JLG 601S, Service And Maintenance Manual

Page: 94 / 244

SECTION 3 - CHASSIS & TURNTABLE
3-54 – JLG Lift – 3120746
BE SURE THE EXCLUSION SEAL AND PRESSURE SEAL ARE
UNDAMAGED AND PROPERLY SEATED.
5. Clamp the motor in the vise so the output shaft is
vertical and down. Clamp on the mounting flange.
6. Pour clean hydraulic fluid into the motor to provide
start - up lubrication.
7. Lubricate and install one of the three largest diame-
ter seals in the groove in the motor housing.
8. Install the drive.
NOTE: If the splined ends of the Drive are different lengths,
install the longer end into the shaft.
Motor Timing
1. Align shaft timing dot with any bolt hole. Bolt hole
will be used for timing reference.
2. Install spacer plate, and note the position of the
threaded hole in housing aligned with the timing dot
on shaft.
BE SURE THE SLOTS IN THE SPACER PLATE PROVIDE PAS-
SAGE FOR HYDRAULIC FLUID AS WELL AS THE CAP SCREWS.
IF THE SPACER PLATE IS FLIPPED THE MOTOR WILL NOT
OPERATE.
3. Lightly stretch, lubricate and install the second of the
three larger diameter seals in the groove in the
Geroler.
Standard Timing: Align any star point with threaded
hole noted for the location of the timing dot.
Reverse Timing: Align any star valley with the
threaded hole noted for the location of the timing
dot.
4. Rotate the geroler to align the screw holes and
install driver spacer if applicable.
5. Lubricate and install the last one of the three larger
diameter seals in the groove in the end cap.
6. Install the end cap and seven cap screws.
7. Tighten the cap screws, in a criss - cross pattern, to
300 in lbs. (34 Nm).
8. The level down relief valve is located right next to the
check port. Turn clockwise to increase and counter-
clockwise to decrease.