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CHAPTER 5 IMPORTANT ADJUSTMENTS
5.1 Important adjustment Data of Engine
The main adjustment data of engine is shown in Engine Operation Manual.
5.2 The Components of Clutch
(1) Its Structure
For the structure of double-action clutch, refers to Fig.5-1, and for its components see Table 5-1,
where the code numbers indicated with asterisk refer to components specially designed for double-
action clutch.
A double-action clutch incorporates two clutches. The master clutch at the rear consists of clutch
shaft,clutch driven disk assembly, clutch pressure plate and the rear Belleville spring. The PTO
clutch is located in the front, and consists of clutch shaft, clutch pressure plate, clutch driven disk
and the front Bellevile spring. The clutch cover and the fixed clutch pressure plate provide
positioning and supporting for the rear clutch. Power is delivered from the engine through the master
engagement sleeve and PTO engagement sleeve respectively to the input shaft of the transmission
and PTO, allowing for separated power transmission for tractor running and power takeoff.
(2) Adjustment, Control and Working Principle
A.When the clutch assemble is secured to the flywheel by six bolts M 10X70, the following
adjustments should be made.
a. Adjust the spherical nut on the bolt until a distance of 66 mm is reached between the working
plane of release levers and the side surface of flywheel and the differences in working plane of
the three release levers should not exceed 0.15mm. Lock the spherical nut with thin nut after
adjustment.
B. The free travel and working travel should be adjusted after installation:
a. Adjust the relative position of adjusting fort in the push-rod of clutch until a free travel of
A=4~7mm is reached at the clutch pedal.
b. Adjust the height of bolt M 10X45 until a working travel of B=25~36mm is reached at the
clutch pedal.
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