JLG E300 Service Manual - Manual (Page 69)

SECTION 3 - CHASSIS & TURNTABLE
3120772 – JLG Lift – 3-35
3. Lower the drive link into the shaft making sure that
the timing mark end of the drive link faces up and
the timing mark on the end of the drive link is
aligned with one of the through holes in the shaft.
4. When the splines contact each other, slowly rotate
the drive link counterclockwise until the drive link
splines engage with those on the shaft.
5. Turn the housing over so the pilot of the housing
faces down and secure the housing in a vise.
6. Without disturbing the seal carrier assembly or drive
link, carefully lower the shaft assembly into the
housing.
7. To seat the seal carrier against the wire ring, gently
tap the drive link down until the end of the shaft is
nearly flush with the rear surface of the housing.
8. Place a body seal in the groove in the rear surface of
the housing.
9. Using alignment marks as a guide, place the wear
plate on the housing making sure the notch in the
wear plate is aligned with the port side of the hous-
ing as shown in Figure 3-24., Notch Alignment.
10. Place a body seal in the grove in the face of the
rotor.
11. Lower the rotor onto the drive link making sure the
timing mark on the drive link is aligned with a peak
on the rotor as shown in Figure 3-25., Timing Mark.
12. Once splines are engaged, rotate rotor so the notch
on the rotor is aligned with the notch on the wear
plate and the ports on the housing. Refer to Figure
3-24., Notch Alignment.
13. Insert the drive link pin into the end of the drive link
making sure the concave end faces up.
14. Place the remaining body seal in the groove in the
end cover.
15. Using alignment marks as a guide, place the end
cover onto the motor making sure the end of the
drive link pin is in the hole in the center of the end
cover.
16. Insert the four bolts and torque to an initial value of
10 ft.lbs. (13.5 Nm). Using a criss-cross pattern,
apply a final torque of 50 ft.lbs. (68 Nm).
17. Remove the motor from the vise and place on a
clean work surface with the shaft facing up. Making
sure the lip seal faces up, place the dust seal over
the shaft. Using a seal and hammer, carefully drive
the dust seal into place.
Installation
1. Connect the two hydraulic lines to the motor as
tagged during Removal.
2. Position the motor on the swing drive and secure in
place with the retaining bolts. Apply Loctite to the
bolts and torque to 120 ft.lbs. (163 Nm).
NOTCH IN ROTOR
NOTCH IN STATOR
HOUSING
PORTS
Figure 3-24. Notch Alignment
Figure 3-25. Timing Mark
PEAK ON ROTOR TIMING MARK