Tail Rotor Driveshaft Hanger

BHT-212-CR&0blow or pressure or rollers skidding instead ofrolling.0O)-a.E05. Perform magnetic particle inspection ofpinion (25) and couplings (10 and 11) (BHT-ALL-SPM).O(76. Perform fluorescent penetrant inspectionof sleeve (18) (BHT-ALL-SPM).(DD0cause the indicating dots to turnblack.4. Inspect outer coupling (11, figure 65-10)temperature indicator "TEMP-PLATES" forevidence of overtemperature indication. Ifovertemperature indication is noted, performc00C),0coupling overtemperature inspection asfollows:@')a.NOTEInspect outer coupling cadmium platingfor being discolored (circumferential tan orlight brown band) or blistered .If steps 1. through 5. reveal cracks If cadmiumor distortion indicative of excessive plate discoloration or blistering is found,loads, quill shall be considered replace outer coupling and inner coupling.unserviceable and nonreparable.b. Inspect gear teeth of outer coupling(OD0-tix?'7. Accomplish Normal Inspection(paragraph 65-26).65-26. Normal Inspection001. Inspect parts dimensionally and replaceparts that do not fall within inspection limits(figure 65-11).NOTEWear limits are provided to showrequired fit between mating parts. Itis not intended all dimensions bechecked as prescribed overhaulprocedure. However, parts exhibitingevidence of wear or physicaldamage shall be checkeddimensionally.2. Inspect pinion (25, figure 65-10) splinesfor chipped, broken or worn teeth.3. Inspect pinion (25) teeth for excessivewear, scoring, scuffing, and wear pattern(figure 65-12).NOTEOvertemperature indicator dots ontemperature indicator "TEMP-PLATES" are of a white or light graycolor and turn black when exposedto an overtemperature condition.Chemical contamination can also' 65-00-00Page 30 Rev.4(Q`L^0 ()= 0°a0^(n-:3or'X(cc(Q0a`.Land inner coupling for being discolored03.0a=) a°0c(brown or blue) in the normally bright contactpatterns. If discoloration is found, replaceouter coupling and inner coupling.C. Inspect outer coupling and innercoupling under 5x to 10x magnification forteeth exhibiting signs of metal smearing ortearing in the contact patterns. If smearing or0)O)0tearing is found, replace outer coupling andinner coupling.d. Inspect grease from couplings forbeing very viscous (thick) and having a strongpungent odor. If grease is found to be viscous(thick) and having a strong pungent odor,replace outer coupling and inner coupling.NOTEIf TEMP-PLATES are to be replaced,replace "TEMP-PLATES "aftercompleting entire inspection andrepair procedures and couplingshave been determined serviceableand prior to assembly.4A. Inspect outer coupling (11) temperatureindicator "TEMP-PLATES" for deterioration,debonding or discoloration of epoxy coatingthat prevents interpretation of indicating dots.If deterioration, debonding, or discoloration ofepoxy is found, replace "TEMP-PLATES" inaccordance with paragraph 65-9A.5. Inspect couplings (10 and 11).5.0