MTZ 1220.1/1220.3
Section D. Construction and Operation
D9
A
dry-friction double-disk
spring-
loaded clutch coupling is mounted on the
engine flywheel 2. The clutch driving part
is a flywheel (2), a pressure plate (3) and
a center plate (28), which are fixed to the
flywheel pins (11) with tangential plates.
The clutch driven part consists of two dri-
ven plates (1) with torque vibration dam-
pers (9), which are installed on the power
shaft (6). Nine springs (25) provide for a
required compression force of friction sur-
faces of driving and driven clutch parts for
torque transfer from the engine to the
transmission.
The release levers (10) rest on the
forks (12) fixed on the back plate by means
of adjusting nuts (13), locked by the lock
plates (14).
Clutch control (MTZ-1221.2/1221.3)
The clutch is disengaged by stepping on
the clutch pedal (1) (Fig.D-11) which acts
through the linkage (1), (5), (8) onto the
retractor (16) (Fig. D-10) and the throw-
out bearing (15).
When the pedal (1) is released (Fig.D-11),
the clutch is engaged by the pressure
springs (25) (Fig.D-10). The spring (10) of
the servounit (Fig.D-11) makes the clutch
engagement easier and always presses
the lever (9) (Fig.D-11) against the cab
floor when the clutch is engaged.
Fig. D-11. Clutch control:
1 – pedal; 2 – servounit adjusting bolt; 3 – bracket; 4 – fastening bolt; 5 – lever; 6 – pin; 7 – fork; 8 – rod; 9 –
lever; 10 – servounit spring.
Summary of Contents for 1220.1
Page 1: ...MTZ 1220 1 1220 3 1220 1 0000010 OM OPERATOR S MANUAL 2010...
Page 161: ...MTZ 1220 1 1220 3 Section I Coupling of implements I15...
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