4. Boom  Operation.  Operate  the  boom  from minimum radius to maximum radius for the load applied. 5. Hydraulic  Crane  Slippage. Lift the test load at maximum  radius  and  allow  time  for  fluid  and component temperatures to stabilize. Hold the load for  10  minutes  without  the  operator  using  the controls. There should be no significant lowering of the load, boom, or outrigger beam due to a component or system malfunction or failure during the test. The significance  of  any  lowering  shall  be  evaluated  by  the certifying   officer,    depending   on   operating requirements  and  safety. 5.5.2  Maximum  Test  Load  at  Maximum  Radius  of Crane (Stability Test) 1. Boom  Operation.    Raise and lower the boom through the full-working range. Visually observe for smooth   operation. Test the boom brake for proper operation.  For  hydraulic  cranes,  the  test  is  performed with  the  boom  fully  retracted  and  fully  extended. 2. Rotation. Rotate the crane left and right the maximum  degrees  allowed  by  the  manufacturer  at slow  speed. Apply  the  brake  periodically  during rotation. The brake should have the ability to stop the rotating motion in a smooth, positive manner. NOTE:  Where  brakes  are  designed  for  holding only,  operate  controls  (plugging)  to  stop  rotation  then apply  brakes.  Test  shall  be  performed  with  boom fully retracted and fully extended. 3. Hydraulic  Crane  Slippage. Lift the test load at maximum  radius  and  allow  time  for  fluid  and component temperatures to stabilize. Hold the load for  10  minutes  without  the  operator  using  the controls. There should be no significant lowering of the   load,   boom,   or   outrigger   beams   due   to   a component or system malfunction or failure during the  test.  The  significance  of  any  lowering  shall  be evaluated  by  the  certifying  officer,  depending  on operating requirements and safety. 5.5.3 Auxiliary and Jib Hoist. The test load should be the maximum load for the hoist. 1. Static  Test.  Raise  the  test  load  to  clear  the ground  and  hold  for  10  minutes.  Observe  any lowering  that  occurs  that  may  indicate  a  malfunction of  the  hoisting  components  or  brakes. 2. Dynamic  Test. Raise and lower the test load at normal  operating  speeds.   Lower the test load to the ground until the hoist lines are slack. Wait 5 minutes, hoist the test load, and continue the test. 3. Hoist Brake Test. Test the ability of the brake to control and stop the load. Next, test the ability of the brake to hold and lower the test load with the friction  clutch  disengaged,  if  applicable. 5.5.4  Free-Rated  Load  Test. To check the stability of the crane and operation of  the  crane  carrier,  wheels,  tires,  tracks,  brakes,  and so   forth,   under   load. Retract   outriggers   before beginning the free-rated test. CAUTION ATTACH  TAG  LINES  TO  THE  LOAD TO  CONTROL  OSCILLATION. NOTE: No static test is required (not applicable to  mobile  cranes  temporarily  mounted  on  barge). 1.  Hoist  the  maximum  free-rated  test  load  at  the maximum radius over the rear. a. Rotate the load through the “over the rear” working  arc. b. Travel a minimum of 50 feet with the test load held over the rear of the crane with the boom parallel to the longitudinal axis of the crane carrier. 2.  Hoist  the  maximum  free-rated  test  load  at  the maximum radius over the side. a. Rotate the load through the full-working range. b. Travel a minimum of 50 feet with the test load over the left and then the right side of the crane carrier with the boom 90 degrees to the axis of travel. As   outlined   in   the   COMSECOND/COM- THIRDNCBINST 11200.1 series, rated free loads or pick   and   carry   operations   are   only   performed according to  NAVFAC P-307  during  a  certification,  in case  of  an  emergency,  or  as  directed  by  the  crane certifying officer. 5.5.5 Test After Change or Repair of Tires. After change or repair of tires, the crane should be tested with the maximum free-rated test load over the affected tire(s). Raise and hold the test load for 10 minutes  while  observing  the  changed  or  repaired tire(s). 5.6 Weight-Handling Equipment Used for Other Than Lift  Crane  Service. Locomotive,  crawler,  truck,  and  cruiser  cranes used for clamshell, dragline, magnet, pile driving, or other  nonlift  crane  work  should  be  tested  at  the 3-18