Cub Cadet 600 series - Manual (Page 16)

500 and 600 SERIES 2-STAGE SNOW THROWER
12
11.12. Inside of each planetary gear set is a series of
planetary gears that rotate around a sun gear
and rotate inside of the ring gear on the left . See
Figure 11.12.
NOTE: The groves in the planetary gears are to
facilitate grease to the inner surface of the gear.
11.13. Although the planetary gears rarely have any
service issues a good working knowledge is
important.
• The hex shaft transfers torque from the rubber
drive disc to the sun gear splined on each end of
the hex shaft. See Figure 11.13.
• The sun gear drives the planetary gears to rotate
on the opposite direction of the sun gear.
• When unlatched (trigger squeezed) the ring gear
is then driven in the opposite direction of the
planetary gears/same direction as the sun
gear.The ring gear moves slower that the sun
gear, but with more Torque because there are
more teeth than the sun gear
• When the ring gear is allowed to spin the wheel
on that side of the snow thrower is deprived of
drive in the ring gear instead of transferring
torque to the axle.
• When the trigger is released and the ring gear is
latched (prevented from rotating) the planet
gears drive the carrier in the opposite direction
of the sun gear rotation, but at greater speed.
• The drive gear attached to the carrier transfers
power to the axle half.
11.14. engages the carrier that drive the axle
12. PLANETARY GEARS
12.1. To inspect or repair the planetary gears it is not
necessary to completely remove the drive
assembly from the snow thrower.
12.2. Stop engine and allow it to cool disconnect the
spark plug and ground it to the engine.
12.3. Confirm that the fuel level is low enough to pre-
vent spillage through the gas cap vent, or seal
the vent with a plastic bag between the cap and
the filler neck.
12.4. Carefully tip the snow thrower forward so it rests
on the auger housing.
12.5. Remove the wheel.
12.6. Remove the (4) screws that secure the shaft
retainer housing with a 3/8” socket. See Figure
12.6.
Figure 11.12
Ring Gear
Sun Gear
Planetary gears
Figure 11.13
Figure 12.6