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Disassembly - TM-5-4210-220-34_74
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TM-5-4210-220-34 Truck Firefiighting 1000 GPM Multipurpose Model 2500L Manual
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Disassembly (cont) - TM-5-4210-220-34_76
TM 5-4210-220-34 2-12. PUMP DRIVE AND PTO - Continued NOTE There are a number of parts on the idler shaft that may fall out once the idler shaft is removed.  Position PTO so parts do not fall out. (3) Supporting to PTO housing (1), oil supply end up, on a hydraulic press bed, press the idler shaft (7) from the  housing  using  a  ram  adapter  about  7/8  X  7.5  in.    Do  not  allow  idler  shaft  to  drop  to  the  ground because damage to the idler shaft may occur. (4) Remove ram adapter from PTO housing (1). (5) Remove  cluster  gear  (6)  and  place  on  clean  workbench.    During  removal,  hold  the  cluster  gear  in  a horizontal position so that the needle bearings (9) and spacer (8) do not fall out. (6) Remove needle bearings (9) and spacer (8) from cluster gear (6). (7) Remove thrust race (12), needle bearing spacers (11) and thrust bearing (10) from  housing  (or  bench top). (8) Remove the O-ring (45) from the idler shaft (7) and discard O-ring.    Remove  the  O-ring  (48)  from  the PTO housing (1) and discard O-ring. (9) Remove nut (13), companion flange (14) and spacer (16) from the drive shaft (30).  A mechanical puller may be used to remove companion flange. (10)  Remove bearing cover (18) and gasket (19) by removing four capscrews (17). (11)  Remove seal (15) from bearing cover (18) and discard seal. (12)  Remove bearing cap (29) and gasket (19) by removing four capscrews (17). (13)  Remove the retaining ring (26), back-up plate (27), and seal (28) from the bearing cap (29). (14)  Attach the yoke of a puller to the oil supply end of PTO housing.  Tighten pressure screw into oil supply end  of  drive  shaft  (30).    Continue  to  tighten  pressure  screw  until  bearing  (20)  is  pushed  from  PTO housing via the drive shaft.  Remove mechanical puller from oil supply end of PTO housing.  Using an outside three jaw puller, remove bearing (20) from shaft (30).  Make sure the jaws of the puller contact the inner race of the bearing.. (15)  Remove  bearing  (25)  using  an  inside  three  jaw  puller  on  a  slide  hammer.    Make  sure  the  jaws  of  the puller are contacting the outer race of the bearing. (16)  Remove lock ring (44) from drive shaft (30) and pull internal drive gear (43) from drive shaft. (17)  Remove lock ring (42) and key (31) from drive shaft (30). (18)  Remove lock ring (21) from spider gear assembly (24)  (19)   Position   PTO   housing   (1)   so   that   spider gear assembly (24) is resting internally on the companion flange end of PTO housing. 2-69

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