Komatsu track tensioner

Komatsu track tensioner DEFAULT
BrandModelExcavatorPC30,PC40,PC45,PC60,PC75,PC100,PC120,PC200,PC220,PC300,PC350,PC400E70B,E110,E120,E200B,E307,E311,E312,E320,E322,E325,E300B,E330BulldozerD20,D21,D30,D31,D37,D40,D50,D60,D63,D65,D80,D85,D135,D155,D355,D375,D3C
D3D,D4,D4C,D4D,D4E,D5,D5H,D6,D6C,D6D,D6H,D7E,D7G,D8N,D8K,D9NHitachiEX30,EX40,EX60,EX100,EX120,EX200,EX220,EX300,EX400,ZAX200,ZX330,ZX350
UH07,UH081,UH083DaewooDH55,DH200,DH220,DH280,DH300,DH320HyundaiR55,R110,R130,R150,R200,R210,R250,R290KobelcoSK60,SK100,SK120,SK200,SK220,SK300,K904,K907MitsubishiMS110,MS120,MS140,MS180KatoHD140,HD250,HD400,HD550,HD700,HD850,HD900,HD1220SamsungMX8,SE200,SE210,SE280,MX292,SE350SumitomoSH70,SH100,SH120,SH160,SH200,SH280,SH300,SH340
Sours: https://www.wsgparts.com/komatsu-pc75-excavator-tension-recoil-spring-assy-track-adjuster-p02084p1.html

Track Adjuster Recoil Unit For Komatsu Track Excavator

  • Idlers suitable for track-type earthmoving and special application machines ranging from 0.8 to 500 tons.

  • Cast and fabricated versions available.

  • Wide range of spring type adjusters, nitrogen accumulators, elastomeric tension units, friction ring units, as well as tensioning systems.

  • New idler wheel for mining dozer with new “X section” reinforced design.

Track Adjuster Recoil Unit – Komatsu – PC200-6,PC210-7 – 20Y-30-29160

Weight

65 kg

Manufacturer Part No.

21K.30.K1010

OEM Part No.

20Y-30-29160

Make

Komatsu

Model

PC200-6,PC210-7

Track Adjuster

Adjuster Recoil Unit

>>>Our Service of the Track Adjuster Recoil Unit For Komatsu Track Excavator

Track CylinderTrack Adjuster

Pre-Sales Service

* Inquiry and consulting support. 

* Sample testing support. 

* View our Factory.

After-Sales Service

* Training how to instal the machine, training how to use the machine. 

* Engineers available to service machinery overseas.

>>>Package detail

Track CylinderPackage
  1. Cartons, wooden cases, pallets, etc., according to customer requirements

Service
  1. Genuine Quality

  2. Competitive Price

  3. Short lead time

  4. High Accuracy

  5. One-Stop Shop

QINDING Manufacturers a wide range of Undercarriage Parts Components including:

  • Track Chains (Standard, Heavy Duty & "PPR" Series)

  • Forged and Cast Drive Segments

  • Drive Sprockets

  • Idlers

  • Lower Rollers

  • Carrier Rollers

  • Track Tensioning Assemblies and Components

  • Heavy Duty Forestry Roller and Idlers

Adjuster Recoil Unit

Track Adjuster Recoil Unit For Komatsu Track Excavator

Track Cylinder

Get the latest price? We'll respond as soon as possible(within 12 hours)

Sours: http://www.cnqinding.com/product/track-adjuster-recoil-unit-for-komatsu-track-excavator
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It is worth noting that approximately 20% of the cost of a crawler based machine is the undercarriage assembly. More importantly, nearly 50 percent of your maintenance costs will go into maintaining that assembly due to the harsh, high wear work environment the undercarriage is subjected to.

There only two notable operating factors that are controllable that can optimize undercarriage wear/costs, operator skill and maintaining the correct chain tension for the operating conditions

If the track tension s too loose tracks can de track or de rail. Operated too tight due to over packing with dirt or mud, the undercarriage is working with high loading on all the undercarriage components and will cause power loss of the machine and high wear rate of:

  • Internal joints,
  • Links and track bushings,
  • Idler and roller wear,
  • Sprockets,

Refer to your operator’s manual for track inspection and tensioning procedures.

