Cab Heater Hoses May Rub Against the Cross Member on Certain PL61 Pipelayers {7304} Caterpillar


Cab Heater Hoses May Rub Against the Cross Member on Certain PL61 Pipelayers {7304}

Usage:

PL61 WGS
Pipelayer
PL61 (S/N: WGS542-UP)

Reference: Disassembly and Assembly Manual , "Cab Floor Plate-Remove and install".

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

The cab 437-1974 Heater Lines Gp may rub against the 290-1546 Plate on certain PL61 Pipelayers.

Solution

Caterpillar is aware of this problem and is recommending the following interim corrective solution.

Table 1
Required Parts 
Item  Qty  Part Number  Description 
130-2531  Bracket As 
8T-4137  Bolt 
8T-4121  Hard Washer 
8T-4136  Bolt 
4S-1962  Clip 
6V-1228  Clip 
204-2281  Cable Strap 
200-6345  Mount 

Rework Procedure



    Illustration 1g06131646
    (A) Cross member
    (B) Heater hoses

  1. Remove the cab floor plate to access to the cab 437-1974 Heater Lines Gp (B).

    Note: Inspect hoses for leaks in the area of contact with 290-1546 Plate (A).

  2. If hoses have been damaged against the 290-1546 Plate (A), replace 437-1974 Heater Lines Gp (B) with the same part number.


    Illustration 2g06132205
    Left Hand Side
    (1) 130-2531 Bracket As
    (2) 8T-4137 Bolt
    (3) 8T-4121 Hard Washer
    (4) 8T-4136 Bolt
    (5) 4S-1962 Clip

  3. For the Left Hand side heater hose, install 437-1974 Heater Lines Gp (B) by using one 130-2531 Bracket As (1) , one 8T-4137 Bolt (2), one 8T-4121 Hard Washer (3), one 8T-4136 Bolt (4), and one 4S-1962 Clip (5).

    Note: Both 130-2531 Bracket As need to be installed using two threaded holes drilled on the chassis horizontal beam.



    Illustration 3g06132206
    Right Hand Side
    (1) 130-2531 Bracket As
    (2) 8T-4137 Bolt
    (3) 8T-4121 Hard Washer
    (4) 8T-4136 Bolt
    (6) 6V-1228 Clip
    (7) 204-2281 Cable Strap
    (8) 200-6345 Mount

  4. For the Right Hand side heater hose, install 437-1974 Heater Lines Gp (B) underneath the battery cable, by using one 130-2531 Bracket As (1) , one 8T-4137 Bolt (2), one 8T-4121 Hard Washer (3), one 8T-4136 Bolt (4), one 6V-1228 Clip (6), two 204-2281 Cable Strap (7) and one 200-6345 Mount (8).

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