Removing and Installing Centrifugal Governor

Removing and Installing Centrifugal Governor






Transmission (1)
Lower slightly at rear by removing rear engine mount, installing mount. Detach, attach exhaust system at rear.

Cover (46)
Press in and remove with snap ring (47), check O-ring (48), renew if nessary.

Locking ring (43)
Compress with pliers 201 589 00 37 00 and withdraw centrifugal governor (50) as far as possible. Push transmission onto right side and take out centrifugal governor (steps 6 and 7).

Helical gear (41)
Detach by removing locking ring (40). When installing, the driver pin must engage in the hole in the helical gear (step 8).

Control valve
Check for ease of movement (step 9)

Special Tool






Removal and Installation

1. Remove rear engine mount. Unscrew flexible coupling on hinged flange of transmission.

2. Detach exhaust system at rear.

3. Press in cover (46), remove snap ring (47) together with cover.






Installation Instruction
Press cover (46) out the way again until it is resting against snap ring (47).

4. Turn hinged flange so that the centrifugal governor (50) adopts the position shown in the illustration.






5. Align locking ring (43) until the gap (arrows) at the top and bottom is the same.

6. Compress locking ring (43) with pliers 201 589 00 37 00 and withdraw centrifugal governor as far as possible.

Installation Instruction






Turn bearing ring so that the lug (arrow) is pointing down the way.

Attach pliers (072) 201 589 00 37 00 as shown in the illustration and compress locking ring (43).

Press transmission to the right and insert centrifugal governor with pliers pressed; the lug (arrow) must be inserted into the slot in the housing.






7. Place a piece of wood against the tunnel (arrow) with an assembly bar, press the transmission to the right side and take out the centrifugal governor.

8. Take off locking ring (40) and pull off helical gear (41).






Installation Instruction
Fit on helical gear (41) so that the driver pin (arrow) mashes into the hole in the helical gear.






9. Move flyweights (f), at the same time checking the ease of movement of the control valve in the openings (arrows).






Note:
It must be possible to move the control valve easily; wash the centrifugal governor, if necessary, until clean and blown dry. If it is not possible to release the control valve in this way, replace the centrifugal governor.
In this case, the helical gear (41) from the removed centrifugal governor must be transferred to the new governor.