Generator Wiring May Be Installed Incorrectly on MH3037, MH3049, and MH3059 Material Handlers{1408} Caterpillar


Generator Wiring May Be Installed Incorrectly on MH3037, MH3049, and MH3059 Material Handlers{1408}

Usage:

MH3049 HPB
Material Handler:
MH3037 (S/N: KPM1-208)
MH3049 (S/N: HPB1-234)
MH3059 (S/N: RBR1-215)

Introduction

The problem that is identified below does not have a known permanent solution. Until a permanent solution is known, use the solution that is identified below.

Problem

Machines listed above equipped with a generator may have the wiring in the electrical box on the generator wired incorrectly.

Solution

The wiring in the electrical box should be checked to verify correct wiring connections for proper polarity during generator operation. The following connections are how the generator wires should be connected to the harness wires in the electrical box on the generator.

Table 1
Generator Wiring Connections    
Item     Wire Code         Item     Wire Code    
(1)     "F1" (gray) wire     Connects to     (2)     "F1" (blue) wires    
(3)     "F2" (gray) wire     Connects to     (4)     "F2" (red) wires    
(5)     "P1" (gray) wire     Connects to     (6)     "P1" (white) wire    
(7)     "P2" (gray) wire     Connects to     (8)     "P2" (green) wire    
(9)     "A2" (black) wire     Connects to     (10)     "S2" (black) wire    
(11)     "A1" (black) wire     Connects to     (12)     Positive (black w/red) wire    
(13)     "S1" (black) wire     Connects to     (14)     Negative (black w/black) wire    



Illustration 1g03674467

(1) "F1" (gray) wire

(2) "F1" (blue) wires

(3) "F2" (gray) wire

(4) "F2" (red) wires

(5) "P1" (gray) wire

(6) "P1" (white) wire

(7) "P2" (gray) wire

(8) "P2" (green) wire

(9) "A2" (black) wire

(10) "S2" (black) wire

(11) "A1" (black) wire

(12) Positive (black w/red) wire

(13) "S1" (black) wire

(14) Negative (black w/black) wire

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