ELECTRICAL SYSTEM
B2301, B2601, WSM
5. INSTRUMENT PANEL [1] EASY CHECKER™ If the warning lamps of the Easy Checker™ come on during operation, immediately stop the engine, and find the cause as shown below. Never operate the machine while Easy Checker™ lamp is on. Electrical Charge Warning Indicator If the dynamo is not charging the battery, the warning lamp in the Easy Checker™ will come on. If this should happen during operation, check the electrical charging system. Glow Plug Indicator When the key switch is in the "PREHEAT" position, the glow plug indicator illuminates. Engine Oil Pressure Warning Indicator If the oil pressure in the engine goes below 49 kPa (0.5 kgf/cm2, 7 psi), the warning lamp in the Easy Checker™ will come on. (1) Engine Oil Pressure Warning (3) Glow Plug Indicator Indicator (4) Coolant Temperature Gauge (2) Electrical Charge Warning (5) Fuel Gauge Indicator 9Y1211156ELM0020US0
[2] SWITCHES AND SENSORS Oil Pressure Switch While oil pressure is high and the force applied to the diaphragm (2) is larger than the spring tension, the terminal contact (1) is open separated from the body contact (3). If the pressure drops below approx. 49 kPa (0.5 kgf/cm2, 7.1 psi), the contact closes. (1) Terminal Contact (2) Diaphragm
(3) Body Contact 9Y1211156ELM0021US0
Fuel Sensor The remaining fuel quantity is detected by the fuel level sensor installed in the fuel tank and indicated on the fuel gauge. For detection, a float and a resistor are used. As the float (1) lowers, the resistance of the variable resistor (2) varies. The relation between the amount of fuel and the resistance is as follows. F 1 to 5 Ω (1) Float
1/2 32.5 Ω (Reference)
E 103 to 117 Ω
(2) Variable Resistor 9Y1211156ELM0022US0
8-M13
KiSC issued 11, 2014 A
