AVANT A36883, Руководство оператора для насадки

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7.3 Tightening hydraulic fittings
Tighten the fittings carefully according to given instructions and safety procedures. Keep in mind that over
tightening will break a fitting. Tigthen basic fittings carefully with hand tools using moderate torque. The elbow
fittings should be tightened at last, after hoses have been fitted to their clamps.
Tapered JIC-type fittings:

Lubricate the inner surfaces and threads of the fittings.

A JIC type fitting is not tightened only by torque and it will not need a lot of force at
any point when tightening. Overtightening or misalignment will break the fitting.

Turn the manually as far as possible, and then lightly with tools ensuring that the
fitting is threaded properly. When noticing clear increase in needed force, tighten
fitting to its final tightness by turning only 1/3 to 1/2 turns using tools.

After tightening,try to twist the hydraulic hose manually, the fitting should stay firm.
Test to find any leaks
DANGER
Before checking for leakages, or going near any hydraulic fitting, to avoid possible
ejection of pressurized hydraulic oil:

Shut down the loader engine

Depressurize the hydraulic system completely

Wipe the hydraulic components clean to find leaks more easily.

Place pieces of cardboard around the fittings to detect leaks.

Start the engine. While running on idle, operate the auxiliary hydraulics control lever briefly a couple of
times. Shut down the engine, depressurize the hydraulics, and check for any sign of leak. Tighten if
necessary.

Repeat the test by gradually increasing engine rpm and operating time. Use both directions of the
auxiliary hydraulics control lever.
DANGER
Risk of high pressure fluid injection through skin - Test the tightness of the
hydraulic fittings carefully.
Use idle rpm when starting the first time and keep a safe
distance due to the risk of hydraulic fluid ejection. Shut down the loader and release the
residual pressure before checking for leaks. Remember to use and wear protective
equipment.
DANGER
Risk of high pressure fluid injection through skin - Never test the tightness of the
hydraulic components by placing hands near the fittings.
Never tighten a
pressurized hydraulic fitting, since the fitting may break and the released oil may cause
serious injuries.