CRANE ASSEMBLY - cont - TM-5-3820-256-24-2

CRANE ASSEMBLY - cont - TM-5-3820-256-24-2_65

TM-5-3820-256-24-2 Drilling System Well Rotary Truck Mounted Air Transportable 600 Feet Capacity Model LP-12NSN3820-01-245-4276 Manual
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k. Install lightly oiled seal (14) into groove of roller stator (15). With seal side down place roller stator (15) over the drive link with mark on drive link root in line with rotor valley (min. diameter). Mark on stator must be in line with slot in wear plate. Note alignment of seven feed holes with wear plate and housing. Align four bolt holes with housing. Care must be taken to insure that seal stays in place. Note: Counterbore on rotor is away from housing. l. Place lightly oiled seal (14) into end cover (17). m. Place grease in recessed center of end cover face. Install pin (16) into greased recess if recess is filled with oil, wipe clean before loading with grease. n. Carefully invert end cover assembly (17, 16 and 14) and place into position on top of roller stator assembly. Take care not to dislodge seal or pin from end cover. 0. Check sides for seals that may be out of place. p. Insert four bolts (18) and torque to 50 foot pounds. q. Place assembly on side (ports up) in vise and rotate shaft with key in place and check to insure the suction port is in the same direction of rotation. 5-7.3 Extension Boom Assembly. (Figure 5-9) 5-7.3.1 Removal and Disassembly. a. Remove clinch pin (1) and extension pin (2). b. Withdraw the manual extension boom (3) from the extension boom (4). c. Remove the nut (5), screw (6) and spacer (7). d. Remove the nut (8), screw (9) and spacer (10). e Remove the nut (I1), pin (12), with grease fitting (13), and remove the sheave (14), bearings (15) and cups (16) from the boom (3). f. Remove cotter cotter pins (17) and cylinder pin (18) to disconnect extension boom (4) from cylinder. g. Refer to figure 5-10 and remove screws (1), retainer (2), nut (3), pin (4) and trunnion (5) from main boom. h. Pull extension boom (4, figure 5-9) out of main boom and, as necessary, remove screws (19) and wear pads (20, 21 and 22). i. Replace worn parts as required. 5-7.32 Assembly and Installation. a. Attach the wear pads (20, 21 and 22) to the extension boom (4) with screws (19). Be sure that screw heads are recessed below surface of wear pads and tightened securely. 5-21

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