Individual parts make the big picture

The CAT dipper stick cylinder can be attached to two different attachment points, influencing the boom trajectory. When the boom is attached to the top hole, movement in the direction of the machine is restricted and the bucket of the test machine cannot touch the dozer blade.
The CAT dipper stick cylinder can be attached to two different attachment points, influencing the boom trajectory. When the boom is attached to the top hole, movement in the direction of the machine is restricted and the bucket of the test machine cannot touch the dozer blade.
MAINOS (teksti jatkuu alla)
MAINOS PÄÄTTYY
MAINOS (teksti jatkuu alla)
MAINOS PÄÄTTYY
There were big differences in the display sizes. The largest is the colourful and easy-to-read display of the Wacker Neuson. The machine also comes with a reversing camera.
There were big differences in the display sizes. The largest is the colourful and easy-to-read display of the Wacker Neuson. The machine also comes with a reversing camera. Kuva: Arto Turpeinen
The Kubota display is at the smaller end of the scale. The small, black-and-white and outdated display is reminiscent of excavator displays twenty years ago.
The Kubota display is at the smaller end of the scale. The small, black-and-white and outdated display is reminiscent of excavator displays twenty years ago. Kuva: Arto Turpeinen
The Bobcat fire extinguisher was fixed right at the entrance. This was not an issue when entering and exiting the Bobcat.
The Bobcat fire extinguisher was fixed right at the entrance. This was not an issue when entering and exiting the Bobcat. Kuva: Arto Turpeinen
The Takeuchi rapid action couplings also require actuation of a pedal. Once you get used to it, it's a great solution.
The Takeuchi rapid action couplings also require actuation of a pedal. Once you get used to it, it's a great solution. Kuva: Arto Turpeinen
All the normal excavator track options were represented among the tested vehicles: rubber tracks, track belts with rubber floor plates and track belts with steel floor plates. The CAT and ECM were equipped with the latter, even though both had rubber pads attached to the steel floor plates with bolts. The Komatsu had rubber base plates screwed directly onto the track belt. These are not particularly common on excavators - presumably because the adaptability of this type of track to different conditions is not as good as that of rubber pads attached with bolts. For the rubber tracks, the manufacturers preferred Bridgestone; the JCB (with the Tracmaster product brand) and the Kubota were equipped with Bridgestone rubber tracks. Also, the rubber base plates on the Komatsu were from Bridgestone. The Takeuchi and Bobcat tracks were provided with product
All the normal excavator track options were represented among the tested vehicles: rubber tracks, track belts with rubber floor plates and track belts with steel floor plates. The CAT and ECM were equipped with the latter, even though both had rubber pads attached to the steel floor plates with bolts. The Komatsu had rubber base plates screwed directly onto the track belt. These are not particularly common on excavators - presumably because the adaptability of this type of track to different conditions is not as good as that of rubber pads attached with bolts. For the rubber tracks, the manufacturers preferred Bridgestone; the JCB (with the Tracmaster product brand) and the Kubota were equipped with Bridgestone rubber tracks. Also, the rubber base plates on the Komatsu were from Bridgestone. The Takeuchi and Bobcat tracks were provided with product Kuva: Jussi Laukkanen
The CAT dozer blade is the only one to have a replaceable cutting blade.
The CAT dozer blade is the only one to have a replaceable cutting blade. Kuva: Arto Turpeinen
The Komatsu door opening was by far the narrowest. Larger operators have to manoeuvre themselves awkwardly.
The Komatsu door opening was by far the narrowest. Larger operators have to manoeuvre themselves awkwardly. Kuva: Arto Turpeinen
The Komatsu joysticks had fixed extensions for some reason, although the lever could have been attached further down. The distances were therefore longer than necessary.
The Komatsu joysticks had fixed extensions for some reason, although the lever could have been attached further down. The distances were therefore longer than necessary. Kuva: Arto Turpeinen
The Kubota is equipped with lots of mirrors, which are very cleverly placed.
The Kubota is equipped with lots of mirrors, which are very cleverly placed. Kuva: Arto Turpeinen
The JCB hydraulics are controlled by Rexroth multiple way valves. The compact valve unit is beneficial to the manufacturer of the machine, but replacing a hose takes some time if the defect affects the bottom row.
The JCB hydraulics are controlled by Rexroth multiple way valves. The compact valve unit is beneficial to the manufacturer of the machine, but replacing a hose takes some time if the defect affects the bottom row. Kuva: Jussi Laukkanen
