precision240™, precision320™ nut system...important inspect spindle to ensure threads are clean...
TRANSCRIPT
IMPORTANTInspect spindle to ensure threads are clean and free of damage and distortion. Ensure bearings are lubricated prior to installation.
STEP 1 STEP 2 STEP 3
STEP 9 Inspect
STEP 4 STEP 5
STEP 10 End Play
STEP 6
STEP 7 STEP 8
Properly seated Interlock Washer
Button-head Cap Screw (2 ea)
Torque to 200 ft. lbs. (271 Nm) while rotating hub 3 full turns
4A: Back-off nut 1 full turn
Back-off nut
1/6 turn (60°)
Outer bearing
Spindle nut
Interlock washer
Tang
Spindle keyway slot
Fully engaged
Tang Spindle nut
Cap screw
Spindle nut
4B: Rotate hub 1 full turn
Torque to 50 ft. lbs. (68 Nm), then rotate hub 3 full turns. Repeat torque and rotations three more times. See note 1.
See note 2
60°
Questions?Call Hendrickson Trailer Technical Services Department
In United States and Canada at 866-RIDEAIR (743-3247) or e-mail [email protected]
Trailer Commercial Vehicle Systems2070 Industrial Place SECanton, OH 44707-2641 USA
866.RIDEAIR (743.3247)330.489.0045Fax 800.696.4416
Hendrickson Canada250 Chrysler Drive, Unit #3Brampton, ON Canada L6S 6B6905.789.1030Fax 905.789.1033
Hendrickson MexicanaCircuito El Marqués Sur #29Parque Industrial El MarquésPob. El Colorado, Municipio El Marqués, Querétaro, México C.P. 76246+52 (442) 296.3600Fax: +52 (442) 296.3601
PRECISION240™, PRECISION320™ NuT SySTEM T71005
Installation Procedures March 2016 Revision C
T71005 Rev C 03-16 ECN 25127 © 2016 Hendrickson USA, L.L.C. All Rights Reserved Information contained in this literature was accurate at the time of publication. Product changes may have been made after the copyright date that are not reflected.
FAILuRE TO FOLLOW THESE INSTRuCTIONS COuLD CAuSE WHEEL TO COME OFF AND CAuSE BODILy INJuRy. OVER-TIGHTENING NuT COuLD CAuSE BEARINGS TO RuN HOT AND BE DAMAGED.
WARNING
SPINDLE NuT SOCKET CAP SCREW HEXPRECISION240™ 3 13/16" 5/32"PRECISION320™ 4 7/8" 3/16"Wheel bearings should be set within 0.001" to 0.005" end play.Following this procedure will consistently produce a bearing setting of 0.001" to 0.003" end play.
Precision Spindle Nut System Components
SPINDLE NuT SCREW TORQuEft. lbs. Nm
PRECISION240™ 10±2 13.5±2PRECISION320™ 15±2 20±2
Rotate hub at least five revolutions. Use a dial indicator to verify end play is within 0.001" to 0.005".Adjust nut as necessary to achieve acceptable end play. If required, refer to applicable wheel-end maintenance procedures.
NOTES:
1. These steps must be performed four times to ensure bearings are fully seated.
2. If reusing existing screws, apply a small amount of Loctite® Threadlocker Blue to screw threads.
DO NOT ROTATE NuTIf washer and nut teeth do not align, flip interlock washer over, then install.