Installing the Conversion Harness for Non-Cat Hydromechanical (Simple) Work Tools {1408} Caterpillar

Compact Track Loader

239D (S/N: CD41-UP; BL91-UP; T9S1-UP)

249D (S/N: AH91-UP; D9E1-UP; GWR1-UP)

259D (S/N: LW51-UP; FTK1-UP; GTK1-UP; FTL1-UP)

279D (S/N: TP51-UP; WEF1-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

226D (S/N: HR61-UP; HRD1-UP)

232D (S/N: EH21-UP; KXC1-UP; DPR1-UP)

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

This Special Instruction outlines the use of a jumper harness to attach work tools equipped with a 14-pin connector and requiring 5 or fewer auxiliary electrical outputs to the host machine. For work tools equipped with a 7-pin connector or requiring 6 auxiliary electrical outputs, refer to M0075056, "Installing the Conversion Harness for non-Cat Hydromechanical (Complex) Work Tools".

Do not perform any procedure in this Special Instruction until you have read the information and you understand the information.

Safety Section

Do not perform any procedure in this special instruction until you have read this special instruction and you understand this information. Use only proper tools and observe all precautions that pertain to the use of those tools. Failure to follow these procedures can result in personal injury. Observe the following procedures.

Work safely. Most accidents that involve product operation, maintenance, and repair are caused by failure to observe basic safety rules or precautions. An accident can often be avoided by recognizing potentially hazardous situations before an accident occurs.

A person must be alert to potential hazards. This person should also have the necessary training, skills, and tools to perform these functions properly.

Safety precautions and warnings are provided in this instruction and on the product. If these hazard warnings are not heeded, bodily injury or death could occur to you or to other persons. Caterpillar cannot anticipate every possible circumstance that might involve a potential hazard.

Therefore, the warnings in this publication and the warnings that are on the product are not all inclusive.

Illustration 1	g00104545

Prevent the machine from movement. Park the machine on a level surface.

Attach a "Do Not Operate" warning tag or a similar warning tag to the start switch or to the controls before you service the equipment . These warning tags (Special Instruction, SEHS7332) are available from your Caterpillar dealer.

Required Parts

For machines not equipped with a work tool electrical connector, more parts will be required. Refer to one of the following publications:

• Special Instruction, REHS7806, "Installing the 388-8265 Work Tool Electrical Harness Kit".

• Special Instruction, REHS7814, "Installing the 388-8273 Work Tool Electrical Harness with Left-Hand Joystick".

Installation Procedure

1. Slide the Sleeve (3) over the Harness As (1) and position the sleeve temporarily near the existing plug assembly.

2. Determine which cab controls you want to energize the control solenoids on the work tool. In case D-Series machine has no work tool harness, Refer to Table 3 for the machine configuration and the part numbers that need to be ordered.
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   Table 3

   Sales Model	Performance Package and Controls	Joysticks		14 pins Electric harness	Part Number
   		Right-hand 2 button + thumb wheel	Left-hand 4 button
   226D, 232D, 239D, and 249D	H1/H2 ON/OFF	N/A	N/A	N/A	421-0265 Work Tool Wiring Kit and 273-9104 Handle Control Gp
   	H1/H2 Prop.	N/A	Included	N/A	421-0261 Work Tool Wiring Kit and 273-9104 Handle Control Gp
   	H1/H2 Prop. Work Tool	N/A	Included	Included	273-9104 Handle Control Gp
   	H3 Prop. Work Tool	Included	Included	Included	-
   236D, 242D, 246D, 257D, 259D, 262D272D, 277D, 277D, 279D, 287D, 257D,289D, 297D2, 299D2	H1/H2 ON/OFF	N/A	N/A	N/A	388-8273 Work Tool Wiring Kit and 273-9104 Handle Control Gp
   	H1/H2 Prop.	N/A	Included	N/A	388-8265 Work Tool Wiring Kit and 273-9104 Handle Control Gp
   	H1/H2 Prop. Work Tool	N/A	Included	Included	273-9104 Handle Control Gp
   	H3 Prop. Work Tool	Included	Included	Included	-
   272D2 XHP, 297D2 XHP, and 299D2 XHP	H3 Prop. Work Tool	Included	Included	Included	-

3. Insert the appropriate pins from the Harness As. (1) into the Receptacle As. (2). The pins are labeled in accordance with the configuration Table 4.
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   Table 4

   Work Tool Electrical Connector Configuration (Pin Outs)
   14–Pin Position(1)	Machine Signal	Wire Label-Wire Number	Wire Color
   A	LH Joystick Trigger (AUX 7)	"A-WT1"	Purple
   B	Ground	"B-WT2"	Black
   C	RH Joystick "C-" (AUX 3)	"C-WT3"	Orange
   D	RH Joystick "C+" (AUX 4)	"D-WT4"	Brown
   E	LH Joystick "C2" (AUX 5)	"E-WT5"	Gray
   F	LH Joystick "C1" (AUX 5)	"F-WT6"	Blue
   G	Unused	"F-WT7"	White
   H	Unused	"G-WT8"	White
   J	Cab Rocker Switch (AUX 8)	"H-WT9"	Pink
   K	Unused	"K-WT10"	Blue
   L	Unused	"L-WT11"	White
   M	XHP High Flow WT Present Signal	"M-WT12"	White
   N	Unused	"N-WT13"	Green
   P	Unused	"P-WT15"	White

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   (1)	Machine Side

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   Illustration 2	g06123877
   Left-hand joystick work tool electrical controls (A) aux 7 Pin A (E) "C2"aux 5 Pin E (F) "C1"aux 6 Pin F

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   Illustration 3	g06123885
   Right-hand joystick work tool electrical controls (C) "C+"aux 4 Pin C (D) "C-"aux 3 Pin D

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   Illustration 4	g06123870
   Cab upper left-hand switch panel (J) aux 8 Pin J

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   Illustration 5	g06123890
   Work tool electrical connector - socket identification

4. Refer to Illustrations 2, 3, 4, and 5 to identify the available machine electrical output controls.

5. Remove the wire labels & position the Sleeve (3) near the Receptacle As. (2) and tighten the screws of the cable clamp securely, capturing the sleeve.

6. Further secure the Sleeve (3) with the Cable Strap (4) at the loose end of the sleeve and midpoint and clip the excess strap material.

7. Install the jumper harness between the host machine work tool electrical connector and the work tool harness electrical connector.

   Refer to the machine and work tool Operation and Maintenance Manuals for complete operation & safety information before operating the work tool.