Description
Kubota RT210-2e RT220-2e Wheel Loader Service Manual
RT210-2e RT220-2e Contents:
2 Description…………………………………………………………………………………………………………………. 19
2.1 Electrical system…………………………………………………………………………………………………………………. 19
2.1.1 Schematic overview………………………………………………………………………………………………………19
2.1.2 Electrical diagram………………………………………………………………………………………………………… 19
2.1.3 DCU (Display Control Unit)…………………………………………………………………………………………… 20
2.1.4 MCU (Machine Control Unit)…………………………………………………………………………………………. 20
2.1.5 DC-DC converter…………………………………………………………………………………………………………. 21
2.1.6 Power controller……………………………………………………………………………………………………………21
2.1.7 TLC (Traffic Light Controller)………………………………………………………………………………………….22
2.1.8 CAN (Control Area Network) isolator……………………………………………………………………………… 22
2.1.9 Battery and internal charger…………………………………………………………………………………………..23
2.1.10 MFC (Multi-Function Controller)…………………………………………………………………………………… 23
2.1.11 FCM (Function Control Module)…………………………………………………………………………………… 24
2.1.12 Termination resistors……………………………………………………………………………………………………25
2.1.13 Fuses and relays……………………………………………………………………………………………………….. 25
2.1.13.1 Fuse box 1………………………………………………………………………………………………………… 26
2.1.13.2 Fuse box 2 (If applicable)……………………………………………………………………………………. 28
2.1.13.3 Fuse box 3 (If applicable)……………………………………………………………………………………. 29
2.1.13.4 Main contactor…………………………………………………………………………………………………….30
2.1.14 Ground connections…………………………………………………………………………………………………….30
2.1.15 High power connections……………………………………………………………………………………………… 32
2.1.16 Electric motors…………………………………………………………………………………………………………… 34
2.1.17 Diagnostic connector………………………………………………………………………………………………….. 35
2.1.18 Service Tool………………………………………………………………………………………………………………. 36
2.2 Hydraulic system………………………………………………………………………………………………………………….36
2.2.1 Hydraulic diagram…………………………………………………………………………………………………………36
2.2.2 Overview of the steering hydraulics……………………………………………………………………………….. 37
2.2.3 Overview of the work hydraulics……………………………………………………………………………………. 38
2.2.4 Work pump…………………………………………………………………………………………………………………. 39
2.2.5 Main control valve……………………………………………………………………………………………………….. 39
2.2.6 Hydraulic cylinders………………………………………………………………………………………………………..41
2.2.6.1 Tilt and lift cylinders……………………………………………………………………………………………… 41
2.2.6.2 Steering cylinder……………………………………………………………………………………………………42
2.2.6.3 Attachment lock cylinder……………………………………………………………………………………….. 42
2.2.7 Steering unit…………………………………………………………………………………………………………………43
2.2.8 6/2-diverter valve (If applicable)…………………………………………………………………………………….. 44
2.3 Transmission and wheels…………………………………………………………………………………………………….. 45
2.3.1 Overview…………………………………………………………………………………………………………………….. 45
2.3.2 Brake and inching system……………………………………………………………………………………………..46
3 Maintenance……………………………………………………………………………………………………………….. 47
3.1 General maintenance instructions…………………………………………………………………………………………. 47
3.2 Performing a test drive………………………………………………………………………………………………………… 48
3.3 Ordering parts…………………………………………………………………………………………………………………….. 48
3.4 Servicing below the lifting arm……………………………………………………………………………………………… 48
3.4.1 Installing the safety bracket……………………………………………………………………………………………48
3.4.2 Storing the safety bracket…………………………………………………………………………………………….. 49
3.5 Accessing parts……………………………………………………………………………………………………………………50
3.5.1 Opening the bonnet………………………………………………………………………………………………………50
3.5.2 Tilting the driver’s seat…………………………………………………………………………………………………. 50
3.5.3 Accessing the steering unit…………………………………………………………………………………………… 51
3.5.4 Accessing the brakes…………………………………………………………………………………………………… 52
3.6 Panolin synthetic hydraulic oil (If applicable)………………………………………………………………………….. 52
3.6.1 Requirements……………………………………………………………………………………………………………….53
3.6.2 Sample method…………………………………………………………………………………………………………….53 and more
