ELECTRICAL SECTION 8
Page 15
DRESSTA TD-25M EXTRA
WIRING DIAGRAM
Drive control system is provided with a LED array that presents the controller current operation
status which facilitates the controller diagnosis. Below find LED function description whose labeling
will be referred to later in this instruction.
• D28 – service signal light that is used during the controller programming only;
• L1 – ON, when the up shift button (Up) at the control lever is depressed;
• L2 – ON, when the downshift button (Dn) at the control lever is depressed;
• L3 – ON, when the drive train neutral lock lever is in locked position.
• L4 – OFF, not used in SUREGRIP control lever;
• L5 – OFF, not used in SUREGRIP control lever;
• L6 – ON, when the LH switch is at the high range;
• L7 – ON, when the RH switch is at the high range;
• L8 – ON, when the machine moves forward – the WF forward motion sensor activated;
• L9 – ON, when the machine moves reverse – the WR reverse motion pressure switch
will get activated;
• L10 – not used
• L11 – not used
• L12 – ON, when the solenoid valve EZR is activated which means;
the machine operates at the high range (L 6, L7 L13 and L14 are ON also)
or
the machine has been operated at the high range straight on (L6, L7, L12, L13 and L14 were
ON) and with the LT left switch changed from the high to low range that is a gradual turn to the
left (L13, L14 and L6 came OFF while both L15 and L7 are still ON) and if the drive train
neutral lock lever is in unlocked position, (L3 LED is OFF);
or
the machine has been operated at the low range straight on (L15 was ON) and with the RT
right switch changed from the low to high range that is a gradual turn to the left (L7
ON) and if
the if the drive train neutral lock lever is in unlocked position, (L3 LED is OFF);
• L13 – ON, when the solenoid valve EZL is activated which means;
the machine operates at the high range (L 6, L7 L12 and L14 are ON also)
or
the machine has been operated at the high range straight on (L6, L7, L12, L13 and L14 were
ON) and with the RT right switch changed from the high to low range that is a gradual turn to
the right (L12, L14 and L7 came OFF while both L15 and L6 are still ON) and if the drive train
neutral lock lever is in unlocked position, (L3 LED is OFF);
or
the machine has been operated at the low range straight on (L15 was ON) and with the left
switch changed from the low to high range that is a gradual turn to the right (L6 ON) and if the
drive train neutral lock lever is in unlocked position, (L3 LED is OFF);
• L14 – ON, when the machine operates at the high range, L15 must not be ON;
• L15 – ON, when the machine operates at the low range, L14 must not be ON;
• L16 – ON, when the 3rd gear was engaged, L17 and L18 must not be ON;
• L17 – ON, when the 2nd gear was engaged, L16 and L18 must not be ON;
• L18 – ON, when the 1st gear was engaged, L16 and L17 must not be ON;
• L19, L20, L21 – are used to learn the machine type code (different wiring). Refer to
Table 8.1.
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