Wheelhorse3128 7 #1 Posted January 3 (edited) Dose anyone know what the tightening tourqe for the rear wheels on a wheelhorse 312 8 is? Edited January 3 by Wheelhorse3128 Share this post Link to post Share on other sites
ebinmaine 77,079 #2 Posted January 3 Actual torque spec varies by bolt grade. I don't remember whether it's grade 2 or 5. I aim for about 35 - 40 ft lbs on stock bolts. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,981 #3 Posted January 3 Back in 1978-79 Wheel Horse published a service manual that applies to many older and newer tractor models. The C-Series became the 300, 400 ad 500-Series so you can see the link. A good resource to have. The only place I have seen the hub bolt torque specs. Section 2 Page 2 2 Share this post Link to post Share on other sites
ebinmaine 77,079 #4 Posted January 3 3 minutes ago, gwest_ca said: Torque value that high would imply a Grade 8 fastener. Seems ambitious but possible. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,981 #5 Posted January 3 Are the wheel studs larger for the D-Series? Depending how you read it that torque may apply to the D-Series only. Share this post Link to post Share on other sites
ebinmaine 77,079 #6 Posted January 3 2 minutes ago, gwest_ca said: Are the wheel studs larger for the D-Series? Depending how you read it that torque may apply to the D-Series only. Good point. I've never seen the D Series setup. Share this post Link to post Share on other sites
pfrederi 19,794 #7 Posted January 3 Not so sure about WHs torque recommendations especially into cast iron. Maybe mine had a fault in the casting but when I tightened the hub set screw to the recommended 35ft Lbs in a lawn ranger hub it cracked.... Share this post Link to post Share on other sites
8ntruck 8,575 #8 Posted January 3 Typical lug nut torque values for steel wheels with conical lug nut seats in the automotive world is 80 lbft. Might be 120 lbft for 3/4 and 1 ton trucks. Working from memory here - i spent my career in various engineering positions in the steel wheel industry. Given the low operating speed and relatively light loading our little tractors see, 40 to 50 lbft should be OK. Just check the torque on them occasionally. We won't see the fatigue cracking in the wheel, broken studs, or experience the dire consequences of loosing a wheel at 70mph in our application. 3 Share this post Link to post Share on other sites
