33
21) Nozzle and holder
Specifications
Model
J843 (CM284)
N843L (CM364)
Model
J843 (CM284) N843 (CM364)
Part code No.
131406440 131406360
Needle valve dia.
φ
4
Ass’y No.
105148 – 1210
105148 - 1170
Pintle dia.
φ1
Valve opening
11.76 MPa
{120 kgf/cm
2
}
14.7 MPa
{150 kgf/cm
2
}
Nozzle holder
105078 - 0100
Injection angle
4°
Nozzle
105007 – 1170 (NP-DN4PDN117)
Nozzle type
Throttle type
Structure and functions
The nozzle is finished super-precisely to inject the fuel
which is fed from the injection pump under pressure to the
combustion room in good condition. Components as
shown in the right figure are incorporated.
The fuel is fed under pressure from the oil hole of the
nozzle holder main body to the nozzle body. When the
pressure exceeds the specified value, it pushes the spring,
injected from the nozzle, and at the same time lubricates
and cools the nozzle and nozzle body.
The oil leaking at this time is returned to the tank by the
return pipe.
053X
054X
Disassembly and inspection
(1) Place the nozzle holder (body) in a vice and disassemble turning the nozzle nut.
NOTE: Take care not to allow the needle valve to drop when removing the nozzle.
(2) Wash the nozzle and needle valve and check for seizure and sticking of the nozzle and fuel leakage on the seat surface.
Correct fuel leakage of the seat by lapping.
(3) Check the distance piece upper and lower contact areas and correct to be stuck closely.
(4) Check the push rod for wear on the nozzle needle valve contact surface and check the spring seat for crack.
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Содержание CM284
Страница 1: ...FRONT MOWER CM284 CM364 WORKSHOP MANUAL Downloaded from www Manualslib com manuals search engine ...
Страница 4: ...3 Chapter 1 GENERAL Downloaded from www Manualslib com manuals search engine ...
Страница 29: ...28 13 Oil flow 045X Downloaded from www Manualslib com manuals search engine ...
Страница 84: ...83 Chapter 3 TRANSMISSION AND BRAKE Downloaded from www Manualslib com manuals search engine ...
Страница 87: ...86 4 Power Flow Range gear 304X 305X Downloaded from www Manualslib com manuals search engine ...
Страница 88: ...87 5 Power Flow PTO 306X 307X Downloaded from www Manualslib com manuals search engine ...
Страница 117: ...116 Downloaded from www Manualslib com manuals search engine ...
Страница 118: ...117 Chapter 4 HST SYSTEM Downloaded from www Manualslib com manuals search engine ...
Страница 135: ...134 Downloaded from www Manualslib com manuals search engine ...
Страница 136: ...135 Chapter 5 POWER STEERING Downloaded from www Manualslib com manuals search engine ...
Страница 150: ...149 Chapter 6 REAR AXLE ASSEMBLY Downloaded from www Manualslib com manuals search engine ...
Страница 158: ...157 Chapter 7 HYDRAULIC LIFT SYSTEM Downloaded from www Manualslib com manuals search engine ...
Страница 167: ...166 Downloaded from www Manualslib com manuals search engine ...
Страница 168: ...167 Chapter 8 IMPLEMENT DRIVE Downloaded from www Manualslib com manuals search engine ...
Страница 174: ...173 Chapter 9 MAINTENANCE STANDARDS TABLE Downloaded from www Manualslib com manuals search engine ...
Страница 177: ...176 Downloaded from www Manualslib com manuals search engine ...
Страница 178: ...177 Chapter 10 ELECTRICAL SYSTEM Downloaded from www Manualslib com manuals search engine ...
Страница 181: ...180 1000X Downloaded from www Manualslib com manuals search engine ...
Страница 195: ...194 1033X Downloaded from www Manualslib com manuals search engine ...
Страница 196: ...195 1034X Downloaded from www Manualslib com manuals search engine ...
Страница 197: ...196 1035X Downloaded from www Manualslib com manuals search engine ...
Страница 198: ...197 1036X Downloaded from www Manualslib com manuals search engine ...
Страница 199: ...198 1037X Downloaded from www Manualslib com manuals search engine ...
Страница 200: ...199 1038X Downloaded from www Manualslib com manuals search engine ...
Страница 201: ...200 1039X Downloaded from www Manualslib com manuals search engine ...
Страница 202: ...201 1040X Downloaded from www Manualslib com manuals search engine ...
Страница 203: ...202 1041X Downloaded from www Manualslib com manuals search engine ...
Страница 204: ...203 1042X Downloaded from www Manualslib com manuals search engine ...
Страница 205: ...204 1043X Downloaded from www Manualslib com manuals search engine ...
Страница 206: ...205 1044X Downloaded from www Manualslib com manuals search engine ...
Страница 207: ...206 Downloaded from www Manualslib com manuals search engine ...
Страница 208: ...207 Chapter 11 MOWER Downloaded from www Manualslib com manuals search engine ...
Страница 209: ...208 11 1 Sectional View FM60SD 1101X Downloaded from www Manualslib com manuals search engine ...