6-1-8-prokachka-gidroprivoda-vyklyucheniya-scepleniya.html
6.1.8. Pumping of a hydraulic actuator of switching off of couplingIf at the pedal pressed against the stop coupling is switched off not completely ("conducts") that is followed by a characteristic gnash of gear wheels at turning on of the reverse gear, perhaps, air got to a hydraulic actuator of switching off of coupling. Remove it with pumping of a hydraulic actuator.
Besides, pumping is carried out when filling a hydraulic actuator with liquid after its replacement or the repair of knots of system connected with its depressurization.
It will be required to you: brake fluid, a hose for pumping, a key "on 10", capacity for the merged liquid.
1. Check the level of working liquid in a tank of the main brake cylinder (a tank the general for both main cylinders) and if necessary bring to norm.
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2. Remove a protective cap from the valve for removal of air of the working cylinder of coupling.
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3. Put on a hose the valve and lower its end in capacity with a small amount of brake fluid. Ask the assistant to press 4–5 times a pedal of coupling with intervals 2–3 with, and then to hold it pressed. Turn out the valve on 3/4 turns. Liquid with vials of air will follow from a hose in capacity.
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4. Wrap the valve and ask the assistant to release a coupling pedal.
5. Repeat operations 3 and 4 several times prior to the beginning of an exit from a liquid hose without vials of air.
PREVENTION
During pumping of a hydraulic actuator periodically check liquid level in a tank of the main cylinder of coupling. Do not allow falling of level of liquid in a tank below a tag of "MIN" on a tank wall. In due time add liquid, otherwise at drainage of a bottom of a tank will get to system air and pumping it is necessary to repeat anew.
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6. Wrap the valve, put on a protective cap and if necessary add liquid in a tank of the main cylinder of coupling.
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