Troubleshooting Guide NOTE: Before troubleshooting any system problem, check service literature published by the equipment and/or   component   manufacturers.      Follow   their   instructions,   if   given,   for   checking   any component but the MAF TorqmotorTM unit. preparation Make    your    troubleshooting    easier    by    preparing    as follows: • work in a clean, well-lighted place; • have proper tools and materials nearby; • have an adequate supply of clean petroleum-based solvent. WARNING: SINCE  THEY  ARE  FLAMMABLE,  BE EXTREMELY CAREFUL WHEN USING    ANY    SOLVENT.        EVEN    A SMALL EXPLOSION OR FIRE COULD CAUSE INJURY OR DEATH. WARNING: WEAR   EYE   PROTECTION   AND   BE SURE  TO  COMPLY  WITH  OSHA  OR OTHER   MAXIMUM   AIR   PRESSURE REQUIREMENTS. preliminary checks Hydraulic systems are often trouble free.  The problem an operator complains of could be caused by something other  than  the  hydraulic  components.    Thus,  once  you have  determined  that  a  problem  exists,  start  with  the easy-to-check items, such as: • parts damaged from impact not properly repaired, or that should have been replaced; and • improperly spec'd replacement parts. • mechanical    linkage    problems    such    as    binding, broken, or loose parts or slipping belts. hydraulic components If   you   think   the   problem   is   caused   by   a   hydraulic component, start by checking the easy-to-reach items. Check all hoses and lines for cracks, hardening, or other signs   of   wear.      Reroute   any   useable   hoses   that   are kinked,  severely  bent,  or  that  rest  against  hot  engine parts.  Look for leaks, especially at couplings.  Replace any   hoses   or   lines   that   don't   meet   system   flow   and pressure ratings. Next, go to the reservoir and filter or filters.  Check fluid level  and  look  for  air  bubbles.    Check  the  filter(s).    A filter with a maximum 50 micron filtration is recommended for the MAF system. Visually   check   other   components   to   see   if   they   are loosely mounted, show signs of leaks, or other damage or wear. Excessive    heat    in    a    hydraulic    system    can    create problems that can easily be overlooked.  Every system has its limitation for the maximum amount of temperature.      After   the   temperature   is   attained   and passed, the following can occur: • oil seal leaks • loss of efficiency such as speed and torque • pump loss of efficiency • pump failure • hoses become hard and brittle • hose failure A normal temperature range means an efficient hydraulic system. It may be necessary that you run hydraulic tests on the performance of the hydraulic components.  To do so, consult the manuals published by the equipment or component manufacturers. 5