JLG 530LRT, Service And Maintenance Manual

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SECTION 3 - CHASSIS, PLATFORM & SCISSOR ARMS
3121781 3-37
Steering Assembly
STEER CYLINDER REMOVAL
1. Disable machine operation and block all wheels. Dis-
connect, cap and label all hydraulic lines on steer cyl-
inder (1).
2. Remove the screws and pin keeper (4), and pin (3)
connecting cylinder rod to tie rod (2). Slide the tie
rod out of the cylinder rod, capture the thrust washer
(5) on bottom of tie rod.
3. Support steer cylinder. Remove 4 bolts (6) and wash-
ers (7) connecting cylinder to axle. Carefully remove
cylinder.
SPINDLE REMOVAL
4. Remove wheel and drive assembly prior to spindle
(8) removal.
5. Disconnect tie rod (2) from spindle by removing
screw and pin keeper (4), and pin (3).
6. Support spindle. Remove spindle from axle by
removing flange bolts (11), from nuts (13). Remove
the 2 tapered king pins (12), from the tapered king-
pin bores on the axle, and thrust washer (14) from
lower axle. Remove spindle from axle.
ASSEMBLY
1. When assembling steer cylinder and spindle, follow
Removal Steps in reverse.
NOTE: Apply Loctite® #242 to bolts (4, 6, 11).
Torque flange bolt (11) to 108 ft. lb. (147 Nm).
Inspect spindle bushing seals (9), replace if damaged.
Ensure large thrust washer (14) is installed between
spindle (8) and bottom of axle.
Be certain spindle nut (13) is aligned and seated in the
machined groove on the axle before tightening.
1
1. Steer Cylinder Assembly
2. Tie-Rod Link
3. Pivot Pins
4. Pin Keeper and Screw
5. Thrust Washer 6. Cyl. Attach Screws
7. Washer
8. Spindle Assembly
9. Bushing Seal
10. Spindle Bushing
11. Hex Flange Bolt
12. Tapered Kingpin Pin
13. Hex Nut
14. Thrust Washer
Figure 3-30. Steering Assembly