Servicing Double-Insulated Mower; Servicing "On/Off" And Blade Brake System; Storage - Toro 20050 Operator's Manual

4. REMOVING BLADE–Grasp end of blade using a rag
or thickly padded glove. Remove blade bolt, washer
and blade (Fig. 22).
Figure 22
1. Blade bolt
2. Washer
5. SHARPENING BLADE – Using a file, sharpen top
side of blade and maintain original cutting angle
(Fig. 23). The blade will remain balanced if same
amount of material is removed from both cutting
edges.
IMPORTANT: Check balance of blade by putting it on
a blade balancer. An inexpensive balancer can be
purchased at a hardware store. A balanced blade stays
in a horizontal position and an unbalanced blade settles
to the heavy side. If blade is not balanced, file more
metal off cutting edge on heavy end of blade.
1
Figure 23
1. Sharpen at this angle only
6. Reinstall sharp, balanced blade, washer and blade bolt.
Sail part of blade must point toward top of mower
housing to ensure correct installation. Washer is
2206
3. Blade
153
curved and must be reinstalled with curve side down
as shown in (Fig. 22). Tighten blade bolt to 45-50 ft-lb
(61-68 N m).
Servicing Double-insulated
Mower
In a double-insulated mower, two systems of insulation
are provided instead of grounding. No grounding means is
provided on a double-insulated mower, nor should a
means for grounding be added to the mower. Servicing a
double-insulated mower requires extreme care and
knowledge of the system, and should be done only by
qualified service personnel. Replacement parts for a
double-insulated mower must be identical to the parts they
replace. A double-insulated mower is marked with the
words "DOUBLE INSULATION" or "DOUBLE
INSULATED." The symbol (square within a square)
may also be marked on the mower.
Servicing "On/Off" and Blade
Brake System
The motor and blade are designed to stop within 3 seconds
after releasing the control bail. Ensure that the control bail
functions properly before each use of mower. If the blade
does not stop within 3 seconds, or if there is a grinding or
scraping metal-to-metal noise when the control bail is
released, contact your local Authorized Toro Service
Dealer for proper "On/Off" and blade brake adjustment or
replacement.

Storage

Store mower in a cool, clean, dry place. Cover mower to
keep it clean and protected.
1. Clean mower housing. See Cleaning section in
Maintenance chapter.
2. Remove grass clippings, dirt and grime from external
parts of the shrouding and top of mower housing.
3. Check condition of blade. See Blade section in
Maintenance chapter.
4. Tighten all nuts, bolts, and screws.
EN–14