4.6. Other troubles Troubleshooting 4.6.3. Hydraulic system If faults or causes of faults are not listed below, have them rectified by local dealer. HYDROSTATIC DRIVE UNIT *) Have this work performed by local dealer.
4-14 WA90-5 – VEAM270100 Fault Fault cause Remedy Machine does not drive Parking brake applied Oil level in hydraulic oil tank too low Release parking brake Driving direction switch in position 'N' Set driving direction switch to either position 'F' or 'R' Driving direction switch without function *) Check function of driving direction switch Oil level in hydraulic oil tank too low Top up hydraulic oil Machine does only drive slowly and performance is poor Hydrostatic motor motor does not swivel Check hydrostatic motor for contamination; clean dirty hydraulic motor *) Check function of hydrostatic motor On-off-valve without function *) Check function of on-off valve; replace defective on-off-valve Hydrostatic pump defective *) Replace hydrostatic pump Wrong control pressure *) Check control pressure; reset, if required Wrong high pressure *) Check high pressure; reset, if required Inch valve defective or set incorrectly *) Check setting of inch valve *) Replace defective inch valve Hydraulic filter dirty Replace filter element of hydraulic filter Switching relay without function *) Check function of switching relay; repair or replace defective switching relay