A general rule of thumb guide is 2” of track chain droop, measured from the top of the lowest track pad to a straight edge positioned across the top of the track pads from the front idler to the top idler.

track tension measurement

Remember to adjust track tension to the operating conditions. As packing conditions increase, the adjusted track tension should decrease.

When a track adjuster fails, repairs are required as soon as practical to:

  • Reduce the onset of heavy premature wear or breakage.
  • Reduce the risk of de railing a track.
  • Reduce unplanned maintenance costs and downtime.

Tensioner Function

Track tension is hydraulically achieved through a track adjuster, which is a spring loaded hydraulic cylinder positioned behind and bolted to the front idler. Recommended OEM tension adjustments are achieved by, pumping grease into, or draining grease from, the track adjuster valve.

Periodical visual checks of the tensioner for any signs of leakage is important and if leaks are detected bring your machine in for repair as soon as possible.

Track Adjuster failures

Function of a track adjuster assy is not only used to push the idler wheel forward to increase tension / reduce slack or droop but also to protect the undercarriage from damage when the tractor contact a large solid object i.e. rocks, trees, deep holes, broken ground, stumps etc. Shock loadings are absorbed on impact by the heavy recoil spring which is preloaded to between 50 to +100 tons, depending machine size.

Common track adjuster failures are:

  • Leaking seals
  • Seized piston
  • Bent shaft
  • Broken spring

When a track adjuster fails the undercarriage will start to suffer an excessive wear condition that will continue until something breaks, exacerbating the problem, adding downtime and expense to the repair bill. It is advisable to carry our remedial repairs as soon as practical.

Track adjuster repairs and maintenance

Early warning signs of a failing / failed tensioner is either by routine inspection or when the correct track tension cannot be achieved. Either the grease is getting in but pressure leaking past the seals or it is escaping elsewhere. Other visual signs may also identify a broken or cracked spring. These conditions can be due to various reasons, such as:

  • Grease gun pressure not sufficient.
  • Grease valve blocked
  • A cracked cylinder or welded joint
  • Seals worn or broken
  • Grease evident around cylinder
  • Damaged piston or cylinder.
  • Idler jammed in rails.
  • A loose track
  • Broken spring

 

Should the spring be cracked or broken consult your nearest dealer to arrange them to e install the new replacement spring. They will have the necessary expertise and heavy hydraulic pressing equipment to undertake the installation safely.

Safety Alert:At no point should the spring retaining nut be tampered with unless by a trained technician working with a100 t press in a controlled environment. Severe or fatal injuries may result if the spring is otherwise released.

All repairs except changing the grease valve, needs the track to be unlinked and the idler and track adjust assembly rolled out of the track frame for further disassembly.

The piston shaft (#2) needs to be pulled out from the cylinder to check seals and packing for wear or damage. With Komatsu track adjusters or Idler cushions as they are referred to, there is nothing to undo to pull out the shaft. One out all worn parts should be replaced and the old grease inside the cylinder (#3) (cleaned out)

Hydraulic Cylinder

It is not uncommon to find the rods or shafts / pistons seized inside the cylinder and wont budge. This can be caused by ingress of dirt and water into the cylinder or the rod is bent, jamming the piston or shaft. This will elevate the degree of difficulty to the disassembly procedure, and will often require special tools, and expertise to resolve.

With the above failure condition, damage to the sealing surface of the cylinder bore is generally inevitable. Sometimes the cylinder bore surface can be restored with honing or if not a replacement cylinder will be the immediate solution.If this is the case, a trip to the local dealer will be necessary to purchase another cylinder and to remove and reinstall the recoil spring.

With regard to any maintenance involving the spring, the familiar disclaimer – “Don’t try this at home folks” applies perfectly to this aspect of the job.

Below is an exploded view of a typical Komatsu excavator track adjuster or idler cushion as they are referred to in the parts manual.

 

Planning the repair

The purpose of preparing this blog on track adjusters was to provide some information for anyone who has a maintenance issue with one and wants to know more about the subject before they attempt to remove and repair.

As part of good maintenance planning, it is always the objective to have all the possibilities and scenarios of the job covered before taking the machine out of service.

