WORK STAND ASSEMBLIES

Transcription

1 T.0.35A HANDBOOK OPERATION, SERVICE AND REPAIR INSTRUCTIONS WORK STAND ASSEMBLIES MODEL NO. 30 STOCK NO AIR LOGISTICS CORPORATION 4 E. RAILROAD AVE. MONROVIA, CA THIS PUBLICATION REPLACES T.0.35A4-3-7-DATED5 JUNE 959 ORIGINALLY ISSUED 5 FEBRUARY 959

2 Section II Rail Height... adjustable from 30 to 39 inches Folded Dimensions x x 7.50 inches Weight. '.. pounds MODEL 30: Load Limit. 0,000 pounds Rail Length... 5 inches Rail Width (center to center) inches Rail Height. Folded Dimensions.. Weight..... fixed height adjustment at 30.00, 3.50, 33.00, 34.50, 3.00, and inches with additional ±.5 inch screw adjustment at foot x 55.oo x 0.00 inches pounds SECTION II OPERATION AND SERVICE -. PREPARATION FOR USE. -. Remove crate, if crated, and secure legs of Models 3_00, 300A and 300B by swinging leg assemblies into position and securing brace and attaching hardware. Model 30 is folded in pantograph fashion. Swing rails apart and secure the position with the clamps provided. -3. OPERATION. (See figurts - and -.) -4. FOLDING OPERATIONS. (Ste figurt -.) -5. Mo4els 300, 300A and 300B are folded by removing one end of braces ( ) and folding the legs tow~d the center as illustrated in figure -la. -. Model 30 is folded in pantograph fashion. When damps () have been loosened and dropped dear of rails the work stand can be collapsed as illustrated io figure -Ib. -7. HEIGHT ADJUSTMENT. -8. The height of all work stands co:vered in this hand. book, except Model 300 which is a fixed height, is ad. justable by means of a screw type foot assembly or.a telescoping leg assembly, or both. -9. POSITIONING OF OUTBOARD LEG ASSEMBLIES, MODEL 30. (Su figurt -.) -0. Leg assemblies are positioned as follows: a. Loosen damps () aod drop dear of rails (). b. Remove nut (3) and bolt ( 4) and drop leg assembly free of rails. c. ~nstall the leg assemblies at t!ither of the two loca- tions provided on rails aod secure.. with out (3), bolt (4) and damps (). -. LOAD TRANSFER. (Ste figure -3.) B Figure -. Folding Ope rations

3 Sedion II -5. Lubricate all swivel joints and caster bearings with general purpose grease, Specification MIL-G-78 as required. -. PERIODIC INSPECTION. -7. Conduct quarterly inspection as follows: a. Check for proper adapter stop action. b. Model 300B shall be inspected for proper castering action. _ c. Check for condition and tightness of all hardware. d. Check couplings for evidence of fracture. e. Inspect all welds for fracture. f. Inspect rails, leg assemblies and bracing for distortion. -8. TROUBLE SHOOTING. (See Table.) 4. Clamp. Rail 3. Nu 4. Boh Figure -. Positioning of Outboard l eg Assemblies, Mod el Coupling assemblies ( ) are secured to coupling ssemblies of associated equipment by means of quick elease pins (). :-3. When transferring the load onto the Work Stand,.dapter stops (3) must be pulled down to permit the oad supporting roller adapters ( 4) to pass over. ~-4. PERIODIC LUBRICATION. ~I I. Coupling. Quick Release Pin Figure Adaper Sop 4. Roller Adaper Load Transfer Operation TABLE I. TROUBLE SHOOTING TROUBLE Improper adapter stop action Improper castering (Model 300B only) Work Stand twisted or uostable PROBABLE CAUSE Broken stop pin spring burred or distorted stop pin Lack of lubrication of caster or swivel joint Obstruction in caster or swivel assembly Damaged caster Improper foot adjustment Distorted raµs or leg assemblies Fractured welds Loose attaching hardware REMEDY Replace stop pin spring Straighten or remove burrs Lubricate as necessary Remove obstruction Replace caster Correct foot adjustment Straighten or replace with new Repair welds Tighten attaching hardware

