- \n
- the yoke<\/strong>, which connects the idler wheel to the other parts;\n<\/li>\n
- the recoil spring<\/strong>, which serves as a shock absorber, protecting the undercarriage from impacts and overload and adjusting to uneven soil;\n<\/li>\n
- the cylinder<\/strong>, which adjusts the track and tensions the chain. It includes a grease cylinder. Moreover, the track cylinder can be installed outside or inside the spring, with its pros and cons.\n
<\/span><\/li>\n<\/ul>\n
Track adjuster functions<\/h3>\n
The track adjuster is designed to carry out a set of essential functions inside an earthmoving machine. In detail:<\/p>\n
- \n
- It exerts a bending action<\/strong> and guides the track via sliding supports and the idler wheel;\n<\/li>\n
- It pre-tensions and adjusts the chain<\/strong>;\n<\/li>\n
- It protects the undercarriage<\/strong> from external overload;\n<\/li>\n
- It ensures safe<\/strong> shock absorption.<\/span><\/li>\n<\/ul>\n
<\/p>\n
How many types of track adjusters are there?<\/h3>\n
There\u2019re several, even though they all serve the same purpose. Depending on the components\u2019 layout and the type of tracked vehicle, we can divide track adjusters into two groups<\/strong>. Let\u2019s look at them and see how they differ from each other.<\/p>\n
<\/p>\n
1. Front track adjuster with separate track cylinder <\/span> <\/strong><\/p>\n
<\/p>\n
<\/p>\n
<\/p>\n
![\"Gruppo](\"https:\/\/itrworld.com\/usco\/wp-content\/uploads\/sites\/7\/2026\/01\/Gruppo-tendicingolo-anteriore-con-tenditore-separato.jpg\" "\\"\\"")
<\/p>\n<\/p>\n
<\/p>\n
2. Front track adjuster with built-in track cylinder
<\/strong><\/span><\/span><\/span><\/strong><\/p>\n<\/p>\n
![\"Gruppo](\"https:\/\/www.itrworld.com\/assets\/Uploads\/_resampled\/ResizedImageWzYwMCwyNzFd\/Gruppo-tendicingolo-anteriore-con-tenditore-integrato.jpg\" "\\"\\"")
<\/p>\n<\/p>\n
The recoil spring and the hydraulic track cylinder <\/h3>\n
The recoil spring<\/strong> and the cylinder<\/strong> are two essential parts of the track adjuster. Both parts serve a specific purpose.<\/p>\n
The spring <\/strong>absorbs<\/strong> the shocks<\/strong> applied to the front idler when the machine meets an obstacle. Moreover, it adjusts the chain\u2019s tension<\/strong> by injecting grease inside the cylinder through a control valve that moves the recoil spring forwards through hydraulic pressure.<\/p>\n
On the contrary, the recoil spring moves backwards by making grease leak from the valve, thus reducing the chain\u2019s tension. The recoil spring is loaded when the machine moves backwards.<\/p>\n
The cylinder<\/strong> holds the spring<\/strong> with the cylinder body (sleeve). This way, it keeps the spring constantly preloaded<\/strong>. This part is highly resistant<\/strong> because it receives a heavier load when the spring is compressed than when it\u2019s preloaded.<\/p>\n
Generally, the recoil spring and the cylinder can include the following components:<\/p>\n
- \n
- \n
Spring<\/p>\n<\/li>\n
- \n
Cylinder<\/p>\n<\/li>\n
- \n
Piston<\/p>\n<\/li>\n
- \n
Tie-rod<\/p>\n<\/li>\n
- \n
Flange<\/p>\n<\/li>\n
- \n
Seal<\/p>\n<\/li>\n
- \n
Oil scraper<\/p>\n<\/li>\n
- \n
Nut<\/p>\n<\/li>\n<\/ol>\n
This is what they usually look like:<\/p>\n
Recoil spring<\/strong><\/p>\n
<\/p>\n
<\/p>\n
![\"Gruppo](\"https:\/\/www.itrworld.com\/assets\/Uploads\/Gruppo-molla-ITR.jpg\" "\\"\\"")
<\/p>\n<\/p>\n
<\/p>\n
Hydraulic track cylinder<\/strong><\/p>\n
<\/strong><\/p>\n
<\/p>\n
![\"Gruppo](\"https:\/\/www.itrworld.com\/assets\/Uploads\/_resampled\/ResizedImageWzYwMCwzNDJd\/Gruppo-tenditore-idraulico-ITR.jpg\" "\\"\\"")
<\/span><\/p>\n<\/p>\n
Recoil spring with built-in track cylinder<\/strong><\/p>\n
<\/strong><\/p>\n
<\/span><\/strong><\/p>\n
<\/p>\n
![\"Gruppo](\"https:\/\/www.itrworld.com\/assets\/Uploads\/_resampled\/ResizedImageWzYwMCwzMjBd\/Gruppo-molla-con-tenditore-integrato-ITR.jpg\" "\\"\\"")
<\/p>\n<\/p>\n
<\/p>\n
The next article will dig deeper into the recoil spring. <\/p>\n
Want to know more about ITR\u2019s track adjusters?<\/span><\/h3>\n
Contact us for further information!<\/span><\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Track adjusters maintain the chain\u2019s tension in tracked vehicles of all sizes through a combination of actions.<\/p>\n","protected":false},"author":1,"featured_media":8728,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[285,343],"tags":[],"class_list":["post-11800","post","type-post","status-publish","format-standard","has-post-thumbnail","category-magazine","category-repair-parts"],"acf":[],"_links":{"self":[{"href":"https:\/\/itrworld.com\/usco\/wp-json\/wp\/v2\/posts\/11800","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/itrworld.com\/usco\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/itrworld.com\/usco\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/itrworld.com\/usco\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/itrworld.com\/usco\/wp-json\/wp\/v2\/comments?post=11800"}],"version-history":[{"count":1,"href":"https:\/\/itrworld.com\/usco\/wp-json\/wp\/v2\/posts\/11800\/revisions"}],"predecessor-version":[{"id":11801,"href":"https:\/\/itrworld.com\/usco\/wp-json\/wp\/v2\/posts\/11800\/revisions\/11801"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/itrworld.com\/usco\/wp-json\/wp\/v2\/media\/8728"}],"wp:attachment":[{"href":"https:\/\/itrworld.com\/usco\/wp-json\/wp\/v2\/media?parent=11800"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/itrworld.com\/usco\/wp-json\/wp\/v2\/categories?post=11800"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/itrworld.com\/usco\/wp-json\/wp\/v2\/tags?post=11800"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
- It pre-tensions and adjusts the chain<\/strong>;\n<\/li>\n
- the recoil spring<\/strong>, which serves as a shock absorber, protecting the undercarriage from impacts and overload and adjusting to uneven soil;\n<\/li>\n