Kubota M5040, Workshop Manual

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CONTENTS
SERVICING
1. TROUBLESHOOTING ..................................................................................10-S1
2. SERVICING SPECIFICATIONS ..................................................................10-S5
3. TIGHTENING TORQUES ............................................................................10-S6
4. PRECAUTIONS AT REPAIRING REFRIGERANT CYCLE ......................10-S7
[1] HANDLING OF SERVICE TOOLS.......................................................10-S8
(1) Manifold Gauge Set ..........................................................................10-S8
(2) Refrigerant Charging Hose .............................................................10-S10
(3) Vacuum Pump Adaptor ...................................................................10-S11
(4) Electric Gas Leak Tester.................................................................10-S11
(5) Can Tap Valve ................................................................................10-S12
(6) T-joint ..............................................................................................10-S12
(7) R134a Refrigerant Recover and Recycling Machine ......................10-S12
5. CHECKING AND CHARGING REFRIGERANT CYCLE.........................10-S13
[1] CHECKING WITH MANIFOLD GAUGE ............................................10-S13
[2] DISCHARGING, EVACUATING AND CHARGING ...........................10-S17
(1) Discharging the Refrigerant ............................................................10-S17
(2) Evacuating the System ...................................................................10-S18
(3) Charging the Refrigerant.................................................................10-S19
(4) Checking Charge Refrigerant Amount ............................................10-S21
6. CHECKING, DISASSEMBLING AND SERVICING..................................10-S22
[1] CHECKING AND ADJUSTING ...........................................................10-S22
(1) Compressor ....................................................................................10-S22
(2) Relay (A/C Compressor, Front Working Light, Front Wiper, Blower,
Blower Hi, ACC, Auxiliary Power) ...................................................10-S22
(3) Wiper Relay ....................................................................................10-S23
(4) Control Panel (Blower Switch, A/C Switch, Mode Control Dial,
Temperature Control Dial and Recirculation/Fresh Air Selection
Switch) ............................................................................................10-S24
(5) Blower Resistor ...............................................................................10-S27
(6) Blower Motor ...................................................................................10-S27
(7) Temperature Motor .........................................................................10-S28
(8) Mode Motor .....................................................................................10-S28
(9) Recirculation/Fresh Air Motor .........................................................10-S29
(10)Pressure Switch..............................................................................10-S30
(11)Front Wiper Switch .........................................................................10-S31
(12)Front Wiper Motor...........................................................................10-S31
(13)Rear Wiper Switch (If Equipped) ....................................................10-S32
(14)Rear Wiper Motor (If Equipped)......................................................10-S32
[2] DISASSEMBLING AND ASSEMBLING..............................................10-S33
(1) Separating Cabin from Tractor........................................................10-S33
(2) Removing Compressor Assembly...................................................10-S39
(3) Removing Air Conditioner Unit........................................................10-S41
(4) Removing Air Conditioner Pipes .....................................................10-S43
(5) Removing Heater Hoses .................................................................10-S45
(6) Cab Windshield ...............................................................................10-S47
(7) Wiper Motor ....................................................................................10-S49
[3] SERVICING ..........................................................................................10-S50
KiSC issued 06, 2008 A