ZF — ZF BAIC Full Power Hydraulic Brake System Service Manual

4-36 Item Description Service action Service brake pedal check Slowly depress brake pedal. Listen for a hissing noise that indicates oil is flowing to brake pistons. LISTEN/FEEL : A hissing noise must be heard when pedal is depressed. OK Check completed. NOT OK Inspect for debris under brake pedal. Service and parking b r a ke s y s t e m d r a g checks Engine running Position machine on gradual slope. Lower bucket approximately 50 mm (2 in) from ground. Release parking and service Release brakes. ON LOOK : Machine must move or P coast. NOTE : If machine does not move, check brake pedals to be sure they fully release when feet are removed from pedals.

Drive machine at high speed for about 5 minutes. Brake drag is indicated if brake areas in differential case are hot. NOTE : Observe parking brake. If disk is hot, parking brake drag is indicated. OK Check completed. NOT OK Adjust park brake. NOT OK Check floor mat interfer- ence to pedal or debris build-up. IF OK Check for brake pressure when brake is released. Go to brake pressure test. Clutch cut-off check Select clutch cut-off mode to L L mode mode. Release parking brake. Run engine at half speed in 1st forward. Firmly depress brake pedal. F E E L : Transmission must disengage when brake pedal is depressed at 30% of pedal stroke. NOTE :

Clutch cut-off mode can be selected to operator preference to match your loading needs. OK Check completed. NOT OK Adjust clutch cut-off mode.