TM 9-2520-246-34 4-25. Assembly of Transfer (Sequence). g. Idler shaft driving gear (fig. 4-31). a. Idler shaft rear bearing cover (fig. 4-35). h. Input shaft front bearing cover (fig. 4-31). b. Rear output shaft rear bearing cover (fig. 4-35). i. Front output shaft and reverse shift shaft assembly (fig. 4-32). c. Input shaft assembly, fork assembly, and idler shaft assembly (fig. 4-33). j. Front output shaft cover assembly (fig. 4-29, 4- 32). d. Transfer top cover and shifter shaft (fig. 4-34). k. Companion flanges (fig. 4-30). e. Rear output shaft assembly (fig. 4-33). l. Handbrake drum and shoe assembly (fig. 4-27, 4- f. Case cover (fig. 4-31). 28). Section VII. TEST AND ADJUSTMENT (MODEL T-136-21) 4-26. General. This section provides for the tests and adjustments of model T-136-21 transfer. 4-27. Lubrication. Tighten drain plug (fig. 4-27). Lay transfer on side with filler plug up (fig. 4-26). Remove filler plug and pour ½ pint of universal gear lubricant (GO), MIL-L-2105, through the plug opening. Install and tighten plug. Lubrication of complete unit should be accomplished after installation. Attach tag to filler plug giving instructions for filling before transfer is placed in service. Refer to paragraph 4-20 and lubrication order (LO 92320-209-12/1) for lubrication specifications. Tighten filler plug to 40-55 lb-ft torque. 4-28. Shift Test. a. Neutral. Place shifter shaft in neutral position (between “low” (shifter shaft out) and “high” (shifter shaft in)). Turn input shaft by hand. Front and rear output shafts should not turn. b. High. Push shifter shaft in to shift to high position. Turn input shaft in clockwise direction. Rear output shaft should revolve in same direction. Front output shaft should not turn. c. Low. Pull shifter shaft out to shift to low position. Turn input shaft by hand and note if rear- output shaft turns approximately one-half as fast as when in high (b above). d. Sprag Unit Test. With shifter shaft in either low or high position, front output shaft should turn freely in a clockwise direction but should not turn counterclockwise when input shaft is held stationary. With reverse shift shaft held in, front output shaft should turn freely in counterclockwise direction but should not turn clockwise when input shaft is held stationary. 4-29. Handbrake Test. Pull handbrake lever (fig. 4- 27) to engage brake shoes with handbrake drum. Release lever and note if shoe return spring pulls free of drum. For vehicle test refer to TM 9-2320-209- 20/1. 4-30. Handbrake Shoe Adjustment. If shoes do not clear drum (4-29 above), check adjustment of shoe anchor pin. If outer shoe is free on anchor pin, tighten bolt in shoe stop to increase shoe-to-drum clearance. For in-vehicle adjustment refer to TM 9-2320-209- 20/1. 4-31. Adjustment of Rear Output Shaft Bearing. a. Test Bearing Adjustment. Reach inside of case and turn rear output shaft assembly. Shaft should drag slightly when turned by hand. If tests indicate bearings are too tight or too loose, shims must be added or removed as directed in b below. b. Add or Remove Shims. Remove six capscrews and lockwashers holding the rear output shaft-rear bearing cover (fig. 4-35) to case, and remove cover. Add or remove shims as required to obtain a slight drag when shaft assembly is turned by hand from inside the case. Place cover on case, making sure pin in cover enters hole in case. Install six capscrews and lockwashers and tighten to 60-77 lb-ft torque. c. Add Shim. When slight drag adjustment has been obtained, remove rear output shaft rear bearing cover and add one 0.003-inch shim. Install cover (b. above). This will provide and ensure the proper end play. 4-32. Adjustment of Idler Shaft Bearing. a. Test Bearing Adjustment. Reach inside of case and turn idler shaft assembly. Shaft should have slight 4-30