One critical aspect is the importance of getting the correct parts required to cover all the possible repair situations. This can be a tough call as these parts aren’t cheap when you start thinking about having a new hydraulic cylinder there in case yours is found to be trashed when disassembled.

Also there may be additional time, travel and costs to get your assembly to the dealers who could be many miles from the job if you need to get them to remove, re install / replace the spring.

It is always diligent before you start to see what parts your local dealer has on the shelf in case you need to replace everything.

You may be surprised to learn that all they carry is the seals off the shelf.

Make sure you have all the heavy tools and slings required in case you find that the piston / shaft is seized. In the case of an excavator the bucket can do a lot of the heavy work and the pulling power force.

Options

Over the past couple of years the industry has seen a trend that has swung sharply away from remove and repair track adjusters, to remove and replace them with an aftermarket alternative.

The units themselves are as good or better than OEM quality, come with a manufacture defects warranty and are less than a third of the price of a complete rebuild using genuine parts but without the downtime. In fact the genuine springs are only fractionally higher priced than a complete aftermarket assembly.

With those economics combined with the concern about parts availability, extended downtime and the spring safety aspect, there isn’t any downside for the aftermarket replacement methodology. Hence we carry a large range of Komatsu track adjusters in stock for excavators (PC 45’s through to PC 800’s) and bulldozers (D 51’s to D 65’s).

One thing is clear though, the remove and replacement message is getting out there as we sell the heck out of em.

 

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Sours: https://specializedpartsandequipment.com/track-adjusters-and-why-we-sell-so-many/
Track tensioner seal change on mini excavator

Komatsu D31-1 D31-5 D31-16 D31-17 Bulldozer Tensioner Track Adjuster

Komatsu D31-1 D31-5 D31-16 D31-17 Bulldozer Tensioner Track Adjuster


>> Product Description >>

Komatsu D31-1 D31-5 D31-16 D31-17 Bulldozer Tensioner Track Adjuster

1.The track group with shoes is through quench-tempering processes to guarantee excellent mechanical properties, high strength and superior wear resistence to bending and breakage.
 

2.The surface hardness of the track group with shoes is HRC50-60 for reduced wear and longer life,

adding value to your products further to your business by maximizing durability of your products.
 

3. The track group with shoes have precise design, carefully manufactured for proper fix easy grousering

heavy loaded capacity up to 50tons without compromising proper functioning of the excavators reliable

quality, high cost performance,quality services.Our products,your best choice.                        


Komatsu D31-1 D31-5 D31-16 D31-17 Bulldozer Tensioner Track Adjuster

Komatsu D31-1 D31-5 D31-16 D31-17 Bulldozer Tensioner Track Adjuster


>> Related Products >>

QINDING Manufactures a wide range of Undercarriage Parts & Components including:
 
  • Track Chains (Standard, Heavy Duty & "PPR" Series)
  • Forged and Cast Drive Segments
  • Drive Sprocket
  • Idlers
  • Lower Rollers
  • Carrier Rollers
  • Track Tensioning Assemblies and Componets
  • Heavy Duty Forestry Roller and Idlers 
Komatsu D31-1 D31-5 D31-16 D31-17 Bulldozer Tensioner Track Adjuster

