JAC HFC1035KD, Owner'S Manual

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Venting of the brake hydraulic loop
If air gets into the brake hydraulic loop, the braking effect will go down. So,
venting must be done if the fluid level is found very low in the brake fluid reser
鄄
voir or the hydraulic loop is disassembled during the brake maintenance. Vent 鄄
ing shall be done by two persons together.
Vent the air in the following steps
1. Truly release the parking brake.
2. Start and keep the engine in running until the vacuum degree goes up ade
鄄
quately.
If venting is done with the engine not running, adverse impact will occur to the
vacuum booster.
3. Check the level in the brake fluid reservoir, and add some more if needed.
Vent the brake hydraulic loop in the following steps.
Rear right wheel
要要 要 rear left wheel 要要 要 front right wheel 要要 要 front left wheel.
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4. Take off the rubber housing from the venting screw and clean it. Connect the
ethylene hose to the venting screw, and put the other end of the hose into a
transparent vessel.
5. Repeatedly step on the brake, and keep it stepped on.
6. Loosen the venting screw, and discharge the brake fluid with bubbles togeth
鄄
er into a vessel, and tighten the venting screw at once.
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