TOP 3 PUM mini-loaders, their design and technical characteristics

PUM-500U
Operating instructions for the PUM-500U loader can be downloaded in PDF format, size 2.9 MB PUM-500U.pdf

Home page » Operating manual for the PUM-500U loader

Pum 500 - Universal small - sized loader produced by Uralvagonzavod.

The manufacturer PUM 500 is a research and production corporation that is engaged in the development and production of freight railway cars, military equipment and road construction machines. The corporation includes research institutes, design bureaus, and production facilities in Russia and Europe. The company's main enterprise in the production process is a plant located in Nizhny Tagil.

Features and Benefits

The bottom frontal PUM with side rotation has a simple design and its advantages:

• the boom hydraulic system consists of 4 hydraulic cylinders, 2 - lifting and lowering, 2 - controlling the bucket;
• the boom is attached to the rear, and the bucket comes out from the front of the cabin, thereby maximizing the unloading height
• the costs of the PUM 500 mini-loader quickly pay for themselves;
• a variety of attachments provide a wide range of applications;
• The loader has the smallest turning radius (2m) - especially for working in cramped conditions. The Beaver changes the direction of movement not by turning the wheels, but by adjusting the rotation speed: for a right turn, the right side is braked, for a left turn, the left side is braked (the principle is like a tank);
• loader weight with bucket = 2.76 tons;
• cabin glazing - reinforced glass;
• to increase cross-country ability, tracks can be installed;
• developed after-sales service due to a large number of plant dealers.

front loader pum 500 instruction manual

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Attachments

The range of attachments is very diverse and includes about 2 dozen additional units , both simply mounted and active:

• hook - lifting and moving loads up to 500 kg;
• bucket without teeth (welded sheet steel) - loading of bulk and fine materials and soils of categories I-IV;
• bucket with teeth (steel bucket with 6 teeth) - collecting and moving bulk and small-sized materials (crushed stone, soil, peat, etc.), working with rocks and frozen soil;
• cleaning/road brush with or without storage – for cleaning various areas;
• snow plow with one blade - for removing snow and leveling the soil, the angle of the blade is adjustable;
• rotary snow blower - snow removal;
• forks for a loader (mounted) - for moving palletized goods;
• fork – moving and loading bushes, branches, pipes, logging waste, wood shavings, straw, sawdust, bark, etc.;
• two-axle flatbed trailer - weight = 750 kg, volume = 1 m³, connected using a towbar;

• track set - mounted on top of standard loader tires, increases traction on soft soils or in winter conditions;
• backhoe excavator - digging trenches, ditches and pits. Volume = 0.062 m³. Hydraulic drive, maximum digging radius = 3.6 m, digging depth = 1.45 m, unloading height = 2.35 m, bucket lift height 2.5 m, working area = 110°;
• hydraulic drill - for drilling wells in the ground up to 1 m, Ø = 28 cm;
• concrete mixer - loading volume = 100 l, ready concrete = 65 l, operating temperature ≥ +5°C;
• pumping unit - water pumping speed = 100 m³/hour, power consumption = 7.5-9.5 kW;
• compressor - for supplying air to equipment, pneumatic tools, power consumption (nominal) = 9.2 kW;
• welding installation - for electric welding when other power sources are unavailable.

Model overview

The first PUM 500 cars began to be produced in 1992.

Since 2005, the PUM-500 has been replaced by a modified model PUM-500U .

the PUM-1000 and PUM-600 models were released , in which the control levers were replaced with joysticks, the cabins were improved, and a thermoelectric micro-climatic unit was used for the first time.

The line of mini loaders includes models PUM-800 and the largest standard size PUM-1250. In 2012, the plant began production of a new mini-loader PMK-6.02, created on the basis of PUM-500U.

Specifications

PUM-500U with German “HATZ” engine

Replacing the PUM 500 engine increased the power of the loader, reduced fuel consumption, and the machine began to comply with Euro II and EPA standards.