4 r ~~ ~- 3 ' a r- - ~- Ii : - I ~ ~ 34 \-=>- 7 ' ~~ I ;: ii Li~ Figure 3. Work-Stand Assembly, Model 30-3 Se.cfion II Group Assembly Parts list [pdex No. Fig. a:nd p,,,, No Description Units per Assy Usab/.e on Code MS034-48C 3 AN4-A AN35-8 AN9(,) No Number MS034-C - 0 AN90 AN3-4A l.'> HS AN4-3A - AN90-5 L AN i80-3 AN STAND ASSEMBLY, Work, Model 30 FRAME ASSEMBLY. NUT --4-()-- CLAMP.... NUT W.ASHER <>-- RAIL.ASSEMBLY (See figure 5) FOOT ASSEMBLY.... NUT WASHER, Clevis <>-- BASE, Foot (ATTACHING PARTS) NUT, Barrel (79-)..,. RETAINER, Nut (84). WASHER. ---<>-- BEARING SCREW LEG. NAMEPLATE (ATTACHING PARTS) SCREW, Drive -----<>-- PLACARD. SCREW, Drive ---<>-- Ref G..

5 Section II Group Assembly Parts List Figure 5. Rail As~mbly, Model 30 Fig. md lnd~x No. Par/ No Durription UniJs per Assy Usabk on Cod~ 5 No Number - ' M_.St ~ 5 MSL AN-7A 8 AN-A 9 BL-STS S COMM 8 -C AN-7A 5 AN- A RAIL ASSEMBLY (See figure 3-8 for next higher assy) ROLLPIN. PIN, Guide. SPRING PIN, Adapter stop ROLLPIN. PIN, R:Lil indexing COUPLING ASSEMBLY, Female. (ATIACHING PARTS) -0-- PIN, Quick release (97978) (ATIACHING PAR.i'S) CA.BLE ASSEMBLY.. :..... CABLE, o.o x 3.50 lg 7 x 7 flex stainless steel SLEEVE (79) COUPLING, Female COUPLING, Male (ATIACHING PARTS) -<>-- RAIL ASSEMBLY Ref ) - G

6 Section Ill SECTION Ill REPAIR INSTRUCTIONS 3. DISASSEMBLY. (See figures 3- through 3-7.) 3-. Disassembly of the Work Stands is in the order of index numbers assigned to the illustrations applicable to the Work Stand being serviced. Specification P-S-. Dry all parts thoroughly making certain all repaired areas are free of abrasive residue. When separating rails from leg assemblies do not allow rails or leg assemblies to drop as a sharp blow may result in distortion INSPECTION, REPAIR AND REPLACEMENT OF PARTS. (See paragraph -, Periodic Inspection and Table I, Trouble Shooting.) 3-4. Repair of Work Stand is as follows: a. Repair fractured welds.. b. Bent components may be straightened, if straightening results in distortion and misalignment of rails, replace damaged parts with new. c. Minor thread damage may be repaired with a fine file. If thread repair results in a loose fit, replace damaged parts with new. d. Repair of caster assemblies is not practicable, if damaged replace with new. e. Replace all sheared, distorted or otherwise mutilated hardware C LEANING. 3-. Clean all parts m dry cleaning solvent, Federal When using dry cleaning solvent, Federal Specification P-S-, take care not to inhale fumes for prolonged periods LUBRICATION Lubricate all hinge points, swivel joints and casters with general purpose grease, Specification MIL-G-78 as required REASSEMBLY. (See figures 3- through 3-7.) 3-0. Reassemble in the reverse order of index numbers assigned to the applicable exploded view illustration, paying particular attention to the following: a. Make certain coupling assemblies are properly located on rail ends as noted in disassembly. b. Make certain all attaching hardware is properly located and is secure. 3-. INSPECTION AFTER REASSEMBLY. 3-. When Work Stands have been reassembled inspect as follows: a. Make certain adapter stop assemblies are operating properly. b. Check for proper castering action on Model 300B. c. Make certain all attaching hardware is secure.

7 Section Ill ' '! I. Frame Assembly 7. Bolt 3. Base 9. Screw. Nut 8. Rail Assembly 4. Nut 3. Bolt 9. Foot Assembly 5. Retainer 4. Clamp 0. Nut. Bolt. Screw 5. Nut. Washer. Washer. Bolt 7. W asher 8. Bearing 0. Leg. Nameplate 3. Placard 4. Screw Figure 3-3. Work Stand Assembly, Mode l 30