Gravely pro-stance 36 994131 Operator's Manual page 33

1
2
3
1. Mower Lift Arm
2. Mower Lift Link
3. Drag Link
4. Drag Link Mounting Pin
5. Mounting Hardware
6. Mounting Pin Hardware
Figure 30
Installing Mower Deck
(Figure 30)
1. Slide mower deck under unit.
2. Connect front drag links to deck with
drag link mounting pins.
3. Install link on mower lift arms in same
holes they were removed from.
4. Install PTO mower belt (see PTO Mower
Belt Replacement on page 28).
5. Connect deck lift-assist spring.
6. Level mower deck (see Leveling the
Mower Deck on page 31).
Leveling the Mower Deck
Make these adjustments on a level surface
with the tires inflated to the correct air
pressure.
5
4
6
EN - 31
Check Blade Level and Pitch
1. Raise mower deck to a 95.3 mm
(3.75")/70 mm (2.75") cutting height.
2. Shut off engine. Engage parking brake.
Remove the ignition key.
NOTICE: Place blocks under the bottom
edge of the deck, not under the reinforcement
bar welded along deck face.
3. Place blocks at each corner of the deck
to support the weight of the deck.
4. Turn the blades so the blade ends point
left to right across the width of the deck.
5. Measure the distance between the
ground and cutting edge of the blade on
the left blade (Left position in Figure 31)
and on the right blade (Right position in
Figure 31). Distances should be within
4.8 mm (3/16"). If they are not, raise the
low side of the deck using the height
adjusters on the deck lift brackets (see
Figure 32).
6. After deck is level side to side, check the
deck front to back pitch.
7. Turn the blades so the blade ends point
front to back as shown in Figure 31.
8. Measure the distance between the
ground and the cutting edge of the
forward blade at the front of the deck
(Front position in Figure 31) and
between the ground the cutting edge of
the left and right blades at the rear of the
deck (Rear position in Figure 31).
9. The cutting edge at the front of the deck
(Front position in Figure 31) should be
approximately 3.2 mm (1/8") lower than
the cutting edges at the rear of the deck
(Rear position in Figure 31).
10. If measurements are out of range, raise
the low side of the deck using the height
adjusters on the deck lift brackets (see
Figure 32). Be sure to raise the deck
evenly to keep the deck level side to
side.
NOTICE: Pitching the front of the blades
lower than the rear provides a balance
between cut quality and the power needed to
cut grass. Certain cutting conditions require
the deck to be pitched with the rear of the
blades lower than the front. Heeling the deck
this way requires more engine power but can
provide better cut quality.
11. Remove the blocks from under the deck.