 
 THE MODELS FOR EXCAVATOR/BULLDOZER 
FOR HITACHI 
EX40-1EX40-2EX55EX60EX60-2EX60-3EX60-5EX70EX75
EX100EX110EX120EX120-1EX120-2EX120-3EX120-5EX130-1EX200-1
EX200-2EX200-3EX200-5EX220-3EX220-5EX270EX300EX300-1EX300-2
EX300-3EX300-5EX300AEX330EX370EX400-1EX400-2EX400-3EX400-5
EX450ZAX30ZAX55ZAX200ZAX200-2ZAX330ZAX450-1ZAX450-3ZAX450-5
FOR KOMATSU
PC20-7PC30PC30-3PC30-5PC30-6PC40-7PC45PC45-2PC55
PC120-6PC130PC130-7PC200PC200-1PC200-3PC200-5PC200-6PC200-7
PC200-8PC210-6PC220-1PC220-3PC220-6PC220-7PC220-8PC270-7PC202B
PC220LC-6PC220LC-8PC240PC300PC300-3PC300-5PC300-6PC300-7PC300-7K
PC300LC-7PC350-6/7PC400PC400-3PC400-5PC400-6PC400lc-7PC450-6PC450-7
PC600PC650PC750PC800PC1100PC1250PC2000  
D20 D31D50D60D61D61PXD65AD65PD64P-12
D80D85D155D275D355    
FOR CATERPILLAR
E200BE200-5E320DE215E320DLE324DE324DLE329DLE300L
E320SE320E320DLE240E120-1E311E312BE320BLE345
E324E140E300BE330CE120E70E322CE322BE325
E325LE330E450CAT225CAT312BCAT315CAT320CAT320CCAT320BL
CAT330CAT322CAT245CAT325CAT320LCAT973    
D3D3CD4D4DD4HD5MD5HD6D6D
D6MD6RD6TD7D7HD7RD8D8ND8R
D9RD9ND9GD10     
FOR KOBELCO
SK120-6SK120-5SK210-8SK210LC-8SK220SK220-1SK220-3SK220-5/6SK200 
SK200SK200 SK200-3SK200-6SK200-8SK200-5/6SK60SK290SK100
SK230SK250SK250-8SK260LC-8SK300SK300-2SK300-4SK310SK320
SK330-8SK330SK350LC-8SK235SRSK450SK480SK30-6  
FOR SUMITOMO
SH120 SH120-3SH200SH210-5SH200SH220-3SH220-5/7SH290-3SH350-5/7
SH220SH280SH290-7SH260SH300SH300-3SH300-5SH350SH60
FOR VOLVO
EC160CEC160DEC180BEC180CEC180DEC210EC210EC210BEC240B
EC290EC290BEC240EC55EC360EC360BEC380DEC460EC460B


>> Packing & Shipping >>
 

Komatsu D31-1 D31-5 D31-16 D31-17 Bulldozer Tensioner Track Adjuster

Packing
1.Pallet or wooden carton. 

2.Big parts nude packing in container 

3.Packing as customer demands. 

Delivery

1.International Courier, Such as DHL, TNT,UPS

or Fedex.

2.By air/By sea

   Products fully stocked, timely and efficient delivery.


Komatsu D31-1 D31-5 D31-16 D31-17 Bulldozer Tensioner Track Adjuster
 



>> Our Service >>

Pre-sale Service
Excavator spare parts in full-scale are available;
100% quality assurance, develop and manufacture follow original ones;
Quick response within 24 hours ;

Sale Service
Small order allowed;
Reasonable Price and timely delivery;
Original packing, neutral packing or customized packing;

After -Sales Service
Positive customer feedback from abroad market;
Excellent After-sales service. 

Komatsu D31-1 D31-5 D31-16 D31-17 Bulldozer Tensioner Track Adjuster


>> Company Information >>

We specialize in providing Excavator Bucket and Undercarriage Parts for Excavator and Bulldozer, the brand include CAT, Komatsu, Hitachi, Hyundai, KATO and other well-known brands.

Also specialize in providing Construction Machinery, Transmission, Axle, Engine Assembly and Parts Service. 

From the designing, choosing the raw material, the monitoring the production, final inspection to
packing, the company strictly controls of each production process to ensure the quality is in
accordance with the OEM requirements.

Our primary goal is customers' Satisfaction, with experience in both manufacturing and world-wide distribution. Our company is ready to provide our high quality product, professional support and service to our customers.

Komatsu D31-1 D31-5 D31-16 D31-17 Bulldozer Tensioner Track Adjuster


>> Contact Us >>
 


Komatsu D31-1 D31-5 D31-16 D31-17 Bulldozer Tensioner Track Adjuster

 
Vicky
----------------
Sales Manager

LINYI QINDING INTERNATION TRADE CO., LTD.
Add: No. 100, Lingong Road, Linyi City, Shandong Province, China
Tel:       86-539-853 6876
  
Sours: https://qinding888.en.made-in-china.com/product/XvVEbGtTgMrK/China-Komatsu-D31-1-D31-5-D31-16-D31-17-Bulldozer-Tensioner-Track-Adjuster.html