The HATZ 2M41 manufactured by HATZ Diesel (HATZ Motorenfabrik GmbH & CO.KG) is the world's first industrial diesel engine with built-in automatic protection.

Hatz multi series is a series of long-life multi-cylinder industrial diesel engines. Hatz multi series engines are used in construction, mining, road repair equipment, and in diesel generator sets.

Before making a decision to purchase a PUM, we recommend reading reviews from real owners of loading equipment on specialized farming forums or forums about special equipment.

Here, owners share useful information and their own experience, the necessary PUM 500 diagrams, and look for instructions on how to independently repair equipment.

Here is one such review (spelling and punctuation preserved):

1 engine is not bad, there are spare parts in stores. 2 fuel consumption is low. 3 starts well in cold weather 4 yes, it eats any diesel fuel. My choice was pum or mksm. mksm costs twice as much, but the prices for spare parts are the same.

General - Repair Instructions for Pum-500

Repair Instructions Pum-500

And the repair and operation manual for the Puma 500 stood openly on the road... In the clearing. Download the repair and operation manual for Puma 500.

Pum-500 loader operating manual - instructions

PUM - 500 is a highly efficient machine capable of performing a wide range of loading and unloading, cleaning and repair, earthmoving, etc.

I recommend looking for reviews on these Pumas 500 on the Internet, adding the cost of repairs and spare parts in the first season = better to buy.

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The problem is the following: the speed was lost, I removed the propulsion pump, checked it, repaired it. Repair instructions for Puma 500 Loader repair, excavator repair Yekaterinburg, repair. The technical characteristics of the Puma 500 include high performance. Help with advice, the device is Pum-500. I recommend looking for reviews of these Pumas 500 on the internet. We offer to buy a printed forklift operating manual with repair instructions for Pum-500 and Pum-500u loaders. The problem is the following: the speed was lost, I removed the propulsion pump, checked it, repaired it. Agricultural and construction and repair companies. Management of work processes of the Pum-500 mini loader. Pum-500 is a highly efficient machine capable of performing a wide range of loading and unloading, cleaning and repair, earth-moving, etc. For more than 10 years, our company has been producing all types of repairs of mini-forklifts Puma 500 in the city. Delivery to all. Plot. 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To obtain the necessary information on operation, maintenance and repair instructions for the PUM-500 loader (Uralvagonzavod, Nizhny Tagil), you can purchase this manual. In this book you can easily find instructions for maintenance and repair operations of the loader, a list of technical fluids used, adjustable parameters, etc. A printed manual in book form can be sent to you either through a shipping company...

The technical characteristics of the PUM 500 accommodate the high performance of agricultural and construction and repair companies.

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Video of loader operation

In the video you can see how a loader clears snow:

Special automotive equipment is a reliable and faithful assistant to a person in solving many household and industrial issues. With its help, you can transport goods, cultivate agricultural fields, and take part in public works. This article will review the PUM-500 loader, the technical characteristics of which will also be indicated.

Areas of application

The PUM-500 loader is most often used:

• In logistics operations. This vehicle performs loading/unloading of piece items, as well as their transportation around the production site or warehouse area.
• During the construction of residential and industrial facilities. PUM-500, the technical characteristics of which allow it to perform its assigned functions over a long period, is optimal for loading/unloading various soils (light clay, loam, sand).
• For the needs of the population. The compact dimensions of the loader allow it to cope with assigned tasks in a small space. You can also use the Beaver to do excavation work.
• In a communal environment. The machine is very effective for thoroughly cleaning park areas, roads, sidewalks from snow and dirt in city conditions. In addition, the loader provides excellent terrain planning. Having low ground pressure and small dimensions, the Beaver does not cause any serious damage to roads and top layers of soil.

