JLG 1250AJP Service Manual - Manual (Page 70)

SECTION 3 - 1CHASSIS & TURNTABLE
3-22 – JLG Lift – 3121171
Figure 3-16. Hub Assembly
1= M18x1,5..........................Filling, draining and oil level plugs
2= 7/16" - 20 UNF - 2B..........Brake port