MTD 604H Lawn Mower User Manual


 
15
SECTION 5: MAKING ADJUSTMENTS
Seat
1. Flip the seat up as shown in Figure 7.
2. Loosen the two seat adjustment knobs located under
the seat. See Figure 7.
3. Slide the seat forward or rearward, then tighten the
knobs to lock the seat at the desired position.
4. Put the seat down to the operating position.
Steering
If the tractor turns tighter in one direction than the
other, or if the ball joints are being replaced due to
damage or wear, the steering drag links may need to
be adjusted. Adjust the drag links so that equal
lengths are threaded into the ball joints on both sides.
1. Loosen the jam nut on the drag link at the rear of the
ball joint. See Figure 8.
2. Remove the hex nut and lock washer on top of the
ball joint. See Figure 8.
3. Thread the ball joint toward the jam nut to shorten the
drag link.
4. Thread the ball joint away from the jam nut to
lengthen the drag link.
5. Replace hex nut and lock washer and retighten the
jam nut after proper adjustment is achieved.
NOTE: Threading the ball joints too far on to the drag
links will cause the front tires to "toe-in" too far. Proper toe-in is between 1/16" and 5/16".
Front tire toe-in can be measured as follows:
1. Place the steering wheel in position for straight ahead travel.
2. In front of the axle, measure the distance horizontally from the inside of the left rim to the inside of the right rim.
Note the distance.
3. Behind the axle, measure the distance horizontally from inside of the left rim to the inside of the right rim. Note
the distance.
4. The measurement taken in front of the axle should be between 1/16" and 5/16" less than the measurement
taken behind the axle. Adjust if necessary.
Leveling the Deck
NOTE: Check the tractor’s tire pressure before performing any deck leveling adjustments. Refer to Tires later in this
section for further information regarding tire pressure.
Front To Rear
The front of the cutting deck is supported by a stabilizer bar that can adjusted to level the deck from front to rear.
The front of the deck should be between 1/4-inch and 3/8-inch lower than the rear of the deck. Adjust if necessary:
WARNING: Never attempt to make any adjustments while the engine is running, except where specified
in the operator’s manual.Disconnect spark plug wire(s) and ground against the engine before performing
any adjustments, repairs or maintenance.
WARNING: Before operating this machine,
make sure the seat is engaged in the seat stop,
stand behind the machine and pull back on seat
until fully engaged into stop.
Figure 7
Seat Knob
Drag Link
Ball Joint
Axle
Pivot
Hex Nut &
Jam Nut
Lock Washer
Grease
Figure 8
Bar
Fitting