John Deere約翰迪爾強(qiáng)鹿柴油發(fā)動(dòng)機(jī)氣門彈簧的檢查和測(cè)量

1. Inspect valve springs for alignment, wear, and damage.

2. Using D01168AA Spring Compression Tester, checkvalve spring tension. Compressed height must bewithin specification given below.

Valve Springs—Specification

Spring Free Length 0 N (0lb-force)1—Height ....................................................... 54.0 mm (2.125 in.)

Spring Compressed 240—280 N(54—62 lb-force)—Height............................................. 46.0 mm (1.81 in.)

Spring Compressed 590—680 N(133—153 lb-force)—Height......................................... 34.5 mm (1.36 in.)