Stop plugging ahead.
That's because crewmen can't lube the arms when there are no grease fittings. With no grease, the bearings burn out. It's that simple.
So pull the plugs and put in a safety relief valve, NSN 4820-01-070-7670, and grease fitting, NSN 4730-00-050-4208. whenever you put on a new roadwheel arm.
By the way, don't be fooled by the roadwheel arms on M113A3s. The threads are recessed in a larger hole, but they still take the same relief valve and grease fitting as other M113-series vehicles. The larger hole is there to protect the fittings from damage.
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|Title Annotation:||M113-Series FOV ...|
|Publication:||PS, the Preventive Maintenance Monthly|
|Article Type:||Brief Article|
|Date:||Feb 1, 2005|
|Previous Article:||Pin problems?|
|Next Article:||Quick checks generate results.|
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