Structural Maintenance 12-47
Reassembly
CAUTION: To prevent damage to the bearings, use bearing drivers (or other suitable tools) on the bearing races when
installing the bearings.
NOTE: Place a thin layer of grease (Mobil 28 or its equivalent) on the inner and outer bearing races before assembly.
1. Install the bearing on the small end (approximately 24 mm diameter) of the jackshaft.
2. Install the snap ring on the small end of the jackshaft.
3. Install the jackshaft and bearing in the jackshaft housing from the end opposite the lower mounting bolt tab.
4. Place the wave washers in lower mounting bolt tab end of the jackshaft housing.
5. Install the bearing on the large end (approximately 25 mm diameter) of the jackshaft and in lower mounting bolt tab end of
the jackshaft housing.
6. Install the snap ring on the large end of the jackshaft.
7. Install the key and pulley on the small end of the jackshaft. Make sure the pulley hub is up against the shoulder on the small
end of the jackshaft before tightening the pulley clamping bolts.
8. Install the key and pulley on the large end of the jackshaft. Position the pulley on the large end of the jackshaft so the distance
between the pulleys is 220 mm, and tighten the pulley clamping bolts.
Installation
1. Place the jackshaft assembly in position, and install and tighten the jackshaft mounting bolts. Install the lower mounting bolt
with the threaded end pointing towards the fan drive pulley (pulley on the small end of the jackshaft).
2. Install the grooved and plain idlers.
3. Install both tensioner assemblies.
4. Install the upper and lower polygroove belts.
Jackshaft Pulley Installation – SLe
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