38
DR
®
WALK-BEHIND LEAF & LAWN VACUUM
Tip:
Using a penetrating oil can help loosen a stuck Impeller.
8. If you still cannot loosen the Impeller, obtain a 3/8"-24 x 3-3/4" Bolt, and thread the Bolt by hand into the
Engine Crankshaft until the Bolt bottoms out. Using a suitable gear or wheel puller against the Bolt
Head and the backside of the Impeller (near the blades), remove the Impeller from the Crankshaft.
NOTE:
Make sure that the Key stays in the Keyway in the Engine Crankshaft
(
Figure 22
).
Replacing the Impeller:
1. Apply a thin coat of Anti-Seize Compound to the Engine Crankshaft and reinstall the Impeller by aligning
the Key in the Crankshaft with the Keyway in the Impeller (
Figure 22
).
NOTE:
Use a new Impeller Cap Screw (3/8"-24 x 2-3/4" w/Patch Lock) and a new Lock Washer (3/8" Twisted
Tooth) when reinstalling the Impeller.
2. Tighten the Impeller Bolt and torque to 50 ft.-lbs.
3. Reinstall the Engine, Impeller, and Mounting Plate on the Impeller Housing in the reverse order of
removal.
4. Before connecting the Spark Plug wire, slowly pull the Recoil Starter Handle to insure that the Impeller
rotates freely within the housing.
BE CERTAIN TO FILL THE ENGINE WITH OIL BEFORE STARTING. SEE PAGE 20.
5. Reconnect the Spark Plug Wire.
