UNDERDRIVE Planetary Gear Assembly: Reassembly

1. Press new bearing on underdrive planetary gear. Install snap ring in counterdriven gear. Press bearing races into counterdriven gear until snap ring is contacted. Install space and counterdriven gear. Press new bearing onto front of underdrive planetary gear. See Fig 2 .
2. Press drive pinion gear onto underdrive planetary gear. Press on drive pinion gear inner bearing. Install new lock nut. Mount gear assembly in holding fixture. Tighten lock nut until bearings are seated. Using pull gauge, measure starting turning torque of bearing race. See Fig 3 . Continue to tighten lock nut until starting turning torque is 5-12 INCH lbs. (.54-1.32 N.m). Stake lock nut. Install snap ring and underdrive planetary ring gear.

Fig 1: Removing Underdrive Planetary Ring Gear

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Fig 2: Exploded View Of Underdrive Planetary Gear Assembly

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Fig 3: Measuring Counter Driven Gear Starting Torque

Courtesy of DAEWOO MOTOR AMERICA, INC.