TESTING AND ADJUSTING STANDARD VALUE TABLE FOR ELECTRICAL PARTS STANDARD VALUE TABLE FOR ELECTRICAL PARTS PC400, 450-6 20-11 Sys- tem Name of component Connector No. Inspection method Judgment table Measurement conditions Control system Fuel control dial E06 (male) Measure resistance If the condition is within the range shown in the table below, it is normal Between (1) – (2) 0.25 – 7 kΩ Between (2) – (3) 0.25 – 7 kΩ Between (1) – (3) 4 – 6 kΩ 1) Turn starting switch OFF. 2) Disconnect connector.
Governor motor Potentiometer E04 (male) Measure resistance If the condition is within the range shown in the table below, it is normal Between (1) – (2) 0.25 – 7 kΩ Between (2) – (3) 0.25 – 7 kΩ Between (1) – (3) 4 – 6 kΩ 1) Turn starting switch OFF. 2) Disconnect connector. Motor E05 (male) Measure resistance If the condition is as shown in the table below, it is normal Between (1) – (2) 2.5 – 7.5 Ω Between (3) – (4) 2.5 – 7.5 Ω Between (1) – (3) Min. 1 MΩ Between (1) – chassis Min. 1 MΩ Between (3) – chassis Min. 1 MΩ 1) Turn starting switch OFF. 2) Disconnect connector.
Engine speed sensor E7 Measure resistance If the condition is within the range shown in the table below, it is normal Between(male) (1) – (2) 500 – 1,000 Ω Between(male) (2) – chassis Min. 1 MΩ 1) Turn starting switch OFF. 2) Disconnect connector. Measure voltage Measure with AC range Between (1) – (2) 0.5 – 3.0 V 1) Start engine. 2) Insert T – adapter. Adjust 1) Screw in rotation sensor until it contacts ring gear, then turn back 1 ± 1/6 turns. 2) It must work normally when adjusted as above.
PPC oil pressure switch Travel S01 boom RAISE S02 arm OUT S03 boom LOWER S04 arm IN S05 bucket CURL S06 bucket DUMP S07 swing S08 Measure resistance If the condition is as shown in the table below, it is normal When boom, arm, and bucket levers are operated Between All levers at neutral Min. 1 MΩ (male) (1) – (2) Levers operated Max. 1 Ω Between (male) Min. 1 MΩ (1),(2) - chassis 1) Start engine (or with engine stopped and accumulator charged) 2) Disconnect connectors S01 – S08.
Between (1) – (2) 0.25 – 7 kΩ Between (2) – (3) 0.25 – 7 kΩ Between (1) – (3) 4 – 6 kΩ Between (1) – (2) 0.25 – 7 kΩ Between (2) – (3) 0.25 – 7 kΩ Between (1) – (3) 4 – 6 kΩ Between (1) – (2) 2.5 – 7.5 Ω Between (3) – (4) 2.5 – 7.5 Ω Between (1) – (3) Min. 1 MΩ Between (1) – chassis Min. 1 MΩ Between (3) – chassis Min. 1 MΩ Between(male) (1) – (2) 500 – 1,000 Ω Between(male) (2) – chassis Min. 1 MΩ Between (1) – (2) 0.5 – 3.0 V Between (male) (1) – (2) All levers at neutral Min. 1 MΩ Levers operated Max. 1 Ω Between (male) (1),(2) - chassis Min. 1 MΩ