TM 5-3895-383-24 7. When the vibratory system is off and when the machine is at high idle, read the amount of oil flow that passes through  the  flow  meter.    The  flow  should  be  less  than 3.8 L/min (1 US gpm). 8. Depress the vibratory on/off control to the ON position in order to start the vibratory system.  The flow should be at a minimum of 5.0 L/min (1.3 US gpm) to a maximum 8.8 L/min (2.3 US gpm). 9. Depress the vibratory on/off control to the OFF position in order to stop the vibration system.  Stop the engine. 10. Move   the   vibratory   a mplitude    control    to    the    HIGH AMPLITUDE position. 11. Repeat Steps 7 through 9. 12. If  the  flow  is  not  within  5.0  L/min  (1.3  US  gpm)  to  a maximum 8.8 L/min (2.3 US gpm), the size of the orifice in  the  flushing  valve  may  need  to  be  changed.    The diameter of the orifice should be 1.9 mm (0.075 inch).  If the  flow  from  the  vibratory  motor  cannot  be  adjusted correctly,   the   vibratory   motor   should   be   repaired   or replaced. 13. Remove all test tooling and reconnect line (2) to motor (1). Vibratory Frequency - Test and Adjust SMCS Code:  6606-025; 6606-081 Table 12 Required Tools Part Number Description Qty 133-9905 Frequency Meter 1 133-0963 Drum Vibration Tachometer 1 4C-6500 Digital Thermometer 1 Personal injury or death can result from sudden machine movement. Sudden  movement  of  the  machine  can  cause  injury  to persons on or near the machine. To prevent injury or death, make sure that the area around the machine is clear of personnel and obstructions before operating the machine. NOTICE To  avoid  damage  to  the  vibratory  system  during  testing, always perform the testing with the vibratory drum on top of tires or on loose dirt. Tires will simulate a non-compacted soil condition.  Never operate   the   vibratory   system   when   the   machine   is   on concrete. NOTICE If a testing time longer than three (3) minutes is required, rotate   the   drum   periodically   in   order   to   lubricate   the eccentric weight shaft bearings. Fixed Frequency High Amplitude NOTE: The  hydraulic  oil  temperature  should  be  at  least 38° C (100° F). Illustration 58 Control Console (1)   Vibratory   on/off   control   switch.      (2)   Vibrato   amplitude control.  (3) Variable vibration control knob. 1. Make  sure  that  the  parking  brake  is  applied.    Ensure that the propel control lever is in the STOP position. 2. Move    vibratory    amplitude    control    (2)    to    the    HIGH AMPLITUDE position. 3. Start the engine and run the engine at high idle.  Engine speed should be 2350 ± 50 rpm. 11-54