Only clean, filtered oil specified in the lubrication chart should be poured into the power steering reservoir.

A paper filter is installed in the pump reservoir

The filter must be replaced every 40 thousand km.

The oil level is considered normal if it is between the marks stamped on the wall of the reservoir.

The oil is added to the upper mark on the reservoir.

The figure shows the installation locations of the parts and their designations according to the spare parts catalog

We look at the figure and the table shows the decoding of the part

fig. 1. ZIL-5301 Power Steering Pump Reservoir

ZIL-5301 Power Steering Reservoir Part Numbers by Catalog

Part No. Part Name

  • 130-3407413 Power Steering Pump Reservoir Cover Gasket
  • 306342-P Sealing Ring
  • 308387-P Assembled Safety Valve
  • 431410-3407417 Reservoir Cover Washer
  • 4331-3407359-02 Filter Element
  • 4331-3407363 Filter Valve Spring
  • 4331-3407372 Filter seal
  • 4331-3407411 Pump reservoir cap
  • 45 9552 1935 Nut
  • 481725-01 Stud
  • 5301-3407304 Power steering pump reservoir with bracket assembly
  • 5301-3407310-20 Power steering pump reservoir assembly

When changing the oil, it is necessary to:

  • - disconnect the longitudinal steering rod;
  • - turn the steering wheel to the left until it stops;
  • - remove the reservoir cap by unscrewing the wing nut;
  • - open the drain hole by unscrewing the plug with magnet from the steering gear housing;
  • - drain the oil into a pre-prepared container;
  • - remove the remaining oil and paper filter from the pump reservoir;
  • - pour 1 liter of fresh oil into the reservoir through a funnel with a mesh and drain it through the drain hole, turning the steering wheel until it stops;
Fig. 2. Reservoir and device for filling and bleeding the hydraulic power steering: 1 - clamping bar; 2 - paper filter element; 3 - filter seal; U - oil level
  • - install a new element and secure it with a clamping bar as shown in Figure 2;
  • - with the steering wheel turned all the way to the left, pour fresh oil into the pump reservoir up to the upper mark and, turning the steering wheel all the way, add oil until at least 2.5 liters are poured into the system;
  • - start the engine and, with the steering wheel idling, turn the steering wheel from lock to lock, holding it briefly in the extreme positions for 2-3 seconds, with a force of approximately 100 N, and add oil as needed up to the upper mark. Filling the oil and removing air from the system is considered complete when air stops escaping in the form of bubbles through the oil in the pump tank;
  • - stop the engine and remove the pressure bar from the paper filter
  • - install the tank cover with the spring and sealing gasket, rubber ring, washer and tighten with a wing nut. The wing nut should be tightened by hand.