The JR Propo JRSC8101 case set is supplied as an aftermarket housing to replace worn or damaged shells on the listed JR Propo servos. It is designed for use in hobby radio-controlled models and to simplify repairs.
Fit this case when the original housing is cracked or to gain access for inspection of the internal geartrain and electronics. The replacement preserves mounting geometry so no chassis modification is required for refit.
Installation notes: remove the servo from the model, move the internals into the new housing, confirm shaft and tab alignment, then reassemble and run a bench test. Keep internal parts oriented as originally fitted and verify all fasteners are secure after reassembly.
Tuning and service role: restoring a correct case maintains internal alignment that influences centring and repeatability, and it streamlines routine maintenance tasks like gear checks and bearing inspection.
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