D10R型推土机变速系统故障的排查(国外英文资料).doc

D10R型推土机变速系统故障的排查(国外英文资料) Troubleshooting of D10R bulldozer transmission system 2009-4-2 (1) could not walk Equipment management, equipment maintenance, detection and diagnosis of N6t China equipment management network OHX A D10R type bulldozer can not walk, the dashboard shows DIRLVROUT Equipment management, equipment maintenance, detection and diagnosis of N6t China equipment management network OHX CAL , namely the direction rod beyond the calibration range. The steering rod sensor is non-contact, the possibility of damage is very small, probably because of the long-term use of PWM sensor output signal changes, resulting in the drive controller can not be interpreted. Carter ET maintenance software online, FNR use the rod correction function for correction, fault code disappears, the machine back to normal. D10R bulldozer cab touch console also provides FNR direction pole correction function, the system can also complete the correction, faster. Equipment management, equipment maintenance, detection and diagnosis of N6t China equipment management network OHX (2) ascending switch fault Equipment management, equipment maintenance, detection and diagnosis of N6t China equipment management network OHX A new type of D10R bulldozer is normal, but the dashboard display UPSHTSW Equipment management, equipment maintenance, detection and diagnosis of N6t China equipment management network OHX ERR, namely up switch error. Shift operation of bulldozer is very frequently, up press the switch number, the right to switch is damaged. After inspection, the normal line, switch up part of the damage. After testing, the upshift in the switch normally open contact is normal, but normally closed contacts open, so the shift operation is normal, but the fault code. Because of the temporary absence of spare parts, and import parts procurement is very slow, so consider alternative methods. In the relay open contact and a normally closed contact of a pair of ordinary, just can substitute bl