Repair ZIL-5301

The final drive can be adjusted or repaired without removing the rear axle from the vehicle.
The preload of the final drive bearings, the lateral clearance in the engagement and the contact patch are adjusted at the factory and, as a rule, they do not require adjustment during operation.

When removing the clutch from the vehicle, it is necessary to disconnect the clutch release drive. This work can be performed both with and without disconnecting the pipelines

Adjustment of the D-245 boost corrector
The rod movement should begin when the air pressure in the above-diaphragm space is 0.005-0.010 MPa

ZIL-5301 vehicles are equipped with a combined pneumatic-hydraulic brake drive with two independent hydraulic pneumatic circuits, divided into two circuits until July 2001, option 1 (Fig. 1a), and currently - option 2 (Fig. 1b)

Based on operating experience, it is advisable to change the fine filter after 3-4 thousand km.
To replace the filter, we will need wrenches "13", "19", "17", a brush, a 1L container for draining fuel from the housing.

Disassembling the ZIL-5301 pneumatic hydraulic booster
Disassembling the pneumatic hydraulic booster (PGU) for repairs is usually done in the following cases: fluid leaks through cuffs 29, 33, due to their swelling when using low-quality fluids; when the cuff of the pneumatic piston 23 wears out.
The probability of failure of other parts is small