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Curtis Model 3401T – August 2022

pg. iii

TABLE OF CONTENTS cont’d

PRESET USER INTERFACES — 3401T MODEL ............................................................................. 15

SPEED MODE ........................................................................................................................ 17

SIGNAL ICONS ....................................................................................................................... 17

DIRECTION ICONS ................................................................................................................. 18

BDI ........................................................................................................................................ 18

SPEEDOMETER ...................................................................................................................... 19

HOUR METERS, CARGO WEIGHT AND LIFT HEIGHT ................................................................. 19

KEYSWITCH HOUR METER ..................................................................................................... 20

STEERING ANGLE .................................................................................................................. 20

MESSAGE CENTER ................................................................................................................ 20

FAULT CODES ........................................................................................................................ 21

3: INSTALLATION AND WIRING ........................................................................................................... 22

INSTALLING THE 3401T ............................................................................................................... 22

I/O CONNECTOR .......................................................................................................................... 23

I/O PINS ....................................................................................................................................... 24

WIRING DIAGRAM ........................................................................................................................ 25

OPERATING VOLTAGE ................................................................................................................... 26

OPERATING CURRENT .................................................................................................................. 26

BATTERY CONNECTIONS .............................................................................................................. 27

KEYSWITCH ................................................................................................................................. 27

SWITCH 1–5 INPUTS .................................................................................................................... 27

SWITCH INPUTS .................................................................................................................... 27

FAULT CODE INPUTS .............................................................................................................. 28

SENDER INPUTS .................................................................................................................... 28

MOSFET DRIVER .................................................................................................................... 28

CAN CONNECTIONS ..................................................................................................................... 28

SERIAL COMMUNICATION INTERFACE (SCI) .................................................................................. 28

operating temperature with LCD heater	–40°C to +70°C
operating temperature without LCD heater	–20°C to +70°C
storage temperature	–40°C to +85°C

Kohler CURTIS 3401T User Manual

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