If you would like more information on our STEMCO Zip-Torq unitized spindle nut, visit our product page. Read bearing end play as total indicator movement. While continuing to push, stop oscillating at same position as it was before in the pull direction and read the indicator. Push the wheel assembly inward while oscillating. While continuing to pull, stop oscillating and read the indicator. Pull the wheel end assembly outward while oscillating the wheel approximately 5°(between bolts holes on the hub). Grasp the wheel/hub assembly at the 3 o’clock and 9 o’clock positions. The dial indicator should be attached to the hub or brake drum with its magnetic base.Īdjust the dial indicator so that its plunger is against the end of the spindle with its line of action approximately parallel to the axis of the spindle. This procedure will consistently produce a bearing setting of 0.001″ to 0.003″ end play. If contact exists, immediately notify a STEMCO representative. Inspect keyway tang to ensure it does not contact the bottom of the keyway. Back the fastener off one face mark (according to chart).įailure to follow this instruction could cause the wheel to come off and cause bodily injury.Tighten the fastener to 100 ft-lbs while the wheel is rotating.Back the nut off one face mark (according to chart).Spin the wheel hub assembly at least one full rotation. Tighten the fastener to 200 ft-lbs while the wheel is rotating.With hub or hub/drum only, use a torque wrench: Thread the nut onto the axle until hand tight. Towel/and/or emery cloth to clean spindle.*Do not use power or air tools during installation of Zip-Torq Tools Needed for Installation Zip-Torq Installation Procedure & Bearing Adjustment.We will be referencing the following STEMCO PDFs: Zip-Torq consistently delivers accurate endplay between. The purpose of this tech tip is to inform customers of the proper installation methods for the Zip-Torq axle spindle nut. Zip-Torq is a unitized spindle nut that uses a patented self-locking ratchet system to secure the wheel end and prevent back off. With its robust single piece design, Zip-Torq takes the guesswork out of bearing adjustment. Product safety is built into the product from the initial design, considered throughout the manufacturing processes, and is accounted for in product installation. Reamed installations are still achievable with the STEMCO KAISER ECONO Kit king pin and bushing kit.STEMCO is very conscious of the role it plays in safety. With pre-sized bi-metal bronze bushings, this kit quickly becomes the alternative to a reamed king pin installation. In markets that require a bronze bushing, STEMCO offers the STEMCO KAISER Plus Kit. We also have full coverage with our Plus Kit™ and ECONO KIT. STEMCO KAISER offers the broadest coverage of king pin kits with over 250 options including 100 different QwikKit applications. The king pin is the most critical component on the steer axle, so the correct king pin must be specified and technicians must be trained on safe installation.
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