TM 55-1930-209-14&P-19 Table 2-4.  Preventive Maintenance Checks and Services for Handling Equipment (Continued) B - Before D - Daily Q -  Quarterly D - During W - Weekly S -  Semiannually A - After M - Monthly A -  Annually INTERVAL ITEM PROCEDURES EQUIPMENT ITEM TO BE CHECK FOR AND HAVE IS NOT READY/ NO. INSPECTED REPAIRED OR ADJUSTED AVAILABLE IF B   D   A   D  W  M   Q   S   A AS NECESSARY f. Check hook for free swivel movement. Adjust or repair as necessary. g.   Inspect load chain for lubrication, wear, Load chain dam- damaged links, or foreign matter.  Lubri- aged. cate, clean or repair as necessary. h.   Check hook block for damage, rust, or Hook block dam- corrosion.  Clean as required. aged. i. Inspect trolley track wheels for external Tread and flange wear on the tread and flange. Repair as excessively worn. necessary. j. Inspect chain guides for wear or burring Chain guides show where chain enters hoist. Replace severe wear or severely worn guides. burring. NOTE Lubricant Location Instructions NLGI No. 2 Grease Fittings on chain sheave Annually or as required. pins (roller bearings) * Trolley wheels After prolonged use or at reassembly Pawl Stud Coat lightly at reassembly Brake square thread Coat lightly at reassembly NLGI No. 2 with Gears After prolonged use or at E.P. additive reassembly Intermediate oils Chain Immerse in container or preferably with swab with oil soaked rag. E.P. additives Wipe off excess oil.  Should maintain chain rust free. Bonded lubricants Chain Use in place of oil, if oil (similar to Dow residues are objectionable. Molykote M-88) * Not required on units equipped with sealed ball bearings.  (Wheels will not have grease fittings. See also service lubrication specifications contained in MIL-L-2104 and MIL-L-46152) 13-13