Track tensioner komatsu

KOMATSU PC200-8 track adjuster

 
1.KOMATSU PC200-8 track adjuster
2.Weight: 130kg/pc.
3.Packing: Wooden case/Pallet/Standard export packing.
4.Parts available for:
KOMATSU Excavators: PC130-7, PC200-7, PC200-8, PC220-7, PC220-8, PC240-7, PC240-8, PC270-7, PC270-8, PC300-7, PC300-8, PC360-7, PC400-7, PC400-8, PC450-7, PC450-8.
KOMATSU Bulldozers: D53A-17, D65A-8, D85A-18, D85A-21, D155A-2.
KOMATSU Wheel loaders: WA250-1, WA320-3, WA380-3, WA420-3, WA470-3, WA500-3.
CUMMINS Engines: 4BT, 6BT, 6CT, 6L, 4ISDE, 6ISDE, 4ISBE, 6ISBE, 6ISLE, NT855, N14, M11, L10, K19, K38.
SANY Excavators: SY65C, SY75C, SY135C, SY195C, SY215C, SY225C, SY365H, SY465H, etc.
SANY Trucks: SRT55, SRT95.
TEREX Trucks: TR50, TR60, TR100, etc.
WEICHAI ENGINE SERIES: WP12, WP10, WP6, WP4, WD615, 226series, WT615, WD618, R6160, X6160, etc.

LIUGONG: CLG8128H, CLG862, CLG862-LNG, CLG835, ZL50CN, 856IV, ZL50D, CLG842IV, CLG816A, CLG812C, CLG833, CLG856H, LG823D, CLG836-I, ZL50CNX, ZL50CN-LNG, CLG825C, CLG820C-I, CLG820C, CLG818C, CLG816C, CLG842III, CLG842, CLG877III, CLG855N, CLG899III, ZLG30G, ZLG40G, ZLG50G, CLG852, ZL50CX, ZL40B, ZL30E, ZL100C, CLG856, CLG899, CLG816, CLG836, CLG855, CLG856III, CLG888III, CLG888, ZL50C.

TNW Machinery and Equipment Co., Limited


UNDER CARRIAGE PARTS
No.English NamePart Number
1CARRIER ROLLER22U-30-00021
2FRONT IDLER ASS' Y20Y-30-00321
3SPROCKET 20Y-27-11582
4SPRING20Y-30-D1150
5CYLINDER20Y-30-22122
6SHAFT206-30-55122
7 TRACK ROLLER ASS' Y20Y-30-00016
8TRACK SHOE ASS' Y20Y-32-02051
9SHOE20Y-32-21110
10TRACK LINK ASS' Y20Y-32-00300
11 LINK, L. H 20Y-32-31120
12LINK, R. H20Y-32-31130
13TRACK FRAME20Y-30-31113
14TRACK FRAME20Y-30-31411
15GUARD20Y-30-31160
16RECOIL SPRING206-30-55171
17CYLINDER206-30-D1110
18SHAFT206-30-55122
19 TRACK ROLLER ASS' Y20Y-30-00016
20TRACK SHOE ASS' Y20Y-32-02250
21SHOE20Y-32-21110
22TRACK LINK ASS' Y20Y-32-00310
23 LINK, L. H 20Y-32-31120
24LINK, R. H20Y-32-31130
25TRACK FRAME20Y-30-35110
26TRACK FRAME20Y-30-35410
Komat'su PC200-8(LC), PC210-8(LC)
UNDER CARRIAGE PARTS
No.English NamePart Number
1CARRIER ROLLER20Y-30-00481
2FRONT IDLER ASS' Y20Y-30-00322
3SPROCKET 20Y-27-D3060
4GUARD20Y-30-31160
5COVER20Y-973-2220      20Y-973-2230
6SPRING20Y-30-42130
7CYLINDER20Y-30-42120
8SHAFT206-30-72140
9 TRACK ROLLER ASS' Y20Y-30-D1400
10TRACK SHOE ASS' Y20Y-32-02051
11SHOE20Y-32-21110
12TRACK LINK ASS' Y20Y-32-00300
13 LINK20Y-32-31120
14 LINK20Y-32-31130
15TRACK FRAME20Y-30-41110
16TRACK FRAME20Y-30-41210
   