Purpose

The PUM-500 loader has a fairly wide range of applications, namely, it is used during the construction of any facilities, in industrial sectors, in various organizations, in forestry, as well as in public utilities. The following should also be noted:

• The machine can perform any loading and unloading work with piece cargo, as well as move them over certain distances and across warehouse territories.
• The loader copes well with loading and unloading various materials and soils, both bulk and small-sized ones. It can also work with the first, second, third and fourth categories of soil mass density.
• The equipment is capable of working in rather cramped workspace conditions. Most often these are warehouses. When used in construction, due to its small overall dimensions, the loader is capable of digging trenches in places inaccessible to other special equipment.
• In public utilities, PUM-500 is used to clear road surfaces, parks, parking lots, sidewalks and other similar areas from snow and various contaminants. In addition, the machine also copes with territory planning, thanks to the rather low specific pressure of the wheels on the ground, as this allows it not to damage the upper soil layers.

And this is not a complete list of the work it performs, since due to its compactness, the equipment can be used not only in standard conditions, but also in cramped ones, which significantly expands the range of work performed by this loader.

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Environmental conditions

PUM-500 can be used both in standard and in rather cramped conditions. The machine can be used in a temperate climate zone. The loader operates without problems in the temperature range from -30 to +40 degrees Celsius. The operator in the vehicle is provided with very comfortable conditions thanks to the thoughtful design features of the cabin, equipped in accordance with all the rules of ergonomics and biomechanics.

Options

Let's study PUM-500 in even more detail. The technical characteristics of the machine are as follows:

• The carrying capacity is 500 kilograms.
• Travel speed – 9 km/h.
• Length – 3400 mm.
• Width – 1565 mm.
• Height – 2260 mm.
• Weight including bucket – 2760 kg.
• The maximum unloading height from the bucket is 2150 mm.
• Engine type: four-stroke, diesel, two-cylinder, air-cooled.
• Rated motor power is 22.1 kW.
• Crankshaft rotation speed – 2000 rpm.
• Specific fuel consumption – 258 g/kWh.
• Fuel tank capacity is 46 liters.
• Wheel track width – 1300 mm.
• The minimum turning radius in transport position is 2000 mm.
• Maximum traction force – 12 kN.
• The running mechanism is hydromechanical.
• Wheel formula – 4x4.
• Wheel tire type – GK9.00-15 (230x380).
• The maximum pressure in the travel hydraulic system is 280 bar.
• The maximum pressure in the hydraulic system of the working equipment is 160 bar.
• The electrical system is single-wire with a voltage of 12 V.
• Battery type – ZST-155EM, 2 pieces.

Engine design feature

Early versions of the Universal Small-Size Loader-500 were equipped with a D120-10 diesel engine, which was produced by the Vladimir Motor and Tractor Plant. It is characterized by the presence of two cylinders and air cooling. The main advantages of the loader are its high efficiency of 50% compared to gasoline analogues and its long service life, achieved using innovative technologies. The equipment is started by an electric starter.

Engine D120-10

The engine parameters of the loader are as follows:

• Cylinder volume – 2.08 l.
• Power – 22.1 kW.
• Rotation – 2000 rpm.
• Cylinder diameter – 105 mm.
• Dimensions: 689*628*865 mm.

More modern models of the loader have a German Hatz 2M41 engine. Its advantage is its ability to work in any weather conditions.

Hatz 2M41 parameters:

• Power – 23.7 kW.
• Rotation – 2000 rpm.

Engine Hatz 2M41

The PUM-500 mini-loader is a universal equipment used in a wide range of work. It takes up little space, is easy to operate and combines the functions of many other pieces of special equipment using interchangeable attachments.

Analogues of the PUM-500 loader include Bobcat S175 and MKSM-800.

Related video: Pum 500 – loader

Attachments

Studying the auxiliary components of a loader is, of course, also a very important technical characteristic. The PUM-500 rotary snow blower is designed for thorough cleaning of streets, sidewalks and other areas from snow.

