Inspecting The Wear Ring And Impeller; Wear Ring - Mercury 200 OptiMax Jet Drive Service Manual

Pump Unit
Impeller Nut Socket
Impeller Shaft Wrench

Inspecting the Wear Ring and Impeller

Wear Ring

1. Inspect the wear ring for excessive scoring and/or grooves. Replace the wear ring if deep grooves are present or if severe
scoring has taken place.
2. Ensure that the O‑ring is in the counterbore before installing the wear ring to the drive housing.
a
3. Refer to Nozzle and Rudder Components for the following:
a. Inspect the seal in the stator for wear/damage.
b. Inspect the bellows on cables for wear.
c. Inspect the anodes, replace as necessary.
d. Inspect the pivot pins and bushings, replace as necessary. Tighten the reverse gate pivot pins and rudder pivot pins to
the specified torque. Use Loctite 271 Threadlocker on the threads.
Description
Reverse gate pivot pins
Rudder pivot pins
Tube Ref No.
Loctite 271 Threadlocker
7
e. Inspect the impeller for cracks and damaged blades.
f. Inspect the stator vanes for cracks and/or damage.
Page 5A-24
b
Description
91‑850297
91‑832093A 1
a - O‑ring
b - Wear ring surface
45260
Where Used
Reverse gate and rudder pivot pin threads
Nm lb‑in.
68
68
Part No.
92-809819
90-8M0050731 MAY 2011
lb‑ft
50
50