Kubota Z400-B Handbuch Seite 61

2.
Overrunning Clutch
The overrunning clutch is so constructed that the power
transmission relationship is automatically severed when the
clutch pinion shaft (7) speed exceeds the clutch gear outer
(2) speed at increased engine speeds. Therefore, the arma­
ture drives the ring gear and is never driven by the engine.
[A] When power is transmitted
[B] Idling rotation with clutch pinion shaft speed
exceed that of clutch gear outer
(1) LockedPosition
(2) Clutch Gear Outer
IBJ
(3) Roller
(4) Roller Spring
(5) Spline Tube Inner
(6) Pinion Gear
(7) Clutch Pinion Shaft
3. Operation of Starter
• When key switch is turned to "START" position
With the key switch (5) in the "START" position, current
flows from the battery (7) to the holding coil (4), which
moves the plunger (3) electromagnetically and pushes out the
pinion gear (2). At the same time, current flowing through
the pUll-in coi I (6) rotates the armature (1) at low speed.
(1)
Armature
(2)
Pinion Gear
(3) Plunger
(4) Holding Coil
(5)
Key Switch
(6) Pull-in Coil
(7) Battery
• When pinion gear meshes with ring gear
When the pinion gear (4) meshes with the ring gear (3) on
the flywheel, current flows from the battery (10) directly
into the field coi I (8) and armature coi I (1), but not through
the pull-in coil (9). This rotates the armature (2) at a high
speed, which in turn drives the ring gear through the pinion
gear at 200 to 300 rpm.
(1 ) Armature Coil
(2)
Armature
(3) Ring Gear
(4) Pinion Gear
(5) Plunger
C012F076
(6) Holding Coil
(7) Key Switch
(8)
Field Coil
(9) Pull-in Coil
(10) Battery
CU12F095
M·51