In addition, if necessary and depending on the situation, the following units can be quickly and reliably interfaced with the machine:

• Bucket without teeth. It is used for loading sand, soil and other bulk materials.
• Bucket with teeth. It is used for the same operations as its “toothless” counterpart, but also for working with rocks and frozen soils.
• Road brush. It's easy to guess that they use it to sweep the streets.
• Mounted forks. They are used to service pallets and boxes.
• Fork grip. Used in the municipal sector for shipping trees, branches, bushes, pipes.
• Hydraulic drill. It is used for drilling wells up to one meter deep.
• Hanging hook. With its help, there is an excellent opportunity to move loads weighing up to 500 kg.
• Concrete mixer. It allows you to quickly obtain 65 liters of ready-made concrete.
• Pump installation. It has a productivity of up to 100 cubic meters per hour and is used during repair work of water pipelines.
• Compressor. By connecting to it, you can use a pneumatic tool.
• Welding machine.
• Two-axle flatbed trailer. Its load capacity is 750 kg and its volume is one cubic meter.

Device

The front loader is designed quite simply. The wheelbase has a minimum length for greater stability and maneuverability, and the base itself has a low center of gravity.

The power unit is a diesel engine, which drives the loader itself. The hydraulic pump takes power directly from the diesel rotor.

The boom has only 4 hydraulic cylinders, two of which provide lifting and lowering, and the rest control the bucket itself directly.

Loader diagram PUM 500

Attachments

To expand the capabilities of the loader, it can be equipped with replaceable attachments:

• Standard bucket without teeth. Used for loading bulk fine-grained materials;
• Bucket with teeth. Allows you to work not only with bulk materials, but also with small-piece materials, and also allows you to work with rock formations or frozen soil;
• Road brush for cleaning the streets;
• Cleaning brush for cleaning work followed by garbage collection;
• Snow plow. The blade can be adjusted. However, this equipment is also suitable for leveling work with soil;
• A rotary snow blower is designed for removing snow from streets, sidewalks, and so on;
• Mounted forks allow this machine to perform the functions of forklifts and work with loads on pallets;
• The fork allows you to fix and transport various loads, such as bushes, pipes, branches and so on;
• A backhoe is used to dig trenches;
• A hydraulic drill is used for drilling wells up to 1 meter deep, which is mainly suitable for utility purposes;
• The hinged hook is also used for transporting loads weighing up to 500 kg;
• Concrete mixer for concrete mixture;
• The pumping unit can pump out water at a speed of 100 cubic meters/hour;
• The compression unit is used to work with various pneumatic equipment;
• Welding installation;
• Two-axle trailer. Has a load capacity of 750 kg.

It is also possible to use a variety of equipment for road construction work.

Control

These machines turn around not by turning the wheel normally, but by regulating the rotation speed. In essence, it is the same as that of tanks. If you need to turn right, just brake the right side, if you need to turn left, then vice versa. This ensures a minimum turning radius.

Control occurs from a closed cabin using levers.

Separately for movement and separately for controlling the boom, as well as any possible attachments. They use a common control for the bucket hydraulic system.

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Model with German engine

PUM-500 (technical characteristics, reviews are given in this article) has been produced since 2005 with a HATZ 2M41 engine. This power plant has the following advantages:

• Air-cooled with axial fan available.
• Lubrication is carried out under pressure in a closed circuit.
• Hydraulic pumps have an auxiliary drive from the engine crankshaft.
• Reduced smoke generation during startup.
• A dry air filter is included.

This machine has the index “U” added to its designation, that is, the PUM-500U loader. In addition, the named engine is the world's first diesel engine with built-in automatic protection.

Positive traits

What is good about PUM-500? Its technical characteristics made it possible to provide the following advantages:

• Short payback period and optimal quality/price ratio.
• Excellent selection of attachments used.
• Compact dimensions and small turning radius.
• Efficiency and economy.
• High degree of noise insulation, comfortable and injury-proof cabin.
• Optimal ergonomics for the driver.
• All-wheel drive and sufficiently high ground clearance.
• Smooth ride while driving and operating accessories.
• The center of gravity is low, and therefore the machine is very stable.
• Low maintenance costs and easy repairs.
• Wide selection of spare parts and components.

