TESTING AND ADJUSTING STANDARD VALUE TABLE FOR ELECTRICAL PARTS PC400, 450-6 20-13 Sys- tem Name of component Connector No. Inspection method Judgment table Measurement conditions Control system LS-EPC solenoid C10 (male) Measure resistance If the condition is within the range shown in the table below, it is normal Between (1) – (2) 7 – 14 Ω Between(1), (2) – chassis Min. 1 MΩ 1) Turn starting switch OFF. 2) Disconnect connector C10. Engine throttle, pump controller Power supply C01 C02 Measure voltage If the condition is within the range shown in the table below, it is normal Between C01 20 – 30 V (7),(13) – (6),(12) Between C02 20 – 30 V (11),(21) - (6),(12) 1) Turn starting switch ON.
2) Insert T – adapter. Fuel control dial C03 Measure voltage If the condition is as shown in the table below, it is normal Between (7) – (17) 4.75 – 5.25 V (power source) Between (4) – (17) 4.0 – 4.75 V (low idling) Between (4) – (17) 0.25 – 1.0 V (high idling) 1) Turn starting switch ON. 2) Insert T – adapter. Potentiometer C03 Measure voltage If the condition is as shown in the table below, it is normal Between (14) – (17) 2.9 – 3.3 V (low idling) Between (14) – (17) 0.5 – 0.9 V (high idling) Between (7) – (17) 4.75 – 5.25 V (power source) 1) Turn starting switch ON. 2) Insert T – adapter.
Water temperature sensor P07 (male) Measure resistance If the condition is as shown in the table below, it is normal Normal temperature (25˚C) Approx. 37 – 50 kΩ 100˚C Approx. 3.5 – 4.0 kΩ 1) Turn starting switch OFF. 2) Disconnect connector P07. 3) Insert T – adapter. into connector at sensor end. Governor motor C02 Measure voltage If the condition is within the range shown in the table below, it is normal Between (2) – (3) 1.8 – 4.6 V Between (4) – (5) 1.8 – 4.6 V 1) Turn starting switch ON. 2) Insert T – adapter.
Battery relay C01 Measure voltage If the condition is within the range shown in the table below, it is normal Between (1) – (6) 20 – 30 V fl This is only for 2.5 sec after the starting switch is operated ON → OFF; at other times it must be 0 V. 1) Turn starting switch ON. 2) Insert T – adapter. Between (1) – (2) 7 – 14 Ω Between(1), (2) – chassis Min.
1 MΩ Between C01 (7),(13) – (6),(12) 20 – 30 V Between C02 (11),(21) - (6),(12) 20 – 30 V Between (7) – (17) (power source) 4.75 – 5.25 V Between (4) – (17) (low idling) 4.0 – 4.75 V Between (4) – (17) (high idling) 0.25 – 1.0 V Between (14) – (17) (low idling) 2.9 – 3.3 V Between (14) – (17) (high idling) 0.5 – 0.9 V Between (7) – (17) (power source) 4.75 – 5.25 V Normal temperature (25˚C) Approx. 37 – 50 kΩ 100˚C Approx. 3.5 – 4.0 kΩ Between (2) – (3) 1.8 – 4.6 V Between (4) – (5) 1.8 – 4.6 V Between (1) – (6) 20 – 30 V