Branson 4015r - Overview; Sectional View Of Clutch Assembly

CHAPTER 3 CLUTCH
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3015R(h)/3515R(h)/4015R(h)/F36R(h)/F42R(h) TRACTOR
42hW-201601
1. OVERVIEW
1.1 SECTIONAL VIEW OF CLUTCH ASSEMBLY
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A
B
F42W301A
(1) Clutch disc assembly
(2) PTO sleeve
(3) Flywheel
(4) Clutch disc cover
(5) Clutch housing
(6) Release bearing
(7) Bearing sleeve
(A) Main shaft (outer): hollow shaft
(B) Main PTO shaft (inner): solid shaft
As shown in the gure above, the hollow shaft A (main shaft (outer)) is xed to the boss of the clutch disc
assembly with splines while the solid shaft B (main PTO shaft (inner)) is xed to the PTO sleeve (2) of the
ywheel with splines.
When the engine is running, the rotating force is delivered to each shaft. When the main clutch is disengaged
in this state, the hollow shaft A does not rotate as it is xed to the clutch disc assembly. However, as the solid
shaft B is connected to the ywheel with the PTO sleeve, it rotates continuously. As a result, the PTO shaft
connected to the solid shaft B is driven independently regardless of the driving shift condition.
The clutch is to deliver or cut off power from the engine to the transmission. When the clutch disc is pressed
against the ywheel, the rotating force from the engine is delivered into the transmission through the shaft
which is connected to the spline boss of the clutch.
However, when the clutch pedal is depressed, its clutch rod pulls the release shaft which then pushes the
release bearing in the clutch housing to press the clutch cover spring. As a result, the clutch disc is separated
from the ywheel, so rotating force from the engine is no longer transmitted to the transmission.