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Camshafts
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TM-5-4210-220-34 Truck Firefiighting 1000 GPM Multipurpose Model 2500L Manual
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DISASSEMBLY - TM-5-4210-220-34_446
TM 5-4210-220-34 3-8. ENGINE - Continued REMOVAL (1) Remove  the  capscrews  (2)  that  secure  the  nut  retaining  plates  (3)  to  the  camshaft  gears  (1  and  4),  then remove the retaining plates. (2) Wedge a clean rag between the lower face of the camshaft gears (1 and 4) and remove the gear retaining nuts   (5)   from   both   ends   of   each   camshaft.      On   the   front   camshaft   gears,   remove   the   internal   tooth lockwashers after removing the retaining nuts (5). (3) Attach  puller  J24420-A  to  the  camshaft  pulley  (8)  and  position  adapter  J7932  between  the  end  of  the camshaft (7) and the puller screw.  Tighten the puller pressure screw and remove the pulley.  Remove puller. (4) Attach puller J24420-A to the water pump drive gear (9) and position adapter J7932 between the end of the camshaft  (6)  and  the  puller  screw.    Tighten  the  puller  pressure  and  remove  the  water  pump  driver  gear. Remove the puller. (5) Remove the woodruff key (10) and spacer (11) from the front end of each camshaft (6 and 7). (6) Remove all of the camshaft intermediate bearing lockscrews (1 2) from the top of the cylinder block. (7) Rotate  the  camshaft  gears  (1  and  4)  as  necessary  to  reveal  the  camshaft  rear  end  bearing  retaining  bolts (13).  Remove all the retaining bolts (13) and lockwashers (14). (8) Withdraw camshaft (6), bearing (15), thrust washers (16), and gear (4) from the cylinder block. (9) Withdraw camshaft (7), bearing (15), thrust washers (16) and gear (1) from the cylinder block. (10) Remove the camshaft front end bearing retaining bolts (13) and washers (14).  Then withdraw the bearings (15) from the cylinder block.  If necessary, use a small pry bar under the bearing flange.  Remove all traces of gasket (17) from the bearing or front end plate. DISASSEMBLY NOTE Prior  to  dismantling  any  components,  visually  examine  the  camshaft  to  determine  whether  or  not  camshaft  is serviceable.  Refer to INSPECTION following for measurement tolerances. (1) Using puller J1902-01 remove the gear (1) from the camshaft (7). (2) Remove the woodruff key (10). (3) Slide the camshaft rear end bearing (15) and thrust washers (16) off the camshaft (7) (4) Remove  the  lock  rings  (19)  from  the  camshaft  intermediate  bearings  (18),  thus  releasing  the  two  bearing halves from the camshaft. 3-155

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