PUM 800

Subtleties of work

How to use the PUM-500 loader correctly? The instructions for its operation state that the machine must be operated under the control of an experienced driver. At the same time, it is not allowed to overheat the motor and use unadapted attachments. The cleanliness of the oil in the hydraulic systems of the loader must correspond to the class specified in the technical data sheet. It is necessary to regularly check the level of lubricating and cooling fluids and fuel. In addition, electrical wiring and batteries deserve special attention. It is important that the cable insulation is reliable and that the batteries are fully charged.

Operating Manual Pum 500

I redid the entire hydraulic system from the pump to the cylinders, removed the valve blocks located on the sides, got rid of several tees and tubes that connected these valves to the valve on the hydraulic panel and the drain line. And the diagram now represents: from the pump there is one pipe to the distributor, from it there is one pipe that drains into the radiator, two pipes for the boom lift, two for the bucket, two for the attachment. All the removed valves are in the distributor - the quality of the hydraulic system has not been affected. I also threw out the emergency boom lowering crane - now it is even with the engine turned off. Can be lowered under the control of the distributor. You can put it in its original place with minimal modifications; sometimes bending the tubes in place is required. Sergey, could you tell me where the emergency boom lowering valve is located, otherwise for some reason on mine the boom stops locking from time to time, like a normal bucket, but the boom falls. ((I think that’s the problem.

Thanks in advance. Tell me, I bought a Pum 500U, but with the gas to the floor, the speed is like that of a pedestrian (((the car sat for a couple of years and didn’t work at all, maybe there are some tricky factory limiters or something like that? According to the passport, it’s 11 km per hour must go. To determine the malfunction, it is necessary: ​​1. Is the screw on the tank open and is the system aired? Unscrew the plug on the main filter and make sure. 2. Check the integrity of the safety valve and its setting in the travel distributors. 3. Check the operation of the KNK valve responsible for the hydraulic pump is brought to a minimum (when the stroke is not engaged) and when the stroke spools are turned on to the required volume. If necessary, adjust. 4. Check whether the pump leaves the minimum - to do this, unscrew the plug (under the hexagon), place a bucket and turn on any of the stroke spools. To The loader has not gone anywhere, it is better to turn on the turn - after resting the loader against an obstacle.

To obtain the necessary information on operation, maintenance and repair instructions for the PUM-500 loader (Uralvagonzavod, Nizhny Tagil), you can purchase this manual. Cain And Abel Movie 1985 Torrent here. Operating manual PUM 500 - My files - File directory. Operating manual PUM 500. Small-sized loaders PUM-500 are designed for operation in areas with a temperate climate in the range. TRUST - uvz pum-500 repair manual. Cost, reviews, download, free download puma 500 loader manual Operating manual PUMA-250 Repair and maintenance manual puma. Thesis - For SDM 'Modernization of a small-sized loader. Loaders mainly use hydraulic drive systems for working bodies, download free thesis P.

After turning on the stroke, oil should begin to spray (flow) from under the side and the piston will move closer to the end. This procedure must be done several times. If the piston does not come out, then the pump is faulty. 5.Check whether the stroke spools move completely. 6.Check the tightness of the valves installed on the motors. 7.Works 1 to 4 must be carried out in the listed sequence.

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Users' opinions

How popular is the PUM-500? Feedback from owners is clear in their answer to this question - consumers really like the car, which is also evidenced by its high sales levels. In particular, you can often hear from loader owners that it has, in their opinion, a very good engine that consumes little fuel. In addition, the vehicle starts without problems on cold winter days. The unit is unpretentious in terms of diesel fuel quality. And most importantly, PUM-500 is almost two times cheaper than its competitors with the same price for spare parts. It is also important that in the event of a breakdown, in most cases the car can be repaired independently, without resorting to the expensive services of specialists.

