TD2303-08EN YTxx2 52
1. Ensure the engine is not running.
2. If a pressure cap with pressure release (push button or lever) is installed firstly
always carefully release the full system’s pressure with the cap still in the fully closed
end stop position (A).
3. To prevent the pressure inside from erupting, slowly rotate the pressure cap from the
fully closed end stop (A), via (B) to the release area (C). Any remaining system
pressure needs to be fully released before removing the expansion tank cap (D).
Warning! If you don’t, this could cause the scalding hot coolant to spill over you or someone
standing nearby.
If you need to replace a pressure cap, use only a cap with the correct recommended pressure. If a
cap with a lower pressure rating is fitted, it will lower the boiling point of the coolant.
Alternatively, a higher rated cap will increase the boiling point.
6.4 Hydraulic level
Before checking the oil level, check the hydraulic oil hoses, connections and cylinders for
leaks. The oil level must be halfway up the sight glass when the lifting system is in its lowest
position. If the oil level is too low, top it up with the same type of oil that is already present in
the system. Add oil through the breather filter on the top of the hydraulic tank. Unscrew the
breather filter cover anti clockwise and remove the breather filter. Add oil into the hydraulic
reservoir. Replace the breather filter and screw the breather filter cover clockwise hand tight.
The oil level check must be carried out with the engine switched off, to eliminate the risk of
air being drawn into the hydraulic system.
Make sure that the lifting system is in its lowest position when you check the oil level.
Use the same type of hydraulic oil as already used in the hydraulic system. See the Terberg
maintenance manual for more detailed information.
6.5 Fifth wheel
Check that the fifth wheel is well greased to eliminate wear.
Keep the fifth wheel sensors clean. They must be clean and in good condition to ensure
correct operation.
If necessary clean the sensors with a lint-free cloth.
Stay away of an operating fifth wheel. Body parts could become trapped in the fifth wheel or between
the fifth wheel and the tractor chassis.
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