Rework Procedure for the Gas Spring Assembly of Hood Group for Certain 318D2, 320D2, 323D2, 326D2, 329D2, and 330D2 Excavators {7251, 7276} Caterpillar

Rework Procedure for the Gas Spring Assembly of Hood Group for Certain 318D2, 320D2, 323D2, 326D2, 329D2, and 330D2 Excavators {7251, 7276} [M0065744]

FRAME AND BODY

ENCLOSURE GP

Rework Procedure for the Gas Spring Assembly of Hood Group for Certain 318D2, 320D2, 323D2, 326D2, 329D2, and 330D2 Excavators {7251, 7276}

1.1. Introduction

2.1. Problem

3.1. Solution

4.2. Required Parts

5.2. Rework Procedure

Excavator
318D2 (S/N: JEB1-131; HAH1-189; XAH1-331; DPJ1-161; TZS1-487; XGS1-303)
320D2 (S/N: GBA1-1944; LCA1-750; LMA1-952; XBA1-UP; YEA1-612; YGA1-UP; XBB1-UP; YBE1-UP; NBF1-342; WBF1-272; ESG1-UP; DGH1-UP; NBH1-165; ZBH1-153; MDJ1-421; WDJ1-UP; FKK1-360; XAK1-232; EAL1-UP; TTL1-UP; DFM1-1272; HDM1-265; JFM1-1507; STN1-UP; TDN1-621; DNP1-801; RAR1-1192; DNS1-UP; ZCS1-1532; EKT1-174; NBT1-1063; RDZ1-UP; SDZ1-434; TDZ1-UP)
323D2 (S/N: FLC1-UP; KCE1-426; JEG1-257; HCM1-UP; PJP1-1331; TDT1-101; KBX1-159)
326D2 (S/N: REC1-205; MZH1-UP; XAM1-261; MGW242-313; KGY162-323)
329D2 (S/N: RGA194-309; SHJ1-190; TMJ1-376; THW1-511)
330D2 (S/N: ZBF1-201; YBG1-UP; SZK1-198)

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 gas spring assembly interferes with the bracket of the hood group.

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Illustration 1	g06011259
Location of the Gas Spring Assembly (1) Bracket (2) Gas spring assembly

Solution

The addition of two spacers and removing part of the bracket will prevent interference.

Determine which type of gas spring assembly is used on the machine. Gas spring assembly (3) requires performing the rework procedure. Gas spring assembly (4) does not require the rework procedure. Refer to Illustration 2 to identify gas spring assembly used.

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Illustration 2	g06011566
(3) Square shaped flat surface (4) Round shaped flat surface

Required Parts

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Table 1
New Part Number	Description	Qty
8T-4224	Hard Washer	2

Rework Procedure

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Illustration 3	g06011318
Bracket Before Cutting (A) 23 mm (0.9 inch) (B) 28 mm (1.1 inch) (C) 272 mm (10.7 inch) (D) 22 mm (0.9 inch) (E) 3 mm (0.1 inch) (F) Diameter of 10 mm (0.4 inch) (G) 10 mm (0.4 inch) (H) 5 mm (0.2 inch) at 45°

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Illustration 4	g06011366
Bracket After Cutting (J) 77 mm (3.0 inch) (K) 96.3 mm (3.8 inch) (L) 162 mm (64 inch) (M) Radius of 5 mm (0.2 inch) (N) 17.9 mm (0.7 inch) (P) 11.4 mm (0.4 inch) (R) 4.6 mm (0.2 inch)

If the machine is a 326D2, 329D2, or 330D2, cut bracket (1) of the hood group. Refer to Illustrations 3 and 4 for the dimensions.
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Illustration 5 g06011606

(1) Bracket
(2) Gas spring assembly
(5) Hood group
(6) Stopper
(7) Two 8T-4224 Hard Washers
(8) Nut
Install two 8T-4224 Hard Washers (7) between bracket (1) of hood group (5) and stopper (6) of gas spring assembly (2). Tighten nut (8) to a torque of 12.5 ± 2.5 N·m (9.22 ± 1.84 lb ft).