2-8. Procedures for M915 thru M920, M915A1 22 1/2 Ton Truck, 6x6.
a. Loop one end of chain through a U-bolt. Run hex nuts all the way up the U-bolt to give extra support before
installing the U-bolt to the seat assembly. Drill two holes (approximately 1 1/2 inches) from the top of the seat riser (using
1/4 inch drill). Mount U-bolt to seat assembly, tighten nuts and stake threads (on inside side of seat assembly), so U-bolts
b. Place free end of chain up through and around steering wheel and secure with padlock.
c. Parts required are as follows:
Figure 7. Chain and Attaching Hardware.