Servicing - Kubota L3200 Workshop Manual

L3200, WSM

[4] SERVICING

Backlash between Sector Gear and Ball Nut
1. Set a dial indicator with its finger on the pitman arm.
2. Move the pitman arm lightly, and measure the pitman arm
deflection.
3. If the measurement is not within the factory specifications, adjust
the backlash with the adjusting screw.
Backlash between
Factory spec.
sector gear and ball nut
Clearance between Valve Housing and Sleeve
1. Measure the sleeve O.D. with an outside micrometer.
2. Measure the valve housing I.D. with a caliper gauge.
3. If the clearance exceeds the allowable limit, replace the steering
gear box assembly.
Factory spec.
Clearance between
valve housing and spool
Allowable limit
Clearance between Gear Box and Ball Nut
1. Measure the gear box cylinder I.D. with a cylinder gauge.
2. Measure the ball nut O.D. with an outside micrometer.
3. If the clearance exceeds the factory specifications, replace the
steering gear box assembly.
Factory spec.
Clearance between gear
box and ball nut
Allowable limit
Axial Play of Ball Nut Assembly
1. Set a dial indicator with its finger on the worm shaft of the ball nut
assembly.
2. Move the worm shaft axially and measure the play.
3. If the play exceeds the allowable limit, replace the steering gear
box assembly.
NOTE
• Check ball nut assembly for smooth rotation by holding the
ball nut horizontally, and slowly rotating the worm shaft. If
rotation is not smooth, replace the steering gear box
assembly.
Factory spec.
Axial play of ball nut
assembly
Allowable limit
7-S9
STEERING
0.3 mm
0.012 in.
W10166630
0.17 to 0.28 mm
0.0067 to 0.0110 in.
0.4 mm
0.0157 in.
W10285540
0.035 to 0.08 mm
0.0013 to 0.0031 in.
0.15 mm
0.0059 in.
W10286900
0.02 mm
0.0008 in.
0.04 mm
0.0015 in.
W10288320
KiSC issued 12, 2006 A