Case 845B, 845B DHP, 865B, 865 VHP, 865B AWD Grader Service Manual

Table of Contents

1. General
2. Engine
3. Fuel System
4. Electrical
5. Steering
6. Power Train
7. Brakes
8. Hydraulics
9. Mounted Equipment

Manual Extract: Routine Maintenance

The routine maintenance set out below is suggested to keep the brake system in good working order.

1. Check to insure floating parts move freely and that all other parts are mounted securely. Tighten hardware as required.
2. Check actuator linkage to insure that there is adequate freedom of movement for positive brake operation.

3. Adjustment of pad gap is accomplished by adjusting the actuating cable or linkage. If adjustment is used up, back off cable or linkage. Unbend tab on antirotating clip and loosen screw enough to disengage lever spline. Rotate the lever one tooth, in the direction opposite the actuation direction, and retorque the screw making sure the spline teeth are properly engaged.
Bend up a tab that aligns with one of the screw head flats, to prevent screw rotation. Both lever and linkage must be free to return to home position. An external return spring is required.

4. Check – disc surface condition. Replace if it is badly warped, pitted, or below minimum recommended thickness.
Check for loose mount bolts. Retighten if necessary.

5. Check that the brake pads are at least 1.0 mm (0.039 in) thick. Replace worn friction pads.

6. Generally, if the disc is still running true and the pad clearance is still adjustable, no other maintenance is required. To check for wear, measure the distance from the carrier side casting face to disc face. If the distance is less than 1.5 mm (0.059 in), replace the brake pads