. OPERATION TROUBLESHOOTING 3 - 137 CHASSIS ( ): Always contact your Komatsu distributor when dealing with these it ems. In cases of problems or causes which are not listed below, contact your Komatsu distributor for repairs. Problem Main causes Remedy Torque converter oil temperature caution lamp flashes ( Check, repair) ( Check, repair) Add oil to specified level. See CHECK BEFORE STARTING Replace belt. See EVERY 500 HOURS SERVICE ( Clean or replace) Drive in direct range ( Repair, connect wiring) Steering wheel is heavy Add grease ( Replace cylinder seal) Steering wheel pulls Make tire inflation pressure uniform.
See CHECK BEFORE STARTING Check wear of brake disc For details, see EVERY 1000 HOURS SERVICE Braking effect is poor when brake pedal is depressed ( Replace disc) ( Replace disc) Charge to specified pressure Add oil to the transmission case See CHECK BEFORE STARTING Bleed air See WHEN REQUIRED Brake pulls to one side Dump body speed is slow ( Replace gear pump) Add oil to specified level. See CHECK BEFORE STARTING Suspension is hard ( Replace U-packing) ( Replace valve core) Wheel on one side tends to slip Bleed air from brakes (left, right). See WHEN REQUIRED ( Replace tires) Make load uniform ( Disassemble and adjust brake)