Seat Adjustment; Deck Leveling Adjustment - MTD 660 Series Owner's Manual

Be sure that the lawn is clear of stones, sticks, wire,
or other objects which could damage lawn mower or
engine. For best results and to insure more even
grass distribution, do not mow when lawn is exces-
sively wet.
WARNING: Before leaving the operator's
position for any reason, disengage the blades, place the shift lever in neutral,
engage the parking brake, shunt engine
off and remove the key.
When stopping the unit to empty a grass bag, etc., fol-
low the instructions above. This procedure will also
eliminate "browning" the grass, which is caused by
hot exhaust gases from a running engine.
If unit stalls with speed control in high speed, or if
unit will not operate with speed control lever in a low
speed position, proceed as follows.
1. Place shift lever in NEUTRAL.
2. Restart engine.
3. Place speed control lever in high speed position.
4. Release clutch-brake pedal fully.
5. Depress clutch-brake pedal.
6. Place speed control lever in desired position.
7. Place shift lever in either FORWARD or
REVERSE, and follow normal operating proce-
dures.
OPERATINGTHE CUTTING BLADES
The cutting blades may be engaged while the lawn
tractor is moving or standing still. DO NOT engage
the cutting blades abruptly as the sudden belt tension
on the pulley may cause the engine to stall.
WARNING: Keep feet and hands away
from the discharge opening, the blades
or any part of the deck. When the unit is
used for other than mowing operations,
the blade drive should be disengaged.
Move the lift lever into the DISENGAGED position to
raise the deck and disengage the blades.
GRASS COLLECTORAVAILABLE
GRASS COLLECTOR model 190-063 is available as
optional equipment for the lawn tractors with 36", 38"
or 42" decks shown in this manual. Grass collector
model 190-103 is available for lawn tractors with 46"
decks.
_lb WARNING: The mower should not be
operated without the entire grass catcher
or chute deflector in place.
NOTE: Under normal usage bag material is subject to
wear, and should be checked periodically. Be sure
any replacement bag complies with the mower manu-
facturer's recommendations. For replacement bags,
use only factory authorized replacement bag.
ADJUSTMENTS
SEATADJUSTMENT
The seat may be adjusted to different positions. Refer
to seat installation section of assembly instructions.
DECK LEVELINGADJUSTMENT
If an uneven cut is obtained, the deck may be leveled
by following instructions at end of assembly section.
CUTTING DECK ENGAGEMENT ADJUSTMENT
The cutting deck engagement may be adjusted to
make certain deck is disengaged when lift lever is in
the disengaged position, or to obtain more drive in the
cutting positions, Correct adjustment as follows.
With the engine off, place the lift lever in the highest
cutting position (first position). Remove the cotter pin
and flat washer which secure the disengagement rod
to the stabilizer shaft assembly. Shorten the rod by
threading it in until the ferrule is against the back of
the slot in the lift shaft assembly, and the red lines up
with the hole in the stabilizer shaft. For more belt ten-
sion the disengagement rod must be lengthened. To
decrease belt tension the disengagement rod must be
shortened.
Check the adjustment by placing the lift lever in the
disengaged position. The deck should move up and
forward, allowing the belt to become loose. Start and
test for disengagement. Repeat procedure as neces-
sary.
Stabilizer Shaft
Assembly lisengagement Rod
9
Flat Washer
Hairpin Clip 38" DECK
Stabilizer Shaft /F_Disengagement Rod
Assembly _ /
Spring O /f/i_
Hairpin Clip 42" DECK
FIGURE 12.