TM 5-6675-330-12&PSECTION IVMAINTENANCEPackagingThe instrument is packaged in a molded carryingcase with foam inserts. [See Figure 3). Pack theequipment in the carrying cases when it is not in use.TransportationThe carrying case has been designed to minimize thepossibility of damage to the instrument and theaccessories when they are being transported. Makesure that all equipment is properly packed in thecarrying case. Protect the equipment from shock andvibration to the maximum extent possible while it isbeing transported.ShipmentPackaging for shipment requires special attentionbecause shipped items may be handled roughly.When shipping the instrument to an authorizedservice center for repair, ship only the instrument in itscarrying case.The carrying case is not a shipping containerEnsure that the carrying case is packagedadequately for shipment to prevent damage.Lens CareUse care when cleaning dust or moisture from lenses.Do not touch with fingers or use coarse cloth, paper,or other material that might scratch the lenses. Tissue,or a camel’s hair brush may be used. Although rarelyrequired, mild soap and water solutions may be usedsafely for the removal of fingerprints.CondensationCondensation of moisture on the instrument lensescan occur when the instrument is taken from a coldenvironment to a warm environment, such as fromoutdoors to indoors. It is recommended that theinstrument be left in its carrying case for several hoursunder such conditions to allow for a gradualt e m p e r a t u r e c h a n g e . Retro-Reflector Prism CareThe retro-reflector prisms are high-quality opticalprisms, and should be given the same care asrecommended for lenses.LubricationThe threads of the yoke tangent and locking screwsare the only items that may require lubrication.Application of a small amount of dry lubricant (suchas graphite) to the threads will be sufficient in mostc a s e s .26
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