CHAPTER 7. FUEL SYSTEM
83
7
3.5 - 4.0 kgf
兟
m
When a nozzle is found functioning poorly through spray
test, wash it. If its original function is not restored by
washing, replace it.
兟
Nozzle washing
First wash the nozzle in clean gasoline, and then wash it
again in clean diesel fuel before assembling it.
If the nozzle is seized, soak it in cleaning liquid after
washing. Then wash it again.
3.4. INSTALLATION OF INJECTION NOZZLES AND
HOLDERS
兟
Before installation, wash all parts in clean diesel fuel
or cleansing oil.
兟
Put the adjusting shim, spring, pressure pin, and dis-
tance piece on the nozzle holder body in this order.
Lastly place the nozzle assembly and retain with the
retaining nut.
兟
Nozzle replacement
Replace the assembly of the needle valve and nozzle
body.
Before installing a new nozzle, move the needle valve
sufficiently in the nozzle body in clean diesel fuel
warmed up at 50 - 60°C (122 - 140°F) to remove the
anti-corrosive completely.
兟
Needle valve sliding
Move the needle valve in and out of the nozzle body
several times in clean diesel fuel to make sure of its
smooth movement.
Slant the nozzle body by about 60°, pull out the needle
valve by about one-third of its length, and release it.
When it comes down smoothly, it is normal. Perform
three tests with the needle valve turned by 120°at each
test.
If the needle valve does not move smoothly, replace the
assembly of the needle valve and nozzle holder.
Fig. 7-28
NOTE: When installing the pressure pin and distance
piece, pay attention to their directions.
兟
Hold the nozzle holder body in a vise and tighten the
retaining nut to the specified torque.
Specified torque
Incorrect tightening torque will lead to fuel leakage or
nozzle seizure.
兟
Remove the assembly from the vise and install a new
washer, the packing ring, and nut. (Be sure to discard
the removed washer and install a new one.)
兟
Check each assembly on a nozzle tester for spraying,
valve-opening pressure, etc.
Valve-opening pressure should be adjusted with an
adjusting shim.
3.5. INSTALLATION OF INJECTION NOULES AND
HOLDERS
兟
Install the nozzle gasket into the cylinder head.
兟
Screw in the retaining nut by hand.
兟
Tighten the retaining nut to the specified torque, using
a box wrench [21 mm (0.83 in.)].
Specified torque
4
䢯
5 kgf
兟
m
兟
When using an air tool to tighten the nut, make its
tightening speed as slow as possible.
Содержание SXG323
Страница 1: ...LAWN MOWERS MOWER DECKS COLLECTORS SCMB48 SCMA54 SBC550X 600X ...
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Страница 14: ...CHAPTER 1 GENERAL INFORMATION 13 1 3 EXTERIOR VIEW Fig 1 4 ...
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Страница 35: ...SERVICE MANUAL FOR SXG323 326 34 1 2 PERFORMANCE CURVES 1 SXG326 E3112 G07 Fig 4 1 2 SXG323 E3112 G06 Fig 4 2 ...
Страница 51: ...SERVICE MANUAL FOR SXG323 326 50 3 3 CYLINDER BLOCK 3 3 1 EXPLODED VIEW Fig 4 55 ...
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Страница 70: ...CHAPTER 5 LUBRICATION SYSTEM 69 5 1 4 EXPLODED VIEW OF OIL PUMP Fig 5 4 ...
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Страница 97: ...SERVICE MANUAL FOR SXG323 326 96 2 OPERATING DIAGRAM OF HST Fig 10 2 ...
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Страница 100: ...CHAPTER 10 HYDROSTATIC TRANSMISSION 99 10 Fig 10 7 ...
Страница 101: ...SERVICE MANUAL FOR SXG323 326 100 Fig 10 8 4 DISASSEMBLY AND REASSEMBLY ...
Страница 102: ...CHAPTER 10 HYDROSTATIC TRANSMISSION 101 10 4 3 ...
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Страница 107: ...SERVICE MANUAL FOR SXG323 326 106 4 5 CRITERIA FOR REPLACING WORN PARTS ...
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Страница 124: ...CHAPTER 12 POWER STEERING SYSTEM 123 12 3 MAJOR TROUBLES AND CAUSES AND COUNTERMEASURES ...
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Страница 126: ...CHAPTER 12 POWER STEERING SYSTEM 125 12 ...
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Страница 129: ...SERVICE MANUAL FOR SXG323 326 128 3 ALL TYPE Engine Fig 13 7 Fig 13 8 Fig 13 10 Fig 13 9 Fig 13 11 ...
Страница 130: ...CHAPTER 13 ELECTRICAL ACCESSORIES 129 13 2 WIRING DIAGRAM E TYPE Fig 13 12 ...
Страница 131: ...SERVICE MANUAL FOR SXG323 326 130 3 WIRING DIAGRAM GE TYPE Fig 13 13 ...
Страница 132: ...CHAPTER 13 ELECTRICAL ACCESSORIES 131 13 Fig 13 14 4 STARTER ...
Страница 140: ...CHAPTER 13 ELECTRICAL ACCESSORIES 139 13 Fig 13 48 Fig 13 47 ...
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Страница 152: ...CHAPTER 1 FOR SAFETY LABELS 5 1 SAFETY LABELS SCMB48 54 CHAPTER 1 FOR SAFETY LABELS ...
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Страница 173: ...SERVICE MANUAL FOR SXG323 326 26 3 Gear box left hand ...
Страница 175: ...SERVICE MANUAL FOR SXG323 326 28 SCMB48 54 Front Belt and Belt tension Blade and Blade hub ...
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Страница 188: ...CHAPTER 2 SPECIFICATIONS 7 2 SPECIFICATIONS CHAPTER 2 SPECIFICATIONS ...
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Страница 214: ...CHAPTER 7 ASSEMBLY INSTRUCTION 33 7 Hydraulic hose allocation How to allocate pipes of CONTROL VALVE ...
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