2. Warranty conditions 1. The manufacturer guarantees the quality and proper function of the snow plow covered by this warranty if the use of the snow plow is in accordance to the operating manual. 2. Faults or malfunctions of the plow which become apparent within a 12 month period of the date of purchase will be corrected free of charge at the buyer's facility or at the manufacturer. 3. Any faults or malfunctions should be reported in person, by letter or phone.repairs will be performed within 14 days. Warranty repairs are done by the manufacturer by an authorized service provider. 4. Claims for product replacement or returns are accepted and processed by the manufacturer within 14 days. 5. Conditions caused by the following do not qualify for warranty repair: random events or others for which the guarantor is not responsible, utilizing the plow not in accordance to the operating manual or its intended use, natural wear of exploitative elements, damage to elements of the snow plow as a result of overloading, damages resulting from overloading the plow evident through the breaking of the securing bolts or plastic deformation of the pressure plates of the mount, plowing without the floating function of the TPH engaged, any mechanical damage, improper maintenance or storage of the plow. 6. The buyer will be charged a service fee if the manufacturer assesses that the product being claimed under warranty has no faults or malfunctions confirmed by independent expert. 7. Elements of the snow plow not subject to warranty as a result of natural wear during operation: blade inserts, connecting elements, selflubricating bushings, pins securing the actuator or mount, support wheels, sliding skids, clearance lights, etc. 8. Guarantor has the right to void the warranty in the event of: changes made to its construction or intentional damage, extensive damage due to a random event or other for which the guarantor is not responsible, lack of required signatures, seals or an attempt to forge them in the warranty card, operating the device not according to its use or the operating manual. 9. Manufacturer can break the service agreement with immediate effect when the user does not pay receivables under the agreement in a timely manner and the delay in payment is longer than 30 days from maturity date. Breaking the service agreement by the Contractor for causes lying on the the user side makes simultaneous termination of the warranty given for the particular machine. 10. Manufacturer does not bear any compensation responsibility for the loss caused by the machine breakdown during its operation

30 The serial number and the information from proof of purchase are necessary for filing a warranty claim Record of warranty repairs Repairs performed and replaced parts: Date, seal and signature of the person performing the repair. Date, seal and signature of the person performing the repair. Date, seal and signature of the person performing the repair. 12. PARTS LIST The parts list is included in the parts catalogue which, similar to the operating manual, is an inseparable part of the snow plow's equipment