PERIODIC MAINTENANCE
TNV DI Service Manual
5-39
Periodic Maintenance Procedures
• On models equipped with an oil cooler, remove
the coolant hose (Figure 5-18, (1)) at the oil
cooler.
Figure 5-18
5. After draining the engine coolant, flush the
radiator and engine block to remove any rust,
scale and contaminants. Then reinstall and
tighten the drain plug or close the drain cock in
the radiator. Reinstall and tighten the cylinder
block drain plug or reconnect the coolant hose
at the oil cooler.
6. Fill radiator and engine with engine coolant.
See Filling Radiator with Engine Coolant on
page 4-19.
Adjust Intake / Exhaust Valve Clearance
Proper adjustment is necessary to maintain the
correct timing for opening and closing the valves.
Improper adjustment will cause the engine to run
noisily, resulting in poor engine performance and
engine damage. See Intake / Exhaust Valve and
Guide on page 6-7.
Perform the following maintenance every 1500
hours of operation.
• Inspect, Clean and Test Fuel Injectors
• Inspect Turbocharger (Blower Wash as
Necessary) - 3TNV84T, 4TNV84T, 4TNV98T
and 4TNV106T, 3TNV84T-B, 4TNV84T-Z,
4TNV98T-Z
• Inspect, Clean and Test EGR Valve
4TNV84T-Z, 4TNV98T-E, 4TNV98-Z,
4TNV98T-Z
• Inspect and Clean EGR Lead Valve
4TNV84T-Z, 4TNV98T-Z
• Clean EGR Cooler
4TNV84T-Z, 4TNV98T-Z
• Inspect Crankcase Breather System
Inspect, Clean and Test Fuel Injectors
(1)
0001579B
Every 1500 Hours of Operation
A
WARNING
HIGH-PRESSURE HAZARD!
• Avoid skin contact with the
high-pressure diesel fuel spray caused
by a fuel system leak such as a broken
fuel injection line. High-pressure fuel
can penetrate your skin and result in
serious injury. If you are exposed to
high-pressure fuel spray, obtain
prompt medical treatment.
• NEVER check for a fuel leak with your
hands. ALWAYS use a piece of wood
or cardboard. Have your authorized
Yanmar industrial engine dealer or
distributor repair the damage.
• Failure to comply could result in death
or serious injury.
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TNV_DI_SM_A4.book 39 ページ 2007年12月6日 木曜日 午前9時23分
Содержание 3TNV82A-B
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Страница 383: ...ELECTRONIC CONTROL SYSTEM TNV DI Service Manual 13 7 Electronic control harness connections TNV_DI_SM_A4 book 7...
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