17SPRING206-30-22130
18CYLINDER206-30-22120
19SHAFT206-30-72140
20 TRACK ROLLER ASS' Y20Y-30-D1400
21TRACK SHOE ASS' Y20Y-32-02250
22SHOE20Y-32-21110
23TRACK LINK ASS' Y20Y-32-00310
24 LINK20Y-32-31120
25 LINK20Y-32-31130
26TRACK FRAME20Y-30-45110
27TRACK FRAME20Y-30-45210
No.NamePart Number
1Undercarriage partsFront idler207-30-00161
2Front idler207-30-Z3210 
3Cylinder assy207-30-71441
4Track roller assy207-30-00510
5Carrier roller assy207-30-00430
6Carrier roller assy207-30-00450
7Track shoe assy207-32-03811
8Track frame 207-30-D0011
9Final drive motor assy708-8H-00320
10Sprocket207-27-61210
11Hub207-27-71311
12Bearing 207-27-71330
13Carrier207-27-71320
14Ring gear 207-27-71152 
15Gear 207-27-711521
16Front idler207-30-00161
17Front idler207-30-Z3210 
18Cylinder assy207-30-71441
19Track roller assy207-30-00510
20Carrier roller assy207-30-00430
21Carrier roller assy207-30-00450
22Track shoe assy207-32-03811
23Track frame 207-30-D0011
24Final drive motor assy708-8H-00320
25Sprocket207-27-61210
Komatsu PC400-7
No.SystemEnglish NamePiece Number
1Undercarriage PartsCarrier Roller208-30-00510
2Track Rooler208-30-00210
3Spring 208-30-74140
4Cylinder 208-30-71440
5Front Idler208-30-00201
6Sprocket208-27-61210
7Track Link ASSY208-32-03301
8Track Shoe Assy208-32-03301
9Track Link ASSY208-32-00510
10Komatsu PC400-6
11Undercarriage PartsCarrier Roller208-30-00340 207-30-00140
12Track Rooler208-30-00210
13Front Idler208-30-00200
14Sprocket208-27-61210
15Cylinder208-30-61440
16Track Shoe Assy208-32-03000
17Track Link ASSY208-32-00300
18Komatsu  PC400-8
19Carrier Roller208-30-00511
20Track Rooler 208-30-00021 208-30-00022
21Front Idler208-30-00202
22Sprocket208-27-61210
23Cylinder208-30-71440
24Track Shoe Assy208-32-03301 
25Track Link ASSY208-32-61123 208-32-61133
Related filters:
6136-51-5121Cartridge
600-311-8321Cartridge
600-182-2500Element assy
600-211-1340Oil filter
600-319-4540Pre filter
600-319-3841Fuel filter
600-185-6100Air filter
207-60-71182Hydraulic filter

Related Komatsu injector assy:
6207-11-3100
6754-11-3011
6745-11-3102
6156-11-3300
6745-12-3100
6742-01-3090

Komatsu arm cylinder kit, boom cylinder kit and bucket cylinder kit available:

