GB - 27
Installing the Mower Deck (Figure 21)
1. Slide mower deck under unit.
2. Install mower mounting arms on frame.
3. Install link chains on the mower lift arms.
4. Raise mower deck to transport position
(see Mower Lift Pedal on page 12).
5. Install mechanical lift spring on each
side of unit (Figure 20).
6. Install PTO belt on electric clutch (see
Replacing Mower Belts on page 24).
7. Level mower deck (see Leveling the
Leveling the Mower Deck
These adjustments should be made on a
level surface with the tires inflated to the
correct air pressure.
Check Blade Level and Pitch
1. Raise mower deck to a 3 in. (7.62 cm)
cutting height.
2. Shut off engine. Engage parking brake.
Remove the ignition key.
NOTE: 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 22)
and on the right blade (Right position in
Figure 22). Distances should be within
3/16 in. (4.7 mm). If they are not, raise
the low side of the deck using the height
adjusters on the deck lift brackets (see
Figure 23).
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 22.
8. Measure the distance between the
ground and the cutting edge of the
middle blade at the front of the deck
(Front position in Figure 22) and
between the ground the cutting edge of
the left and right blades at the rear of the
deck (Rear position in Figure 22).
9. The cutting edge at the front of the deck
(Front position in Figure 22) should be
1/8 in. (3.18 mm) lower than the cutting
edges at the rear of the deck (Rear
position in Figure 22).
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 23). Be sure to raise the deck
evenly to keep the deck level side to
side.
NOTE: 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.
Figure 21
1. Link Chain
2. Mower
Mounting Arm
3. Mower lift Arm
2
1
3
Figure 22
Blade Side-to-Side Level
Blade Front-to-Back Pitch
Front
Rear
Rear
Left
Right
