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1 Test standard：SAE J1462-94
2 Adjust torque test：
2.1 Adopt torque wrench, see picture.
2.2 Requirement Torque is less than 8.5N.m clockwise and it is 30~40N.m.counter-clockwise.
3 Proof-corrupt performance test：
3.1 Adopt salt fog testing table, mix polluted liquid per SAE J1462-94，see picture.
3.2 Requirement：proof-corrupt for 150 hours
4 Self-adjust test(automatic adjusting test) :
4.1 Adopt self-adjust testing table，see picture.
4.2 Requirement：Torque and frequency pass 200,000 times cycle tests per standard.
5 Endurance testing：
5.1 Adopt endurance test table，see picture
5.2 Requirement：Pass 30,000 times of high strength tests after passing 4.2.