F2T007400 WSfH,60268-0

(1)-2 Roller Clutch

-the roller 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 engi ne speeds. Therefore, the armature drives the ring gear and is never driven by the engine.

[A) When power is transmitted tB) Idlingrotation whenclutchpinion Shaft speed exceeds that of clutch gear outer

(1)-3 Operation of Starter

M When Key Switch Is Turned to START Position

With the key switch (5) is 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-i n coil (6) rotates the armature (1) at low speed.

M WhenPinion 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) directl y into the fief d coiI (8) and armature coil (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

C042TO77

(1) Roller Clutch

(2) Armature

(3) Ring Gear

(4) Pinion Gear

M When Engine IsRunning

When the engine starts and drives the pinion gear (4) with the ring gear (3), the rol Ier clutch ( 1) disengages to prevent an armature (2) from being driven by the engine.

C042F078

(1) Pinion Gear

(2) Ring Gear

(3) Return Spring

(4) Plun9er

(5) Holding Coil

(2) GovvPug

(6) Key Switch

(7) Contact Plate

(8) Pull in Coil

(9) Battery

M When Releasing Key Switch

When releasing the key switch (6), it returns Jrom START to ON position and the starter circuit openes. Then, current flows from the battery (9) to the pull-in coil (8) and the holding coil (5) through the contact plate (7). Since the magnetic force is generated in each coil in the opposite direction, the magnetic field collapses and the plunger (4) is returned to its former position by a return spring (3). This opens the contacts on the contact plate (7) and separates pinion gear (1) from ring gear (2), whereupon the pinion gear stops rotating.

(1) Insulating Powder

(2) Heat Coil

(3) Housing

(4) Metal Tube

GI ow plugs are used for each sub-co mb usti on chamber of the cylinder head to make starting easier. The glow plugs are of the quick-heating type, which makes starting easier with short preheating time.