2009/06/01 The Assembly Process for the Front Axle Mount is Now Improved {3258, 3260} Caterpillar

The Assembly Process for the Front Axle Mount is Now Improved {3258, 3260}

2009/06/01 [SEPD0994]

2009/06/01 Correction to System Operation Testing and Adjusting , "Piston Pump (Hydraulic Fan) Pressure - Test and Adjust" {5070}

2009/06/01 Correction to Disassembly and Assembly , "Differential and Bevel Gear (Front) - Install" {3256, 3258}

POWER TRAIN

AXLE GP

2009/06/01 The Assembly Process for the Front Axle Mount is Now Improved {3258, 3260}

Underground Articulated Truck:
AD55 (S/N: ANW1-UP; DNW1-UP)
AD55B (S/N: JNW1-141)

Description of Change: Thread lock compound is now applied to each bolt before assembly. The thread lock compound will prevent the bolts from loosening.

Adaptable To: Use the following procedure for the affected machines. Refer to Table 1.

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Table 1
Affected Machines
Model	Affected Serial Numbers	Effective Serial Numbers
AD55	S/N:ANW1-UP
	S/N:DNW1-UP
	S/N:JNW1-141
AD55B		S/N:JNW142-UP

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Table 2
Parts Required
Qty	Part Number	Part Description
4	152-1351	Bolt
4	8C-3236	Bolt
4	8T-1583	Nut
4	8T-5065	Locknut
12	9X-8399	Washer

Note: Cleanliness is an important factor. Before you begin the removal procedure, the exterior of the components should be thoroughly cleaned.

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Illustration 1	g01934453
(1) Mount (2) 8T-5065 Locknut (3) 152-1351 Bolt (4) 8C-3236 Bolt

Apply 169-5464 Quick Cure Primer and then apply 155-0695 Thread Lock Compound to the threads of four bolts (3) and four bolts (4). Install four bolts (3) and four bolts (4). Tighten four bolts (3) and four bolts (4) to a torque of 1800 ± 200 N·m (1330 ± 150 lb ft).