in the fixed position of the pilot seat. Inspect where  the seat lock pins fit; check the pin and seat rail grips  for wear and serviceability. [Figure 5-6] The battery and ignition switches need to be in the  OFF position at the beginning of the preflight in- spection. They will be turned on and then off again  to check the different components operated by the  power source during the preflight. While checking the  ignition switches, check that the strobe is operational  if one is installed. Exercise the primer or primer bulb,  if the PPC is so equipped; you should feel resistance  when exercised. Faulty primers can interfere with  proper engine operation.  Manipulate the engine throttle control by slowly  moving through its full range of motion to check for  binding or stiffness. On two-stroke engines with oil  injection, it is important to check that the oil injection  mechanism is moving freely. [Figure 5-7] Set the altimeter to the field elevation or set in the  barometric pressure, if equipped. Turn on the ignition  or engine instrument system master and make note  of the fuel quantity gauge indications, if applicable,  for comparison with an actual visual inspection of the  fuel tank(s) during the exterior inspection.  Inspect for any signs of deterioration, distortion, and  loose or missing bolts or locknuts.  Gently  shake the  cart to determine if objects and airframe parts are  loose and need to be tightened. Treat all aircraft and  their components with respect and care while con- ducting a preflight. As with all aircraft, the PPC does  not need to be “over-handled” to perform an adequate  preflight inspection. Check that all cables are free of  kinks, frays, abrasions or broken strands; check each  end of each flying cable for bolt security and check  that the thimbles are not twisted or elongated. Figure 5-7. Check the ignition switches, primer and oil  injections mechanism during preflight inspections.  Figure 5-6. Adjustable powered parachute front seat  mechanism.  5-7