Section 8: Maintenance; General Recommendations; Cutting Blade - MTD 344 Operator's Manual

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Do not jump-start directly at the battery.
IMPORTANT:
Do not allow positive and negative cable clamps to
touch each other. Do not jump-start a damaged or
frozen battery.
Pull back the boot from the forward most terminal
connected to the solenoid. See Figure 15.
Connect the positive (+) lead of the jumper cable to
this terminal. See Figure 15.
Connect the other end of the positive (+) jumper
cable to the positive (+) post of the good battery.
Connect one end of the negative (-) jumper cable to
the negative (-) post of the good battery.
Connect the other end of the negative (-) cable to
the throttle bracket. See Figure 15.
Start the tractor and leave it running to charge the
battery.
Disconnect the negative (-) jumper cable from the
tractor.
Disconnect the other end of the negative (-) jumper
cable from the negative (-) post of the good battery.
Disconnect the positive (+) jumper cable from the
positive (+) post of the good battery.
Disconnect the other end of the positive (+) jumper
cable from the solenoid.
Replace boot over the forward most terminal from
where you removed it in Step 1. See Figure 15.
To charge the battery
If battery is new or if the riding mower has been stored
for an extended period of time, charge the battery for

SECTION 8: MAINTENANCE

General Recommendations

Always observe safety rules when performing any
maintenance.
The warranty on this riding mower does not cover
items that have been subjected to operator abuse
or negligence. To receive full value from the
warranty, operator must maintain the riding mower
as instructed in this manual.
WARNING:
Always stop engine and
disconnect spark plug wire before any
maintenance or adjustments.

Cutting Blade

WARNING:
Protect your hands by wearing
heavy gloves or using a rag to grasp the cutting
blade. Avoid personal injury.
Removal
Remove the 5/8'' hex flange nut which holds the
blade to the blade spindle.
one hour with a battery charger (output 6 amps) before
using your riding mower. Read safe operating
instructions on battery charger before starting this job.
If a charger with 6 amps output is not
IMPORTANT:
available, use a lower output charger for a longer
charging period. However, do not use a charger with
higher than 6 amps output. If a charger is not available,
but the battery is able to start the riding mower, run the
mower for a minimum of one hour of mowing to charge
the battery with the engine's charging system.
NOTE: Use the remote terminal on the solenoid to
charge the battery. Do not charge at the battery.
Pull back the boot from the forward most terminal
connected to the solenoid. See Figure 15.
With the battery charger off, connect the positive
(+) lead of the charger cable to this terminal. See
Figure 15.
Connect negative (-) lead of the charger cable to
the throttle bracket.
Turn the battery charger on. Charge the battery
until the indicator on the charger shows full charge.
Turn battery charger off. Disconnect the negative
charger cable (marked -) from the throttle bracket.
Disconnect the positive charger cable (marked +)
from the solenoid terminal.
Replace boot over the forward most terminal (from
where you removed it earlier). See Figure 15.
Remove blade from the spindle. See Figure 16.
Sharpening
When sharpening the blade, follow the original
angle of grind as a guide. It is extremely important
that each cutting edge receives an equal amount of
grinding to prevent an unbalanced blade. An
unbalanced blade will cause excessive vibration
when rotating at high speeds, may cause damage
to the mower and/or cause personal injury.
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.
Reassembly
Before reassembling the blade to the unit, lubricate
the spindle with light oil (or engine oil).
Be sure to properly align "star" fitting on blade with
"star" on spindle.
When replacing the blade, be sure to install the
blade with the side of the blade marked "Bottom" (or
with part number) facing the ground when the
mower is in the operating position.
18

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