MAINTENANCE GENERAL MAINTENANCE AND ADJUSTMENT
13. Fit the road wheels, lower the vehicle and finally tighten the wheel retaining nuts.
This second part of the maintenance section covers adjustments and items of general maintenance as dictated by the ‘Maintenance Schedules’. However, only maintenance operations that are not included in the Overhaul Sections of the manual appear in this section.
EXAMINE AND RENEW FRONT BRAKE FRICTION PADS Examine the friction pads for wear and if less than 3 mm (0.125 in) thick or oil contaminated, they must be renewed on both wheels at the same time, as follows:
.
NOTE: See Book 4 Section 70 for latest method of friction pad retension. l.+Slackcn both front wheel nuts and jack-up the vehicle and lower onto axle stands, and remove whecls. 2. Clean the exterior of the calipers. 3. Remove the split pins from the brake caliper. 4. Remove the retaining springs. 5 . Withdraw the friction pads. 6. Clean the exposed parts of the pistons, using only new brake fluid.
CLEAN AND CHECK AXLE BREATHERS valve type (where fitted)
- ball
1. Clcan the outside of the breather and unscrew from the axle tube. 2. Wash the breather in petrol and shake to ensure that the ball valve is free. 3. Lubricate the ball with engine oil and refit to axle tube.
I
7. Using piston clamp 186672 press each piston back into its bore, whilst ensuring that the displaced brake fluid does not overflow from the reservoir. 8. Smear the faces of the pistons with Lockheed disc brake lubricant taking care not to !et any reach the lining material. 9. Insert the new friction pads. 10. Place the friction pad retaining springs in position and fit new split pins and splay the ends. 11. Apply the footbrake several times to locate the pads. 12. Check the fluid reservoir and top-up if necessary. 8
Remote axle breathers - wherefitted Pipes attached to the breathers on the axles terminate at p i f i t s iiiside the chassis members oil eariy muueis and into the engine compartment on later vehicles. This allows the axles to breath whilst the vehicle is traversing mud and water. No maintenance is required except to ensure that the pipe: do not become blocked, kinked, or split, or damaged in any other way to prevent proper breathing. ,
I