Structural Maintenance (Rev. 04/03)
95
JACKSHAFT ASSEMBLY
Model 30 units are not equipped with an electric motor. The
electric motor is replaced by a jackshaft. The jackshaft
assembly oil level plug should be removed, and the oil level
checked every 1000 operating hours. Check the jackshaft
during the pre-trip inspection for oil leakage. If there is any
sign of leakage, remove the jackshaft assembly.
Disassembly
1. Remove jackshaft assembly from the unit and remove
the pulleys.
2. Remove the level and fill plugs and drain oil reservoir.
3. Remove the end cap from fill plug end of the jackshaft
assembly.
NOTE: There are shims between the end cap and the
housing. These should be saved for possible reuse
during reassembly.
4. Remove the shaft and bearings.
5. Remove the end cap from level plug end of assembly.
6. Use a punch and hammer to remove the seals and bear-
ing cups from end caps.
Jackshaft Assembly
7. Use a bearing splitter or similar tool to remove the
bearing cones from the shaft.
8. Clean all parts in clean solvent and then examine the
bearing cups and cones for damage.
Reassembly
1. Coat the outer edges of the oil seals with a gasket seal-
ant.
2. Using a suitable tool, install the seals in the end caps.
Fill the space between the seal lips with grease.
3. Install oil level plug end of the shaft. Torque the bolts to
10 ft-lb (13.6 N•m).
Jackshaft Assembly
4. Place the shaft into housing and install the remaining
end cap, O-ring and shims on housing. Torque the bolts
to 10 ft-lb (13.6 N•m).
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