Installing the <NOBR>388-8273</NOBR> Work Tool Electrical Harness with Left Hand Joystick {1408} Caterpillar


Installing the 388-8273 Work Tool Electrical Harness with Left Hand Joystick {1408}

Usage:

242D A9W


Compact Track Loader
259D (S/N: LW51-UP; FTK1-UP; GTK1-UP; FTL1-UP)
279D (S/N: TP51-UP; GTL1-UP; PPT1-UP; RCX1-UP)
289D (S/N: WE51-UP; WCT1-UP; TAW1-UP; A9Z1-UP)
299D (S/N: GTC1-UP)
299D XHP (S/N: JST1-UP)
299D2 (S/N: FD21-UP; BY41-UP)
299D2 XHP (S/N: DX21-UP; DX91-UP)
Multi Terrain Loader
257D (S/N: EML1-UP; FMR1-UP; D5T1-UP; EZW1-UP)
277D (S/N: NTL1-UP; FMT1-UP; MLT1-UP)
287D (S/N: STK1-UP; TLK1-UP; HMT1-UP)
297D (S/N: BE71-UP)
297D XHP (S/N: HP71-UP)
297D2 (S/N: BL71-UP)
297D2 XHP (S/N: HP21-UP)
Skid Steer Loader
236D (S/N: K2D1-UP; SEN1-UP; MPW1-UP; BGZ1-UP)
242D (S/N: HFB1-UP; DML1-UP; DZT1-UP; A9W1-UP)
246D (S/N: PN51-UP; BYF1-UP; JSL1-UP; HMR1-UP)
262D (S/N: RE51-UP; DTB1-UP; KTS1-UP; LST1-UP)
272D (S/N: B5W1-UP)
272D XHP (S/N: ETL1-UP)
272D2 (S/N: BL21-UP)
272D2 XHP (S/N: MD21-UP)

Introduction

Table 1
Revision History 
Revision  Summary of Changes 
07  Added prefixes K2D, HFB, D5T, LW5, PN5, RE5, TP5, WE5 

The procedures in this Special Instruction are for the installation of the 388-8273 Work Tool Wiring Kit. Read and understand the information in this Special Instruction before performing any of the steps listed below.

Required Parts

Table 2
Parts of the 388-8273 Work Tool Wiring Kit 
Part  Part No.  Description  Qty. 
(1)  7K-1181  Cable Strap (15.5-IN) 
(2)  9X-2546  Bolt 
(3)  146-9439  Relay As 
(4)  159-9495  Nut 
(5)  178-3620  Strap 
(6)  263-5418  Rocker Switch (WORK TOOL) 
(7)  356-6115  Work Tool Harness As 
(8)  379-1615  Joystick Control Gp 
(9)  396-7208  Bracket 
(10)  159-9496  Lockwasher 
(11)  266-3316  Bolt 
(12)  3S-2093  Cable Strap 
(13)(1)  7P-1695  Washer 
(14)  8T-4121  Hard Washer 
(15)  8T-4133  Nut 
(1) For use with 272D, 299D machines only.

Connector Configuration

Table 3
356-6115 Work Tool Harness As Pin Configuration 
Pin  Wire No.  Wire Color 
A571-T2  Purple 
A572-T8  Pink 
M906-T3  Blue 
M907-T4  Gray 
H759-T12  Orange 
H758-T11  Brown 
C460-T7  Blue 
C481-T5  Green 
Ground  200-T1  Black 

Table 4
263-5418 Rocker Switch Connector Configuration 
Pin  Wire Number  Wire Color 
N/A  N/A 
190-L108  Pink 
A572-L119  Pink 
N/A  N/A 
N/A  N/A 
N/A  N/A 
200-L91  Black 
614-L114  Purple 
N/A  N/A 
10  N/A  N/A 

Table 5
12 Pin Joystick Connector Configuration 
Pin  Wire Number  Wire Color 
N/A  N/A 
322-CH6  Gray 
114-CH7  Red 
N/A  N/A 
G985-CH10  Purple 
781-CH11  Pink 
203-CH20  Black 
782-CH12  Gray 
N/A  N/A 
10  P814-CH13  Blue 
11  F763-CH14  White 
12  203-CH15  Black 

Table 6
Receptacle Connection 
Pin  Wire No.  Wire Color 
1 Power  126-CH24  Pink 
2 Ground  203-CH25  Black 
3 Signal - X Axis  E847-CH26  Gray 
4 Calibration - S  N/A  N/A 
5 Signal - Y Axis  E848-CH27  Green 
6 Calibration - R  N/A  N/A 

Installation Procedure

Installing the Harness on the ARC Machines



    Illustration 1g03413899
    (9) 396-7208 Bracket
    (11) 266-3316 Bolts

  1. Attach bracket (9) to the plate on the lift arm. Secure using two bolts (11). Tighten to a torque of 40 ± 4 N·m (30 ± 3 lb ft).


    Illustration 2g03413912
    (7) 356-6115 Work Tool Harness As

  2. Route harness (7) inside the left lift arm. Start from the rear of the machine feeding the 344-6145 Receptacle As in first. Feed harness (7) through the arm until the 344-6145 Receptacle As reaches bracket (9).


