TM  9-2350-267-10 Item No. DRIVER 7.1 Before 7.2 Before 8 Before Table  2-1.  Preventive  Maintenance  Checks  and  Services  for  Model  M992 Interval Location Item to Check/ Service Driver’s Seat Assembly Accelerator Pedal Instruments and  Gages Crewmember Procedure Move  driver’s  seat  to  several  posi- tions  by  operating  driver’s  seat  ad- justing lever. When lever is released, plunger should seat into support and hold  seat  securely  in  position.  In- spect adjusting lever, specifically the area  that  controls  movement  of  the plunger. Check  for  smooth  operation  of accelerator  pedal  and  missing  or unserviceable  accelerator  pedal  re- turn  spring. NOTE Vehicle may take longer to warm up depending  on  local  climate. a.  Start  vehicle.  Follow  starting main engine procedures. Run engine at fast idle. Not  Fully  Mission Capable  If: Any indication that seat  does  not  stay securely  locked  into position.  Adjusting lever  is  broken  or unserviceable. Return spring is missing or un- serviceable or accelerator  pedal does not return to idle  position  after being  depressed. a. Engine will not start. Change  1 2-35