ZIL-5301 engine coolant pump
The liquid pump device is shown in the figure.
The body of the liquid pump assembly must be tested with water at a pressure of 0.2 ± 0.01 MPa for 2 minutes. In this case, leakage or the appearance of drops is not allowed
The contact area of the end surface of the support sleeve of the fluid pump housing when checking for paint must be at least 85% with a continuous ring print width of at least 2 mm.
The impeller must be statically balanced. Residual imbalance - no more than 60 g.mm.
The mass should be corrected by drilling in the flat end of holes with a diameter of 8 mm at a radius of not more than 37 mm. Drill exit is not allowed.
The fluid pump pulley must be statically balanced. Residual imbalance - no more than 80 g mm.
The mass should be corrected by drilling at the end of holes with a diameter of 8 mm at a diameter of 100 mm to a depth of no more than 8 mm.
The thickness of the jumpers between the holes must be at least 5 mm.
The end of the sealing washer during the assembly of the liquid pump must be covered with a thin layer of colloidal graphite lubricant OST 6.08.430-74.
The bearing cavity must be filled with Litol-24 grease weighing 35.. .40 g.
The nut must be tightened to a torque of 100…120 Nm.
Protrusion of the impeller beyond the end of the liquid pump housing is allowed no more than 0.4 mm, and sinking - no more than 1 mm.
The runout of the conical surfaces of the pulley of the liquid pump is allowed no more than 0.3 mm when the indicator is installed perpendicular to the generatrix of the conical surface.
The end runout of the liquid pump pulley flange is allowed no more than 0.35 mm at the extreme points.
The radial runout of the outer diameter of the fluid pump pulley hub is allowed no more than 0.15 mm.
The fluid pump assembly must be tested for performance at the stand OR-18003-07.
With a pump shaft speed of 2600±20 min-1 and a back pressure of 0.03 MPa, the pump performance should be at least 2.25cm3/s.
Fan
Riveted fan rivet heads must be at least 3mm high and 7mm in diameter.
A gap between the shank of the cross and the blade at a distance of 5 mm around the rivet shaft is not allowed.
At a distance of 5÷10 mm around the rivet shaft, the gap should be no more than 0.1 mm, and at a distance of 5 mm from the inner edge of the blade - no more than 0.2 mm.
The identical side edges of the fan blades must lie in the same plane with a tolerance of 3 mm.
The runout of the side edges of the fan blades is allowed no more than 3 mm at the extreme points.
For one fan, the difference in the width of the blades in the plane of the crosspieces should not exceed 4 mm.
The fan assembly must be statically balanced. Residual imbalance - no more than 250 g-mm.
The mass must be corrected by welding to the convex surface of the blade steel plates of round or rectangular shape with a thickness of no more than 1.5 mm in the amount of no more than two per blade and no more than two blades.
The fan must be painted in a bright color different from the color of the diesel engine.
Since 1999, diesel engines have been equipped with fans with an uneven X-shaped arrangement of blades, which are completely interchangeable with previously installed fans.
