Weichai America Corp.
64
6.2.2
Steps to disassemble signal generator
1)
Remove cover plate on the gear housing.
2)
Remove nut #9, take gear out.
3)
Remove nut #1 and take signal generator down.
4)
Remove bolt #6 and take camshaft sensor down.
6.2.3
Steps to assemble signal generator
1)
Install camshaft sensor on the signal generator, tighten the bolt.
2)
Install stud #3 on the gear housing.
3)
Make sure the O-ring is intact, otherwise replace it.
4)
Install signal generator on the gear housing, tighten nut #1.
5)
Install gear #7, tighten bolt #9.
6.2.4
Steps to adjust signal generator
1)
Rotate crankshaft to “OT”, make sure that the first cylinder piston is in its compression stroke.
2)
Remove bolt #10 and take the cover plate down;
3)
Remove nut #3 and washer #14;
4)
Adjust toothed disc #15, align the “TDC” line with the center of camshaft sensor;
5)
Install washer #14 and tighten nut #13 with the torque of
（
90
±
4
）
N.m;
6)
Install cover plate #12 and tighten bolts.
6.2.5
Inspection and maintenance of signal generator
1)
Check the signal generator shaft threads for damage.
2)
Check that the locknuts of the signal generator fluted disc are tightened and the ignition angle of
the signal generator is correct.
3)
Check the head of cam sensor for damage and foreign matter.
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