TM 10-3930-653-14&P Steering wheel turns but truck does not steer: 1. Check   all   mechanical   connections   to   see   that nothing is disconnected or broken. a. chock drag link b. check center steering pin c. check  tie rods and tie  rodends Steering wheel is hard to turn or will not turn: 1. Check  hydraulic  pump  pressure    at  flow  divider valve  check  port.    Pressure  should  be  1,000  psi,  with wheel turned full left or right. a. Pressure   low,   check   hydraulic   system pressure for possible bad pump. b. Pressure     in     hydraulic     system     okay, replace flow divider. 2. Block  rear of  truck  off the ground so steer axle is free. a. Check for mechanical binding or interference. b. Check    king  pin  bearing  play  by  lifting bottom of each wheel while pushing in on the top. c. Correct any binding or loose fits. Noise in steer axle: 1. Block  rear  of  truck  off   the ground so steer axle is free. 2. Pivot      axle   to   check   for      freedom   in trunion bushings. 3. Rotate         wheels      to      check      wheel bearings. 4. Check  center arm for freedom  in center pin bearings but no side play. 4-222