Model

Part Name

Part Number

PC200-6

Boom Cylinder Kit

707-99-46600

PC200-6

Arm Cylinder Kit

707-99-57200

PC200-6

Bucket Cylinder Kit

707-98-45220

PC200-7

Boom Cylinder Kit

707-99-46130

PC200-7

Arm Cylinder Kit

707-99-57160

PC200-7

Bucket Cylinder Kit

707-99-45230

PC220-7

Boom Cylinder Kit

707-99-47790

PC220-7

Arm Cylinder Kit

707-99-58070

PC220-7

Bucket Cylinder Kit

707-99-47570

PC200-8

Boom Cylinder Kit

707-98-46280

PC200-8

Arm Cylinder Kit

707-98-48610

PC200-8

Bucket Cylinder Kit

707-98-39610

PC220-8

Boom Cylinder Kit

707-98-47730

PC220-8

Arm Cylinder Kit

707-98-58240

PC220-8

Bucket Cylinder Kit

707-98-47720

PC300-7

Boom Cylinder Kit

709-99-58080

PC300-7

Arm Cylinder Kit

709-99-67090

PC300-7

Bucket Cylinder Kit

709-99-58090

PC400-7

Boom Cylinder Kit

707-99-67070

PC400-7

Arm Cylinder Kit

707-99-69740

PC400-7

Bucket Cylinder Kit

707-99-72240


Komatsu Part No.
PC60-7201-43-72122
PC70-7201-43-72122
D1557834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC100-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC120-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC130-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC150-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC160-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC180-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC200-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC210-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC220-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC230-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC250-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC300-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC350-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC400-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC450-67834-40-2000    7834-40-2001 7834-40-2002 7834-40-2003  
PC130-77834-41-2001
PC200-77834-41-2000   7834-41-2001
PC220-77834-41-2001 7834-41-2002 7834-41-2003  
PC240-67834-40-2000
 PC340-77834-41-3000  7834-41-3001  7834-41-3002  7834-41-3003
PC350-77834-41-3000  7834-41-3001  7834-41-3002  7834-41-3003
PC300-77834-41-3000  7834-41-3001  7834-41-3002  7834-41-3003


KOMATSU Part
number
PC120-66732-81-8100
PC128US-16732-81-8100
PC150-66732-81-8100
PC130-66732-81-8100
PC100-66732-81-8100
PC130-76208-81-8100
PC128us-26208-81-8100
 PC138-76208-81-8100
PC200-66207-81-8331
PC200-76738-81-8090
PC228us-36738-81-8090
PC228us-86754-81-8090
PC228us-3E06754-81-8090
PC200-86754-81-8090
PC220-66735-81-8031
WA250-36735-81-8031
WA180-36735-81-8031
PC220-76738-81-8190
PC230-76738-81-8190
PC270-76738-81-8190
PC308USLC-36738-81-8190
PC220-86754-81-8190
PC240-86754-81-8190
PC300-66222-83-8171
PC340-66222-83-8171
PC350-66222-83-8171
PC380-66222-83-8171
PC300-76743-81-8040
 PC340-76743-81-8040
PC350-76743-81-8040
PC360-76743-81-8040
PC380-76743-81-8040
PC300-86745-81-8040
PC400-66152-82-8210
WA450-3 6152-82-8210
  HD255-56152-82-8210
PC400-76156-81-8170
PC400-86506-21-5020
PC450-76156-81-8170
PC450-86506-21-5020

Sours: http://tnwmachinery.com/products/212-KOMATSU-PC200-8-track-adjuster.html
Komatsu PC 400 track tensioner repair

Komatsu crawler excavator and dozer undercarriage parts track adjuster idler

Komatsu crawler Excavator and dozer undercarriage parts tension idler working principle

Butter injected into the cylinder through the butter nozzle with a butter gun, so that the piston extends outward to push the tension spring, and the idler guide wheel moves left to tighten the track chain with shoe assembly. The tightening spring has an appropriate travel. When the tension force is too large, the spring is compressed to act as a buffer; when the tension force is too large disappears, the compressed spring pushes the guide wheel in place, It can ensure the sliding along the crawler frame to change the wheelbase, ensure the disassembly and assembly of the crawler, reduce the impact of the walking process, and avoid derailment of the track chain.

We stock many different types of excavator track adjuster,dozer undercarriage parts.

     Xiamen Fortune Industrial Co., Limited
Product NameKomatsu excavator and dozer undercarriage spare parts track idler
Production StandardOEM
Material40SiMnTi
FinishSmooth
Painting ColorBlack or yellow
ProcessForging & casting
Surface HardnessHRC52-58, Depth:8mm-12mm
Quality GuaranteeOne Year
CertificationISO9001-9002
Delivery TimeWithin 10--20 days after advance payment receive
PackageFumigate seaworthy packing and Export Standard Package
Payment TermTT, L/C, Paypal, Western union,D/P
Business Scopeexcavator and dozer undercarriage parts, G.E.T, Hydraulic spare parts,underground engage tools, etc

excavator track adjuster

Our excavator and dozer track idler wheel advantage(Why Choose our undercarriage parts)
1.Quench-tempering processes to guarantee genuine mechanical properties
2. High hardness :HRC52-58,deepth:8mm-12mm 
3. Deep hardened wear surface 
4. High strength and superior wear resistence to bending and breakage
5.Strict Quality Control
6.Precise design and carefully manufactured
7.Certificated by ISO9001:2008
8.Produce as per client's samples,designs and drawings

