TM 9-6115-604-34NAVFAC P-8-633-34(e)Replace worn weight pins (8 and 43), governor weights (5 and 40), governor gears (9 and 44), carriershafts (7 and 42), or governor carriers (6 and 41) as follows:1Press out the weight pins (8 and 43) and remove the governor weights (5 and 40).2Remove the governor gears (9 and 44) using weight carrier block ST-1 231.3Press out the carrier shafts (7 and 42) working from the governor carriers (6 and 41) side.4Press in new carrier shafts (7 and 42) so that they are flush with, or not over 0.005 inch (0.13 mm)below the face on the weight side of the governor carriers (6 and 41).5Support the carrier shafts (7 and 42) on the governor carriers (6 and 41) side, install the replacementgovernor gears (9 and 44) on the shafts with the chamfered side of the governor gears facing thegovernor carriers, and press the gears onto the shafts until they bottom on the governor carriers.6Align the holes in the replacement governor weights (5 and 40) with the holes in the governorcarriers (6 and 41) and press in new weight pins (8 and 43).(f)Check the tachometer drive shaft (13) for wear. Replace the tachometer drive shaft if the minimumdiameter is under 0.3950 inch (10.033 mm).(g)Check the sleeve bearing (16) for wear. Replace the sleeve bearing if the inside diameter is over 0.3970inch (10.084 mm).(h)Check the gear teeth on the tachometer driven gear (17) for wear, chipping, or cracking. Check the insidediameter of the tachometer driven gear for wear. Replace the tachometer driven gear if the teeth aredefective, or the inside diameter exceeds 0.3948 inch (10.028 mm).(i)Replace the tachometer seal spacer (15) If it Is distorted or cracked.(j)Replacethe spider (19) if it is worn or cracked.(k)Replace the fuel pump drive coupling (23) if it is cracked, if the keyway slot is worn, or if it is worn in thedrive area.(I)Replace the drive key (32) if it is worn, cracked, or distorted.(m)Replace the tachometer drive gear 124) if the teeth or splines are worn, cracked, or chipped.(n)Replace the drive shaft (31) if the splines are worn, cracked, or chipped, or the keyway is worn inaccordance with step (r), below.(o)Check the fuel pump drive coupling (27) for wear and scoring in the bearing area. Replace the fuel pumpdrive coupling if a wear edge can be felt with the fingernail in accordance with step (r), below.(p)Replace the fuel pump drive gear (28) if the teeth are worn, cracked, or chipped in accordance with step(r), below.(q)Replace the ball bearing (30) if any roughness can be felt when turning the outer race, or if the balls orraces are visually scored, chipped, or flaked in accordance with step (r), below.(r)Replace a defective drive shaft (31), fuel pump drive coupling (27), fuel pump drive gear (28), or ballbearing (30) as follows:1Support the fuel pump drive gear (28) on a bearing splitter, and press out the drive shaft (31) fromthe fuel pump drive coupling (27) end, and remove the fuel pump drive coupling and fuel pump drivegear from the drive shaft.2Support the inner race of the ball bearing (30) on a bearing splitter, press on the drive shaft at thefuel pump drive coupling (27) end, and remove the ball bearing from the drive shaft.3Lubricate the drive shaft (31) with a high pressure lubricant such as MIL-L-24478B and install the ballbearing (30) on the drive shaft using driver 3375172.4Using driver 3375172, press the fuel pump drive gear (28) on the drive shaft (31) with the hub endtoward the ball bearing (30).6-31
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