Argo All 6X6, Service Manual

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Transmission Argo Service Manual
TR-16
Inspect all transmission components and look for: Broken or badly worn teeth
• worn out or seized up bearings
• badly worn spline shafts
• cracks in the transmission housing or cover
• cracks in aluminum differential cage
IMPORTANT
Lack of lubrication, wrong type of lubrication or transmission overheating may
cause excessive wear or damage to transmission gears. When inspecting gears, fol-
low these guidelines.
Normal Wear
As gears operate, the meshing operation and oil wash will polish the gear teeth,
removing any sharp edges, imperfections or shards. The polished surface should cover
the entire length and depth of the teeth. Well lubricated gears will show this condition
after many hours of operation.
The initial 25 hrs of operation on a new transmission will indicate this process when the
oil is changed for the first time. The oil will appear very silvery and fine metal filings
will be noticeable on the drain plug's magnet.
Abrasive Wear and Scratching
Metal particles which flake off gears, shafts and castings are carried in the lubricant
and can cause uneven and premature wear to gear teeth. Thorough cleaning of all
components at disassembly and fresh transmission oil can normally prevent further wear
of this kind.
Breakage
Any gear or spline shaft with cracked, broken or missing teeth should be replaced
immediately. The installation of a badly damaged gear or shaft will lead to premature
wear of other components and other potential breakdowns.
Replace all badly worn, broken or missing components immediately with genuine
ARGO replacement parts.
If there is any doubt as to whether the transmission component needs replacing,
generally the best thing to do is to replace it while the job is at hand.
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