The Wacker Neuson has a Rexroth LUDV valve unit that, despite its relatively simple build and small exterior dimensions, is capable of balancing the flows of multiple simultaneous working movements.
The Wacker Neuson has a Rexroth LUDV valve unit that, despite its relatively simple build and small exterior dimensions, is capable of balancing the flows of multiple simultaneous working movements. Kuva: Jussi Laukkanen
The Kubota has a valve unit from Kyb. The large housings of the pilot valves make it appear large and complex. Nevertheless, the inside has completely normal hydraulic technology.
The Kubota has a valve unit from Kyb. The large housings of the pilot valves make it appear large and complex. Nevertheless, the inside has completely normal hydraulic technology. Kuva: Jussi Laukkanen
Yanmar is the most popular engine choice among the machines tested. The Bobcat (pictured), ECM and Takeuchi are all equipped with it. The Komatsu is also equipped with a Yanmar engine. The first three all have the same 4TNV98 base model, but the engines differ slightly from each other, which can be seen in the different levels of peak performance. The Komatsu has the 4D98E model.
Yanmar is the most popular engine choice among the machines tested. The Bobcat (pictured), ECM and Takeuchi are all equipped with it. The Komatsu is also equipped with a Yanmar engine. The first three all have the same 4TNV98 base model, but the engines differ slightly from each other, which can be seen in the different levels of peak performance. The Komatsu has the 4D98E model. Kuva: Jussi Laukkanen
The Perkins404D-22T engine from Wacker Neuson is the smallest of the test engines in terms of displacement: 2.2 litres. The same applies to the peak power, which is 36.3 kW.
The Perkins404D-22T engine from Wacker Neuson is the smallest of the test engines in terms of displacement: 2.2 litres. The same applies to the peak power, which is 36.3 kW. Kuva: Jussi Laukkanen
With the CAT, the main components of the machinery have been successfully arranged to allow a generous working area around the pump, the engine and the valve unit. It was the best in the test group in this regard. The assumption is that with the CAT, at least part of the hoses can be replaced with a moderate level of work. Hose changes are among the things that are likely to be needed on a machine which is just a few years old (look at also the next two pictures).
With the CAT, the main components of the machinery have been successfully arranged to allow a generous working area around the pump, the engine and the valve unit. It was the best in the test group in this regard. The assumption is that with the CAT, at least part of the hoses can be replaced with a moderate level of work. Hose changes are among the things that are likely to be needed on a machine which is just a few years old (look at also the next two pictures). Kuva: Jussi Laukkanen
Cat 308E2 CR SB engine
Cat 308E2 CR SB engine Kuva: Jussi Laukkanen
Cat 308E2 CR SB engine
Cat 308E2 CR SB engine Kuva: Jussi Laukkanen
Digging stability with a zero tail excavator can be improved with an additional weight fixed in the engine compartment, as has been done with the JCB. Unfortunately, the steel lump almost covers the whole engine
Digging stability with a zero tail excavator can be improved with an additional weight fixed in the engine compartment, as has been done with the JCB. Unfortunately, the steel lump almost covers the whole engine Kuva: Jussi Laukkanen
Digging stability with a zero tail excavator can be improved with an additional weight fixed in the engine compartment, as has been done with the JCB. Unfortunately, the steel lump almost covers the whole engine
Digging stability with a zero tail excavator can be improved with an additional weight fixed in the engine compartment, as has been done with the JCB. Unfortunately, the steel lump almost covers the whole engine Kuva: Jussi Laukkanen
The dozer blade hose of the ECM was temporarily trapped between the cylinder bracket and the support beam.
The dozer blade hose of the ECM was temporarily trapped between the cylinder bracket and the support beam. Kuva: Jussi Laukkanen
It is difficult to find space for all the components required for reduced tail excavators. Sometimes the end result looks like a stopgap solution. In the Takeuchi and the ECM, the battery is placed at the bottom of the revolving superstructure, meaning that its replacement requires a certain amount of disassembly.
It is difficult to find space for all the components required for reduced tail excavators. Sometimes the end result looks like a stopgap solution. In the Takeuchi and the ECM, the battery is placed at the bottom of the revolving superstructure, meaning that its replacement requires a certain amount of disassembly. Kuva: Jussi Laukkanen

There were some invidual parts in the tracked excavators of the comparison. They are shown in pictorial.

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