SUSPENSION LOCK-OUT SYSTEM-Won't work; cylinder on the bum; switch won't turn lights on. If your weapon kicks like a mule when you're firing, it could mean that the suspension's off or not working. Here's how you can check this out: I 1. Turn the lock-out system off. 2. Drive your vehicle up on a 2A4 so the block raises both front wheels ? inchtr o Ithe ground (If you raise the wheels more thon 2 inches you could damage the seals in the lork- out cylinder when you releCae Ith. lock out system I welounOR- If the front wheels stay in the raised position you know the lock-out system's OK for those two wheels. Now test the next two wheels and the two after that till all eight wheels have been checked out. If any of them fail to check out OK, get your support guys on the job. O'course, this kicking could also mean the traversing/elevating slip clutch needs adjusting or the equilibrator pressure's wrong, or your spade's not em- placed right. So check 'em all.