Takeuchi TB 175 Handbuch Seite 751

2. Inspection and adjustment
g)When filling with the cooling water for the first time or replacing, the air contains in the cooling water
system. So, as the air in the cooling water system is self-bleeded during engine operation, the cooling
water level in the radiator and coolant recovery tank will be lowered. Replenish the cooling water into the
radiator and coolant recovery tank until it reaches the FULL mark of the coolant recovery tank.
Daily check of the cooling water level and refilling can be done by observing the coolant recovery
tank.
The cooling water capacity of the radiator depends on the machine unit. Refer to the operation
manual provided by the equipment manufacturer.
Check the cooling water level when the engine is cold. Cooling water flows to the coolant
recovery tank when the radiator is still hot and makes accurate checks impossible.
Check the radiator and hoses for leakage.
(2) Diaphragm assy inspection
Inspect the diaphragm assy on the rocker arm cover
every 1000 hours or 2 years. Refer to 4.2.4 point 6 for
the function of the diaphragm.
1)Loosen screws, and remove a diaphragm assy, and
check whether oil and so on doesn't enter between
the diaphragm and the cover. If oil and so on enters
into the diaphragm assy, the diaphragm doesn't work
well.
2)Check the damages of the diaphragm rubber and
the spring. If necessary, replace with new ones.
[NOTICE]
• When a diaphragm is damaged, pressure control
inside the crankcase becomes insufficient, and trou-
bles such as combustion defect and so on occur.
• At lubricating oil replacement or lubricating oil supply,
the amount of lubricating oil isn't to be beyond the
standard upper limit. If the lubricating oil quantity is
beyond the upper limit or an engine is operated
beyond the allowable maximum angle of an engine,
the amount of oil mist may be inducted in the com-
bustion chamber and the oil hammer sometimes may
occur.
Center plate
Diaphragm
Breather pipe
Breather system componert
38
Diaphragm
Spring
cover
Rocker arm
cover
Breather
baffle
Intake
maniforld
Baffle plate