Excavator and bulldozer undercarriage parts Track Idler Functions:
1.Guide the track in and out of the track rollers.
2.Intermittently support the machine's weight
3.Provide a way to control slack and tension

Excavator and dozer model list

MAKESAPPLICABLE MACHINES
CATERPILLARE70B  E110B  E120B  E307  E308  E311B  E180  E240
E200B E300  E320  E322  E330  E340  E345  E350 E450
CAT215  CAT225  CAT235
D3B  D3C  D4C  D4D  D4E  D5  D5H  D6C  D6D  D6H  D6R  D6T  D7G  D7H  D7R  D8N  D8R  D8T  D8L  D9N  D9R D10N  D10T  D11N
KOMATSUPC20  PC25  PC30  PC40  PC60  PC100  PC120  PC200
PC220  PC240  PC300  PC350  PC360  PC400  PC450  PC650  PC750  PC1000
D20  D21  D30 D31  D40  D41  D50  D53  D55  D60  D65  D85  D155  D275  D355  D375
HITACHIEX30  EX40  EX45  EX50  EX75  EX100 EX120  EX200 EX220 EX285  EX300 EX330  EX400 EX450  EX550  EX650
EX700 EX750  EX1100  EX1200
ZX50  ZX75  ZX200  ZX230  ZX240  ZX270  ZX300  ZX330
ZX450
JCBJS120  JS130  JS200  JS205  JS220  JS330  JS360LC   JS460
KOBELCOSK60  SK100  SK120  SK210  SK220  SK230  SK250  SK270
SK300  SK310  SK320  SK330  SK400  K904  K907  SK07  SK04N2  SK07N2  SK09N2
VOLVOEC140  EC210  EC240  EC290  EC360  EC460
HYUNDAIR60  R130  R200  R210  R220  R290  R320  R330  R450
DAEWOODH55  DH130  DH180  DH200  DH220  DH280  DH300
DOOSANDX140  DX180  DX220  DX225  DX235  DX255  DX300  DX340  DX380  DX420  DX480  DX520 
KATOHD250  HD400  HD450  HD700  HD770  HD820  HD1250
SUMITOMOSH100  SH120  SH200  SH220  SH250  SH260  SH280  SH300
SH340  SH430  SH580  LS1200  LS1600  LS2035  LS2050
LS2650  LS2800  LS3400  LS4300  LS5800
SAMSUNGSE130  SE210  SE280  SE350
FIAT-HITACHIFH120  FH200  FH220  FH300  FH330
LIEBHERRPR724  PR734  R901  R902  R934  R941  R942  R944  R945
R952  R954  R971  R974  R981  R982  R984 
CASE CX120  CX130  CX210  CX240  CX330  CX360
NEW HOLLANDE135  E145B  E165  E175  E215LC  E235  E245B  E265 E305LC E385LC  E485
 
BOBCATBOBCAT 325  BOBCAT 418  E26  E32  E35  E42

FAQ
1.What Xiamen Fortune Industrial Co.,Limited supply?
  We mainly supply crawler excavator and dozer undercarriage parts, such as Track roller, Carrier roller, Sprocket, Idler,Recoil spring assy, Track chain, Track shoe, Track bolt&nut,Track chain guard, Excavator bucket,Bucket teeth&adaptor, Bucket Link,Cutting Edge and End Bits, Hydraulic Cylinder, Bucket pin&bush,Slewing Bearing, Long reach boom and arm, etc.

2.How to confirm the spare parts will fit our crawler excavator and dozer?
  Please send us your excavator and dozer model name, part number, Berco number, or technical drawings and dimensions

3.How about the construction machinery excavator and dozer undercarriage parts Quality Control?
  We have an excellent QC system, the QC team will inspect every production process,quality and specification, to be sure best quality and correct size, untill packages finished and loaded into container.

4.What is payment term?
 TT, L/C, Paypal, Western Union, other payment term also can be negotiated.

Choose genuine quality carrier roller for construction machinery parts,

 Fortunepart will be your best undercarriage parts supplier in China. 

Sours: https://www.fortunepart.com/komatsu-crawler-excavator-and-dozer-undercarriage-parts-track-adjuster-idler_p30.html

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