E SeriesBackhoe Loader Stabilizer Cylinder Drift{5468} Caterpillar

Backhoe Loader:

416 Series E (S/N: LMS1-UP; CBD6854-UP)

420 Series E (S/N: DJL1-UP; DAN1-UP)

430 Series E (S/N: MXB1-UP; SWC1-UP)

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

Illustration 1	g02550502
Area to be inspected

Illustration 2	g02550676
Area to be inspected

Product Distribution Centers and dealers report stabilizer drift, when the cylinders are disassembled. The 4J-0526 O-Ring Seal is damaged during disassembly.

Solution

If stabilizer drift is detected and the cylinder has been determined to be the root cause, the cylinder is to be disassembled. Inspect the piston seals and bore. If no obvious damage is found, remove the piston from the rod and inspect 4J-0526 O-Ring Seal for damage. Replace with like part. Inspect rod end for burrs or sharp edges. Remove as necessary. Lubricate 4J-0526 O-Ring Seal on piston prior to reassembly onto rod. Lubricate all seals on piston prior to inserting piston into cylinder bore. Be sure not to lubricate the threads on the piston or rod.