Dong Feng ZB 65, Operator'S Manual

Page: 47 / 55

Factory Direct Tractors
Mechanical Adjustment
5. Mechanical Adjustment
5-1
Fig. 5-2-1 Manual double-acting clutch
5.1 Engine
Please refer to the engine operation manual for
adjustment and maintenance.
5.2 Clutch
5.2.1 Dual stage clutch
Under normal operation the clutch will wear and
need to be checked and adjusted at regular service
intervals as required. Avoid excessive clutch slip.
If the clutch is not immediately adjusted to stop
abnormal slipping, premature clutch plate wear will
occur with possible damage to the clutch assembly
through over heating, or metal on metal wear.
5.2.2 Clutch assembly
Clutch assembly and adjustment should be carried
out by a qualified technician.
The dual stage clutch structure is shown in Fig.
5-2-1.
Two Stage Clutch Adjustment:
1. Flywheel
2.Main clutch driven plate assembly
3. Main clutch pressure plate
4. Dish spring
5. Fixed clutch pressure plate
6.Sub-clutch driven plate assembly
7. Sub pull rod
8. Clutch cover
9.Main release fingers
10.Release bearing
11. Clutch pedal
12.Adjusting nut
13.Adjustable pull rod
14.Return spring
15.Main pull rod
16.PTO clutch pressure plate
1.
Remove the clutch inspection cover on the side
of the bell housing.
2.
First adjust the main pull rod (15) so that the
threaded end of the pull rod protrudes 1mm
past its 16mm lock nuts. There are two other
Main release fingers (9) to be adjusted. Use the
throw out bearing as a guide by measuring the
gap between the first adjusted finger (9) and the
throw out bearing (10) to adjust the other two
fingers so they are within 0.25mm on the same
vertical plane. The three release fingers should
contact the throw out bearing at the same time
when the clutch pedal is pushed.
3.
Adjust the three Sub pull rods (7) using their two
lock nuts so that the gap between the washer
and main clutch pressure plate (3) is 0.5mm.
You need to rotate the clutch assembly to gain
access to the three adjustment points.
4.
Finally adjust the pedal free play at the
adjustable pull rod (13) when the clutch pedal is
at rest so that the clearance between the main
release fingers (9) and release bearing (10) is
3mm.
5. Test the clutch operation.