O-Ring For Pump-Injector Unit, Removing and Installing

O-Rings For Pump-Injector Unit, Removing And Installing

Recommended special tools and equipment







- T10056 assembly sleeves

Removing
- Pry off old O-rings from Pump-Injector Unit extremely carefully.
- Make sure that no burrs are created in O-ring seat.

Installing

NOTE:
- Always use assembly sleeves for installing O-rings. If not used, there is a danger the O-rings may be damaged.
- O-rings without distinguishing color markings are being gradually introduced. Ensure the correct allocation of O-rings to grooves: ring strength decreases in direction toward injector.
- Avoid rolling movements when sliding on O-rings. O-rings must not be twisted on themselves in the seat of Pump-Injector Unit.

- Pull off heat protection seal together with securing ring.
- Clean seating surfaces for O-rings on Pump-Injector Unit very carefully.







- Insert assembly sleeve T10056/1 up to stop on Pump-Injector Unit.
- Slide upper, thicker O-ring carefully on assembly sleeve and into seat of Pump- Injector Unit.
- Remove assembly sleeve.







- Insert assembly sleeve T10056/2 up to stop on Pump-Injector Unit.
- Slide the center, thinner O-ring carefully on assembly sleeve and into seat of Pump- Injector Unit.
- Remove assembly sleeve.







- Insert assembly sleeve T10056/3 up to stop on Pump-Injector Unit.
- Slide the lower O-ring carefully on assembly sleeve and into seat of Pump-Injector Unit.
- Remove assembly sleeve.
- Slide on a new heat protection seal together with securing ring.