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CLEANING THE AIR FILTER
TROUBLESHOOTING CHART

TM-5-3895-374-24-1 Paving Machine Bituminous Material: Crawler Mounted Diesel Engine Driven Manual
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TM 5-3895-374-24-1 ADJUSTING DRIVE BELT TENSION Proper    belt    tension    and    pulley    alignment    must    be maintained for maximum drive efficiency and belt life The correct  tension  exists  If  a  deflection  of  1/2"  occurs  by placing  10  Ib  of  force  midway  between  the  motor  pulley and  the  compressor  flywheel  See  Fig  9  This  deflection can  be  adjusted  by  the  following  procedure  The  pulley should   be   carefully   aligned   with   the   flywheel,   and   all setscrews should be kept tight. 1 Remove the belt guard 2. Loosen the motor mounting bolts 3 Shift   the   motor   to   the   point   where   the   correct deflection exists. 4. Retighten the motor mounting bolts 5 Check to ensure that the tension remained correct 6 Reinstall  the  belt  guard  All  moving  parts  must  be guarded. NOTE:  Drive  belt  tensioning  and  pulley  alignment  are done   at   the   same   time   They   are   discussed separately for clarity PULLEY ALIGNMENT Fig 10 shows three examples of pulley misalignment.  To check pulley alignment, remove the belt guard and place a straightedge against the compressor flywheel (see Fig 10).     Measure     and     record     the     distance     from     the straightedge to the edge of the drive belt at point A. Then measure the distance from the straightedge to the edge of the drive belt again at points B and C. Both distances should be the same as at point A if B or C are different from A, there is a misalignment which must be corrected before    the    compressor    is    run.    To    correct    a    pulley misalignment, use the following procedure. 1. Loosen the motor mounting bolts. 2. Loosen the setscrew on the motor pulley. 3. Align     the     motor     pulley     with     the     compressor flywheel (see Fig 10). 4. Retighten the motor pulley setscrew. 5. Adjust   the   proper   belt   tension   as   stated   in   the preceding paragraph. 6. Retighten the motor mounting bolts. 7. Reinstall  the  belt  guard  All  moving  parts  must  be guarded. THREE EXAMPLES OF PULLEY MISALIGNMENT (Only one belt is shown, for clarity) Figure 10.  Checking Pulley Alignment 200-2009 (page 3-638)







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