WORKSHOP SERVICE MANUAL 4283093M1
Battery ..................................................................................................................................................... 10-3 Wiring/Fuse Arrangement ....................................................................................................................... 10-5 Neutral Starting Switches ........................................................................................................................ 10-6 Combination Switch ................................................................................................................................. 10-6 Main Switch ............................................................................................................................................. 10-6 Spare Power Supply ................................................................................................................................ 10-7
Wiring Diagram .............................................................................................................................................. 10-7 Electrical ...................................................................................................................................................... 10-11
Safety Switches, Fuses and Relays ...................................................................................................... 10-11 Fuel Shut Off Solenoid .......................................................................................................................... 10-13 Oil Pressure Sending Unit ..................................................................................................................... 10-13 Water Temperature Sending Unit .......................................................................................................... 10-14 Fuel gauge Sending Unit ....................................................................................................................... 10-14
Instrument Panel .......................................................................................................................................... 10-15
(1) Battery
(1) Flashing Warning Light Switch
(2) Slow Blow Fuse (L: For Main Circuit (40A))(R: For Alternator (40A))
(3) Alternator B Terminal
(5) Starter B Terminal
(10) Key Stop Relay
(12) Engine Safety Relay
(13) Engine Glow Plugs
Battery
FIG. 3: The battery (1) is located under the engine hood in front of the instrument panel. When battery removal, electrolyte inspection, or cable cleaning is required, open the engine hood.
Keep top of battery clean and make sure cable connections are clean and tight. Debris on battery can cause discharge of battery and possible fire.
m CAUTION: Batteries produce explosive hydrogen gas when charged. Keep all sparks and open flame away from battery.
When necessary to disconnect battery cables, always disconnect the grounded (-) cable first to prevent short circuits.
Batteries contain sulfuric acid electrolyte (fluid). Wear eye and face protection. If electrolyte comes in contact with skin or clothes, wash immediately. Contact physician if electrolyte is ingested or gets in eyes.
FIG. 4: If battery replacement is necessary, disconnect negative (-) cable (1) first and then remove positive (+) cable (2). Loosen and remove battery securing clamp and carefully remove battery from tractor.
When installing battery, connect cable (2) connected to starter solenoid to positive (+) battery terminal first. Then connect cable (1) grounded to tractor frame to negative (-) battery terminal.
IMPORTANT: Do not reverse battery cable connections as severe electrical system damage will result.
NOTE: Make sure replacement battery is of the same size and equal capacity.
NOTE: Water does not need to be added to battery. The battery is a maintenance-free type battery.
Never close or cover vent of battery.
FIG. 3
10-4 4283093M1
FIG. 5: Battery indicator (1) color shows battery condition. When checking battery, park machine on a level surface and check the indicator at top of battery.
If indicator shows clear or light green color, tap battery body to remove bubble inside indicator.
m WARNING: Never disassemble battery. Batteries contains sulfuric acid electrolyte (fluid). Keep away from sparks or flames, which could cause explosion.
When charging battery from an external source, set charging voltage below 16V. Set charging ampere below 1/10 (one tenth) of battery capacity.
When connecting and disconnecting battery cables, turn off power of battery charger. If you have any questions about the battery, consult your dealer.
If battery performance is low, remove battery and charge from an external supply following battery charger instructions. Repeated battery charging can be because of a defect in tractor charging system and/or a defective battery.
NOTE: When charging battery from an external supply, battery temperature must not be more than 54 degrees C (125 degrees F). If battery becomes too hot, charge rate must be reduced or stopped.
FIG. 5
4283093M1 10-5
Wiring/Fuse Arrangement
m CAUTION: Keep all wiring connections clean and tight. Make sure wiring is correctly secured to prevent damage.
m CAUTION: DO NOT alter wiring by adding home-made extensions or replacements. Doing so can eliminate fuse protection and/or eliminate safety features of the system.
m CAUTION: Tractor is equipped with negative (-) ground system. Tractor metal parts provide many electrical connections. For this reason, all positive (+) circuits must be insulated to prevent grounding or short circuits and prevent possible fire.
m CAUTION: DO NOT replace any fuse with a fuse of higher amperage rating. DO NOT use wire (or foil) to by-pass fuse protection. Fire can result.
If fuses blow repeatedly, examine electrical system for grounded or shorted circuits.
FIG. 6: Main fuse box (1) - Located on right-hand side at the rear of the engine.
Slow blow fuses (2) are located above and to the right of battery. Slow blow fuses are inline fuses that protect a circuit by melting when sustained heavy electrical load or short circuit is found. Slow blow fuses give a delayed action to prevent current break when short surges are found.
IMPORTANT: Fuses are of specific amperage for the circuit. Do not replace fuses with unauthorized parts.
NOTE: Failure of alternator circuit slow blow fuse is normally caused from not correct polarity (such as reversed cables when using a booster battery). A failed fuse will not let battery be charged during normal operation.
FIG. 7: Main fuse box components:
Slow blow fuses:
(6) A 40A slow blow fuse is green and protects the main circuit.