    Illustration 3g03414710
    (4) 159-9495 Nut
    (9) 396-7208 Bracket
    (10) 159-9496 Lockwasher
    (A) Provided receptacle cover.

  3. Insert the receptacle into bracket (9), secure using nut (4) and washer (10). Install provided cover (A) on to the receptacle.

Connecting the Harness

  1. Locate the RL-C19 connector inside the left rear tower. Remove the cap seal from the RL-C19 connector and discard the cap seal.


    Illustration 4g03415883
    (7) 356-6115 Work Tool Harness As
    (B) TC-1 Connector
    (C) RL-C19 Connector

  2. Connect the TC-1 Connector (B) on harness (7) to the RL-C19 Connector (C). Refer to Table 3 for correct connector configuration.


    Illustration 5g03419709
    (13) 7P-1695 Washer For use on the 272D, and 299D models only.
    (14) 8T-4121 Hard Washer
    (15) 8T-4133 Nut

  3. Secure the ground terminal to the ground stud located in the left rear tower. Use washer (13) or (14) and nut (15) to secure the ground terminal. Tighten the nut to a torque of 30 ± 7 N·m (22 ± 5 lb ft).

Securing the Harness on ARC Machine



    Illustration 6g03415922
    (5) 178-3620 Strap

  1. Use one strap (5) to secure harness (7), to the weld link on the bottom of the left lift arm.


    Illustration 7g03415921
    (5) 178-3620 Strap
    (D) Auxiliary Hose

  2. Use three straps (5) and secure the harness to auxiliary hose (D).


    Illustration 8g03415920
    (5) 178-3620 Strap

  3. Using one strap (5) secure the harness to the auxiliary hose inside the left rear tower.

    Note: Ensure that there is sufficient slack to allow for free movement at the pivot point.

    Note: Store all excess harness length in the arm. Coil and secure the harness with a strap.

Securing the Harness on Extended Arm Machine



    Illustration 9g03415923
    (5) 178-3620 Strap
    (1) 7K-1181 Cable Strap

  1. Using one strap (1), secure the Harness to the weld link on the Lift Arm.

  2. Using one strap (5), secure the harness to the tube at the bottom of the lift arm.


    Illustration 10g03415925
    (5) 178-3620 Strap

  3. Using one strap (5), secure the harness to the hose. Refer to Illustration 10 for location.


    Illustration 11g03416566
    (5) 178-3620 Strap

  4. Using two straps (5), secure the harness to the hose at the pivot point.


    Illustration 12g03416568
    (5) 178-3620 Strap

  5. Using two straps (5), secure the harness inside the left rear tower.

    Note: Coil and secure any excess harness inside the left rear tower.

Installing the Work Tool Rocker Switch



    Illustration 13g03416620
    (6) 263-5418 Rocker Switch

  1. Release the tabs on the switch cover on the left-hand console. Remove the switch cover.

  2. Remove the plug from the switch cover from the position shown in Illustration 13.

  3. Install switch (6) into the opening in the switch cover. Press switch in until all tabs are fully engaged.

  4. Inside the console, locate the LC-8 connector on the 378-1026 Panel Harness As and connect the connector to the switch installed in Step 3. Refer to Table 4 to confirm the correct connector configuration.

  5. Reinstall the switch cover onto the left-hand console.

Installing the Relays

  1. Locate the fuse panel in the rear of the cab at the right-hand side.


    Illustration 14g03416627
    (3) 146-9439 Relay As

  2. Install the five relays (3) into positions "R1" through "R5" on the upper fuse block.

Removing the Current Left Hand Joystick

Note: Retain hardware for reuse in the installation of the new joystick controller.



    Illustration 15g03416625
    Console Cover on mechanical seat.


    Illustration 16g03416633
    Console Cover on air ride seat.

  1. Remove the two screws from the outside Console Cover.


    Illustration 17g03416634
    Console Cover on mechanical seat.


    Illustration 18g03417169
    Console Cover on air ride seat.

  2. Remove the four screws from the inside Console Cover.


    Illustration 19g03417297

  3. Remove the console covers from the seat.

    Note: Do Not use any type of prying tools to remove the covers as tools may damage the covers.



    Illustration 20g03417298

  4. Raise the 217-9053 Boot from the current joystick.


    Illustration 21g03417300

  5. Remove the four bolts securing the joystick to the armrest. Remove straps retaining the connector to the joystick harness, if necessary. Disconnect the harness.

Installing the New 379-1615 Joystick Control Gp

  1. Connect the joystick 12-pin connector to the CH-C4 connector on the seat desk harness. Connect the joystick 6-pin connector to the CH-C5 connector of the seat deck harness. Refer to Table 5 and 6 to confirm the correct connector configuration.

  2. Secure the connectors by using two straps (12).

  3. Secure joystick (8) to the armrest using four bolts (2). Tighten the bolts to a torque of 6 ± 1 N·m (53 ± 9 lb in)

  4. Return boot to original position.

  5. Reinstall covers onto the left armrest.

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