JLG H340AJ Service And Maintenance Manual page 68

3. Press a new dirt and water seal (20) into the housing (18)
outer bearing counterbore. The dirt and water seal (20)
must be pressed in until its' flange is flush against the
housing.
4. Place housing (18) assembly into a soft jawed vise with
the coupling shaft bore down, clamping against the
mounting flange.
5. Assemble a new backup ring (17), new backup washer
(25) and new seal (16) with the seal lip facing toward the
inside of the motor, into their respective counterbores in
housing (18).
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SECTION 3 - CHASSIS & TURNTABLE
6. Assemble thrust washer (14) then thrust bearing (15)
that was removed from the motor.
NOTE: The motor requires one thrust washer (14) with thrust
bearing (15). The coupling shaft will be seated directly
against the thrust bearing.
7. Apply masking tape around splines or keyway on shaft
(12) to prevent damage to seal.
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