Subject,  Page Subject,  Page TM 9-2350-261-20-2 H (cont) Heater (cont) : M13  NBC,  M1068,  replace,  39-65 Tee connection to fuel pump, M981, replace,  29-17 Malfunctions: Coolant,  3-217 Personnel,  3-207 M3 NBC, M106A2, M125A2, replace, 39-51 Pump,  coolant,  replace,  32-51 System,  engine  coolant,  drain  and  fill,  32-10 Tube  to  bulkhead  connection: Replace,  M106A2,  M1064,  M125A2,  29-33 Replace,  M113A2,  M1059,  29-24 Replace,  M577A2,  M1068,  29-40 VFM, M25/M25A1, replace, 39-102 Wiring  harness,  M13  NBC,  M577A2,  replace, 39-3 Wiring  harness,  M13  NBC,  M1068,  replace, 39-72 Heater  and  pump  unit,  coolant,  replace,  31-45 Heater  component  maintenance,  Stewart  Warner Corp.,  31-1 High beam indicator light malfunctions, 3-140 High  stow  bracket,  M901A1,  replace,  24-124 High stow launcher support, M901A1, replace, 24-122 Hook  and  bumper: Cargo  hatch,  door,  M113A2,  M901A1, M1059,  replace,  24-105 Commander’s  cupola,  hatch  latch,  M113A2, M125A2,  M1064,  M106A2,  replace,  24-88 Commander’s  hatch,  M577A2,  M1068,  replace 24-99 Driver’s  hatch  latch,  all  except  M901A1, replace,  24-64 Hook,  towing,  replace,  24-3 Horizontal  ammunition  rack: Repair,  M1064,  24-190.3 Replace,  M106A2,  24-191 Replace,  M125A2,  24-189 Replace,  M1064,  24-190.3 Hooks  and  brackets,  stowage,  M113A2,  replace, 35-3 Horn: Does  not  operate,  3-102 Switch,  replace,  11-24 Horn and ground lead, replace, 12-2 Hose: Air cleaner restriction indicator, replace, 7-9 H  (cont) Hose  (cont): Balance,  replace,  8-24 Breather,  on  ramp  cylinder: Replace,  all  except  M106A2,  M1064, M125A2,  28-91 Replace, M106A2, M1064, M125A2, 28-92 Bulkhead  connection  to  ramp  cylinder,  replace, 28-89 Coolant  heater  fuel  pump  to  bulkhead connection: Replace, M106A2, M125A2, 32-21 Replace, M577A2, M1068, 32-20 Differential: Gearbox-to-differential,  replace,  21-12 Oil  filter-to-pump,  replace,  21-16 Oil  pump-to-differential,  replace,  21-10 To  oil  cooler,  replace,  21-14 Equipment. heater fuel pump to bulkhead connection,  M577A2,  replace,  31-7 Fuel  compartment-to-fuel  pump,  M577A2, M1068, 29-36 Fuel  pump  to  bulkhead  connection: Replace,  29-19 Replace,  M106A2,  M1064,  M125A2,  29-31 Fuel  pump  to  heater  shutoff  valve,  M1064, 29-30.1 Fuel tank to fuel pump: Replace, M113A2, M901A1, M1059, 29-15 Heater fuel inlet, replace, 32-25 Oil  cooler-to-transmission,  and  fittings, replace,  18-4 Ramp  pump: To  pressure  release  valve,  replace,  28-9 Relief  valve  tee  to  quick  disconnect,  replace, 28-11 Shutoff  valve  to  fuel  pump,  M577A2,  replace, 31-5 Smoke  generator,  breather  assembly,  M1059, replace,  40-5 Trans-to-oil cooler, and fittings, replace, 18-2 Hoses: And brackets, M8A3 NBC, M577A2, replace, 39-30 And brackets, M8A3 NBC, M106A2, M125A2,  replace,  39-36 And  brackets,  M113A2  ambulance,  replace, 39-90 And filters, M13 NBC, M1068, replace, 39-61 Change 4 Index 15