Vacuum pump: 1 - gasket, 2 - oil drain hose, 3 - generator, 4 - O-ring, 5 - vacuum pump, 6 - vacuum hose fitting, 7 - control valve, 8 - housing, 9 - oil outlet fitting, 10 - rotor, 11 - blade, 12 - end plate, 13 - pin
Removing the vacuum pump
1. Disconnect the vacuum hoses.
2. Remove the oil drain hose.
3. Turn away bolts of fastening of the pump.
- A) Loosen the three mounting bolts.
- b) Remove the pump.
- V) Remove the O-ring.
Checking the vacuum pump
1. Check the blades for wear and damage.
- Minimum length 22.98 mm
- Minimum height 13.3 mm
- Minimum thickness 5.95 mm
2. Using a micrometer, measure the length, height and thickness of the blades.
3. Checking the control valve.
- A) Check that air flows freely from the side of the vacuum hose fitting through the valve.
- b) Check that air will flow in the opposite direction.
Vacuum pump installation
1. Install a new O-ring in the groove.
2. Install the pump on the generator and tighten the three mounting bolts. Tightening torque 7.8 Nm.
3. Install the oil drain hose.
4. Connect the vacuum hoses.
5. Check pump operation.