wsm B2420 - Page 245

STEERING
B2420, WSM
7-S16
Clearance between Valve Housing and Sleeve
1. Measure the valve housing I.D. with a cylinder gauge and the
sleeve O.D. with an outside micrometer, and calculate this
clearance.
2. If the clearance exceeds the allowable limit, replace the valve
housing or sleeve assembly.
IMPORTANT
• Check to see if the slipper seals of sleeve do not have
excessive wear.
9Y1210436STS0024US0
Axial Play of Rack (Piston) Assembly
1. Secure the rack (piston) assembly in a vise.
2. Set dial indicator with its finger on the worm shaft of the rack
(piston) assembly.
3. Move the worm shaft axially and measure the play.
4. If the play exceeds the allowable limit, replace the rack (piston)
assembly.
9Y1210436STS0025US0
Backlash between Sector Gear Shaft and Rack (Piston)
1. Attach the pitman arm having no play.
2. Set a dial indicator with its finger on the pitman arm.
3. Move the pitman arm lightly, and measure the deflection.
4. If the measurement is not within the factory specification, adjust
the backlash with the adjusting screw.
9Y1210436STS0026US0
Clearance between
valve housing and sleeve
Factory specification
0.17 to 0.28 mm
0.0067 to 0.011 in.
Allowable limit
0.40 mm
0.016 in.
Axial play of rack (piston)
assembly
Factory specification
0 to 0.02 mm
0 to 0.0007 in.
Allowable limit
0.04 mm
0.002 in.
Backlash between sector
gear shaft and rack
(piston)
Factory specification
Less than
0.30 mm
0.012 in.
KiSC issued 06, 2012 A