(7) A 40A slow blow fuse is green and protects the alternator circuit.
FIG. 6
3 5A Engine stop
5 10A Instrument panel
Neutral Starting Switches
This tractor is equipped with a neutral-start system consisting of neutral switches and a relay. To start the tractor, ALL the following is required:
• Range shift lever must be in neutral position.
• PTO control lever must be OFF.
m WARNING: DO NOT bypass or modify the neutral switch. If the neutral start system does not operate properly, consult your Dealer immediately.
Combination Switch
Main Switch
FIG. 8 I-11182
Light Switch
Spare Power Supply
FIG. 10: Located at the rear of the tractor to the left-hand side of the top link is a spare power supply receptacle (1). Use a male bullet connector 4 mm (0.156 in) with 0.85mm2 (18 ga) wire size. See item 19 in Fig. 12.
WIRING DIAGRAM
FIG. 11: This illustration shows a wiring legend for schematics on the following pages.
(1) Wire size (2) Wire color code (3) Ground
FIG. 10
Wire Color Code Wire Color
W White YR Yellow/Red
B Black WR White/Red
R Red WB White/Black
Y Yellow WY White/Yellow
G Green WL White/Blue
L Blue BR Black/Red
Br Brown RY Red/Yellow
O Orange YB Yellow/Black
P Pink GB Green/Black
Gr Gray GR Green/Red
RW Red/White GW Green/White
The following information refers to Fig. 12:
(1) Engine Stop Solenoid (2) Fuel Pump - 12V 1.5A (3) Glow Plugs (4) Hazard Switch (5) Water Temperature Sensor (6) Oil Pressure Sensor (7) Flasher Unit (SAE) (8) Tail Light Relay (normal open type) (8a) Left-hand (8b) Right-hand (9) Fuel Gauge (10) Fuel Meter (11) Instrument Panel with Monitor (12) Left Turn Signal Display Lamp (13) Right Turn Signal Display Lamp (14) Oil Pressure Display Lamp (3.4W) (15) Battery Charge Display Lamp (3.4W) (16) Right-Hand Turn Signal Lamp - 12V 21W x 2 (17) Right-Hand Tail Lamp - 12V 5W / 21W (18) Seat Switch (with cushion seat assembly) (19) Spare Power Supply - capacity less than 70W (20) Left-Hand Turn Signal Lamp - 12V 21W x 2 (21) Left-Hand Tail Lamp - 12V 5W 21W (22) Safety Switch (PTO clutch lever) (23) Safety Switch (sub change) (24) Starter Relay (normal open type) (25) Diode - 3A (26) Main Switch (27) Combination Switch -
Lamp 12V 100W, Blinker 12V 60W (28) Fuse Box (29) Engine Stop Relay (30) Slow Blow Fuse - 40A (31) Starter Motor - 12V 1.1 kw (32) Slow Blow Fuse - 40A (33) Alternator - 12V 40A (34) Left-Hand Head Lamp - 12V 13W x 2 (35) Right-Hand Head Lamp - 12V 13W x 2 (36) Battery - 55824R/S 433 cca
FIG. 12
Safety Switches, Fuses and Relays
FIG. 13: The fuse panel (1) is located to the right of the battery.
FIG. 14: The slow blow fuses (1) that protect the starter circuit and charging circuit are located on the wire harness to the right of the battery.
FIG. 15: The seat switch (1) is located under the seat.
FIG. 13
10-12 4283093M1
FIG. 16: The PTO Switch (1) is located on the LH side at the base of the PTO shift linkage.
FIG. 17: The neutral start switch (1) is located below the base of the range lever on the RH side.
FIG. 18: The LH red flasher relay (1) the RH red flasher relay (2) is mounted on the RH side of the steering column.
The Fuel Shut Off relay (3) and Hazard/Turn Signal relay (4) for the amber lights on the fender are mounted on the RH side of the steering column. The Fuel Shut Off relay energizes the fuel shut off solenoid for approximately ten seconds after the key is turned off.
The safety start relay (5) is located on the RH side of the steering column. The safety relay will not let the engine start if the PTO is engaged or the range lever is in gear. The safety relay will also shut the engine OFF if the PTO is engaged or the range lever is engaged and the operator is not sitting in the seat.
FIG. 16
Electrical
FIG. 19: The diode (1) is located In front of the steering column behind the battery.
Fuel Shut Off Solenoid
FIG. 20: The Fuel Shut Off relay energizes the fuel shut off solenoid (1) for approximately ten seconds after the key is turned OFF. When the solenoid is energized, the flow of fuel to the engine is turned OFF. The fuel shut off solenoid is located on the injection pump. The fuel can also be shut off manually by pressing in on the rubber boot (2) at the end of the fuel shut off solenoid.
Oil Pressure Sending Unit
FIG. 21: The oil pressure sending unit (1) is located on the LH side of the engine. The oil pressure light will turn on when the engine oil pressure drops below 68 kPa (10 psi). Tighten the sending unit 8 - 14 ft-lbs.
FIG. 19