Brinly LVS-33 BH PolyVAC System - Manual (Page 29)

L-1771-D
d) Using a putty knife or other suitable tool, scrape the
impeller assembly to remove yard debris from the
impeller assembly. Warm water with soap will aid in
this process. A light coat of spray paint or oil will aid in
preventing the surfaces from rusting during the storage
period.
e) Reassemble unit.
2) Thoroughly clean the entire unit of yard debris. Clean
the screens to assure adequate air flow.
3) Lubricate moving surfaces with a light grade oil. Grease
the wheel bearings.
4) Clean the engine according to the engine owner’s
manual. For extended storage, it is important to prevent
gum deposits from forming in the engine fuel system. Refer
to the engine owner’s manual for the proper procedure.
5) Store unit in a clean dry area.
ENGINE MAINTENANCE
WARNING: Always stop engine and disconnect the spark
plug wire before performing and cleaning, lubricating, or
other repairs to the engine or impeller assembly.
1)Check engine oil level before each use. Only use
highquality oils. An SAE 30 grade oil with an API service
classification of SF or SG is recommended. Refer tothe
engine owner’s manual for requirements.
2) Service the air cleaner as required by the owner’s
manual. It is recommended that the service schedule
extremely dusty conditions be followed.
3) At the start of each season the spark plug should be
cleaned and the gap set. Refer to the owner’s manual
for specifications.
4) The impeller assembly normally does not require removal.
It can be cleaned while on the engine. If however the
impeller assembly (B-6890-15) is removed, the use of a
spring washer (B-6697), a special washer (B-7131-01) and
high strength bolt (B-7129) is required for re-assembly. The
following procedure must be followed:
IMPORTANT: Avoid damage! A bent or damaged impeller
will not be balanced and can cause engine damage.
Remove the impeller as follows:
1. Stop engine and disconnect spark plug.
2. Remove the blower hose from the blower housing.
3. Remove the blower housing from the blower housing plate.
4. Remove the bolt (A), spring washer (B) and flat washer (C)
and pull the impeller from the engine shaft (D).
5. Clean the engine shaft and the impeller hub of corrosion,
rust, or other materials.
Installing Impeller
1. Stop engine and disconnect spark plug.
NOTE: Make sure spring washer (B) is installed in
proper orientation, as shown in illustration.
2. Place the impeller on the tapered engine shaft. Install
the bolt with spring washer and flat washer into the engine
shaft. Tighten bolt to 61 N•m (45 lb-ft).
3. Install the blower housing to the blower housing plate
and secure with the original hardware. Install the blower
hose to the blower housing and tighten hose clamp
securely.
29.
STORAGE
1) The impeller assembly must be cleaned prior to
storage for the season and more often if heavy wet
grass is encountered. The following procedure outlines
the steps necessary:
a) Disconnect spark plug from engine.
b) Remove the hose at the connection to the blowr
housing.
c) Remove the 8 screws connecting the blower
housing to te blower housing plate.
A
B
C
D
B