As for directly operating the forklift, in order to still drive it without problems, certain skills and experience are required on the part of the driver.

FAQ: Frequently asked questions and answers.

Question: The PUM goes straight, but doesn’t go uphill, it turns poorly. What to watch? Answer: Most likely, if the stroke pump is working properly, the initial adjustment of the pump regulator and the NCC (negative control valve) is broken. First, try tightening the adjusting nut of the KNK (negative control valve) a quarter turn, you can find it by tracing it with your finger from the stroke pump regulator along a thin tube or scroll below ).
If this helps, run the loader for a long time to warm up the oil. Adjust the regulator and CNC before achieving a satisfactory result. More details from a group member (Alek Men): “Greetings again colleagues, rewrite the fact. Finally, my cougar rode as it should. If we tighten the screw on the pump, we increase the flow rate and lose torque. We unscrew it, increase the torque, and reduce the flow rate. In short, if you don’t have speed, turns slowly, the engine is not fully loaded, then turn the screw on the pump half a turn. Next, knk, if the engine is not fully loaded, then unscrew it. I can barely manage myself, we’re spinning.” Question: The bucket/boom lowers randomly. What to check and in what order? Answer: 1. First, we check the cylinders for the tightness of the piston seals (one at a time). To do this, in the extended cylinder, unscrew the liner from the rod side and press on the extension; if the cuff in the cylinder is intact, then oil should not leak out of the rod cavity. We also check in the opposite direction: with the rod retracted, we press on the slide and unscrew it from the piston cavity. 2. We check the hydraulic lock: to do this, unscrew the tube (sleeve) from the distributor (which goes to the rod end) together with the angle (bonjo) and unscrew half of the hydraulic lock (with a 24 or 27 head, the RVD is just attached to this half of the hydraulic lock), there is a ball with a spring and when it falls out, the cylinder stops holding. 3.Next , and lastly, we check the safety valve, which is located on the tubes near the hydraulic tank, it looks like a 36 hexagon, to check, change them with each other and look at the result. All this work can be done without an overpass. In the case when both the boom and the bucket do not hold, there is no point in swapping the valves. It is recommended to disassemble them and wash them. Check the wear on the valve and seat. If necessary, replace or grind in if production allows. Photos and comments on this issue https://vk.com/wall-92805240_3392

Question: How to remove the engine? Answer: I recommend getting a pit or overpass. Remove the underbody protection - 8 M8 bolts. We unscrew the engine mounts, unscrew the pump gear mounts. Using a ratchet, universal joints and extensions, unscrew the pump gearbox from the engine bell. You will be sure that you have unscrewed everything, but the engine will refuse to come off the bell (it will move away by a maximum of 50mm). All because you did not unscrew the nuts from the lower bell studs. We put a tripod or put a crowbar on the boom, hook up a hand winch, and lift the engine. It is advisable to hook up a second hand winch and lift the pump gearbox separately. If there is no second winch, we use a crowbar or adjust a jack. Now we look through the bell studs with a mirror and find two unscrewed nuts at the very bottom of the bell. They are not visible without special tricks or without a mirror. We remove the wiring and other unnecessary things from the engine. We lift the engine and roll it out through the stern.

Question: I'm looking for tracks for PUM. Who is selling? Or where to buy/get it? Answer: you need such a cow yourself; it is extremely rare that you come across them for sale in a group. Wool Avito or buy new ones. If it’s expensive, one of the possible options is to make it yourself. An example of the implementation of this option is https://vk.com/wall-92805240_2927

Question: Hello, in the hydraulic system of the working parts, during operation, a strong noise is heard and the oil discharge tube rattles (vibrates) strongly. When the boom and bucket operate, the noise is different. Hydraulic noise, how to get rid of it? Answer: Hello guys, I got rid of the noise - air leaks. Author of the answer: Alexey Lisovsky

Question: Where is the regulator and its adjusting screw located? Answer: On the drive pump.

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