5
Maintaining
Your Lawn
Mower
NOTE: When removing the blade, blade adapter, etc.,
be careful not to remove or lose parts above it associ-
ated with the engine pulley.
3.
The blade may be resharpened by removing it and
either grinding or filing the cutting edge keeping
as close to the original bevel as possible. Do not
attempt to sharpen the blade while it is still on the
mower.
It is extremely important that each cutting edge
receives an equal amount of grinding to prevent an
unbalanced blade.
4.
NOTE: Improper blade balance will result in excessive
vibration causing eventual damage to the engine and
mower. Be sure to carefully balance blade after sharp-
ening. Possible damage resulting from blade unbalance
condition is not the responsibility of the manufacturer.
NOTE:testing balance.Always remove blade from the adapter for
Figure 5-3
5.
The blade can be tested for balance by balancing it
on a round shaft screwdriver. Remove metal from the
heavy side until it balances evenly.
WARNING
6
Before reassembling the blade and the blade
adapter to the unit, lubricate the engine crankshaft
and the inner surface of the blade adapter with light
oil.
When removing
7.
Install the blade adapter on the crankshaft with the
“
star” away from the engine. See Figure 5-3. Place
the cutting blade
for sharpening or
replacement or
the blade with the side marked “bottom” (or with part
number) facing away from the adapter. Align the
blade bell support over the blade with the tabs in the
holes of the blade and insert the hex bolt.
when sliding the belt
around it, protect
your hands with a
pair of heavy gloves
or use a heavy rag to
hold the blade.
8.
Tighten the hex bolt to the torque listed below:
Blade Mounting Torque
Center Bolt 450 in. lb. min., 600 in.lb. max.
To insure safe operation of your unit, ALL nuts and bolts
must be checked periodically for correct tightness.
Figure 5-4
Belt Care
1.
An unbalanced blade
will cause excessive
vibration when rotat-
ing at high speeds. It
may cause damage
to mower, and could
break causing per-
sonal injury.
Disconnectthe engine. the spark plug wire and ground it against
2.
bDraineneatheth thfuele catankp toorpreplacevent gaapiecesolineofleplasticakage.
Tip mower on its side (air cleaner side of engine up).
Removeinstructedblade,underadapter,“Blade Candarerelated” abovehardware. as
3.
4.
5.
6.
Loosen self-tapping screw that secures deck baffle
to the deck. See Figure 5-4.
a. Working from the rear of the mower, carefully
remove belt from transmission pulley.
b. Once belt is off transmission pulley, push down on
deck baffle to access engine pulley and slide belt
off this pulley and out from under the deck. Refer
to Figure 5-5.
Figure 5-5
11
| Categories | Gold Lawn Mower Manuals, Lawn Mower Manual, MTD Lawn Mower Manuals |
|---|---|
| Tags | Gold 839, MTD 839 |
| Download File |
|
| Document Type | Owner's Manual |
| Language | English |
| Product Brand | MTD, Lawn Mower |
| Product Type | Walk Behind Mower |
| Document File Type | |
| Publisher | mtdproducts.com |
| Wikipedia's Page | MTD Products |
| Copyright | Attribution Non-commercial |
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