Fig. 13. Removing Idler Shaft and Gear

Fig. 15. Removing Differential Bearing Caps

TM-5-3820-256-24-5 Drilling System Well Rotary Truck Mounted Air Transportable 600 Feet Capacity Model LP-12 NSN 3820-01-246-4276 Manual
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SERVICE MANUAL Fig. 12. Removing Input Gear Bearing Retainer Nut (RA- 351, 35 Shown - RA-341 Similar) 1 Input Gear 2 Bearing Nut Wrench 3 Bearing Retainer RA-351, 355 a. Remove bearing retainer mounting bolts from rear of intermediate case and tap input gear bearings and retainer assembly out toward front. b. Remainder of input gear disassembly is same as for RA-341. IMPORTANT Inner bearing is a press fit on gear and will most likely be damaged if removed. Remove only if to replace. 3. Loosen idler shaft end nut using torque multiplier wrench. Use flats provided on shaft end to hold shaft from turning while nut is being loosened. Remove nut and washer. 4. Support rear face of intermediate case and press idler shaft from case. 5. Remove idler shaft gear and bearings from case (Fig. 13 and 14). Separate bearings, bearing races and bearing spacer from idler gear. Note that models RA-351 and 355 use two bearing spacers. Fig. 13. Removing Idler Shaft and Gear 1 Idler Shaft Fig. 14. Idle Gear Components (RA-341 Shown) Disassemble Output Shaft Assembly 1. Clamp companion flange of output shaft in vise. 2. Remove companion flange nut and flange. 3. Remove bearing retainer (with seal). FORWARD REAR AND REAR REAR AXLES Disassemble Diff Carrier Assembly 1. Remove cotter pins from bearing adjuster locks and remove locks. 2. Mark one bearing cap and leg of carrier with a punch or chisel to identify each for cqrrect reassembly. 3. Remove bearing cap bolts and take off bearing caps and adjusters (Fig. 15). CTS-4044 PRINTED IN UNITED STATES OF AMERICA Page 8

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