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GB/T 7121.2-2008The strength testing method and accepting condition of the protective structures on wheeled agricultural and forestry tractors -- Part 2: Dynamic testing method (English PDF)

农林轮式拖拉机防护装置强度试验方法和验收条件第2部分：后置式动态试验方法

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Issued by

Standardization Administration of China

Level / Type

National · Recommended

Issue date

July 9, 2008

Implementation date

February 1, 2009

Scope

GB/T 7121.2-2008 is the English-translated version of 农林轮式拖拉机防护装置强度试验方法和验收条件第2部分：后置式动态试验方法.

GB/T 7121.2-2008 — GB/T 7121 provisions of this part of the dynamic test method and acceptance conditions for agricultural and forestry tractors guards. Objective To test the protective device is to make the possibility of normal operation when the tractor rollover accidents caused by the driver's injuries is minimized.

With analog back or side overturn a tractor (excluding floating drop) is applied to the safety cab or frame to load testing protective devices Strength. This test can check the strength of the guards and the tractor and the attachment brackets by the applied load on the loading device may affect the those strength tractor parts.

This section applies to a pneumatic tire having at least two axes of the tractor, a mass of 600kg ~ 6000kg, the rear wheels should be greater than the minimum tread 1150mm.

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Document preview — GB/T 7121.2-2008

National Standard of the People's Republic of China

ICS: 65.060.10
Classification: T 69
Replacing: GB 7121-1986

Issued by: Standardization Administration of China

What this standard covers1
Document data2

What this standard covers

This standard specifies test methods and acceptance criteria dynamic agricultural and forestry wheeled tractors guards. The purpose of the test is to guard the possibility that the normal operation of the tractor is caused by the roll-over accident to minimize driver injury. (Fall vacant except) is applied to the cab or safety shelves to test the strength of the load guard with analog back or side of the tractor overturned. This test can check the strength of the tractor guards and connecting bracket and the strength exerted by the load on the loading device may affect those tractor parts. This section applies to a pneumatic tire tractor having at least two axes. Its mass is 600kg ~ 6000kg, the rear wheels should be greater than the minimum track 1150mm.

Document data

International classification (ICS): 65.060.10.

Chinese classification (CCS): T69.

Estimated length of the Chinese original: 19,174 words.

Adopted international standard: Liquor 3463-2006, MOD.

Supersedes the earlier edition GB 7121-1986.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 13 pages — is available in the English PDF.

Referenced standards

Normative references

GB/T 7121 · ISO 148 · ISO 630 · GB/T 3098 · ISO 5353 · ISO 3154

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